______what is parthenogenesis______​

Answers

Answer 1

Answer:

Parthenogenesis is the so—called "same-s## r*production"


Related Questions

In a certain plant, blue (B) flower color is dominant to white (b). You have a blue-flowered plant and a white-flowered plant. What do you know about the genotype and phenotype of each plant? Now you cross the plants and all the offspring are blue. What have you learned about the genotypes of the original plants?

Answers

The blue flower could have the genotype Bb or BB, because dominant alleles mask recessive alleles. The white plant can only have the genotype bb. If we cross the recessive genotype with our unknown dominant phenotype, that is a test cross. We expect to see all blue flowers if the blue plant has BB genotype because all flowers will be Bb(heterozygous). If any flowers from the cross are white, the blue plant is Bb because we can make the combinations: Bb & Bb.

Question 1 (1 point) Mr. Crab loves to fry food. But the grease often splatters everywhere making a big mess. He decides to set up a test in order to determine which dish soap is best at removing grease. He washes 20 greasy dishes with standard Dawn dish soap and washes another 20 greasy dishes in his own Super Awesome Amazing dish soap. What is the independent variable in this experiment?

How much grease is removed

How quickly the dishes were cleaned

The brand of dish soap​

Answers

The independent variable is how much grease is being removed. So the correct option is A.

What is meant by independent variables?

Any object, idea, time period, or any of the categories that are being measured will be called a variable.

A variable that is not changed by any other factors of the experiment is called an independent variable. In simple words, this is a factor that is independent of the other variables.

For example, in the above me experiment, the amount of grease removed will be the same. Even if a soap takes a long time and effort to remove grease, it will remove all the grease. Thus the amount of grease removed is an independent variable in this case.

However, a variable that is affected by the other variables in the experiment is called a dependent variable. For example, the soap which is not efficient will take more time to remove grease than the soap which is efficient.

Here, the type of soap is a variable that is affecting the time taken to clean the dishes. The type of soap and the time taken to remove the grease are dependent variables. The amount of grease removed is an independent variable.

Therefore the correct option is A.

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What was the climate like prior to the extinction ?

Answers

Answer:

The extinction you are referring to is unclear, as there have been several mass extinctions throughout Earth's history. However, it is generally accepted that climate has played a significant role in many of these events. Prior to some of the mass extinctions, such as the Permian-Triassic extinction and the Cretaceous-Paleogene extinction, the climate was warm and tropical with high levels of carbon dioxide in the atmosphere. This warm climate was likely a contributing factor to the extinction, as it may have led to changes in sea level, ocean circulation, and weather patterns that disrupted ecosystems and caused widespread extinction of species. However, it is important to note that climate is just one of many factors that can contribute to mass extinction events, and there are often multiple causes involved.

•Based on cellular respiration, why does cardiac arrest (heart stops beating) decrease brain activity? Hint: think about what happens in the absence of blood flow and oxygen levels.

Answers

Answer:

the heart stops pumping as much blood to the brain which will lower the amount of funtion.

The circulatory aids the digestive system by....

A. Moving oxygen around the body

B. Taking nutrients to cells in different parts of the body

C. Creating electrical currents used to move messages around the body

D. Providing support and structure to the body

(I’ll give points + brainalist for the correct answer)

Answers

I believe it’s B ……..

Answer:

Jacksom you wanna zo.o.m?

~Janiyha

Food grain are stored in the blank for future use

Answers

Food grains are stored in the warehouse or granary for future use to maintain the production and supply of food in the country and it is also considered as a security measure for the farmers and government agencies.

The grain storage system is important to preserve the nutritional value of the food grains and avoid the losses incurred due to pests, rodents, and other natural calamities such as floods and droughts.

Food grains are the essential components of the human diet, and they need to be stored with utmost care and caution. The quality of food grains plays a crucial role in ensuring the food security of the country. The farmers and the government agencies take care of storing the food grains in the warehouses, which are usually built in the proximity of the grain-producing areas. These warehouses should be equipped with the latest technologies and tools to ensure the safe storage of food grains.

