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Helga [31]
4 years ago
15

Many scientists hypothesize that the development of organisms with which ability led to the collection of oxygen in earths atmos

phere
Biology
1 answer:
alekssr [168]4 years ago
4 0

The correct answer would be photosynthesis

Why? - oxygen built up in the atmosphere after prokaryotes became autotrophic or became able to use photosynthesis.  

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A man and a woman have three children, all males. What is the probability that their next child will be a girl?.
ikadub [295]

Given what we know, we can confirm that the couple in question has a 50% chance that their next child will be a girl.

<h3>Why are the odds 1/2 ?</h3>

This has to do with the fact that each child that the couple has is an independent event. While it is true that it is unlikely for the same event to occur many times in succession, the previous events do not influence the outcome of the next child.

Therefore, given that a child can be either male or female when born, the couple in question has a perfect 50% chance for their next child to be a girl.

To learn more about probability visit:

brainly.com/question/11234923?referrer=searchResults

5 0
2 years ago
A cell that is placed in distilled (plain) water will swell up because it fills
pav-90 [236]

Answer:

If a cell is placed in a hypotonic solution, water will move into the cell. This causes the cell to swell, and it may even burst. A hypertonic solution means the environment outside of the cell has more dissolved material than inside of the cell. If a cell is placed in a hypertonic solution, water will leave the cell.

Explanation:

I hope this helps! ^^

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7 0
3 years ago
Which level of biodiversity involves the variations within multiple populations across an area? ) A)genetic
Allisa [31]

The answer would be ecosystem

6 0
3 years ago
Read 2 more answers
The major buffer in blood is composed of the weak acid carbonic acid (H2CO3) and its conjugate base, bicarbonate ion (HCO3 - ).
tatuchka [14]

Answer:

The increase in the amount of  carbon dioxide in in blood will lead to respiratory acidosis

Explanation:

Carbon dioxide in its normal level between  38 to 42 mm Hg plays vital roles in the human body like regulating the PH of the human blood, breathing regulation and other things. If the amount of carbon dioxide is high more than the range level, it will cause what is called respiratory acidosis.

Respiratory acidosis is a situation in cause by decrease in ventilation i.e Oxygen level leading to increase in carbon dioxide and drop in PH level of the blood.

6 0
3 years ago
When an organism has a trait that is favorable to environment what does that mean?
dolphi86 [110]

then it means that they have a survival trait or otherwise known as an inherited trait for survival .. since animals do not have warm houses like us they need to develop fur or something else which means that the skill that is favorable to the environment is an inherited trait

plz mark brainliest

3 0
4 years ago
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