1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Elina [12.6K]
3 years ago
11

When heavily armored marine sticklebacks have invaded freshwater lakes where there are no predatory fish, their populations have

evolved lighter body armor. Given what you've learned about evolution, which of the following explanations for why this happens is most plausible?A. Young sticklebacks only grow heavy armor when they see predatory fish in their environment. B. When sticklebacks don't use their armor, it shrinks. Then they pass lighter armor to their offspring. C. Concentrated pollutants in freshwater lakes disrupt the sticklebacks' ability to grow armor. D. Heavily armored fish grow more slowly and breed later, making armor dis-advantageous in these lakes.
Biology
1 answer:
eduard3 years ago
4 0

Answer:

B

Explanation:

<em>The correct answer would be that when sticklebacks don't use their armor, it shrinks. Then they pass lighter armor to their offspring.</em>

According to the theory of natural selection, adaptive traits that enable organisms to survive in an environment are selected by the forces of natural selection.

<u>When a particular trait is not needed for survival in an environment, the trait gradually degenerates within the population as natural selection ignores the existence of such trait. The degenerated trait is inherited by the subsequent generations of the population.</u>

The mechanism is also consistent with the law of use and disuse of organs by Jean Larmack.

The correct option is B.

You might be interested in
In guinea pigs, rough coats (with lots of swirly cowlicks) are dominant over smooth coats. If an RR guinea pig is crossed with a
love history [14]
3/4 RR
1/4 Rr should be it
6 0
2 years ago
What a catutus plant adapted to?​
yarga [219]

Answer:

heat of the Sahara desert

Explanation:

8 0
3 years ago
The rocky material left behind by a retreating glacier forms what is called a moraine. When primary succession occurs on a morai
nexus9112 [7]

Answer:

The correct answer is - B. Lichens.

Explanation:

Lichens are one of the pioneer species that can grow on bare rock such as moraine and help make soil for further ecological succession and making ground for other species.

Breaking the bare rocks to convert into the soil is part of the primary succession. Lichens are colonized over these rocks and they contain acid which leads to the breakdown of the moraine and other rocks.

5 0
3 years ago
ON A TIMER!
Semenov [28]

Answer:

a,d, e

hope i got to it in time

4 0
3 years ago
Read 2 more answers
Lichens are a mix of two organisms—a fungus and an alga. The alga, by virtue of its ability to carry out photosynthesis, provide
Umnica [9.8K]

Answer:

Mutualism

Explanation:

This type of relationship is where all organisms involved benefit from the interaction. The relationship can be obligatory (where the organisms cannot live independent of each other) or can be facultative (where they can also live independent of each other). In lichen, this relationship is facultative.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Wolves are predators for hares. the wolf population increases. what happens next?
    11·2 answers
  • Bears and salmon have a predator-prey relationship. What would most likely happen to the bear population if the salmon populatio
    11·1 answer
  • Mrs. j. is a 63-year-old woman who has a history of hypertension, chronic heart failure, and sleep apnea. she has been smoking t
    5·1 answer
  • The structure which produces pollen is called the .<br><br><br><br><br> .
    8·2 answers
  • What are 2 food making processes?
    11·1 answer
  • A short mRNA sequence is shown in the box below. Determine the DNA sequence from which this mRNA sequence was transcribed.
    11·2 answers
  • Which solution of ethyl alcohol is more effective at inhibiting microbial growth: a 70% solution or a 100% solution? Why?
    13·1 answer
  • Unlike life at the top of a body of water, life at the bottom of the body of water A. performs much more photosynthesis. B. rece
    9·2 answers
  • 1. The structure that's not a component of wall of sponges is <br>​
    8·1 answer
  • What blood type(s) has A-Antigens? Choose ALL that apply!
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!