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kvasek [131]
3 years ago
7

Evolution of new traits is possible because of

Biology
1 answer:
Ivan3 years ago
8 0

Answer:

transfer of genes between populations, as in migration, or between species, in horizontal gene transfer. Evolution occurs when these heritable differences become more common or rare in a population, either non-randomly through natural selection or randomly through genetic drift.

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Easy question. Will give brainliest
Law Incorporation [45]

Answer:

The commensal relationship between the sharks and remoras can be described as although remoras consume parasites, sharks with remoras show no better health or growth than sharks without remoras.

Explanation:

A commensal relationship refers to a relationship where two or more organisms in a habitat neither benefit or harm each other.

  • The second option infers that the remoras harm the sharks. This is a parasitic relationship.
  • The third option infers that the sharks are harmed by the remoras because the sharks depend on something that the remoras are limiting. This is also a parasitic relationship.
  • The fourth option infers a commensal relationship, but falsely describes it. The relationship described by this option is a parasitic relationship (one benefits, the other does not).

Therefore, the answer is the first option: Although remoras consume parasites, sharks with remoras show no better health or growth than sharks without remoras.

5 0
3 years ago
Read 2 more answers
Body mass index is used as a measure of obesity for all of the following reasons except
Arlecino [84]

options:

a) noninvasive

b) precise

c) inexpensive

d) easy

Answer:b) precise

Explanation: BMI(BODY MASS INDEX) is a very vital measurement tool for evaluating and the determining the level of Obesity of overweight of a person.

Body mass index is noninvasive, it is inexpensive and easy way of knowing how well the body weight and height is related to a person's well being.

It is calculated as follows; WEIGHT(KILOGRAMS)/SQUARE OF THE HEIGHT(METERS)

3 0
4 years ago
In metaphase where do sister chromatids go?
Setler [38]

Answer:

Long protein filaments called kinetochore microtubules extended from poles on either end of the cell and attached to the kinetochores. During metaphase, the kinetochore microtubules pull the sister chromatids back and forth until they align along the equator of the cell, called the equatorial plane.

Explanation:

3 0
3 years ago
Read 2 more answers
Growing two species of
Mice21 [21]

Answer:

Intraspecific Competition

7 0
3 years ago
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How does cell differentiation contribute to the formation of new, different types of skin cells?
ch4aika [34]

During cell differentiation, new proteins are expressed

During cell differentiation, some genes are silenced while some or expressed. Different cells differentiate differently depending on the type of cell is going to become. This is why even though all the cells in a multcellular organism have the same DNA, they become different organ systems that look different.

Explanation:

Different differentiated cells produce different proteins because they express different genes. For example Cells of the epidermis of the skin express the genes for producing keratin (the pigment molecule) while those in the dermis do not express this protein because this gene is silenced in dermis cells. In  addition, in dark-skinned people, these genes are more expressed that in people with light skin.

Learn More:

For more on cell differentiation check out;

brainly.com/question/4768354

brainly.com/question/3239346

#LearnWithBrainly

3 0
3 years ago
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