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saw5 [17]
4 years ago
11

Name another genetic variation among humans that might be an adaptation to the environment

Biology
1 answer:
klemol [59]4 years ago
5 0

Answer:

skin color

Explanation:

Skin color can help for an individual to adapt to some environmental conditions , some skin color adapt well to harsh weather conditions like harsh pressure of sunlight and cold.

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Why does the body attack a transplanted organ?
Alexxx [7]

Answer:

A body attacks a transplanted organ because it does not recognize it as being made of self cells. It knows this because the new organ has antigens, a form of proteins that coat the organ. When a body's immune system recognizes these antigens and they are not similar enough to the body's own antigen's, it attacks to try and keep itself safe and healthy.

Explanation:

6 0
3 years ago
During which of the following phases of the cell cycle is the nuclear envelope present? Choose all that apply.
cupoosta [38]

Answer:

-S-phase

-Late telophase

Explanation:

The cell cycle is divided into two main phases: interphase and mitotic phase.

Interphase is phase characterized by the the cell growth and DNA copy (replication). During this phase, the cell prepares for division (mitotic phase).

Mitotic phase is subdivided into four phases: prophase, metaphase, anaphase and telophase. At the end of prophase, nuclear envelope breaks down and condensed chromosome (DNA structures) are released.

During the late telophase, nuclear envelope is reformed.

7 0
4 years ago
What is Eukaryotic cell
just olya [345]

Answer:

Eukaryotes are organisms whose cells have a nucleus enclosed within membranes, unlike prokaryotes, which have no membrane-bound organelles.

Explanation:

6 0
3 years ago
Read 2 more answers
A cell with 46 chromosomes inside
Sholpan [36]

Answer:

46

Explanation:

Mitosis is a type of nuclear division that forms two new nuclei from a single parent nucleus. The newly formed nuclei have the same number of chromosomes as that of the parent nucleus. Mitosis is followed by cytokinesis which is the division of cytoplasm. By the end of one round of mitosis followed by cytokinesis, one parent cell give rise to two genetically identical daughter cells.

Therefore, if a cell with 46 chromosomes goes through one round of mitosis and cytokinesis, the nucleus of each of the two daughter cells would have 46 chromosomes.

4 0
4 years ago
All plants go through a process known as photosynthesis in which they make glucose as an energy source. Plants are able to compl
Firdavs [7]

These organelles are Chloroplasts.

Explanation:

  • Chloroplast is a plastid present in plant cells.
  • These contain stacks of thylakoid forming Grana.
  • Each thylakoid contain green pigment called chlorophyll that traps sunlight to carry out photosynthesis.
  • Chloroplasts is a double membrane bound organelle having its own DNA.
  • Chloroplasts are considered as one of the organelles that originated as a result of endosymbiosis of photosynthetic bacteria.
3 0
4 years ago
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