A change in the genetic material of a cell is called a what
O polygenic trait.
O recombination.
O single-gene trait.
O mutation.
Determine whether the following species are extinct, endangered, or threatened.
The Tasmanian tiger, the largest known carnivorous marsupial, was wiped out of the wild due to constant hunting:
The Amur leopard is now gone from most of its original habitat due to human activity. Only twenty to thirty Amur leopards remain in the wild:
Western Lowland gorilla populations have dropped sixty percent in the past twenty-five years due to poaching, habitat loss, and, mainly, disease. Their numbers are expected to keep dropping, and the species could soon disappear:
The Eastern gemfish population has declined due to commercial fishing. New protection efforts seem to be helping the population slowly recover:
The golden toad was forced from its breeding sites when erratic weather caused pools to dry up. No frogs have been found in over two decades:
multiple choice answer options: extinct species, endangered species, threatened species
Please help me its for my ingenuity class
Answer:
Extinct
Endangered
Endangered
Threatened
Extinct
Explanation:
What is the climate of the coniferous forest biome?
long, rainy summers and short, extremely cold winters
no distinct seasons; cold and snowy all year around
short, humid summers and long, harsh winters
four separate seasons with precipitation falling equally in each season
Answer:
short, humid summers and long, harsh winters
Explanation:
Got it right on my quiz.
Which of the following statements about the effects of agricultural techniques on the environment is true?
Answer: It’s A for edgu 2021 topic test:)
Explanation:
The image shows the anatomical features of the limbs of a cat and a human What evidence do the structures provide? being.
The similar structure of the limbs indicates that the organisms evolved at the same time.
The similar structure of the limbs indicates that the organisms share a common ancestor.
The similar structure of the limbs indicates that the organisms develop at the same rate.
The similar structure of the limbs indicates that the organisms live in the same habitat.
Answer:
The similar structure of the limbs indicates that the organisms share a common ancester.
Explanation:
The limb structures of human and female limbs are homologous, indicating that they evolved from a common ancestor.
On DNA, a ____________________ base will always pair with a __________________ base.
Answer:
Purine, Pyrimidine
Explanation:
DNA bases consist of two subgroups,
Purines: Adenine and Guanine
And Pyrimidines: Cytosine and Thymine
In genetic material, Adenine bases are always paired with Thymine bases, and Guanine bases are always paired with Cytosine bases. This is why a Purine base will always be paried with a Pyrimidine base.
Fun tip: If you have a hard time remebering which bases are which, a trick I personally use is that Alanine and Guanine are purines, and their code letters (AG) are the symbol for the element silver, which is a type of pure alloy. So AG --> Silver --> Pure --> Purine
If that helps :)
which statement best summarizie the principle of fanul succession
Answer:
Fossils in older strata are more primitive than fossils in more recent strata.
Maintenance of the pH of human blood within a certain range is an example of
(1) chemical digestion
(2) synthesis
(3) respiration
(4) dynamic equilibrium
You set out to observe the symbiotic relationship between a species of orchid and a species of fly. This species of orchid is only pollinated by this one species of fly, and the flies seem to prefer that orchid over any other flower for its nectar supply. Identify and describe two reasons for the proximate causation for the species-specific preference of this fly. Select one of the reasons and make a prediction on the outcome on species-specific preference of the fly. Justify your prediction with evidence
The two reasons for the proximate causation for the species-specific preference of this fly include:
NectarColorWhat is Symbiosis?This is described as the interaction between two dissimilar organisms which in this case is between the orchid and fly.
The color of the orchid is bright which attracts the fly to it thereby resulting in pollination. This is because they come in contact with the anther which contains the pollen grains.
Read more about Symbiosis here https://brainly.com/question/494031
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According to the Hertzsprung-Russell diagram, which two groups are most likely to contain the stars with the lowest temperatures? A. Supergiants B. Giants C. Main sequence stars D. White dwarfs
Answer:
D
Explanation:
are the final evolutionary stage of low to intermediate mass stars and are found in the bottom left of the HR diagram
Answer: A. Supergiants and C. Main sequence stars
Explanation:
A mountain range that separates two
species of bears is an example of which
of the following types of barriers?
A. ecologic isolation
B. temporal isolation
C. geographic isolation
D. mechanical isolation
A mountain range that separates two species of bears is an example of geographic isolation. Thus, the correct option for this question is C.
What is Species separation?Species separation may be characterized as a type of mechanism through which species are separated from one another by prezygotic and postzygotic barriers, which prevent mating or the production of viable, fertile offspring.
The process of speciation may occur due to isolating mechanisms, like geographical isolation which is known as allopatric isolation. Different geographical areas play an important role in the process of separating two or more species that give rise to speciation.
Therefore, a mountain range that separates two species of bears is an example of geographic isolation. Thus, the correct option for this question is C.
To learn more about Speciation, refer to the link:
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A commercial on television advertises a new medicine that claims to boost immunity. You want to verify that the claim is scientifically based. Which source is least likely to provide you with accurate information about this new medicine?
A) a magazine about entertainment and lifestyle trends
B) the studies that the television ad cites
C) a brochure from the doctor’s office
D) the website of the governmental agency that tests health products
Answer:
A.
Explanation:
because magazine articles are usually biased and since it's about lifestyle & entertainment, it is not relevant for accurate information.
