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Tpy6a [65]
3 years ago
15

Which kind of exercise helps your heart work more efficiently?

Biology
1 answer:
Nataly_w [17]3 years ago
5 0
Aerobic<span> or </span>cardiovascular<span> exercises are the most healthy for your body when it comes to your heart helps oxygen flow better</span>
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What unit of light stimulates photoreceptor cells in the retina?
wel

Answer:

Photons

Explanation:

The retina is a thin layer (membrane) in the eye that receives light through photoreceptor cells that convert this light into chemical and nervous signals transported to the brain's visual center.

The photoreceptors in the retina are known as rods and cones. Rods detect motion and sare responsible for black and white vision, they are present in the macula. Cones on the other and, are responsible for central and color vision. <em>These photoreceptors absorb photons that trigger the membrane's potential of the cells.</em>

I hope you find this information useful and interesting! Good luck!

8 0
3 years ago
A tax on the amount of CO2 in exhaust from burning gasoline would be an example of a ____.​
Vlad1618 [11]

Carbon tax

<span>Carbon tax is a levy or fee that is collected on the carbon content of fuel.  It is a policy designed to reduce and eliminate the use of fossil fuels whose destroy and destabilize the climate the release of his combustion.</span>

6 0
3 years ago
Read 2 more answers
How can crossbreeding help save a type of crop plant
AleksandrR [38]
<span>By combining it with its wild respective realtive to avoid acquiring diseases. or It can save a crop plant by altering its structure, so it can repel diseases</span>
3 0
3 years ago
If the wild-type codon is ggu, how many single-base substitutions will result in an amino acid substitution? include any changes
SashulF [63]

Answer:

Approximately six

Explanation:

The codon GGU

Single base substitution that will change this codon that codes for glycine to another amino acid includes: a single base substitution in the GGU codon such as GGU- AGU can occur. thus, approximately six single base substitution can take place to change this codon to code for another amino acid. A single base substitution cannot change the codon to a stop codon unless it happens twice or there is more than a single base substitution.

4 0
3 years ago
Which of the following best describes REM sleep?
Stells [14]
<h2>Answer:</h2>

Sleep in which the brain becomes more active but muscle activity is blocked.

<h3>Explanation:</h3>

The brain cycles through five distinct phases during sleep: stages 1, 2, 3, 4, and rapid eye movement (REM) sleep. REM sleep makes up about 25% of your sleep cycle and first occurs about 70 to 90 minutes after you fall asleep. Because your sleep cycle repeats, you enter REM sleep several times during the night.

  • During REM sleep, your brain and body are energized and dreaming occurs.
  • REM is thought to be involved in the process of storing memories, learning, and balancing your mood.
  • REM sleep begins in response to signals sent to and from different regions of the brain. Signals are sent to the brain's cerebral cortex, which is responsible for learning, thinking, and organizing information.
8 0
4 years ago
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