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Oksanka [162]
3 years ago
8

Different energy sources provide different benefits to individuals and the environment. What are some nonpolluting sources of en

ergy? a. coal, oil, and natural gas. c. alcohol and acetylene. b. nuclear energy. d. wind, solar, and hydroelectric power.
Biology
1 answer:
Vikki [24]3 years ago
3 0

Answer:

D the others are highly pollutant expesially nuclear and natural gas

Explanation:

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Which statement describes the condition of the heart at the point indicated in the electrocardiogram?
wariber [46]

Answer:

I think it's B

Explanation:

During QRS that's when the depolarization happens and when that happens the ventricles contract and push blood to the lungs and body.  

5 0
3 years ago
Nina was almost hit by a bus. However, she is okay and her parasympathetic system is responding accordingly. It is: Please choos
Ahat [919]

Answer:d) contracting her pupils and increasing secretion of stress hormones.

Explanation:

Peripheral nervous system consists of 3 major neuronal levels: vegetative (reticular formation and brain stem), limbic system and neocortical level. The RAS is the link between the brain and the spinal cord.

Brain stem consists of pons, medulla oblongata and mesencephalon. Brain stem is responsible for involuntary functions such as heart beat, respiration and vasomotor activity. Limbic system represents the emotional control center. It consists of thalamus, hypothalamus and pituitary gland and maintains homeostasis. Neocortical part processes sensory information and regulates emotional responses.

Autonomic nervous system (ANS) regulates visceral activities and organs (circulation, digestion, respiration and temperature). ANS has two divisions: sympathetic and parasympathetic nervous system.Parasympathetic nervous system regulates homeostasis via the release of acetylcholine (Ach). Parasympathetic nervous system is responsible for energy conservation and relaxation.

There are three stages in the stress response: immediate effects of stress, intermediate effects of stress and prolonged effects of stress.

7 0
3 years ago
What colors can a turtle see
amm1812
Near-Ultraviolet, Violet, blue, green, and yellow
8 0
3 years ago
The students are performing an experience that involves chemicals.
n200080 [17]

Answer:

your answer will be D. wearing approiate labotary attire

Explanation:

The student clearly has no gloves on may hurt themselves doing the lab teacher should've had told the kids the rules and what to expect and what to do

4 0
3 years ago
Read 2 more answers
These are fossils of a fish (vagrant pelagic vertebrate; sample a), and a coral (sessile benthic cnidarian; sample b). in genera
densk [106]
The coral fossil would be a better estimate of past water depth. This is because most corals inhabit shallow water reefs, less than 150 feet deep. In contrast, pelagic fish may inhabit any open water (pelagic) part of the ocean, with depths ranging anywhere from a couple of hundred feet deep to miles in depth.  
6 0
3 years ago
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