Answers
Explanation:
is there multiple choice?
Related Questions
Study question on my natural selection study!
Answers
Answer:
D.
Explanation:
the first answer A, hunting as a pack ensures that the wolves are not competing for food, is not affect the reproduction of wolves. answer B, grouping together prevents overpopulation is not a positive affect of reproduction. Answer C, living in groups prevent genetic variations from developing in offspring is not a behavior, but a genetic code. Cooperation supports producing more pups that survive to adulthood, positively affects wolves reproduction.
caused by vasoconstriction of the dermal blood vessels
Answers
Answer:
Pallor is caused by vasoconstriction of the dermal blood vessels
Explanation:
Pallor is paleness or wanness usually caused by vasoconstriction of the dermal blood vessels.
In other words. A deficiency in the color of the face.
We transformed E coli cells with a plasmid modified to contain a ‘virulence factor’ which would allow growth on media containing the antibiotic kanamycin (Kan). The plasmid confers constitutive resistance to ampicillin (Amp).
Assume you were given competent cells of known transformation efficiency (TE). Assume TE= 1x10[6] (note 10[6] means 10 to the power of 6). You want to have about 1000 colonies on the P-200 plate. How many nanograms of plasmid should you use in the transformation reaction? Select only one answer.
Answers
We need 1 nanogram of plasmid in the transformation reaction when the transformation efficiency is given for 1000 colonies on plate P - 200.
Given the value of transformation efficiency (TE) = \(1 * 10^6\)
Number of colonies on the plate P-200 = 1000
To calculate the amount of plasmid (in nanograms) required for transformation, we need to first calculate the number of cells required for transformation.
To get desired number of cells we multiply the transformation efficiency and number of colonies given such that:
number of cells = \(TE (1*10^6) * 1000 colonies = 1 * 10^9 cells\)
Since 1 nanogram of plasmid is equivalent to \(1 * 10^9\) cells, we can conclude that we need to use 1 nanogram of plasmid in the transformation reaction.
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Briefly describe each of the sun's layers: • Inner core: • Radiative zone: • Convective zone: • Photosphere: • Chromosphere: • Corona:
ILL MARK BRAINLIEST
Answers
Answer:
this website goes over it well
https://www.nasa.gov/mission_pages/iris/multimedia/layerzoo.html
radiative zone- the solar material is hot and dense enough that thermal radiation transfers the heat of the core outward through the Sun.
convectively zone- the outer-most layer of the interior. It extends from a depth of 200,000 km up to the visible surface of the Sun. Energy is transported by convection in this region. The surface of the convection zone is where light (photons) is created. This top layer is called the photosphere.
photosphere- the top layer of the convection zone, and the lowest layer of the split atmousphere
chromosphere- lowest layer of the Sun’s atmosphere, several thousand kilometres thick, located above the bright photosphere and below the extremely tenuous corona.
corona- outermost region of the Sun’s atmosphere, consisting of plasma (hot ionized gas).
Select the correct answer. Which of these periods contain elements with electrons in s, p, d, and f orbitals? A. periods 1–3 B. periods 1–4 C. periods 3–5 D. periods 6–7
Answers
In the periodic table, the periods represent the horizontal rows. Each period corresponds to a different principal energy level, and the elements within that period have electrons occupying specific orbitals.The correct answer is D. periods 6-7.
In periods 1-3, the elements only have electrons occupying the s and p orbitals. The d orbitals are not filled in these periods. In periods 1-4, the elements still only have electrons occupying the s and p orbitals. The d orbitals are again not filled in these periods.
In periods 3-5, the elements continue to have electrons in the s and p orbitals. However, in period 4, the d orbitals start to fill up, specifically in the transition metals. So, this option is not correct.
In periods 6-7, the elements have electrons in the s, p, d, and f orbitals. The f orbitals are filled in the lanthanide and actinide series, which are found in periods 6 and 7 respectively. Therefore, this option is correct. Thus, the correct answer is D. periods 6-7.
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What does the moon not have on its own?
O rotational period
O gravity
O revolution period
Olight
Answers
The Moon can only be seen as a result of the Sun's light reflecting off it. It does not produce any light of its own.
The moon does not produce any light on its own, and can be seen of reflection from sun light
If subjected to sound frequencies of 25,000 to 100,000 cycles per second, which of the
following would be least affected?
