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soldier1979 [14.2K]
3 years ago
14

Which statement explains a difference between a cell wall and a cell membrane?

Biology
1 answer:
lyudmila [28]3 years ago
3 0

Answer:

B cell membranes protect a cell,and cell walls do not

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Match the food item to its nutrient group
ss7ja [257]

Macronutrients can be defined as the compounds which can be found in large quantities in the human diet. Majority of the energy for the functioning of the body is derived from these macronutrients. These includes the fats, carbohydrates, and the proteins.

Micronutrients can be defined as the compounds which are required by the body in small quantities, but they are essential for the proper growth of the body. These includes the vitamins and minerals.

Hence, the given food and the nutrient groups can be matched as follows:

Macronutrients - Carbohydrates, proteins, fats.

Micronutrients - Zinc, calcium.

4 0
3 years ago
This phylogenic tree shows the changes in bacterial species from the ancestral species to the most current split in the modern c
Lilit [14]

Answer:

Speciation results in biodiversity.

Explanation:

This phylogenic tree shows the changes in bacterial species from the ancestral species to the most current split in the modern classification system. This tree supports the theory that <u>speciation results in biodiversity</u>. As we know speciation is the terminal source of the latest species, in a similar way, that modification is the terminal source of genetic divergence within species (and extirpation is comparable to lack of alleles). Inequities in the movements of speciation are therefore expected to provide large scale biodiversity exemplars.

5 0
3 years ago
How do humans cause climate forcing?
Korvikt [17]

Explanation:

Burning fossil fuels, releasing chemicals into the atmosphere, reducing the amount of forest cover, and the rapid expansion of farming, development, and industrial activities are releasing carbon dioxide into the atmosphere and changing the balance of the climate system.

3 0
3 years ago
A dendrochronologist interprets:
katrin2010 [14]
The answer to the question is c) a dendrochronologist interprets tree rings
4 0
3 years ago
Which method(s) can be used to join double-stranded breaks in DNA? (choose all that apply)
Amiraneli [1.4K]

Answer:

Option (a) and (d).

Explanation:

The breaks in DNA molecule may occur due to replication error and oxidizing agent. The double-stranded breaks in DNA can be corrected by Homologous end joining and non homologous end joining.

Homologous end joining is used to repair the DNA present in G2 nad S phases of the cell cycle. The homologous sequences of DNA is used to repair the DNA. Non homologous end joining occurs in the cell present at G0 and G1 phase of the cell cycle. The DNA broken ends are juxtaposed and later rejoin together by DNA ligase.

Thus, the correct answer is option (a) and (d).

3 0
3 years ago
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