Answer:
Gene mutations provide new alleles, making these mutations the ultimate source of variation. A gene mutation is an alteration in the DNA nucleotide sequence, producing an alternate sequence, termed an allele. Mutations occur at random, and can be beneficial, neutral, or harmful.
Explanation:
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Answer and Explanation:
The tectonic plates most likely formed those mountains, by having the tectonic plates come at each other, which would make them push up, forming the mountains. Hope this helps!
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Certain things need to come in and other things need to be send out of the cellWhich of the following is NOT example a the cell needs to bring into the cell?
A.Sugars
B.Oils
C.protein
D.fats
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What would be the genotypes of brown eyed parents who have a blue eyed offspring?
Answer:
If B is the allele for brown eyes and b is blue, the genotype of the blue-eyed man is bb. His wife must be a Bb heterozygote--she must have a B allele (she has brown eyes), but she must also have inherited a b allele from her blue-eyed mother (whose genotype was bb).
Explanation:
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PLEASE HELP WILL GIVE BRAIN!! The small dark cylinder shaped structures that help separate the chromatids are called !!
Answer:
Centrioles
Explanation:
Every animal-like cell has two small organelles called centrioles. They are there to help the cell when it comes time to divide. They are put to work in both the process of mitosis and the process of meiosis.
The small dark cylinder shaped structures that help separate the chromatids are called Centriole Structure.
How does condensation occur?
Water vapor rises from Earth's surface into the sky.
Water vapor cools and forms water droplets in clouds.
Water droplets fall to the ground from the sky.
Water runs across Earth's surface.
Answer:
1. Answer is B.
Explanation:
2. Bro this is something for the physics section, not biology.
Answer:
B.
Explanation:
Water vapor cools and forms water droplets in clouds. :o)
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Describe three things that you can do to conserve water. Why is it important that we all do what we can to conserve water? Use details to support your answer.
Answer:
We have to conserve water because we need it live.
Explanation:
We use water to clean ourselves, drink, and use in foods.
Answer:
Take shorter showers.
Install water-saving shower heads or flow restrictors.
Take baths.
Explanation:
These will save our water more often
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What is the main function of the Krebs cycle?
A. To break glucose down into two pyruvate molecules
OB. To produce carbon dioxide for use in the thylakoid
O C. To produce large numbers of ATP molecules
O D. To provide molecules for the electron transport chain
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Answer: True
Explanation:
The purpose of vaccines is to stop the flu or polio from spreading like wildfire. Without vaccines, people might realize that the flu is way worse than we take it to be. Most people are actually dying from the flu in 2020-2021, although it is not seen that way.
Which of the following will be the most similar?
Group of answer choices
Two cells in the same tissue
Two tissues in the same organ
Two organs in the same system
Two systems in the same organism
Answer:
a
Explanation:
Cells are the functional units of life, this means that all living organisms are made up of cells. In multicellular organisms, cells are organized into complex structures such as tissues, organs and systems. A tissue is made up of similar cells which have the similar function. An organ is made up of several tissues while a system is made up of related organs. Example of a tissue is blood which is made up of similar cells such as red blood cells and white blood cells.
A: Two cells in the same tissue.
If this is incorrect, please, don't refrain to tell me. Thank you.
What would be different about earth today if Pangea never broke
Answer:
Image result for What would be different about earth today if Pangea never broke
The rain which comes from the ocean wouldn't be able to travel far enough inland — leaving parts of Pangea practically uninhabitable by humans and other species. And weather up north would be different too, with Russia being much warmer than it is today.
Explanation:
Answer:
The world would just be a large clump of land with little to no space between country's
Explanation:
This could result in many situation, like more fighting over land, less need for boats, and many other situations
Which scenario MOST LIKELY represents genetic drift and why?
A. Scenario 1, because chance events led to a decrease in the number of dark beetles.
B. Scenario 2, because chance events led to a decrease in the number of light beetles.
C. Scenario 1, because the light beetles are most fit for the environment.
D. Scenario 2, because the dark beetles are most fit for the environment.
Answer:
A
Explanation:
The hurricane was by chance and genetic drift is about chance
Scenario 1, because chance events led to a decrease in the number of dark beetles. The correct option is A.
What is genetic drift?Genetic drift is a random process that can result in changes in allele frequency in a population over time.
In Scenario 1, random events reduced the number of dark beetles, implying that the frequency of the dark allele in the population decreased.
Natural selection or other factors that would have favored light beetles over dark beetles did not cause this decrease in frequency.
The dark beetles were affected more than the light beetles due to chance events such as random mortality or reproduction.
This is a classic example of genetic drift, in which random events cause changes in allele frequencies over time in a population.