A. a human being
B. a cheetah
C. a porpoise
D. a bat
E. a house cat.
Answers
Answer: D. a bat
Explanation:
A bat just picks up on the sound waves but does actualy hear stuff
D. A bat would be least affected by sound frequencies of 25,000 to 100,000 cycles per second. Bats use ultrasonic frequencies in their echolocation calls to navigate and locate prey, they have specialized ears and auditory systems that allow them to hear and process these high frequency sounds. While other animals like human, cheetah, porpoise and house cat would not be able to hear these ultrasonic frequencies and would not be affected by them.
there are different ___ of genes that code for all the differnt traits organisms can express
Answers
There are different alleles of genes that code for all the different traits organisms can express.
Even though there are 50,000 genes in every cell, only about 10% of them are expressed or switched on in any specific cell type.
Only a small fraction of a cell’s genes are transcribed at any given time. The variation in gene expression profiles among different cell types is due to the presence or absence of different sets of transcription regulatory factors. Some regulatory factors are designed to facilitate transcription, while others are designed to inhibit or inhibit transcription.
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(GIVING BRAINLIEST!!!)
Which variable is described as a factor you can change to observe whether or not it has an effect on the outcome variable?
A) Control
B) Hypothesis
C) Test
D) Question
Answers
Answer:
B
Explanation:
Answer:
B) Hypothesis
Explanation:
Which of the following should be used to make a precise measurement of
liquid volume?
A. Microscope
B. Test tube
C. Thermometer
D. Graduated cylinder
Answers
Answer and Explanation:
D. Graduated Cylinder
You use a Graduated Cylinder. Graduated cylinders have numbers on the side that help you determine the volume. Volume is measured in units called liters or fractions of liters called milliliters (ml).
The Graduated Cylinder used to make a precise measure of liquid volume. Graduated cylinders have digits on the side that help you select the volume. Volume is measured in units called liters or fractions of liters called milliliters (ml).
What tool is used to measure the volume of a solid?A volume of water adequate to cover the things is placed in a graduated cylinder and the volume read.
The entity is added to the cylinder and the volume read again. The contrast between the two volumes is the volume of the object.
Thus,The Graduated Cylinder used to make a precise measure of liquid volume.
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2. During which phase would the cell undergo anaphase? *
A. Phase A
B. Phase B
C Phase C
D. Phase D
Answers
Anaphase occurs during the M phase (mitosis) of the cell cycle and is not represented by any of the provided options (A, B, C, or D).
Anaphase is a critical stage in cell division, specifically in mitosis or meiosis. It occurs after metaphase and before telophase. During anaphase, the sister chromatids, which are replicated chromosomes held together by a centromere, separate and move towards opposite ends of the cell.In the context of the cell cycle, anaphase takes place during mitosis. The cell cycle consists of four phases: G1 (gap 1), S (synthesis), G2 (gap 2), and M (mitosis). Mitosis is the M phase, which further consists of four stages: prophase, metaphase, anaphase, and telophase.Therefore, the correct answer is not provided in the given options. Anaphase occurs during the M phase or mitosis and is not associated with any specific phase (A, B, C, or D) mentioned in the question.
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how does the waves energy change as the wave amplitude changes
Answers
Answer:
The waves energy increases as the wave amplitude changes.
Explanation:
What process involves the change of an allele's frequency in a
population due to the fitness benefit it gives to the individuals
who have it?
Answers
Answer:
The correct answer is - natural selection.
Explanation:
The change of an allele's frequency or microevolution in a particular population due to its fitness benefit it provides to the individuals of the population can be caused by the natural selection process. Relative reproductive success is a measure of Fitness.
The change of an allele's frequency in deleterious traits mostly decreases in a population and this process is known as adaptive evolution. There is no or very small number of relative reproductive success present.
Answer:
Natural selection
Explanation:
PLEASE HELP
Which of these is likely to be true about a scientific theory? (5 points)
a
It can never be changed or replaced.
b
It is supported by exactly one true hypothesis.
c
It is accepted by a large scientific community.
d
It is a random guess about how something happened.
Question 2 (5 points)
(04.02 MC)
Read the two statements given below.
