Answer:
gene flow
Explanation:
type of gene flow
Where in the flower are pollen grains produced?
A. Sepals
B. Ovaries
C. Ovules
D. Stigmas
E. Anthers
Answer:
E. Anther
Explanation:
The main function of the anther of a flower is to produce the pollen of flowering plants. The pollen contained within the anther provides the sperm necessary for reproduction.
explain the effects of the production of large amounts of antidiuretic hormone in the human body
Answer:
Antiuretic hormone is a hormone that performs functions related to the reabsorption of water molecules through of the kidneys and with the decrease in the amount of urine accumulated in the body. An excess of antiuretic hormone conditions a retention of water and the elimination of sodium in the urine
Explanation:
Antidiuretic hormone (ADH) participates in regulating the water balance in the body, controlling the amount of water reabsorbed by the kidneys after they have filtered waste from the blood. Excess ADH leads to increased water reabsorption in the collecting duct, with increased urinary osmolarity. If there is too much ADH, water is retained, blood volume increases and affect can lead to nausea, headaches, disorientation, lethargy and hyponatraemia (decreased sodium concentration in the blood).
If the statement is true, write true. If it is false,
change the underlined word or words to make
the statement true.
6. Cells were discovered using electron
microscopes.
7. Ribosomes produce proteins.
8. The cells of plants and animals lack nuclei.
9. Both DNA and RNA are proteins.
10. The cell membrane is selectively permeable.
ter of
Answer:
6.True
7.True
8.True
9. False, both RNA and DNA are nuclei acids. that are made from nucleotides
10. True
Explanation:
Answer:
6. False- light microspcopes
7. True
8. True
9. False- Nucleic Acids
10. True
The integumentary and muscular systems work together interactively for which
main purpose?
a) When a cat feels threatened the muscles under their skin contract to extend
the hairs on their backs and tails.
b)When a baboon is ready to mate it secretes a hormone which turns their
backside red.
c) When a giraffe fights over territory they swing their muscular necks and strike
each other with their bony ossicones.
d)Goldfish and other fish species are covered in scales to protect them from
pathogens and disease.
Answer: When a cat feels threatened the muscles under their skin contract to extend
the hairs on their backs and tails.
Explanation:
help!
look at photo to answer
Which of the following best describes a relationship in this grassland?
A Badgers are top predators because they eat upland sandpipers and beetles.
B A producer-consumer relationship exists between lupines and ants.
C a predator-prey relationship exists between beetles and ground squirrels.
D upland sandpipers are primary and secondary consumers because they eat grasses and grasshoppers.
Answer:
D.
Explanation:
They consume both things that consume food and things that produce food.
How could humans use less nonrenewable resources?
Answer:
they could use other forms of energy, such as solar or wind.
Explanation:
write two examples of consumers tell whether they are herbivores omnivores carnivors or scavengers
Answers
Lion,Tiger -Carnivores
vulture- scavenger
Cow,sheep -Herbivores
Man, Pig -Omnivores
In an ecosystem, consumers are organisms that obtain their energy and nutrients by feeding on other organisms. They are a vital part of the food chain, and they come in different sizes and types.
Consumers can be classified into several categories based on what they eat. For example:
Herbivores: These are animals that consume only plants for their food. Examples include rabbits, cows, and giraffes.Carnivores: These are animals that consume other animals for their food. Examples include lions, tigers, and sharks.Omnivores: These are animals that eat both plants and animals. Examples include humans, bears, and raccoons.Scavengers: These are animals that feed on the remains of dead organisms. Examples include vultures, hyenas, and some types of beetles.Consumers play an important role in an ecosystem, as they help to transfer energy and nutrients from one level of the food chain to another. They are an integral part of maintaining the balance and stability of an ecosystem.
Learn more abut consumers, here:
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In the summer, coastal towns usually experience cool ocean breezes, as shown in the
Which process creates the type of ocean breeze shown?
Describe how radio telescopes are used to explore space.
Answer:
A radio telescope is a form of radio receiver used in astronomy. In contrast to an "ordinary" telescope, which receives visible light, a radio telescope sees radio waves emitted by radio sources, typically by means of a large parabolic (or a "dish") antenna, or arrays of them.
Explanation:
Compare the two Food Web. Which ecosystem would be more likely to survive if a disease killed the grass?
a The forest ecosystem, because the animals would be able to eat other organisms.
b The grassland ecosystem, because it has many herbivores.
c he grass ecosystem, because several predators compete for food
d The forest ecosystem, because it has 3 top predators
Answer:
A
Explanation:
just A, I remember doing this in like 4th or 3rd grade don't really remember but I makes sense
PLEASE HELP
Which of the following is not a random occurrence?
A selection of the best-suited traits for the environment, leading to adaptive evolution
Genetic drift changing the gene pool of a population and creating fluctuations in the allele frequencies
The bottleneck effect after an earthquake, resulting in a reduction of genetic variation
The founder effect, when a small population is isolated and the gene pool significantly reduced from the parent population
Answer: A selection of the best-suited traits for the environment, leading to adaptive evolution brainliest
Explanation:
which of the following scientists can be identified as a taxonomist?
