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
Ilya [14]
3 years ago
7

What is characteristic of ecdysozoans?

Biology
1 answer:
kodGreya [7K]3 years ago
7 0

Answer:

D) Some kind of exoskeleton, or hard outer covering

Explanation:

Ecdysozoa is a clade of animals that gathers arthropods, nematodes and seven other phyla. These organisms have a type of exoskeleton, or hard outer lining that limits the growth of these animals. At some point in the life of these animals, the "exoskeleton" becomes tight and forces these animals to form a new exoskeleton in order to grow. The process of moving from one exoskeleton to another is called ecdysis and also happens in insects.

You might be interested in
Why Should A Potometer be Allowed to stand before starting the Experiment​
mamaluj [8]
It is crucial to avoid air bubbles in the assembled potometer. The plant stem must be cut under water to prevent airlocks forming in the xylem. All fittings must be tight so that the only way the apparatus can lose water is by the plant transpiring.
8 0
3 years ago
What might happen in a community if all the nitrogen-fixing bacteria died?
Fed [463]
The community might die off .

 hope that this helps bro .
<span />
3 0
3 years ago
Homeostasis _____. 22 points if you help
xz_007 [3.2K]

Answer:

B

Explanation:

Homeostasis is defined as a regulating process to maintain balance within the body systems. It is to maintain the interior conditions and ensure that nothing goes wrong or out of the ordinary. Choice B matches this.

A is incorrect because homeostasis can occur <em>both</em> at the cellular level <em>and</em> at the system level.

C is incorrect because homeostasis actually occurs in prokaryotes, as well.

D is incorrect because both A and C are wrong.

Hope this helps!

4 0
4 years ago
Most of the water that fills Earth's oceans probably came from ____________________________.
madreJ [45]

Answer:

Rain

Explanation:

It rains a lot of earth, and the water stores this rainwater in the oceans.

3 0
3 years ago
What is the relationship between enzymes and activation energy?
Georgia [21]

Hello!

Chemical reactions require energy to begin. The reactants must collide with enough energy for bonds to change. This energy is known as activation energy - the difference in energy between that of the reactants and the amount needed for the reaction to occur.

Catalysts lower the activation energy needed for a chemical reaction to occur, therefore also increasing the rate of a reaction. Enzymes are proteins which act as catalysts within cells.

Therefore, enzymes cause the activation energy to lower.

Hope this helps!

8 0
3 years ago
Other questions:
  • How are organic sedimentary rocks different from other sedimentary rocks?
    10·2 answers
  • The two processes that determine the world's current biodiversity are
    6·1 answer
  • What rids the body of nitrogen containing waste
    13·1 answer
  • HELP!!! What carries O2 and nutrients to tissue and carries metabolic waste away from tissues?
    11·2 answers
  • What is the end result of succession?
    13·1 answer
  • Which are physical changes? (Select all that apply.)
    9·2 answers
  • QUESTION 20
    9·1 answer
  • .
    9·2 answers
  • In ecosystems, interactions happen between communities and their surroundings.<br> True or False?
    10·1 answer
  • Scientific researchers discovered agents that behaved like bacteria causing diseases such as rabies and hoof-and-mouth, but were
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!