The government also provides subsidies and financial support to the farmers to build their warehouses to store the food grains. The food grain storage system is crucial for ensuring the continuous supply of food and for the survival of the farmers, especially in the developing countries.

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What enzyme maintains a stock of ATP-G-actin for when the cell needs a burst of ATP-G-actin?

-Profolin

-Thymosin B-4

- ADF/cofilin

Answers

ADF/ cofilin enzyme maintains a stock of ATP-G-actin for when the cell needs a burst of ATP-G-actin. The correct option is C.

Thus, The dynamics of filament assembly are modified by ATP-binding on actin subunits, with ATP-binding often favoring intersubunit interactions and hence filament assembly .

While the rate of subunit loss is independent of the concentration of free ATP-G-actin, the rate of actin addition to filaments is dependent on it. Actin filament development occurs when the rate of addition exceeds the rate of dissociation at high concentrations of free ATP-G-actin.

Small, naturally occurring compounds called toxins, including as phalloidins, cytochalasins, latrunculin A, and jasplakinolide, attach to actin and change how it polymerizes.

Thus, the ideal option is C.

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How did the plant cells differ from the bacteria and protistan cells? Size? Color? Shape? Nucleus or other organelles visible?

Answers

Plant cells, bacteria cells, and protistan cells differ in several ways.

Size: Plant cells are generally larger than bacterial and protistan cells. Most plant cells range from 10 to 100 micrometers in size, while bacterial cells are typically between 0.5 and 5 micrometers and protistan cells can vary greatly in size, ranging from 2 micrometers to over a millimeter.

Color: Plant cells contain chloroplasts, which give them a green color due to the presence of chlorophyll. Bacterial and protistan cells do not contain chloroplasts and therefore do not have a green color.

Shape: Plant cells are typically rectangular or square-shaped, while bacterial and protistan cells can have a variety of shapes including spherical, rod-shaped, or spiral-shaped.

Nucleus or other organelles visible: Plant cells have a well-defined nucleus that is visible under a microscope. They also contain other organelles such as mitochondria, endoplasmic reticulum, and Golgi apparatus. Bacterial cells do not have a nucleus but instead have a single circular chromosome that is located in the cytoplasm. They may also contain other structures such as ribosomes, plasmids, and flagella. Protistan cells may or may not have a well-defined nucleus depending on the species, but they do contain other organelles such as mitochondria, lysosomes, and vacuoles.

Plant cells differ from bacteria and protistan cells in several ways, including size, shape, and the presence of certain organelles.

Size: Plant cells are generally larger than bacterial cells and some protistan cells, but can vary widely in size depending on the specific type of plant cell. For example, a typical plant cell may be around 10-100 micrometers in diameter, while bacterial cells are generally smaller, ranging from 0.5-5 micrometers in diameter.

Shape: Plant cells have a fixed shape that is determined by their cell walls, which provide support and protection for the cell. Bacterial cells and some protistan cells do not have cell walls, and their shape can vary widely depending on the type of cell.

Nucleus and organelles: Plant cells, like other eukaryotic cells, have a distinct nucleus and a variety of organelles that perform specific functions within the cell. These organelles include the endoplasmic reticulum, Golgi apparatus, mitochondria, and chloroplasts. Bacteria and many protistan cells, on the other hand, do not have a distinct nucleus or membrane-bound organelles.

Color: Plant cells are typically green due to the presence of chloroplasts, which contain the pigment chlorophyll. Bacteria and protistan cells do not have chloroplasts and are typically colorless, although some may have other pigments that give them a specific color.

In summary, plant cells differ from bacteria and protistan cells in terms of size, shape, the presence of distinct organelles, and color.

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Plane is traveling south at 500 m/hr. Wind is blowing 80 m/hr north. What is the effect on the plane?

Answers

Answer:

The plane will be moving forward at 420 m/hr

Explanation:

The plane is traveling at 500 m/hr but there is 80 m/hr acting against it so you take away 80 from 500 which is 420.