50 POINTS!!
What is the name for the space inside the ribs that the lungs fill?
cavity
chest
lungs
diaphragm
Answer:
Cavity
Explanation:
The proper name is the plerual cavity. This space is filled with fluids that allows movement against the ribs.
Why do recipient cells become donor cells after conjugation has occurred?.
Answer:They are now genetically identical to the cell with which they conjugated.
Explanation:
They have received proteins that allow them to produce a hormone.
Could someone PLEASE help me out here
Students set up a controlled experiment by growing the same type of seedlings in two different locations. After a period of time, the students observed the seedlings and recorded their observations in the table shown. What caused the shoots of the seedlings on the windowsill to bend toward the window? Hormones produced in response to a light stimulus. Hormones produced in response to a light stimulus. Sugars produced in response to a gravity stimulus. Sugars produced in response to a gravity stimulus. Carbon dioxide produced in response to a water stimulus. Carbon dioxide produced in response to a water stimulus. Water produced in response to a nitrogen stimulus. Water produced in response to a nitrogen stimulus.
What can make the shoots of seedlings on the window sill bend toward the window would be the production of hormones in response to light stimulus.
What is Phototropism?It is the movement of organisms in response to light. It can be of two types:
Positive phototropism when the organism moves toward light.Negative phototropism when the organism moves away from light.Plants are generally positively phototropic. The light stimulus stimulates the production of a hormone whose activities cause the plant to bend towards the light source.
More on phototropism can be found here: https://brainly.com/question/15517003
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Explain how cpr procedure benefit air forced ibto the pateint lungs
Answer: it keep oxygen rich blood flowing to the brain and other vital organs if the heart or lungs stop working on their own. The medical term for this is “loss of automatic function.”
Explanation: If the person is unconscious or out of breath you're going to have to give the person CPR because it's the air that helps the heart keep beating so if there is no air for the patient
Answer:
Sometimes the patient can't breathe on their own and you have to help
Explanation:
I'm not sure I understand the question but I hope that helps
In what type of cell does the cell wall take place of the membrane?
a. plant cells
b. fungi cells
c. cell walls never take place of cell membranes
Answer:
A: Plant Cells
Explanation:
the cell membrane is found in all living species, including plants.
what are the outputs of aerobic respiration
Answer: check online for the answer
Explanation:
How can the actions of one species help or harm another species?
Transformation is the transfer of dna from a donor to a recipient cell:
Transformation is the transfer of DNA from a donor to a recipient cell, mediated by a bacteriophage through the process of crossing over.
What do you mean by DNA?DNA stands for Deoxyriobo nucleic acid. It is considered the genetic material in most of the organisms living on the earth's surface.
It is the process that involves the horizontal gene transfer among prokaryotes. During this process, the DNA of the donor cell integrates into the recipient cell.
Therefore, transformation is the transfer of DNA from a donor to a recipient cell, mediated by a bacteriophage through the process of crossing over.
To learn more about Transformation, refer to the link:
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Why do you think cardiac surgery was referred to as the "Mount Everestof medicine before November of 1944
Which of the following is true of meiosis?
Choose 1 answer:
It occurs in all cells.
It contains only one cell division.
It does not require interphase to occur first.
It produces haploid cells.
Explanation:
true for meiosis :-
d) It produces haploid cells.
Because meiosis is also called reductional division as it divides the chromosome no. into half .
Identify three organisms that belong in the same phylum as green algae and where they can be found.
what is the law of conservation? How does the law of conservation relate to energy conservation?
Answer:
The law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another.
Explanation:
hope that helps :)
A group of ecosystems that have the same climate and dominant communities is called a
Habitat
True
False
If I know the relative position of the Earth in its orbit around the Sun then I can predict the seasonal pattern because it is a cycle that repeats. For example,
Answer:
7
Explanation:it takes one year for the earth to orbit the earth and there are four seasons.
how was the ocean dumping act implemented
Answer:
Public Law 97-424, enacted in 1983, placed a 2-year prohibition on ocean dumping of any low-level radioactive waste. Public Law 100-688 terminated the dumping of sewage sludge and waste from industrial companies (commencing with the 270th day after November 18, 1988) under certain conditions.
Explanation:
Answer:
placed a 2-year prohibition on ocean dumping of any low-level radioactive waste.
Explanation:
Public Law 100-688 terminated the dumping of sewage sludge and waste from industrial companies (commencing with the 270th day after November 18, 1988) under certain conditions.
hope this helps
PLEASE HELPPPPPPP MEEEEEEEEEEE
Answer:
C and D
Explanation:
The nucleus (the dark blob in the center of the cell) is clearly visible in every cell in the diagram, which means that this is a eukaryotic cell undergoing mitosis. F is, therefore, not a correct answer. The product of mitosis is two genetically identical daughter cells.
Binary fission occurs prokaryotic cells, and does not apply in this case, so A is not a correct answer.
Cells do not undergo $exual reproduction, so B is not a correct answer.
While eukaryotic cells generally do have ribosomes, it is possible to infer that the cells contain ribosomes. However, the ribosomes are not visible in the diagram, so E is not a correct answer.
What organ turns mostly liquid waste into a solid-like waste by absorbing the water?.