Statement 1: All living matter at the smallest level is made of cells
Statement 2: New animal cells are formed from pre-existing animals
Which of the following best relates the statement to the correct type of theory? (5 points)
a
Both statements are about scientific theories.
b
Both statements are about everyday life theories.
c
Statement 1 is about an everyday life theory, and statement 2 is about a scientific theory.
d
Statement 1 is about a scientific theory, and statement 2 is about an everyday life theory.
Question 3 (5 points)
(04.03 LC)
Which organelle captures sunlight and helps in food synthesis? (5 points)
a
Chloroplast
b
Mitochondrion
c
Nucleus
d
Ribosome
Question 4 (5 points)
(04.01 LC)
Which type of molecule forms structures in cells and stores energy? (5 points)
a
Lipid
b
Nucleic acid
c
Protein
d
Water
Question 5 (5 points)
(04.03 LC)
The diagram below shows the structure of an animal cell.
The image of an animal cell is shown with some organelles labeled numerically from 1 to 6. The outer double layer boundary of the cell is labeled 1. A stacked disc like structure is labeled 2. A broad rod shaped structure with an irregular shape inside it is labeled 3. The entire plain section that forms the background of the cell and is within the outer boundary is labeled 4. A small circular shape within the large circular shape is labeled 5. The large central circular shape is labeled 6.
Which number label represents the nucleus? (5 points)
a
6
b
5
c
3
d
2
Question 6 (5 points)
(04.01 LC)
Which of these is a group of organs that work together and perform one or more major functions? (5 points)
a
Organelle
b
Organ system
c
Molecule
d
Tissue
Question 7 (5 points)
(04.02 LC)
Matthias Schleidan observed plant leaves under a microscope. How did this help contribute to cell theory? (5 points)
a
It helped to show that all plants are made of cells.
b
It helped to show that all plants are made of chloroplast.
c
It helped to show that plant cells can be created from soil.
d
It helped to show that plants cells cannot function independently.
Question 8 (5 points)
(04.02 LC)
Based on the cell theory, which of the following is true? (5 points)
a
All cells perform the same function.
b
All cells are of the same size and shape.
c
Organisms can have only one or many cells.
d
Cells vary in size depending on the size of the organism.
Question 9 (5 points)
(04.01 LC)
Which of the following levels is lower than cells in the hierarchy of organization of living things? (5 points)
a
Molecules
b
Organs
c
Organ systems
d
Tissues
Question 10 (5 points)
(04.03 MC)
What will most likely happen in the absence of a cell membrane? (5 points)
a
Photosynthesis will not take place.
b
The cell will not store food, water, nutrients, and waste.
c
Energy will not be released during cellular respiration.
d
Substances will pass in and out of the cell in an uncontrolled manner.
Question 11 (5 points)
(04.03 MC)
Plant cells and animal cells were observed under a microscope. The characteristics of two cells are listed below.
Cell C: Has a cell membrane
Cell D: Has a large vacuole
Which statement about the two cells is correct? (5 points)
a
Both cells are animal cells.
b
Cell C can be a plant cell or an animal cell.
c
Cell D can be a plant cell or an animal cell.
d
Cell C is a plant cell and Cell D is an animal cell.
Question 12 (5 points)
(04.02 MC)
A scientist observed the formation of hundreds of maggots and many flies on a rotting meat slice exposed to the environment. What most likely formed the maggots? (5 points)
a
Water vapor present in the surrounding air
b
Eggs of flies in the surroundings
c
Nutrient crystals in the meat
d
Oxygen in the environment
Answers
Answer:
Q1. b Q2. a Q3. a Q4. a Q6. b Q7. a Q8. c Q9. a Q10. b Q11. b Q12. b
Please attach the photo of question 5 so that it is easier to answer.
Explanation:
Answer: I need the answer to give please help here is a photo
what is the relation between chromatin ,dna,gene,chromosome?pls answer in simple words
Answers
Answer:
The main difference between chromatin and chromosome is that chromatin consists of the unravelled condensed structure of DNA for the purpose of packaging into the nucleus whereas chromosome consists of the highest condensed structure of the DNA doublehelix for the proper separation of the genetic material between
choose the correct. I will mark you brainliest.
Answers
Answer:
option b i.e. moth oesophagus,stomach,small intestine, large intestine , anus
Explanation:
please follow me.....
