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Akimi4 [234]
3 years ago
14

There are over 8.5 million different species identified on Earth.

Biology
2 answers:
Helga [31]3 years ago
6 0

Answer:

No.

Explanation:

Because we haven't explored 80% of the Ocean, and there's most likely more living organisms in that 80% of the ocean we don't know about.

Klio2033 [76]3 years ago
4 0

Answer:

No, because I think there could be more under the core of the earth that we don't know about because we can't go down that far because it is too hot. And like the other person said we havnt explored 80% of the ocean.

Explanation:

Mark brainliest i need the points

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When the cell cycle is interrupted what is the end result
erma4kov [3.2K]

Answer:

When the cell cycle is interrupted, apoptosis occurs.

Explanation:

Opoptosis is also known as programmed death of the abnormal cell. When cell DNA is damaged first it is repaired. If cell DNA cannot be repaired so the cell kill itself. If Opoptosis didn't occurs, then the cell divides with the damage DNA and transfer that damage DNA to the daughter cells which lead to cancer disease. Cancer also occurs when uncontrolled division of cells is done.

8 0
3 years ago
A biologist analyzes the DNA sequences of one gene in three different primates . The biologist finds that primates A and B have
Nataly_w [17]

The question is incomplete as it does not have the option which are:

  • primates A and B are more closely related to each other than either is to primate C.
  • all three primates appeared on Earth at about the same time.
  • either primate A or primate B must be a direct ancestor of primate C.
  • primate C must have been the ancestor of both primate A and primate B.

Answer:

Primates A and B are more closely related to each other than either is to primate C.

Explanation:

In the given question, on the basis of the given information, it can be predicted that the Primate A and B are more closely related to C as the DNA sequences of these two primates are almost similar. The similarity of the sequence suggests that these primates have descended or diverged from a common ancestor.

The DNA sequence of C is different from both A and B which shows that both A and B are different from the C.

Thus, the selected option is the correct answer.

5 0
3 years ago
Read 2 more answers
Which changing external condition triggers the thirst?
loris [4]
Um i think it's lack of water.
5 0
3 years ago
Read 2 more answers
State four factors that influence the heart rate.​
kvasek [131]

Answer:

Emotions and anxiety can raise your heart rate! Unlike an automobile that is purely mechanical, we are not solely governed by working parts. Some days you can “feel” your way to a higher HR.

Body Temperature: If you become too hot or too cold your body senses a thermal stress load. Blood is sent to your skin to enhance heat dissipation to cool you or increases blood flow to warm you. Apparent temperatures (which account for humidity or wind chill) above 70 degress (F) and below 35 degrees (F) will increase your heart rate at least 2-4 beats per minute. Over 90% humidity can equal as much as a 10 beat increase in heart rate.

The terrain. Walk or run uphill and your HR increases. Walk or run downhill and your HR decreases.

Wind. Walking or running with the wind at your back is easy, therefore HR decreases. Walking or running into the wind is more difficult: HR increases.

Dehydration. As you become increasingly dehydrated during a long walk, hike, or run, your blood becomes thicker and waste products build up in bloodstream. Your heart will work harder to maintain constant cardiac output. A fluid loss of 3% of body weight increases pulse rate because of decrease in circulating blood volume.

Diminishing glycogen stores — your muscles primary fuel source. As the fuel depletes, in order to maintain the same walking or running pace, your HR rises.

Insufficient nutrition. HR increases.

Insufficient sleep. HR increases.

Insufficient recovery after a long hike, run, or other hard workout. HR increases.

Recent illness — or — a signal of impending illness. You guessed it!

Medication – depending upon the medication, heart rate can either decrease or increase. Be certain to ask your physician about any medication you are taking and its effects on your exercise heart rate.

Explanation:

I know its alot so I would pick at least 3 for your answer hope it helps

6 0
3 years ago
Which factor explains why coal dust is explosive?
yanalaym [24]
The answer to the question stated above is surface area. 
Coal dusts<span> are fine </span>powdered<span> form of </span>coal, which are formed by crushing, grinding, or pulverizing of coal. They can be created during mining<span>, transportation, or by mechanically handling coal because of its brittle nature.</span>
The surface area of the coal dust explains why it is explosive.
5 0
3 years ago
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