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
podryga [215]
3 years ago
9

Why are shellfish populations often a good indicator of water quality?

Biology
2 answers:
Natalija [7]3 years ago
6 0

Answer:

A. many shellfish are filter feeders that absorb toxins from the water is the correct answer.

Explanation:

  • shellfish are filter feeders.
  • shellfish filter water by absorbing particles and toxins present in the water, they maintain the water quality by pumping the water with the help of their cilia that cover their gills.
  • Shellfish need a large amount of dissolved oxygen and their excess is a sign of the good quality of water.
  • There are different types of shellfish such as crab, clams, oysters, crayfish, and mussels.

thus option(A)  many shellfish are filter feeders that absorb toxins from the water is the correct answer.

Andrej [43]3 years ago
5 0
 the final answer is A
You might be interested in
Help with this please
Elza [17]
I guess it should be 90 mL
3 0
2 years ago
Read 2 more answers
The primary electron acceptor in photosystem II is __________. Group of answer choices P700 P700 P680 P680
sesenic [268]

Answer:

680

Explanation:

When the P680 special pair of photosystem II absorbs energy, it enters an excited (high-energy) state. Excited P680 is a good electron donor and can transfer its excited electron to the primary electron acceptor, pheophytin.

7 0
2 years ago
Which of the following is not an example of potential energy?
denis-greek [22]

Answer:

:v

aaaaaaaaa

Explanation:

7 0
3 years ago
Read 2 more answers
Union of haploid and diploid gamete results in a zygote that is
nikdorinn [45]

Answer:

Triploid

Explanation:

The process whereby gametes produced by different sexes of the same species of organism come together is called FERTILIZATION. A gamete is said to be HAPLOID (n) if it contains one set of chromosomes while it is DIPLOID (2n) if it contains two sets of chromosomes.

Hence, if an haploid (n) and diploid (2n) gamete unites, a zygote that is TRIPLOID (3n) emerges or forms. A triploid zygote will have three sets of chromosomes i.e. n + 2n = 3n.

5 0
2 years ago
What is the number of high and low tides determined by?
AleksAgata [21]
The moon's gravitational force
3 0
2 years ago
Read 2 more answers
Other questions:
  • What is the only definitive diagnostic test for alzheimer's disease?​?
    5·1 answer
  • Plants use carbohydrates to build things such as cellulose. How do plants acquire these building blocks to build mass?
    12·2 answers
  • What is released when sugar is broken down
    11·1 answer
  • What is the chemical formula of the first carbohydrate molecule
    8·1 answer
  • Describe the procedure of hypophysation​
    11·1 answer
  • During the ______ _________ of an action potential, voltage-gated potassium channels are open and the voltage-gated sodium chann
    13·1 answer
  • 4. The conditions of weather are part of
    11·2 answers
  • During what major stage does a person feel either industry or inferiority?
    15·2 answers
  • True or False: Interphase takes up roughly 90% of the time it takes to undergo mitosis, about 23 hours.
    10·2 answers
  • Exam Instructions
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!