Number 6 please helppp
Answers
Height is a monohybrid inheritance. A tall (TT) plant is crossed with a short (tt) plant therefore the fraction or percent of the offspring which will be tall is 1 or 100 percent.
What is Inheritance?This is referred to as the process by which genetic information is passed on from parent to child.
TT × tt when crossed will give the following offspring:
Tt Tt Tt Tt - We were told that height is a monohybrid inheritance which means Tall will be dominant.
Therefore , the fraction or percent of the offspring which will be tall is 1 or 100 percent.
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explain condensation in the formation of triglyceride + water
Answers
Answer:
Triglycerides are formed when condensation reactions occur between one glycerol and three fatty acids. The hydroxyl groups of glycerol combine with the carboxyl groups of the fatty acids to form an ester linkage. This condensation reaction results in the formation of three molecules of water.
Explanation:
When a pollutant is removed from the air by a natural process, it _____.
is gone forever
ends up somewhere else
causes chemical reactions
disrupts natural processes
Answers
Answer:
it's ends up somewhere else
Question 8(Multiple Choice Worth 3 points)
(04.01 MC)
Starting with the European settlers, humans have introduced earthworms from Europe and Asia into North American forests. These introductions continue through the transport of soil that contains non-native earthworms, such as during construction and through the release of non-native earthworms used for fishing. The effects of non-native earthworms are especially large in forests that did not have any native earthworms. For example, forests of the Great Lakes region did not previously have earthworms until humans introduced them. When non-native earthworms are introduced, the thick layer of leaves, known as leaf litter, covering the ground disappears quickly, thereby altering biogeochemical cycles.
What is a possible negative consequence of introducing the non-native earthworms to forests in the Great Lake regions?
PLease hurry
The earthworms reduce the resources available to other animals that eat dead plant matter.
The earthworm decreases the energy flow from one tropic level to the next.
The earthworms provide an additional food source for primary consumers.
The earthworms burrow, which reduces the nutrients, flow of air, and water underground.
Answers
Answer:
The earthworms reduce the resources available to other animals that eat dead plant matter.
Explanation:
The introduction of non-native earthworms in the Great Lakes region can have negative consequences on the ecosystem, including reducing the leaf litter and other organic matter in the soil, which is a main food resource for many species of animals and invertebrates, causing a decline in the population of those species. I apologize for any confusion my previous response may have caused.
PLEASE HELP ASAP I don’t know how to do this
This is the link for the chart:
fire.ca.gov/stats-events/
Answers
Over time, California wildfires have become more frequent, intense, and destructive due to a combination of factors such as climate change, drought, and increased human activity in fire-prone areas.
The state has experienced some of its largest and deadliest wildfires in recent years, including the 2017 Wine Country fires, the 2018 Camp Fire, and the 2020 August Complex Fire. These fires have not only caused significant property damage and economic losses but also resulted in loss of life and long-term health effects for residents.
The trend of more frequent and intense wildfires is likely to continue unless effective measures are taken to address the underlying causes and prevent their occurrence.
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when an immunoreactive cell is present, a(n)______ secretes perforins, which bore a hole in the target's cell membrane.
Answers
When an immunoreactive cell is present, a(n) cytotoxic T-lymphocyte secretes perforins, which bore a hole in the target's cell membrane.
A cytotoxic T cell is responsible for secreting perforins, which are proteins that bore a hole in the target cell membrane. These perforins are released by the cytotoxic T cell when it recognizes an immunoreactive cell, such as a virus-infected cell or a cancerous cell. Once the perforins puncture the target cell membrane, they create a pore through which other proteins, such as granzymes, can be released. The granzymes then enter the target cell and activate a cascade of events that ultimately leads to apoptosis, or cell death. By destroying the immunoreactive cells, the cytotoxic T cell helps protect the body from infection or disease.
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Raccoons feed on dead animals. Thus, they are decomposer animals known as?
Answers
Answer:
SCAVANGER
Explanation:
Answer:
Raccoons are scavengers
A raccoon is not a decomposer but is an omnivore and scavenger. Raccoons will eat just about anything, including a wide variety of plants
How does adenosine triphosphate (ATP) become adenosine diphosphate (ADP)?
ATP stores energy as a phosphate bond is formed.
ATP releases energy as a phosphate bond is formed.
ATP releases energy as a phosphate bond is broken.
