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kykrilka [37]
3 years ago
6

What two substances give the sponge support?

Biology
1 answer:
ValentinkaMS [17]3 years ago
5 0

Answer:the calciferous and siliceous spicules

Explanation:

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Living things require energy to grow and reproduce and to carry out different cell processes. certain cells can capture energy f
Alex Ar [27]
Plant cells can capture the energy from the sun through the process of photosynthesis.

Hope this helps!
7 0
3 years ago
What neurotransmitter is released from the sympathetic preganglionic fiber?
muminat

The neurotransmitters which is released from the sympathetic preganglionic fiber is <u>acetylcholine</u>

<h3>What are neurotransmitters?</h3>

Neurotransmitters are those chemical substances which are released at the end of a nerve fibre by the arrival of a nerve impulse and by diffusing across the synapse or junction, they effects the transfer of the impulse to another nerve fibre

So few other examples of neurotransmitters are:

  • Serotonin
  • Dopamine
  • Glutamate
  • Histamine
  • Norepinephrine

So therefore, the neurotransmitters which is released from the sympathetic preganglionic fiber is acetylcholine

Learn more about neurotransmitters:

brainly.com/question/13802823

#SPJ1

7 0
2 years ago
How do you think fossils form?
marissa [1.9K]
Fossils are formed in different ways, but most are formed when a plant or animal dies in a watery environment and is buried in mud and silt. Soft tissues quickly decompose leaving the hard bones or shells behind. Over time sediment builds over the top and hardens into rock.
6 0
3 years ago
Anything that causes a reaction or change in an organisms or any part of an organism
weeeeeb [17]
It it called a stimulus
6 0
4 years ago
What is the speed, in m/s, of a wave on a cord if it has a wavelength of 4m and a period of 0.5 s?
Mariulka [41]
Velocity= frequency* wavelength
            Frequency= 1/periodic time
                             = 1/ 0.5s
=2 Hz
Velocity= 2Hz*4m
Velocity= 8m/s
8 0
3 years ago
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