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Debora [2.8K]
3 years ago
13

I’m marking as brainliest! Answer the correct answer !

Biology
1 answer:
expeople1 [14]3 years ago
5 0

Answer: B

Explanation: took the test 3 days ago and teacher went over the correct answer and i got it right hoped this helped :) PS: i think its the same test as mine is the second question . In humans, the first seven pairs of rib bones are connected to the sternum (breastbone) by cartilage. Which of the following statements describes the main reason why cartilage is important in these bone-to-bone connections?

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PLEASE HURRY! 15 POINTS!
LekaFEV [45]

Answer:

Power is the amount of work done in a certain period of time.

we also know there is a formula: Power = work done / time elapsed

3 0
2 years ago
Pro life what is it​
Ierofanga [76]

Answer:

opposing abortion and euthanasia.

Explanation:

supporting the belief that it is immoral for a pregnant woman to have the freedom to choose to have an abortion (= an operation to end a pregnancy) if she does not want to have a baby

7 0
3 years ago
Which of the following describes the main role of the electron transport chain in cellular respiration?
Lapatulllka [165]

Answer:

A.it pumps hydrogen ions inside the cell

Explanation:

Principally, the main role of electron transport chain is to maintain the electrochemical gradient of hydrogen ions (H+) inside the mitochondrial matrix. This is the last step in aerobic cellular respiration and performs a series of redox reactions. Overall, it allows accumulation of H+ inside the mitchondrial matrix. This increased gradient or accumulation of hydrogen ions (H+) is essential because H+ would accept the electrons producing during the reactions. Without this, the flow of electron will be stopped because of high  gradient, and production of ATP will not happen as well.

Indeed ETC helps in production of ATP but that is not the main function of electron transport chain rather it is a function of mitochondria.

3 0
3 years ago
Read 2 more answers
Cancer is best described as a rapid growth of cells within an enclosed membrane. tumors that cause death. an infectious disease
kykrilka [37]
Cancer is an abnormal and uncontrolled multiplication of cells.  
<span>Cancer also involves abnormal cell growth with the potential to spread to other parts of the body via blood and to form metastasis. Cancer cells avoid apoptosis (programmed cell death), have the limitless number of cell divisions and promote blood vessel construction. There are more than 100 types of cancers that affect humans with different signs and symptoms and with many different causes. </span>
6 0
3 years ago
Which part of the chromatin compresses it into chromosomes before cell division occurs
marta [7]
Euchromatin is the answer
5 0
4 years ago
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