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Whitepunk [10]
3 years ago
14

Because plant cells contain both mitochondria and chloroplasts, but animal cells only contain mitochondria, it is thought that e

arly cells gained mitochondria first, before chloroplasts.
True / False.
Biology
1 answer:
Fantom [35]3 years ago
5 0

Answer:

Chloroplast is crucial for photosynthesis not mitochondria...

Explanation:

Chloroplast isn't found in animal cells not because of it's evolutionary choice but because of it's rather different way of energy production. Chloroplast is modified by nature to produce energy using photons or photosynthesis that can only occur in plants but mitochondria does not used photons. It utilizes electron transport chain strategy instead.

Animals would never be able to make their surfaces photosensitive for photosynthesis to occur and produce energy with the help of chloroplasts.

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Which statement best describes a scientific theory?
Liono4ka [1.6K]

The statement that describes a scientific theory is as follows: Jose explained that all planets orbit around the sun in an elliptical path (option A).

<h3>What is a scientific theory?</h3>

A scientific theory is a coherent statement or set of ideas that explains observed facts or phenomena and correctly predicts new facts or phenomena not previously observed.

A theory can also be described as a statement that sets out the laws and principles of something known or observed, in other words, a hypothesis confirmed by observation, experiment.

According to this question, the fact that all planets orbit around the sun in an elliptical path is a scientific theory because it has been tested and confirmed to be true.

Therefore, the statement that describes a scientific theory is as follows: Jose explained that all planets orbit around the sun in an elliptical path.

Learn more about scientific theory at: brainly.com/question/2375277

#SPJ1

3 0
1 year ago
Where are the two processes that result in rocks begins done into smaller pieces ?
NISA [10]
When it get smashes hard on the ground.
8 0
3 years ago
The fluid-mosaic model of membrane structure includes the following: A Option A: a lipid bilayer. B Option B: membrane proteins.
Mila [183]

Answer:

Option D

Explanation:

In 1972, the fluid mosaic model was proposed by S. J. Singer and G. L. Nicolson to describe the structure of the plasma membrane found I living cells. The model describes the plasma membrane to possess components including phospholipid, proteins and cholesterol.

The phospholipid is arranged in two layers comprising of glycerol, two fatty acids and a phosphate group. The fatty acids which forms the tail are hydrophobic (water-fearing) while the phosphate group is water-loving (hydrophobic) giving the plasma membrane an AMPHIPATHIC nature. The other component as proposed by the model are membrane proteins and cholesterol, all responsible for the fluidity of the membrane.

4 0
3 years ago
What evidence must be considered when determining whether or not a trail is adaptation?
Dmitry [639]
An adaptation is a trait that "evolved" for a particular condition that allows the animal to survive. Something is adaptive if it is a useful trait but not necessarily one that occurred in response to a particular selection pressure. Basically a trait is an adaptation if it is the product of selection, and adaptive if it is beneficial in the present time.

Read more on Brainly.com - brainly.com/question/1946228#readmore
4 0
3 years ago
Read 2 more answers
A scientist studied four fossils of a marine mammal dating back to 50 million years, 45 million years, 40 million years, and 30
Anastasy [175]
The 30 million years ago, because its the  closest one to us. Wait is there a picture to it ?
7 0
4 years ago
Read 2 more answers
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