Answer: Taxonomy is the science of naming, describing and classifying organisms and includes all plants, animals and microorganisms of the world. Using morphological, behavioral, genetic and biochemical observations, taxonomists identify, describe and arrange species into classifications, including those that are new to science.
Is the following sentence true or false? Topographic maps would be useful for
planning a new highway, Explain you answer
Help please I'll give brainless
Apply Concepts Eventually, most people with Alzheimer's disease lose the ability to recognize common objects. Explain which lobe is affected at this point in the disease
Answer:
The right temporal lobe
Explanation:
The cerebral cortex of the brain has two sections known as hemispheres, and each hemisphere can be divided into four lobes: frontal, parietal, temporal and occipital. Alzheimer's disease is the most common cause of dementia, which is characterized by the damage of the temporal lobe. Alzheimer’s disease usually initiates in the hippocampus, which is a structure inside each temporal lobe. The temporal lobes are involved in different neuronal functions: object recognition, face recognition, perception, memory, language, emotions, etc. The right temporal lobe is mainly involved in processing visual information (i.e., face recognition, object recognition, familiar recognition).
1, Which of the following is not an organelle within a cell ?
A, nucleus B,chloro plast C ,mitochondria D, Cytoplasm
Answer:
B.chloroplast
Explanation:
chloroplast is gained from the sun through the cytoplasm organelle
Which change occurs in a fetus during the first trimester?
A. Rapid weight gain occurs.
B. Fingers and toes become well defined.
C. Eyes and ears become fully developed.
D. Central nervous system completes development.
Answer:
D. Central nervous system completes development
Explanation:
DON'T GIVE ME A LINK! ANSWER THE QUESTION!
A student wants to use cookies to make a model of the genetic makeup of the offspring of asexual reproduction. He has vanilla cookies and chocolate cookies available. How can he make his model?
A.
Put chocolate cookies in a row with arrows between them showing the progression from parent to offspring.
B.
Use one chocolate cookie parent with arrows showing that it produces vanilla cookies and chocolate cookies as offspring.
C.
Use chocolate cookies and vanilla cookies as the parents, and vanilla cookies and chocolate cookies as the offspring.
D.
Use chocolate cookies and vanilla cookies as parents, and combine half a vanilla cookie and half a chocolate cookie for the offspring.
(sorry if this sounds a little aggressive but I'm tired of people giving links to files that are dangerous for children, especially a site made up for children who knows how old. I don't want anything to happen to them that can traumatize them for the rest of their lives)
Answer: its D i hope
Explanation:
Rocks are made of collections of mineral grains that are held together in a firm, solid mass. Rocks are identified primarily by the minerals they contain, their color, and their texture.
Based on this passage, you can infer...
A. Rocks are classified into three major groups
B. Rocks form from the cooling and hardening of molten rock
C. A rock's origin is the way it was formed
D. Each type of rock has a distinctive set of minerals
OMG PLSSS HELP ME PLS PLS PLS!!!!!!!
Answer:
Explanation: it’s a
If sperm contains both x and y chromosomes then who decides the gender. Whether egg chooses which sperm( a sperm carrying x or y chromosomes) has to be fertilized.
Answer:
Egg cells all contain an X chromosome, while sperm cells contain an X or Y chromosome.
Explanation:
This arrangement means that it is the male that determines the sex of the offspring when fertilizationocc
PLEASE HELP ASFFF
What were the results of the experiment and how did the results prove the semiconservative model of DNA replication? Explain.
Answer:
it can be shows in DNA Test
Please help what's the answer
10
What complementary mRNA is made from the following DNA strand AAG-CTG-CCT *
(1 Point)
TTC-GẠC-GGA
UUC-GAC-GGA
TUC-GAC-GGA
UUC-GUC-GGA
No Answer
Answer:
a
Explanation:
Four waves have different wavelengths and frequencies. Which statement is true
A- the wave with the greatest frequency will be the most powerful wave
B- all waves have to mechanical
C- the wave with the lowest frequency will be the most powerful wave
D- none of the above
Answer:B
Explanation:
Answer:
B- All waves have to mechanical
Explanation:
hope this helps! <3
Will give brainliest
Answer:
D
Explanation:
70 plus 30 = 100%
Please help meeeeeeeeeweewwwwweeeeee
Answer:
the answers are D, E and G
Explanation:
Which is used to make cell walls
Answer:

Figure 3 : Plant plasma membrane and cell-wall structure
A plant cell wall is arranged in layers and contains cellulose microfibrils, hemicellulose, pectin, lignin, and soluble protein. These components are organized into three major layers: the primary cell wall, the middle lamella, and the secondary cell wall (not pictured). The cell wall surrounds the plasma membrane and provides the cell tensile strength and protection.