Where are the A, B and RH antigens located

Answers

Answer: The A, B, and Rh antigens are located on the surface of red blood cells.

Explanation:

HI i would like some help asap

HI i would like some help asap

Answers

Answer: methionine, arginine, threonine

Explanation:

A stressor can be something "good" or pleasant as well as something bad

true or false

(Anatomy and physiology)

Answers

Answer:

True

Explanation:

A stressor can be defined as the biological, chemical, environmental, or economical events that causes stress to a person. A stressor can be both good and bad because a stressor considered as challenging and demanding, so its not always bad to feel the same.

For example: when we are going for a roller coaster ride for fun, it also causes stress while having fun but that is a good stressor and when you are going for a date it can also cause stress which is also a good stress.

Bad stress may include financial weakness and death of close one.

Hence, the given statement is true.

Structures of the Cell Quick Check
The endomembrane system is a collection of membrane-bound organelles in eukaryotic cells that handles the production and processing of proteins that will be used in
organelles or exported to the outside of the cell. The rough endoplasmic reticulum, Golgi apparatus, and smooth endoplasmic reticulum all have parts to play in this
system. These functions are
respectively
Identify the answer choice that correctly fills in the blank in the above passage.
(1 point)
O DNA making, DNA packaging, and DNA storing
O protein packaging, protein making, and lipid production
O protein making, protein packaging, and lipid production
O DNA packaging, DNA making, and DNA storing

Answers

The statement that correctly fills in the blank spaces in the above passage about the rough endoplasmic reticulum, Golgi apparatus, and smooth endoplasmic reticulum is protein making, protein packaging, and lipid production respectively.

What is endomembrane system of the cell?

The endomembrane system of the cell is the collection of membrane-bound organelles in eukaryotic cells that handles the production and processing of proteins that will be used in organelles or exported to the outside of the cell.

These organelles together with their functions include the following:

Rough endoplasmic reticulum: This is the organelle that is used by the cell to produce proteins.

Golgi apparatus: This is the organelle that is used by the cell to package proteins into membrane-bound vesicles.

Smooth endoplasmic reticulum: This is the organelle that is used by the cell for lipid production.

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Answer: protein making, protein packaging, and lipid production

What is the name of the thick, lower end of the digestive tract where solid waste is gathered and leaves the body? O esophagus o small intestine Oliver o large intestine​

Answers

Answer:popopopop

Explanation:

give point

Answer:   Large Intestine

Hope this helps

Several factors determine the distribution of biomes on the planet. Which factor is considered most important ?


A. Landforms
B. organisms
C. altitude
D. precipitation

Answers

Answer:

id assume precipitation

psychology is also known as folk psychology
O research
clinical
popular
scientific

Answers

Answer:

Research

Explanation:

In philosophy of mind and cognitive science, folk psychology, or commonsense psychology, is a human capacity to explain and predict the behavior and mental state of other people.

How would you explain the key concepts for the CWA in less than two minutes?

Answers

Answer:

Explanation:

vPoint Source - a source of water discharged to surface water through a discrete point - generally through a pipe, ditch, or channel.

Nonpoint Source - Nonpoint sources, such as parking lots or athletic fields, discharge runoff water to groundwater or surface water; runoff does not come from  a pipe, ditch, or channel. These sources may contain pollutants such as pesticides, motor oil, and soaps.

Navigable Waters of the United States  For the purposes of the Clean Water Act, the term "navigable waters" includes:

all waters used in commerce, including groundwater;

all interstate waters including wetlands, mudflats, and sand-flats; and

all other waters such as lakes, rivers, streams, wetlands and sloughs.

