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katrin [286]
2 years ago
5

Which best explains the inability for life to exist in Earth’s early atmosphere? Select two options.

Biology
2 answers:
topjm [15]2 years ago
6 0

Answer:

Bro we need to see the options.

Explanation:

Options please.

just olya [345]2 years ago
6 0

Answer:

Volcanic eruptions and comet collisions added different gases to the atmosphere.

Explanation:

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C₄ plants differ from C₃ and CAM plants in that C₄ plants _____. a. transfer fixed carbon dioxide to cells in which the Calvin c
lana [24]

Answer:

The correct answer is -transfer fixed carbon dioxide to cells in which the Calvin cycle occurs

Explanation:

In C4 plants the light reaction and Calvin cycle occurs in two different cell that are mesophyll cell and bundle sheath cells. First, the CO₂ is fixed into 4- carbon oxaloacetate by an enzyme PEP carboxylase.  

Then this oxaloacetate is converted into a simpler form called malate. Malate molecule then enters into bundle sheet cell and there it releases one molecule of CO₂. This CO₂ enters the Calvin cycle which results in the sugar formation with the help of enzyme rubisco.

Therefore by releasing of CO₂ molecule by malate in bundle sheet cells, it transfer fixed carbon for the Calvin cycle to occur.

5 0
3 years ago
. What characteristics of this Royal Pedigree fit with the expectations for an X-linked, recessive disorder?
denis-greek [22]

X-linked recessive disorders are typically common in males than in females as seen in the Royal pedigree.

<h3>What are X-linked recessive disorders?</h3>

X-linked recessive disorders are disorders which occur as a result of a mutation in the X chromosome.

X-linked recessive disorders are typically common in males than in females.

Females can be carriers but males are always affected when the mutation is present.

Learn more about X-linked recessive disorders at: brainly.com/question/27084648

#SPJ1

6 0
1 year ago
Which of these is a piece of evidence supporting the theory of evolution?
nikklg [1K]

Answer:

The correct answer is option A.

Explanation:

Emus are flightless birds that are native to the African part of the geological location. It is the second largest bird on the planet that can not fly but run very fast.

They show similarities with their Australian cousin ostriches. Ostriches are found in Australia, these are the largest bird on the planet. These are also flightless birds and run up to 45 MPH.  

Thus, the correct answer is option A.

7 0
3 years ago
Read 2 more answers
How do fish maintain depth in water
GREYUIT [131]

For a fish to be buoyant, or float, it must displace less water or the same amount of water as its own body mass. ... Many fish use swim bladders to help them with quick depth changes. These bladders fill with air to help fish rise or release air so fish can sink, often in conjunction with forward movement.

6 0
3 years ago
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Chain Pickerel is a freshwater fish that is a member of the pike family. Chain Pickerels are found along the Eastern coast of an
Kipish [7]

Answer:

the dissolved oxygen of the water decreases.

the fish need the oxygen for respiration, breathing through their gills.

Explanation:

The salinity decreasing doesn't affect the pickerel, because it's a freshwater fish. no salt needed.

more light penetrating the water just means that more aquatic weed or grasses would grow, giving the pickerel more area to spawn their eggs.

temperature increase in the summer has no affect on the fish, since the spawning happens in late winter.

8 0
3 years ago
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