© 2008 Nature Publishing Group Sticklen, M. B. Plant genetic engineering for biofuel production: towards affordable cellulosic ethanol. Nature Reviews Genetics 9, 433-443 (2008). All rights reserved. 
Figure Detail
Besides the presence of chloroplasts, another major difference between plant and animal cells is the presence of a cell wall. The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress. It also allows cells to develop turgor pressure, which is the pressure of the cell contents against the cell wall. Plant cells have high concentrations of molecules dissolved in their cytoplasm, which causes water to come into the cell under normal conditions and makes the cell's central vacuole swell and press against the cell wall. With a healthy supply of water, turgor pressure keeps a plant from wilting. In drought, a plant may wilt, but its cell walls help maintain the structural integrity of its stems, leaves, and other structures, despite a shrinking, less turgid vacuole.
Plant cell walls are primarily made of cellulose, which is the most abundant macromolecule on Earth. Cellulose fibers are long, linear polymers of hundreds of glucose molecules. These fibers aggregate into bundles of about 40, which are called microfibrils. Microfibrils are embedded in a hydrated network of other polysaccharides. The cell wall is assembled in place. Precursor components are synthesized inside the cell and then assembled by enzymes associated with the cell membrane (Figure 3).
What Are Vacuoles?
Plant cells additionally possess large, fluid-filled vesicles called vacuoles within their cytoplasm. Vacuoles typically compose about 30 percent of a cell's volume, but they can fill as much as 90 percent of the intracellular space. Plant cells use vacuoles to adjust their size and turgor pressure. Vacuoles usually account for changes in cell size when the cytoplasmic volume stays constant.
Some vacuoles have specialized functions, and plant cells can have more than one type of vacuole. Vacuoles are related to lysosomes and share some functions with these structures; for instance, both contain degradative enzymes for breaking down macromolecules. Vacuoles can also serve as storage compartments for nutrients and metabolites. For instance, proteins are stored in the vacuoles of seeds, and rubber and opium are metabolites that are stored in plant vacuoles.
Conclusion
Plant cells have certain distinguishing features, including chloroplasts, cell walls, and intracellular vacuoles. Photosynthesis takes place in chloroplasts; cell walls allow plants to have strong, upright structures; and vacuoles help reg
PLEASE HELP!
Use two examples for plants to explain how the development of new technologies such as radioisotopes has increased our knowlegde of reactions in plants.
Answer: The radioactive isotopes can be used to track many physiological functions and chemical reactions occurring within the cells of the living organisms including plants.
Explanation:
Phosphorus uptake by the plants: Phosphorus is an essential mineral required by the plants for their growth and metabolism. The radioactive phosphorus-32 can be used to track back the rate at which the plant absorbs the phosphorus from the soil. This can help scientists to identify plants that can absorb phosphorus more quickly.
Pesticides levels in the plants: The pesticides levels in the plants can be traced by using radioisotopes such as chlorine-36. This can be used to trace the fact that how much of pesticide is present in the soil and how much of it is utilized by the plants. This is helpful identifying the fact that which pesticide is useful for the growth of the plants.
The diagram shows a large pond that dried out and formed into two smaller ponds.
What type of speciation occurred in the fish?
A. allopatric
B. peripatric
C. parapatric
D. sympatric
Answer:
A. allopatric
Explanation:
Allopatric speciation consists of the geographic separation of a continuous genetic background -population-, giving place to two or more new geographically isolated populations. These separations might be due to migration, extinction of geographically intermediate individuals, or geological events. In this type of speciation, some barriers impede genetic interchange or flow. The populations are separated by a barrier and can not get together and mate anymore. These barriers might be geographical or ecological.
When a geographical barrier emerges, this is known as a vicariant event. Vicariance is the geographical separation of a population imposed by discontinuities in the physical environment that divides populations that originally were continuous. The process of vicariant allopatric speciation involves different steps:
• The emergence of the barrier.
• Interruption in the genetic interchange
• The occurrence of new mutations and their accumulation in time in each population. Slow and gradual differentiation.
• Genetic divergence by natural selection and reproductive isolation makes it impossible for the two groups to mate even if the barrier disappears.
• Prezigotic isolation mechanisms favored by selection once a secondary contact between the new formating species occurs.
So in the exposed example, the original population was composed of fishes living in a pond under the same environmental conditions and selective pressures.
However, with time, the pond dried, causing a decrease in water level and the emergence of a new physical barrier. The original population got separated by a piece of ground, and the original pond turned into two smaller ponds. The physical barrier is now interrupting the genetic flow between both groups.
Animals on each pond suffer from different environmental pressures to which they need to adapt. New mutations occur, leading to genetic divergence between the two separated groups. Two species emerged, red fishes and blue fishes.
Two interacting systems involved in plant transport are shown here. Which statement best describes the function of xylem and phloem in transporting substances throughout the plant?
Answer:
C. Xylem transport water and nutrients from the soil to the leaves while phloem transport carbohydrates from the leaves to the rest of the plant.
Explanation: