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xenn [34]
3 years ago
13

Two species of drosophila have been competing in the lab for a long time. a researcher notes that over the course of time, the c

ompetition coefficients of these species have become smaller. what is the most likely explanation of this change?
Biology
1 answer:
ser-zykov [4K]3 years ago
7 0
<span>The only traits that can be acted upon by natural selection are those that are controlled by ___________________</span>
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How does removing trees affect nitrogen cycling in a forest ecosystem? A. After clearcutting, more soil nitrogen was exported vi
mina [271]

Answer:

B. After clearcutting, plant uptake stopped and nitrogen accumulated in the soil.

Explanation: Clear cutting leaves the soil bare and allows for direct penetration of sunlight this increases the soil temperature which favors the activity of soil microrganism. This microrganism activity increase the production of ammonium and nitrate hence the increase in soil Nitrogen level. Clearcutting then allows for accumulation of Nitrogen produce due to removal of plant or forest tree that could use up the Nitrogen produced.

3 0
3 years ago
Which carbohydrate is found in plant cell walls and is indigestible for mammals and other animals ?
Margarita [4]

The indigestible carbohydrates that are found in plant cell walls are called dietary fibers. Dietary fibers are group of complex carbohydrates that is found mostly in vegetables, fruits and legumes. They include beans, whole grains such as wheat, nuts etc. Dietary fibers cannot be digested in mammals because the body lacks digestive enzyme that is required to break them down.






3 0
3 years ago
Which of the terrestrial planets is closest to the sun? A. Venus B. Earth C. Mars D. Mercury
olya-2409 [2.1K]

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

Answer:

The terrestrial planets mean the planets close to the sun. Mercury, Venus, Earth, and Mars are the terrestrial planets. Which one is the closest out of those four?

Explanation:

While Venus is the hottest, and Earth does have living beings, the closest is D) Mercury. This is because Mercury is the closest to the Sun. Mercury is only 28 - 44 million miles away from the sun, compared to the rest of the terrestrial planets.

I hope this helps!

- sincerelynini

7 0
4 years ago
Read 2 more answers
Antibiotics which are effective against a variety of microorganisms are called?<br>​
german

Answer: Fungi

Explanation: Antibiotics are chemicals that kill or inhibit the growth of bacteria and are used to treat bacteria infections. They are produced in nature by soil bacteria are fungi.

4 0
4 years ago
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Hello gift points.....​
vlabodo [156]
Amazayn thank you so much your briliam

6 0
3 years ago
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