The ovule is fertilized with pollen to produce seeds in most plants. When pollen reaches the ovule, fertilization occurs, resulting in the formation of seeds.
The ovule, located within the ovary of a flower, is the female reproductive structure that is fertilized by pollen. Pollen, which contains the plant's sperm cells, is the male reproductive structure. When pollen reaches the ovule, fertilization occurs, resulting in the formation of seeds. This process, known as pollination, can happen through various means, including wind, insects, birds, or other pollinators. Once fertilization takes place, the ovule develops into a seed, which contains the embryo and is surrounded by a protective seed coat. The seeds, when dispersed and provided with suitable conditions, can germinate and give rise to new plants. The process of seed production is crucial for the reproduction and survival of many plant species.
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where do traits come from
A . They are only inheirted
B . They are only learned
C. They are inheirted or learned
quick answer please
Answer:
C, They are inherited or learned.
I hope this helped at all.Explain how industrial emissions of sulfur dioxide, sulfates, and nitrogen oxides affect forests and croplands far away.
Answer:
Acid rain is formed high up in the atmosphere when SO2 and NO2 combine with water and sunlight. When this reaction forms acid it falls to the ground in the form of acid rain or snow or an industrial processes such as extracting metal from ore
Explanation:
What do lacteals, located in the small intestine, collect?
A) carbohydrates
B) fat
C) blood
D) intracellular fluid
Lacteals, located in the small intestine, primarily collect fat from the digested food. Lacteals in the small intestine play a crucial role in collecting and transporting dietary fat from the digested food, ensuring its proper absorption and distribution throughout the body.
Lacteals are specialized lymphatic vessels found in the small intestine, specifically in the lining of the villi. Their primary function is to absorb dietary fat, particularly long-chain fatty acids, and fat-soluble vitamins. During the process of digestion, fats are broken down into smaller molecules called fatty acids and glycerol. These products are then absorbed by the cells lining the small intestine and transported into the lacteals.
Unlike other nutrients such as carbohydrates and proteins, which are absorbed directly into the bloodstream, the absorption of dietary fat occurs through the lymphatic system. The lacteals transport the absorbed fat, along with other components such as fat-soluble vitamins, to the lymphatic vessels. From there, the fat enters the general circulation via the thoracic duct, eventually reaching the bloodstream.
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charles darwin believed to his death in a divine creator, he also believed that the creator had used natural laws to bring all living things into being __________ over long periods of time.
"All the organic beings which have ever lived on this Earth may be descended from some primordial form," said Darwin in The Origin of Species.
Charles Darwin popularized the notion that creatures with higher environmental adaptation would typically live, procreate, and multiply more frequently. A brief caricature of Darwin's theory's main ideas was presumably required since the consequences of his hypothesis, which was most prominently advanced in 1859's The Origin of Species, were so extensive. Darwin's theory that we descended from monkeys was possibly a comprehensible shorthand. It at least captures the idea of species evolution and the fact that humans descended from non-human predecessors.
Hence, pointed out biological laws but lacked supporting evidences.
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Infants are born with a number of instinctive reflexes.
True
False
Answer:
True
Explanation:
:D
Which refers to the ability of a host organism to recognize and defend itself against the onslaught of pathogenic microorganisms?
The term "immunity" describes an organism's capacity to identify and protect itself from the onslaught of harmful microbes.
What is Immunity?In biology, the ability of an organism to ward against harmful germs is referred to as immunity. Both specialized and broad factors can affect immunity. The nonspecific components act as barriers against or remove a range of diseases regardless of their antigenic makeup. Other immune system elements can develop pathogen-specific immunity and adapt to every new disease they encounter. Immunity is a sophisticated biological process that can distinguish between substances that are foreign to the body and those that are inherent to it and can tolerate both (non-self). The immune system is made up of both innate and adaptive components. Innate immunity is present in all metazoans; however, adaptive immunity is only present in vertebrates.
The prehistoric perspective was that illness was a type of theurgic retribution for "bad deeds" or "evil thoughts" imposed upon the soul by the gods or by one's adversaries, and that disease was brought on by supernatural powers.
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The diagrams show what happens to the shape of a plant cell place in distilled water. Explain why the cell swells and becomes turgid. Name the process involved.
Answer:
the name of the process should be osmosis
Explanation: Reason being that plant cells are hypertonic because they have a cell sap so when they are pout in distilled water which is a hypotonic solution, it then absorbs water by osmosis and swells up and become turgid. But they do not burst because they have a cell wall that develops a wall pressure that balances the turgor pressure exerted by turgid cells
Which of the following statements about homologous chromosomes is true? a. They are genetically identical. b. In a cell with four pairs of homologous chromosomes - two pairs from each parent c. Homologous chromosomes can be found in both haploid and diploid mother cells d. They contain all of the same genes but not necessarily the same alleles
e. Homologous chromosomes pair up and undergo recombination during prophase of mitosis
The homologous chromosome are genetically identical to each other option A is correct.