EPA policy states, "The majority of facilities in the U.S. have the potential to discharge to navigable waters."  The Supreme Court decision in (2006) requires the Army Corps of Engineers and the EPA to determine whether there is a "significant nexus" between a navigable waterway and an area a spill might affect.  In June of 2007, EPA and the Army Corps of Engineers released provisional interpretive guidance regarding the "significant nexus” question. According to this guidance, the agencies will assert jurisdiction over traditional navigable waters, wetlands adjacent thereto, and relatively permanent tributaries thereof. The agencies will generally not assert jurisdiction over swales and ditches that lack routine water flow. Finally, the agencies will apply the "significant nexus" requirement and make a case-by-case, fact-specific analysis on impermanent tributaries and other wetlands.

Additional executive orders were issued 2015 in 2019.  Under the 2019 proposal, traditional navigable waters, tributaries to those waters, certain ditches, certain lakes and ponds, impoundments of jurisdictional waters, and wetlands adjacent to jurisdictional waters would be federally regulated. It also details what are not "waters of the United States," such as features that only contain water during or in response to rainfall (e.g., ephemeral features); groundwater; many ditches, including most roadside or farm ditches; prior converted cropland; stormwater control features; and waste treatment systems.

Could the requirement for one or more NPDES Discharge Permit apply to my campus?

If your campus discharges pollutants directly to navigable waters of the United States through a point source, you must obtain an NPDES permit or redirect the flow of the waste.

Stormwater releases from certain activities require an NPDES permit. The most common activities on college campuses requiring NPDES permits for stormwater are construction activities disturbing more than 1 acre, hazardous waste storage areas operating under the Resource Conservation and Recovery Act permit system, steam-generating power plants, and airports. See Stormwater section below.

Regulations issued by local water authorities, or Publicly Owned Treatment Works (POTWs), not NPDES permits, govern discharges into sanitary sewer systems. See Sewer Use (POTW) section below for more information about requirements for using POTWs for commercial or industrial waste disposal.

What do I have to do related to NPDES Discharge Permits?

Determine where wastewater flows from buildings and processes on your campus. Any industrial or commercial operation (e.g., ice rink melt pits, floor drains, and vehicle wash stations) that discharge into a water of the United States may require an NPDES permit. If required, you must obtain such a permit from the appropriate regulatory agency, probably your state environmental agency.

French drains, dry wells, and septic system leach fields are different from point source discharges because they do not immediately affect surface water. Some state and federal environmental agencies manage these systems under the Underground Injection Control program, part of the Safe Drinking Water Act. See Safe Drinking Water Act for more information.

Details of NPDES

why carbohydrate digestion occurs first in mouth?​

Answers

The digestion of starch carbohydrate is initiated in mouth due to the action of starch digesting enzyme ptyalin or salivary amylase present in saliva secreted by salivary glands. Enzymatic hydrolysis helps in the partial breakdown of starch (polysaccharide) into maltose and isomaltose (disaccharides) and small dextrins called 'limit' dextrins. Nearly 30% of the starch is hydrolysed in the oral cavity because of the shorter time the food is retained here

due to the action of starch the carbohydrate digestion occurs first in mouth

4. Atropine (an anti-cholinergic medication) blocks muscarinic receptors. Which of the following symptoms would you expect to see in a patient who is not in homeostasis because of an excessive atropine dose? (more than one answer possible—circle all that apply)
a) decrease in salivation
b) increase in sweating
c) decrease in motility of digestive tract
d) dilation of pupil of eye
e) increase in lacrimation (tear production in eye)
f) decrease in heart rate
g) urinary retention

Answers

kahskdjshjslakjshdhvshsuababna

What characteristics define bacteria?​

Answers

Answer:

There are three notable common traits of bacteria, 1) lack of membrane-bound organelles, 2) unicellular and 3) small (usually microscopic) size. Not all prokaryotes are bacteria, some are archaea, which although they share common physicals features to bacteria, are ancestrally different from bacteria.

Answer:

Bacteria are like eukaryotic cells in that they have cytoplasm, ribosomes, and a plasma membrane. Features that distinguish a bacterial cell from a eukaryotic cell include the circular DNA of the nucleoid, the lack of membrane-bound organelles, the cell wall of peptidoglycan, and flagella.

