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babymother [125]
3 years ago
12

Why would you expect an earthworm to lack an exoskeleton??

Biology
1 answer:
Murrr4er [49]3 years ago
8 0
You would expect an earthworm to have no exoskeleton because as you see it is very flexible and soft. Organisms with such have body parts that are divided and an earthworm do not have any visible parts on them also having an exoskeleton would not allow an organism to move like an earthworm does. 
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How is gymnosperm paraphyletic?
statuscvo [17]

I hope this helps

gymnoseperms meaning "naked seeds" are a diverse group of seed plants and are paraphyletic. paraphyletic groups are those in which not all members are descendants of a single common ancestor. gymnoseperm seeds are not enclosed in an ovary; rather, they exposed in cones or modified leaves

5 0
3 years ago
How do nucleus and riboson work together
vitfil [10]

<u><em>Answer:</em></u>

<em>The nucleus and ribosomes both involve messenger RNA (mRNA) during protein synthesis. The mRNA is made during transcription within the nucleus. The mRNA then travels out to the cytoplasm via a nuclear pore of the nucleus.</em>

<em />

<u><em>Explanation:</em></u>

<em>*Hope this helped*</em>

<u><em /></u>

3 0
3 years ago
What are the eight characteristics of living things?
rjkz [21]
Cellular organizations
reproduction
metabolism
homeostasis
heredity
response to stimuli
growth and development
adaptation through evolution
I hope this helped you
6 0
3 years ago
Choose all of the following that are examples of SECONDARY SUCCESSION? a. wild fire b. volcanic eruption c. glacier melting d. f
inn [45]

Answer:

i think it would be A for wild fire, D for flood and E for Tsunami

Explanation: wild fire are one of the most common ways for a secondary succession that can bring change when the environment is disturbed or damaged. For instance, by allowing fast-growing plants to grow and provide a source of food and shelter for many animals to use and eventually draw them back into the ecosystem. Both flooding and tsunamis help push older organisms and other stuff from the environment to create for room for other plants and animals to come and keep the ecosystem healthy and ongoing.

i hope this can help you with your work mate!

8 0
3 years ago
Which of the following chemicals opens us binding sites allowing muscle filaments to connect to each other? Select one:
HACTEHA [7]

Answer:

The correct answer will be option-D.

Explanation:

Calcium plays an important role in muscle contraction as they are released from the sarcoplasmic reticulum after they receive electric impulse.

Calcium triggers the muscle contraction cycle as these calcium ions bind to the troponin-tropomyosin complex. This binding exposes the myosin-binding site on the actin on which high energy myosin binds and cross-bridge is formed.

This cross-bridge formation causes the contraction of the sarcomere and therefore muscle contracts.

Thus, option-D is the correct answer.

3 0
3 years ago
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