Thus, the correct option is A.
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If you had extracted DNA from animal cells instead of plant cells, what cell barrier would have been different?
Answer:
Cell wall
Explanation:
Animal cells dont have a cell wall they only have a cell membrane whereas plant cells have both a cell wall and a cell membrane.
31. Adult humans normally produce feces with low water content due to the activities of the A. large intestine B. small intestine C. stomach D. anus
Adult humans normally produce feces with low water content due to the activities of the large intestine.
What are the functions of large intestine?The large intestine absorbs water and changes the waste from liquid into stool. Peristalsis helps move the stool into your rectum. Rectum. The lower end of your large intestine, the rectum, stores stool until it pushes stool out of your anus during a bowel movement.
The large intestine has 3 primary functions: absorbing water and electrolytes, producing and absorbing vitamins, and forming and propelling feces toward the rectum for elimination.
The purpose of the large intestine is to absorb water and salts from the material that has not been digested as food, and get rid of any waste products left over.
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Which of the following is true about the frame tale?
The story is told by a father reading a child’s diary.
The story is told by an old sailor.
The story is told by a thirteen-year-old girl as it happens.
The story is told by an older woman looking back.
Answer:its b
Explanation:
Natural selection is the idea that individuals which are better adapted to
their environment are more likely to survive than other members of the
same species
Answer:
True
Explanation:
How have some mountain plants adapted to their environment?
Explanation:
plants at higher elevations have stems or rhizomes which extend deeb beneath the soil. this allow them to store food so they can immediately grow in spring.
what causes differences in air preassure?
Answer:
Air temperature
Explanation:
These variations in air pressure are due to temperature differences caused by variations in solar energy received at the surface of the earth
Why will doing a defibrillator cause the heart to pump ?
Answer:
it shocks the hearts muscles jolting the heart into working again.
Explanation:
Answer:
Defibrillation delivers an electrical shock that causes all the heart cells to contract at the same time. This stops the abnormal rhythm and allows the heart to restart normal electrical activity.
Explanation:
Which are cloud service account attributes?
2. Tania went outside and made two observations of the Moon that were several days apart. Her
observations are shown in the diagram above. The light part of the Moon appeared to get larger over
time. Why did this happen?
The reason why the light part of the moon appeared to get larger over time is because between the first observation and the second observation, the moon moved so that Tania was able to see not of the half that faces the sun.
It should be noted that from the observation that Tania made, the light part of the moon appeared to get larger over time.
The reason for the above want due to rotation but rather because the moon moved so she was able to see not of the half that faces the sun.
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In this diagram of the water cycle, what process is represented by letter A?
oft
B)
evaporation
condensation
D)
precipitation
Answer:
Precipitation
Explanation:
Precipitation is water vapor that falls from the clouds.
what type of joint features mostly immovable articulations?
PLEASE HELP (Over Due)
Please only answer if you have used in edge 2020
Micha is in her 12th week of pregnancy.
Which term would she use to describe her developing baby?
zygote
blastocyst
embryo
fetus
Answer:
D. fetus
Explanation:
on edg:)
Micha is in her 12th week of pregnancy. Fetus term would she use to describe her developing baby.
What is Fetus ?The Fetus is a term used to describe particular period of time of pregnancy.
Initially, up to eighth week of pregnancy of mammal called Embryo. After the eighth week of pregnancy of mammal called Fetus until its born of baby.
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Bird guides once listed the myrtle warbler and Audubon's warbler as distinct species because of differences in color patterns of the feathers and size of the beak. Recently these birds have been reclassified as eastern and western forms of a single species, the yellow-rumped warbler, based on the observation that the two forms interbreed often in nature and the offspring have good survival and reproduction. The earlier classification into two species was using a species concept; the reclassification is using the species concept. _________
Answer:
morphological; biological
Explanation:
The morphological species concept highlights the importance of physical traits to delimit species. This concept is useful for classifying asexually-reproducing organisms and where lack information on interbreeding (for example, to classify fossils). On the other hand, the biological species concept states that one species represent a group of organisms that can interbreed (or potentially can interbreed) in order to produce fertile offspring. The biological species concept is nowadays the most widely accepted concept to define species.
Company's of the innate response include
A. The B cells and T cells
B. the skin and general immune cells
C. the effector cells and T cells
D. the antibodies and memory effector cells
Which of the following pair of genotypes result in the same phenotype?
Answer:
IB IB and IB i is the pair of genotypes that results in the same phenotype. genotypes means the genetic constitution of an individual organism. And phenotype is the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment.
Explanation:
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Around once per _________________, the moon __________________ around the Earth.
Answer:
I think that your answer would be (Month , orbits)