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suter [353]
3 years ago
10

true or false? harmful rays from the sun, called gamma rays, make up about 10% of the rays that reach the earth

Biology
1 answer:
Crazy boy [7]3 years ago
6 0
I’m not a 100% but I think true
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The reactions of the Calvin cycle do not require light, but they usually do not occur at night. Why?
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Because of photosynthesis <span />
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3 years ago
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PLEASE HELP ME ANSWER I MADE IT WORTH 40 POINTS
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If I am not wrong it should be B and D not entirely sure

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3 years ago
What results from the addition or deletion of nucleotides in any number except a multiple of 3?
eimsori [14]
Addition or deletion of nucleotides in any number besides 3 results in a "frame-shift mutation."
This is because every 3 nucleotides of DNA/mRNA exons codes for a single amino acid in the synthesis of a protein. This triplet codon theory means that if 3 nucleotides are added or deleted then an amino acid will be added or lost, but subsequent codons and amino acids will still be read correctly.
However, if any number of nucleotides other than 3 are added or removed, then the codons following the mutation will be out of "sync," in terms of the reading order.
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8 0
3 years ago
Why do animals have a specialized form of cellular reproduction (meiosis) in addition to the much more common for used for growt
ratelena [41]

This is because the cells we need for reproduction need to be genetically different from those of the rest of the body.

Cellular reproduction

When a mother cell divides into two or more daughter cells, this process is known as cell division.  Cell division frequently takes place as a component of a longer cell cycle. There are two different types of cell division in eukaryotes: a vegetative division (mitosis), in which each daughter cell inherits the genetic makeup of the parent cell, and a reproductive division (gametogenesis), in which the number of chromosomes in the daughter cells is cut in half to produce haploid gametes (meiosis).  In cell biology, the process of mitosis, during which replicated chromosomes are split into two new nuclei, is a stage of the cell cycle. The number of chromosomes is maintained in the genetically identical cells produced by cell division.

To learn more about cellular reproduction refer here:

brainly.com/question/28013772

#SPJ4

5 0
1 year ago
Tropical rain forests have the greatest biodiversity of any type of land ecosystem. How does biodiversity contribute to the sust
Doss [256]

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The higher biodiversity in an ecosystem means that there is a greater variety of genes and species in that ecosystem.

Explanation:

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