16. Which type of epithelium is found in uterine tubes(oviducts)?

Answers

The inner lining of the tube like systems possesses the ciliated epithelium. The cells bear shorter hair like projections called cilia which beat and allow the movement of the particles. The fallopian tubes are lined with cilia and vibrate to move the egg or the mucus in the cavity

Hypothesis: If the tire pressure for a car is set at the manufacturer's recommended amount, the gas mileage of the car will increase.

How would you test this hypothesis?​

Answers

Answer:

Seems more like a physics question but anyways

Explanation:

Tyre air pressure as recommended by the manufacturer ensures less energy application in moving your car, and easy movement of the engine means low fuel gulping. Regular air pressure check not only improves fuel efficiency but also results in smoother handling and better control of your car.

The term “trisomy” means

A there are 3 sets of chromosomes.

B there are 3 of the same chromosome.

C there are 3 genes on the chromosome.
Help ASAP

Answers

Answer:

B

Explanation:

trisomy means there are 3 of the same chromosome

Bye :-)

Crossing over, an important process that creates a great deal of the genetic diversity within a species, takes place during which phase of meiosis?
Select the correct response:
prophase 1
anaphase 1
prophase 2
metaphase 1

Answers

Answer:

efbjrebgkrekgekgr fregkbr

Explanation:

rrkf fkaewrkregrg

Explain the similarities and differences that exist between extinct species and humans.

Answers

Answer:

Difference Between Endangered Species and Threatened Species. ... what are the other causes apart from humans that can drive an entire species to ... When a species exist no longer, it is considered as extinct.

Name four divisona of seedless vascular plants and give examples

Answers

The four divisions of seedless vascular plants are; Lycophyta, Pteridophyta, Psilotophyta, and Equisetophyta.

Lycophyta; This division includes clubmosses, spikemosses, and quillworts. They have small leaves, are typically found in moist habitats, and have a primitive vascular system. For example; Selaginella species, Lycopodium species.

Pteridophyta; This division includes ferns, horsetails, and whisk ferns. They have larger leaves than lycophytes, more advanced vascular systems, and are found in a wide range of habitats. For example; Ferns (e.g., Adiantum, Pteris), Horsetails (e.g., Equisetum), Whisk ferns (e.g., Psilotum).

Psilotophyta; This division includes whisk ferns, which are very simple plants with no true roots, leaves, or stems. They are found in tropical and subtropical regions. For example;  Psilotum species.

Equisetophyta; This division includes horsetails, also known as scouring rushes. They are found in wet habitats and have jointed stems, which are hollow and filled with silica. For example; Equisetum species

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The cells that make up skeletal muscular tissue are somewhat unique for having:

O cell walls instead of cell membranes.
O especially porous cell membranes.
O no mitochondria.
O cells with multiple nuclei.

Answers

The cells that make up skeletal muscular tissue are somewhat unique for having cell walls instead of cell membranes and is denoted as option A.

What is Cell wall?

This is mostly found in the outer region of the cell membrane and is a rigid, semi-permeable protective layer which consists of lipids, cellulose and polysaccharides needed for its functions.

The cell wall is mostly found in plants but at the same time they are present in some cells of the body such as that of the skeletal muscular tissue due to the rigorous activities being performed by them.

This helps to maintain the structural integrity of the cells and ensures that movement is easily done which is the reason why they are present instead of cell membranes hence option A is correct.

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Do all hardwood trees lose their leaves in winter

Answers

Answer:

I believe the answer is no

The function of the urinary bladder is to:
A serve as a reservoir for urine before it leaves the body.
B expel urine from the body, aided by the urethra.
C help concentrate the urine in periods of dehydration.
D do both A and B.
D) do both A and B.

Answers

The function of the urinary bladder is to, Serve as a reservoir for urine before it leaves the body and expels urine from the body, aided by the urethra. Thus Both A and B.

Urinary Bladder, The lower abdomen is home to this hollow triangle organ. Ligaments that are attached to the pelvic bones and other organs keep it in place. The bladder's walls serve as a reservoir as it unwinds and grows to store urine and expel urine through the urethra.

