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3 years ago

Corals feed on eachother true or false

2 answers:

8 0

False. <span>Adult corals are sessile organisms, i.e. they don't move around. They are tiny organisms whose shells are what we generally see.</span>

Dennis_Churaev [7]3 years ago

8 0

Answer:

The given statement is false.

Explanation:

Corals obtain their food from the living algae present in their tissues or by catching and digesting prey. The majority of the reef-forming corals exhibit a specific association with tiny algae known as zooxanthellae. The algae thrive within the coral polyps, utilizing sunlight to produce sugar for energy.

This energy is mediated towards the polyp, offering much-required nutrition. In return, the coral polyps offer the algae with a protective home and carbon dioxide. Corals also consume tiny floating species known as zooplankton.

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in mammals, an increase in the temperature of the preoptic area of the hypothalamus activates physiological mechanisms for heat

serious [3.7K]

True. In mammals, an increase in the temperature of the preoptic area of the hypothalamus activates physiological mechanisms for heat dissipation including vasodilation.

<h3>What is vasodilation?</h3>

Vasodilation, as it is known in medicine, occurs when blood vessels in your body open up, enabling more blood to flow through them and resulting in a reduction in blood pressure. Without your knowledge, your body goes through a routine procedure like this. It can also be brought on by the foods and beverages you consume as well as the drugs you take. Vasodilation may also be a sign of a particular illness.

The two of the many functions that your blood serves in the body:

Carrying oxygen and nutrients
Aiding in temperature regulation in your body.

Your body's blood arteries are more complex than simple tubes that remain constant in size. Your blood arteries include muscle as well, and that muscle regulates how wide or narrow they are at any particular time. Vasodilation occurs when blood vessels enlarge. Vasoconstriction is the opposite process, which occurs when blood vessels narrow and contract.

To learn more about vasodilation visit:

brainly.com/question/10017075

#SPJ4

8 0

1 year ago

If a cell culture contains 400 cells/ml at time = 0 and it has a generation time of 30 minutes, how many cells (cells/ml) will b

Semmy [17]

Answer:

The answer to your question is: after two hours there will be 6400 cell/ ml

Explanation:

Data

Bacteria t = 0; 400 cells/ml

generation time = 30 minutes

# cells after two hours = ?

# of bacteria time

400 0

800 30 min

1600 60 min

3200 90 min

6400 120 min

7 0

3 years ago

What is the source of energy for all cycles in an ecosystem ?

jekas [21]

That would be the sun. Hope this helps.

8 0

3 years ago

Read 2 more answers

Two scientists wrote a paper detailing their research and conclusions and submitted it to a scientific journal. Several months l

Annette [7]

I think b is the answer

hope this helps

5 0

2 years ago

The membrane has open K channels, and changing extracellular K concentration results in a change in membrane potential. Changing

MrRissso [65]

Answer: Closed

Explanation:

At resting membrane potential( RMP) sodium channels remained shut, this is because , previously in depolarisation,the voltage gated sodium channels were opened for sodium to diffuse into the Axon. However these channels closed after reaching their refractory period,s.

Therefore a change in the extracellular concentration of sodium will not open them

3 0

3 years ago