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jeyben [28]
3 years ago
7

How does food surplus change the social environment?

Biology
1 answer:
STALIN [3.7K]3 years ago
4 0

Answer:

Animals don't have to compete for it

Explanation:

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A neurotransmitter may have an excitatory or an inhibitory effect on the postsynaptic cell, depending on __________.
Otrada [13]

A neurotransmitter can have an excitatory or inhibitory effect on the postsynaptic cell, depending on <u>which of its </u><u>receptor(s</u><u>) are present on the </u><u>postsynaptic</u><u> (target) cell.</u>

<h3>How do excitatory and inhibitory neurotransmitters act?</h3>

Sometimes neurotransmitters can bind to receptors and cause an electrical signal to be transmitted through the cell (excitatory). In other cases, the neurotransmitter can prevent the signal from continuing, preventing the message from being carried (inhibitory).

With this information, we can conclude that a neurotransmitter is a signaling molecule secreted by a neuron to affect another cell across a synapse.

Learn more about neurotransmitter in brainly.com/question/9725469

#SPJ1

6 0
1 year ago
Which of the following is true about the products formed during photosynthesis?
Elina [12.6K]
Should there be answer choices that go with this question?

If not here is an answer that may help.

This is how the cycling between photosynthesis<span> and cellular respiration occurs: </span>in photosynthesis<span>, carbon dioxide and water, </span>in<span> the presence of light energy, are converted to make glucose and oxygen.</span>
8 0
3 years ago
Read 2 more answers
The first line of defense against pathogens includes:
bagirrra123 [75]

Answer: Option B

Explanation: The first line of defense acts a barrier and does not allows the foreign materials to enter inside the body. It includes chemical and physical  barriers that are always ready to protect the body from infection.

Example: Skin and mucous membrane.

Skin is largest organ and it acts as a barrier between pathogens and human body. It acts a waterproof material and the pathogens cannot get inside through skin unless the skin is broken.

Mucous membranes also acts as first line of defense and breaks the cell wall of many bacteria entering through the openings of the body.

So, skin and mucous membrane are the first line of defense.

8 0
3 years ago
What causes male fish to develop female eggs in their bodies?
SpyIntel [72]

Answer: condition intersex

Explanation: what causes this is unknown, it's been linked to manmade, environmental chemicals that block or mimic sex hormones.

4 0
3 years ago
The activation of beta2 receptors in the bronchi causes bronchodilation (an increase in diameter of the bronchi), making it easi
UNO [17]

Answer:

The correct answer is (b) epinephrine.

Explanation:

Epinephrine, also known as <em>Adrenaline</em>, is a hormone secreted by the medulla of the adrenal glands.

In medicine, epinephrine is used as a stimulant in cardiac arrest, as a vasoconstrictor in shock and as a bronchodilator and antispasmodic in bronchial asthma.

When epinephrine is inhaled in small doses, it causes short-term relief from the symptoms by widening the bronchial tubes allowing air to pass through.

I hope it helps!

8 0
3 years ago
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