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Harlamova29_29 [7]
2 years ago
14

Need help with 2 science 10 questions (20 points)

Biology
1 answer:
viva [34]2 years ago
5 0
A) Alternation of environment.
B)Have reserves/national parks protecting these creatures, and also counting them as extinct creatures so they can be protected more.
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Tamara’s muscle weakness and fatigue becomes progressively worse over the course of the day. This is a hallmark sign of myasthen
vekshin1

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Explanation:

Sinapsis in biology is a structure in which a neuron cell communicates with another using an electric or chemical sign.

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3 years ago
Preventing eggs from being released from the body each month is a trait of which method of birth control?
Valentin [98]
The term being describe above is the hormonal method in which it prevents the egg from reaching the ovaries to prevent the women from being pregnant during intercourse. There are different types of hormonal methods being used, and it does not only prevent eggs in reaching ovaries but it prevents also sperm in reaching the uterus.
6 0
3 years ago
HELP I NEED HELP ASAP
FinnZ [79.3K]

Answer:

C. To confirm that the alternative fuel is cleaner than fuels currently used

Explanation:

The current fuels from mining, cutting down trees and even transportation is bad for the atmosphere. These fuels cause climate change which could potentially bring a lot of dangers. The reason scientists would conduct research on a newly alternative fuel is so that the fuel would be a lot more cleaner which could prevent the dangers that are to come.

7 0
2 years ago
Nicotine from cigarette smoke acts as a ligand and associates with the acetylcholine receptor on specific cells in the nervous s
Vitek1552 [10]

Answer:

The correct order of events is:

C) Nicotine binds to the transmembrane protein that normally binds the neurotransmitter acetylcholine.

A) The acetylcholine receptor is an ion channel, and when a ligand binds, the ion channel opens.

B) An influx of ions carries the signal to the reward areas of the brain.

D) The signal causes release of dopamine in the brain, which causes good feelings.

E) Nicotine is quickly eliminated from the body (causing cravings for more cigarettes to produce good feelings).

Explanation:

Nicotine acts on acetyl cholinergic receptors that are located in membranes of the midbrain neurons. Nicotine can activate those receptors or block them more efficiently than acetylcholine.   Stimulation of nicotinic receptors leads to an increase in ions flow that reaches the brain and causes dopamine release in the nucleus accumbens through axonal prolongations of the dopaminergic pathway. This response is responsible for the smoker´s recompense sensation.

The dopaminergic pathway is the most important way in the process of nicotine dependence and addiction to the drug.  

8 0
3 years ago
Which choice best describes how DNA fingerprinting has improved the identification of organisms?
topjm [15]
B I think is the answer sorry if I’m wrong
8 0
1 year ago
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