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My name is Ann [436]
3 years ago
14

Which of the following could have been components of membranes that covered pre-cells in ancient earth

Biology
1 answer:
Aleksandr-060686 [28]3 years ago
4 0
Nothing because there are no pre cells
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Im pretty sure it’s Respiration do D
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2 years ago
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Because cell walls consist of a cross-linked network of long filaments embedded in a stiff surrounding material, they can be cal
Contact [7]

According to the research, the correct answer is fiber composites. Because cell walls consist of a cross-linked network of long filaments embedded in a stiff surrounding material, they can be called fiber composites.

<h3>What are cell walls?</h3>

It is a network that covers prokaryotic cells and plant cells that is located outside the plasma membrane, helping to form the structure.

In this sense, since it is made up of a network of carbohydrates, phospholipids and structural proteins, and the different cell types of plants can be identified by their characteristics, they can be called fiber composites.

Therefore, we can conclude that cell walls are a network embedded in a matrix composed of carbohydrates and proteins.

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8 0
1 year ago
A researcher investigates a recently discovered species of plant. The plant has vascular tissues and exhibits a sporophyte and a
Anna71 [15]

The plant contains vascular tissue and has an alternation of generation. But, it lacks seeds. So, the plant is a Pteridophyte.

  • Vascular tissues are absent in thallophytes and bryophytes. They are found in pteridophytes, gymnosperms and angiosperms.
  • The sporophyte and gametophyte generation is common in bryophytes and pteridophytes.
  • Seeds are produced in plants that come under the group gymnosperms and angiosperms. The presence of seeds is the main characteristic of these groups.
  • Thallophytes, bryophytes and pteridophytes lack seeds. The reproduction in plants that comes under these groups occurs with the help of spores.

Thus, the recently discovered species of the plant should be classified based on the presence of vascular tissues, gametophytes and sporophytes. As pteridophytes contain vascular tissues, sporophytes and gametophytes and lack seeds, the plant is a pteridophyte

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6 0
2 years ago
What is the value of numC at the end of this loop? numC = 12 while numC &gt; 3: numC = numC / 2 numC =
klio [65]

Answer: 3

Explanation:

Given :

numC = 12

while numC > 3:

numC = numC / 2

Initial value of numC = 12

The condition checks if the value of numC is greater than 12, only then will the statement be executed and the loop isn't altered

numC = 12 is greater Than 3 ;

numC = numC/2 = 12/2 = 6

numC is now 6 ;

numC = 6 is greater than 3

numC = numC / 2 = 6/2

numC is now 3

numC = 3 is not greater than 3 ; hence, loop terminates (condition isn't met)

Hence , numC = 3

3 0
3 years ago
In science, confusion sometimes arises because a term used by scientists takes on a special meaning which conflicts with the use
Alenkinab [10]

Answer:

A way this could be avoided is making sure you learn the differences and gain knowledge about particular terms that may seem alike so that you can avoid making mistakes in conversations.

Explanation:

8 0
3 years ago
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