Generally, in somatic cells chromosomes are in pairs. If the pair consists of similar chromosomes by shape and organization, they are called 'homologous chromosomes' and if they are not similar they are called 'heterologous chromosomes'.
A structure found inside the nucleus of a cell. A chromosome is made up of proteins and DNA organized into genes. Each cell normally contains 23 pairs of chromosomes.
In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
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____ is result of a mating where the offspring shows qualities superior to those of both parents
Cross breeding is result of a mating where the offspring shows qualities superior to those of both parents.
A intercross is an organism with thoroughbred parents of two different types, kinds, or populations. Crossbreeding, occasionally called" developer crossbreeding", is the process of breeding such an organism, While crossbreeding is used to maintain health and viability of organisms, reckless crossbreeding can also produce organisms of inferior quality or adulterate a thoroughbred gene pool to the point of extermination of a given strain of organism.
A domestic beast of unknown strain, where the strain status of only one parent or grandparent is known, may also be called a intercross though the term" mixed strain" is technically more accurate. Outcrossing is a type of crossbreeding used within a thoroughbred strain to increase the inheritable diversity within the strain, particularly when there's a need to avoid inbreeding.
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How do the flowing layers of the Earth interact?
They interact by the core transferring energy by conduction to the upper mantle
assisting in the softening of the rock layer which leads to convection.
They interact by the core transferring energy by convection to the upper mantle
assisting in the softening of the rock layer which leads to conduction.
They interact by the core transferring energy by precipitation to the upper mantle
assisting in the softening of the rock layer which leads to evaporation.
They interact by the upper mantle transferring energy by conduction to the core
assisting in the softening of the rock layer which leads to radiation.
Answer:
They interact by the upper mantle transferring energy by conduction to the core assisting in the softening of the rock layer which leads to radiation.
Explanation:
Convection currents coming from the core and mantel are believed to the main cause of the interaction. As these currents travel up and down the curst and mantle boundary and this creates the plates to move freely forming a conveyor belt. The core of the earth creates this convective current to rise up due to the heat and pressure. The hot molten rocks in the mantle eventually cool and the cycle of rising and sinking takes place.Suppose that a mutation in a coat color gene of a mouse alters an enzyme such that it produces a red pigment instead of the wild type, which is tan. This is a _____ mutation, which is most likely _______.
Answer:
The correct answer is - gain of function, and dominant.
Explanation:
A mutation in which the gene that altered carries out the production of the product that has a new pattern of gene expression or a new molecular function.
Function mutations are always gain by almost always Dominant or in some rare cases semi-dominant so, the mutation in a coat color gene of a mouse alters an enzyme such that it produces a red pigment instead of the wild type, which is tan. This is a gain of function mutation, which is most likely dominant.
The correct answer is - gain of function, and dominant.
Give three examples of the characteristics that make a good therapist.
Answer:
a good listener, has good social skills, and willing to help
Explanation:
Which element is found in period 3, group 2? *
Answer:
Magnesium
Explanation:
Magnesium
Answer:
sodium, magnesium, aluminium, silicon, phosphorus, sulfur, chlorine, and argon.
Explanation:
The third period contains eight elements: sodium, magnesium, aluminium, silicon, phosphorus, sulfur, chlorine, and argon. The first two, sodium and magnesium, are members of the s-block of the periodic table, while the others are members of the p-block.
Which one of the following organisms has a cell wall?
a. fungi
b. mycoplasmas
c. protoplasts
d. animal cells
A cell wall is a structural layer found just outside the cell membrane that surrounds some types of cells.
Fungi have cell wall , which is made up of chitin.
What are the functions of cell wall?A cell wall is a structural layer found just outside the cell membrane that surrounds some types of cells. It can be tough, flexible, and rigid at times. It provides structural support and protection to the cell, as well as acting as a filtering mechanism.
The main functions are cell wall is to provide structural strength and support, and also provide a semi permeable surface for molecules to pass in and out of the cell. It maintains the shape of the cell, protect it from burst out, provide protection against pathogens and regulates intercellular transport .
Protoplast is a living protoplasm of a living plant or bacterial cell wall has been removed, mycoplasma is Bacteria who lacks cell wall, animal cells also lack cell wall only Fungi have cell wall which made up of chitin.
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Does anybody know which biome the climatogram shows in the picture?
a cyclops that is homozygous dominant for the barbed gene and is resistant to pesticides is crossed with one that is resistant but not barbed. What proportion of the off spring will be barbed and resistant.