Urine leakage can be caused by urinary stones, which are hard, stone-like masses that form in the bladder. Disorders of the brain. Urinary incontinence can be brought on by conditions like multiple sclerosis, Parkinson's disease, a stroke, a brain tumor, or a spinal injury that disrupt the nerve signals that control the bladder.

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What are 2 similarities chromosomes you get from parents

Answers

The two similarities between chromosomes that you get from your parents are Genetic Material and Number of Chromosomes.

What more should you know about genetic materials and number of chromosomes you get from parents?

In terms of Number of chromosomes: Every Humans have 23 pairs of chromosomes, for a total of 46 chromosomes. Each parent contributes 23 chromosomes to their child, for a total of 46.

in tems of Genetic material: The chromosomes that you get from your parents contain the same genetic material. This is why you look like your parents and why you have inherited some of their traits.

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The cells of a tomato contain mostly an aqueous solution of sugar and other substances. If a typical tomato freezes at -2.5 C, what is the molality of the sugar in solution? (Hint: sugar is a covalent compound, it does not dissociate in water) Which of the following crops are grown in the Tierra caliente elevation zone What is used to measure weight? 1 .Which of these is an equation?Choose 1 answer:A) 4B) 9 - 5 = 4) 9 - 52. Which of these are true equations?Choose all answers that apply:A) 7 - 2 = 7 + 1B) 8 + 2 = 5 + 5C) 10 = 8 + 2 Which phrase from the text best support the answer to Part A?A"a mandatory punishment of life without parole for a 14-year-old is cruel and unusual punishment because the defendant's age and backgroundcannot mitigate punishment." ( Paragraph 9)B"Fourteen-year-olds, for instance, are not allowed to drink, to marry, to vote, to serve on juries or even to drive." ( Paragraph 14)C"'The one thing that we don't know is what the potential of the life would be that was snuffed out in the crime...'" ( Paragraph 24)D"'It takes them years before they even get what it means to be sentenced to life in prison without parole, because they're just not used to thinking that far ahead.'" ( Paragraph 32) What are some common security threats for our home devices and IoTs? what type of consumer are bears? A patient visited a nurse practitioner because he had diarrhea for 2 weeks. He described his stool as large and greasy. The nurse knows that this description is consistent with a diagnosis of: is the following statement true or false? confusion and abnormal behavior are symptoms that may demonstrate hypoglycemia episodes in an older adult. 44 7 M N Write your answers as whole n mZN MN = LN = Submit Which contribute to a positive population growth? I am looking for someone who highly enjoys hip hop music, to listen to some songs I am working on. 12. What is a benefit of online backup services?Even if your computer is lost or stolen, you will still have your data.The service is always free.The service is always very fast.O The service does not require an Internet connection. What is the principal ? Help my 9 year old sister please A pn junction at T= 300 K has the following properties: n. = 1x10 cm", p= 3x10'7cm, and ni 2.3x10 cm. The bandgap of the material is 343 mev. a) Calculate the minority carrier concentrations on each side, p, and np. Show that you can make the assumptions that Na=n, and N. = Pp. b) Calculate the built-in potential in units of meV, and draw an accurately-scaled band diagram for this structure. Label the conduction and valence band edges, the intrinsic energy, and the Fermi energy. c) Calculate the reverse bias saturation current density for this pn junction. Assume that both electrons and holes in this direct gap material have lifetimes of 5 ns and their mobilities are both 300 cm /Vs. Bryce and two of his friends went to eat at Texas Roadhouse. They split the bill evenly between them. Bryce share was $14.85. Write and solve an equation to find the total,t, of the bill .( please help asap and show all your work please) -14=3x-y2y=-8xfinal answer: how many solutions are there?? HELPPPWrite the equation of the graphed function. Give your answer in standard form. Balance is an important element of photography. Does this mean that every part of the image must have the same amount of objects in it?No, it is one factor to consider.Yes, that is what makes it balanced.Yes, but only when the objects are large.No, objects can be anywhere in the image.