ATP stores energy as a phosphate bond is broken.
Answers
The correct answer is ATP releases energy as a phosphate bond is broken.
ATP (adenosine triphosphate) is converted into ADP (adenosine diphosphate) when a phosphate group is removed from ATP, resulting in the release of energy. This process is known as hydrolysis, where water molecules are used to break the bond between the terminal phosphate group and the rest of the molecule.
During cellular metabolism, ATP serves as the primary energy currency of the cell. When energy is required for various cellular processes, the phosphate bond in ATP is broken by an enzyme called ATPase. This enzymatic hydrolysis reaction cleaves off one of the phosphate groups, resulting in the formation of ADP and an inorganic phosphate molecule (Pi). The released phosphate group is then available to be used in other cellular reactions.
The conversion of ATP to ADP is an essential part of energy metabolism in cells. The energy released during this process is utilized to drive various cellular activities, such as muscle contraction, active transport of molecules across cell membranes, and synthesis of macromolecules. Once ATP is converted to ADP, it can be further hydrolyzed to AMP (adenosine monophosphate) if more energy is needed. Ultimately, the energy stored in ATP is released when the phosphate bond is broken, allowing cells to perform their vital functions.
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The table below gives pKa data for selected amino acids. Which of the amino acids listed will exist predominantly as a molecule with both positive and negative charges at pH of 8.0?
I. Arginine
II. Tyrosine
III. Glutamic acid
IV. Glycine
A. IV only
B. I and III only
C. II and IV only
Answers
All the given amino acids listed below will predominantly as a molecule with both positive and negative charges at pH of 8.0
At a pH of 8, all the molecules as unfastened amino acids could have at the least one advantageous and one poor price, because the carboxylic acid could have a -1 price and the amino terminus could have a +1 price. According to the given table, arginine and glutamic acid may even have charged facet chains. Free amino acids include at the very least companies which could come to be charged. The first is the carboxylic acid terminal, which exists as neutral -COOH whilst protonated and negatively-charged -COO− whilst deprotonated. The 2d is the amino terminal, which turns into the positively-charged -NH3+ whilst protonated and the neutral -NH2 whilst deprotonated. Note that "protonated" isn't constantly synonymous with "advantageous." A protonated role may be both advantageous or neutral, relying at the institution in question. Similarly, a deprotonated role may be both poor or neutral. Low pH --> Protonation (COOH) and High pH --> deprotonation (COO-)
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You are so Brainly right now.
Answers
Answer:
Sorry, not funny.
Answer:
don't get it
Explanation:
have a nice day!!! :)
Brainiest is appreciated
A student filled two Petri dishes with a clear cornstarch gel, then marked the letter
Answers
Before nitrogen gas can be used by living organisms it must be converted into ammonium. This important step of the nitrogen cycle is known as
1. ammonification
2. denitrification
3. ozonation
4. nitrification
Answers
Answer:
dont understand, so sorry!! once again, so sorry!!!!
in chemical reactions, bonds blank in reactants.
Answers
Te enzyme trypsin aids in protein digestion in the small intestine. Te relative
activity of trypsin at diferent pH values is shown in Figure 1.
Which of the following statements best explains the activity levels of trypsin shown
in Figure 1?
(A) The small intestine releases inhibitor molecules that block the activity of
trypsin unless it is at its optimum pH.
(B) The number of efective collisions between trypsin and its substrate increase
at higher pH values.
(C) As pH values increase, the substrate concentration decreases, leading to an
eventual decline in the rate of the trypsin-catalyzed reaction.
(D) At extremely low pH values, trypsin is denatured and cannot function
efciently
Answers
The statement that best explains the activity levels of trypsin in Figure 1 is (D) At extremely low pH values, trypsin is denatured and cannot function
efficiently.
Figure 1 shows the activity levels of trypsin, a protease enzyme of small intestine, as a function of pH.
The data indicates that trypsin is most active in moderate pH ranges, between 6 and 8, where it exhibits its highest activity levels. However, as the pH values become more acidic or basic, the activity of trypsin decreases significantly.
At extremely low pH values, trypsin is denatured and cannot function efficiently. This is evidenced by the sharp drop in activity at pH levels below 4.
Therefore, the statement that best explains the activity levels of trypsin in Figure 1 is (D).
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