All of the offspring (100%) will be barbed and pesticide-resistant. Most often, bacterial defense mechanisms play a role in the development of pesticide resistance.
An experiment in genetics known as a "dihybrid cross" tracks the phenotypes of two genes by mating individuals who have multiple alleles at those gene loci. In most sexually reproducing organisms, each gene is present in two copies, allowing for the presence of two distinct alleles.
Monohybrid crosses are crosses in which there is just one pair of opposing characters. Dihybrid crosses are crosses in which there are only two pairs of opposing characteristics. For figuring out which genes are dominant, employ a monohybrid cross.
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100% of the progeny will be barbed and resistant to pesticides. Most frequently, the development of pesticide resistance is influenced by bacterial defence mechanisms.
A genetic experiment called a "dihybrid cross" studies the effects of two genes by mating individuals with different alleles at the same gene locus. Each gene is often found in two copies in sexually reproducing organisms, allowing for the existence of two different alleles.
Monohybrid crosses are crosses with only one set of antagonistic traits. Crosses with just two opposing pairings of traits are known as dihybrid crosses. Use a monohybrid cross to identify the dominant genes in a population.
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The intensity of sunlight on Earth is affected by
A.) the mass of Earth
B.) the speed of Earth
C.) the number of rotations of Earth
D.) the curved surface of Earth
Answer:
The correct answer is D.) the curved surface of Earth.
Explanation:
The intensity of sunlight on Earth is affected by the curved surface of Earth, which causes the sunlight to spread out over a larger area. As a result, the intensity of sunlight is less at any given point on Earth's surface than it would be if Earth had a flat surface. This also explains why the poles receive less sunlight than the equator, as sunlight is spread out over a larger area near the poles due to the curvature of the Earth.
Factors such as the mass of Earth, the speed of Earth, and the number of rotations of Earth do not directly affect the intensity of sunlight on Earth.
Cancer cells are different because they don't enter the G - 0 phase and they are likely to do which of the following Your answer: a)fail to complete the S phase b) mutate during G1 phase c) repeat the cell cycle continuously d) die after completing mitosis
Answer:
c) repeat the cell cycle continuously
Explanation:
Cell division is a normal phenomenon for all cells as this is the way the cell reproduces and gets repaired in living organisms. However, some cells, due to mutation, keeps dividing and proliferating to form tumours. These cells are called CANCER cells. A normal cell undergoes cellular repair at certain checkpoints of the cell cycle. The checkpoints are necessary to determine a faulty cell and stop its division.
However, cancerous cells do not undergo any repair, which is why they do not enter the G0 phase as mentioned in the question. They keep on dividing out of control without death by repeating the cell cycle continuously.
The variable h represents the number of hours spent doing yard work and the variable d represents the amount of money earned how many hours spent doing yard work and the variable d represents the amount of money earned how many hours in all will it take Whitney to earn 15$
Answer:
\(4\frac{1}{11}\) hours
Explanation:
Given
See attachment for graph
First, we determine the equation of the graph.
Pick any two points from the graph
\((h_1,d_1) =(18,168)\)
\((h_2,d_2) =(36,366)\)
Calculate the slope (m)
\(m = \frac{d_2 - d_1}{h_2 -h_1}\)
This gives:
\(m = \frac{366 - 168}{36 -18}\)
\(m = \frac{198}{18}\)
\(m = 11\)
The equation is then calculated as:
\(d = m(h - h_1) + d_1\)
This gives:
\(d = 11(h - 18) + 168\)
Open bracket
\(d = 11h - 198 + 168\)
\(d = 11h-30\)
So, the number of hours to earn $15 is:
\(d = 11h-30\)
\(15 = 11h -30\)
Collect like terms
\(11h = 15 + 30\)
\(11h = 45\)
Solve for h
\(h = \frac{45}{11}\)
\(h = 4\frac{1}{11}\)
what is animal and what types of animals are there
Answer:
answer a animal is a living thing
Explanation: All animals belong to a biological kingdom called Kingdom Animalia. This kingdom is then broken down into over 30 groups, or phyla. About 75% of all species on Earth are animals. Animals are then broken down into two types: Vertebrates & Invertebrates.
I hope this helps!
Some students were building a model of a
digestive system. Which choice best
describes a process they should show with
their model?
F Tissues digest food for the organ
system to absorb.
GCells digest food, which is then
absorbed by organs.
Organs digest food by working
together as a system.
(H)
The organ system uses specialized
cells to digest food.
The digestive process is divided into four steps: ingestion, chemical and mechanical food breakdown, nutrient absorption, and expulsion of indigestible food.
What does the digestive process entail?
