BIOLOGY COLLEGE

The English moth, Biston betularia, is often cited as an example of observed evolution. There are two colors of this moth, light anddark (typica and carbonaria). Kettlewell found that dark moths constituted less than 2% of the population prior to 1848. Then, the
frequency of the dark coloration began to increase. By 1898, the 95% of the moths in Manchester and other highly industrialized
areas were of the dark color. Using the moth example, analyze the events in order to identify support for the statement: natural
selection changes populations, not individuals. Choose ALL that apply.
A)
Variation in the population existed.
B)
Color variation is a result of different gene combinations.
In response to environmental change, moth coloration changed from light
to dark.
D)
Due to natural selection, the ratio of different genetic combinations is
changing
E)
Predator pressure resulted in the light colored genotype being removed
from the gene pool.
Evolution

Answers

Answer 1
Answer:

Answer:

a,b,d,e

Explanation:

did it on usatestprep lol

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You transform an E. coli bacterium with the pGLO plasmid. After growing the +pGLO bacteria on an LB+Ampicillin+Arabinose plate, you see distinct colonies form after 16 hours. You check these colonies under the UV light and see that they are glowing a bright fluorescent green color. If you use a sterile loop and inoculate a new plate with LB+Ampicillin+Arabinose (coated on them, as usual) with these transformed E. coli will you see any growth? If there is growth, will it glow?
Brainstorm and create a list of 4 human activities that interfere with ecosystems, food chains and food webs. For each explain how it happens, why we do it, and mention short and long term effects
Help please! A bee lands on a flower to collect nectar needed to make food. Pollen from the flower sticks to the bee's body. The bee then flies to another flower to collect more nectar. While there, the pollen from the first flower rubs off, pollinating the plant. This allows the plant to reproduce. Which type of symbiotic relationship does this represent?
Addiction is a disease that disrupts the brain systems that regulate self-discipline. a. True b. False

In which range is the peak wavelength of a star that is much hotter than the Sun most likely to be? A) radio waves B) infrared radiation C) microwaves D) ultraviolet light

Answers

The range in which the peak wavelength of a star that is much hotter than the Sun most likely to be ultraviolet light. Therefore, option (D) is correct.

What is peak wavelength of star?

The peak wavelength is the wavelength at which a radiation source emits the most energy or has the highest intensity. It is related to the temperature of the source through Wien's law, as hotter sources emit shorter wavelengths of radiation.

The peak wavelength of a star is related to its temperature through Wien's law. Wien's law states that the wavelength of the peak intensity of a blackbody radiation curve is inversely proportional to its temperature. Therefore, hotter stars have shorter peak wavelengths than cooler stars. Since ultraviolet light has shorter wavelengths than visible light, stars that are much hotter than the Sun would have their peak wavelength in the ultraviolet range. Thus, the correct option is D) ultraviolet light.

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Answer:

the correct answer is option D

Explanation:

Where does nitrogen go after it's absorbed by an oak tree​

Answers

Oak trees need nitrogen or carbon dioxide to live but because they don’t need oxygen the tree will release it to the world for the human to breathe

The secretion of hormones by the pituitary gland is an example of _______________.autocrine signaling
paracrine signaling
endocrine signaling
direct signaling across gap junctions

Answers

Answer:

The correct answer is the third option - endocrine signaling.

Explanation:

The endocrine signaling takes place when endocrine cell organs or glands release hormones that flow through the bloodstream and that act on distantly located target cells in the body. The endocrine system includes several glands that release or secretes different hormones.

The pituitary gland transfers signals to other endocrine glands to release or inhibit their hormone production according to the brain signals. The adrenocorticotropic hormone (ACTH) is released by the anterior pituitary gland that stimulates cortisol release in the adrenal glands in stressed conditions.

Thus, the correct answer is option third - endocrine signaling.

Final answer:

The pituitary gland secreting hormones is an example of endocrine signaling, where hormones are secreted directly into the bloodstream and carried to target cells.

Explanation:

The secretion of hormones by the pituitary gland is an example of endocrine signaling. Endocrine signaling refers to the process where glands secrete hormones directly into the bloodstream, which are then carried to the target cells elsewhere in the body. In contrast, autocrine signaling involves cells responding to their own signals, paracrine signaling refers to cells communicating with nearby cells, and direct signaling across gap junctions involves communication between adjacent cells through specific channels.

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Sedimentary rock is converted into metamorphic rock with the addition ofA.nuclear energy
B. Kinetic energy
C. Potential energy
D. Heat energy

Answers

D. Heat Energy


Sedimentary rock is converted into metamorphic rock with exposure to heat, pressure, heated mineral solutions, or a combination of any of them.
D. Heat Energy

When sedimentary rocks are buried deep beneath the earth’s surface, great pressure and tremendous heat change these rocks into new rocks containing different minerals. These are metamorphic rocks.

Which person's study is being done at a micro-level orientation?A. Damian is studying how children in the Dun family make decisions
about what to eat.
B. Kim is studying how two adults with the same level of education
greet one another
C. Chantel is studying how countries in the Americas help one
another
D. Stephanie is studying how the political and economic institutions
of a country interact with one another.
(This is sociology and idk if the answer is B or D) please help

Answers

Answer:

The correct answer would be B, Kim is studying how two adults with the same level of education.

Explanation:

I hope this helps you and excellent job on narrowing down the answer choices! :)

RNA has the nitrogenous base of uracil instead ofwhich is present in DNA.
A. adenine
B. cytosine
C. thymine
D. guanine

Answers

Answer:

thymine

Explanation:

Though both RNA and DNA contain the nitrogenous bases adenine, guanine and cytosine, RNA contains the nitrogenous base uracil instead of thymine. Uracil pairs with adenine in RNA, just as thymine pairs with adenine in DNA.

answer is thymine because is DNA adenine pairs with thymine and cytosine always pairs with guanine, in RNA the only thing changed is that adenine pairs with Uracil
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