The digestive process starts as soon as something is chewed. In order for food to pass more easily through your esophagus and into your stomach, saliva, a digestive juice produced by your salivary glands, moistens the food. The carbs in food also begin to be broken down by an enzyme found in saliva.
Motility, digestion, absorption, and secretion are the four fundamental functions of the digestive system. Our digestive system transforms our food into energy that we can use.
The digestive system's initial function is to take in food through the mouth. The "ingesting" procedure must take place before anything else can happen.
The complete question is:
Some students were building a model of a digestive system. Which choice best describes a process they should show with their model?
a) F Tissues digest food for the organ system to absorb.
b) G Cells digest food, which is then absorbed by organs.
c) Organs digest food by working together as a system.
d) The organ system uses specialized cells to digest food.
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drag the labels onto the flowchart to place them in the correct sequence. resethelp some insects have a gene that makes them resistant to the pesticide. these insects survive. insects without the gene die. the surviving insects reproduce. the frequency of resistant insects in the population increases. pesticide is applied to a population of insects.
Insects that have a gene that makes them resistant to a pesticide have a survival advantage when the pesticide is applied.
These resistant insects survive while the non-resistant ones die. The surviving insects reproduce, passing on their resistant gene to their offspring. As a result, the frequency of resistant insects in the population increases over time. This process is known as natural selection, and it is a driving force behind the evolution of species.
However, it is important to note that this process may be disrupted by changes in the environment or the introduction of new pesticides, which can reset the cycle and affect the frequency of resistant insects in the population.
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explain all the fundamentals of sex
What would happen to a hurricane if more warm
water evaporates??
Answer:
reduces the warm core structure of the hurricane.
Explanation:
Since evaporation is a cooling process, it reduces the warm core structure of the hurricane and limits vertical development of convection.
What is diffusion on
Answer:
diffusion is process resulting from random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration.
Explanation:
A familiar example is the perfume of a flower that quickly permeates the still air of a room. ion diffusion across a semipermeable membrane.
Anna wants to install a new energy system for her farm. She made a list of all the criteria she has for her new energy system.
Renewable source
Not too loud
No harmful emissions or waste
Does not need water access
Which type of energy system would best suit Anna's needs?
a
gas furnace
b
solar panels
c
wind turbines
d
hydroelectric dam
(b). Solar panels would be the best energy system options for Anna's farm based on her criteria.
Anna's list of criteria for her new energy system includes renewable source, not too loud, no harmful emissions or waste, and does not need water access.
Based on these requirements, gas furnace and hydroelectric dam are not suitable options.
Solar panels or wind turbines are the best options for Anna's farm as they are renewable sources of energy, do not produce harmful emissions or waste, and do not require water access.
Additionally, they are relatively quiet compared to other energy systems.
Ultimately, the choice between solar panels or wind turbines will depend on factors such as location, available space, and energy needs.
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Why is it impossible for exponential growth to continue forever?
o
a. mutations happen randomly in organisms.
o
b. most ecosystems have unlimited water supplies.
o
c. a population has no genetic diversity.
o
d. organisms start to compete for resources.
If the population of a particular creature begins to increase exponentially, it will eventually reach a point when there are too many organisms and there is not enough food to go around. At this point, the organisms begin to compete with one another for food.
The right response is D. organisms begin to compete with one another for resources.
When a population grows at a constant rate per unit of time, such as by doubling every year, this is known as exponential growth. Due to the finite nature of resources like food, water, and space, this form of growth cannot last permanently. When the population increases, people inside it begin to struggle for these scarce resources, putting pressure on it and possibly causing a drop in growth rate, population size, or both.
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urgent help would be appreciated
Which joint moves only by a uniaxial movement around its own axis? A-Interphalangeal B-Radioulnar C-Thumb D-Knuckle. E.Radioulnar.
The radioulnar joint is the only joint that moves by a uniaxial movement around its own axis. This joint connects the radius and ulna bones in the forearm and allows for rotation of the forearm, allowing for pronation and supination.
What is radioulnar joint?The radioulnar joint is the joint between the radius and ulna bones in the forearm. It allows for movements such as pronation and supination. Pronation is the movement of the forearm and hand from the palm facing up to facing down, and supination is the opposite movement. This joint is composed of the radial notch of the ulna and the head of the radius. It is a synovial joint, meaning it is surrounded by a joint capsule that contains synovial fluid. This fluid helps to lubricate the joint and reduce friction during movement. The joint is stabilized by the annular ligament, which encircles the head of the radius. The radioulnar joint is important for fine motor control of the hand, and injury to this joint can cause pain, instability, reduced range of motion, and difficulty with gripping and manipulating objects.
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The respiratory system is divided into...
A. the right and left respiratory systems
B. the upper and lower respiratory systems
C. the major and minor respiratory systems
D. the relevant and irrelevant respiratory systems