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viva [34]
3 years ago
9

Genetic variation can arise in a number of different ways the picture below shows an example that occurs during meiosis

Biology
1 answer:
m_a_m_a [10]3 years ago
6 0
C. crossing over This is because each gene have a piece of each other Hope this helped=)

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(31) The rough endoplasmic reticulum (A) has ribosomes bound to it (B) is part of the membrane system found throughout the cell'
worty [1.4K]

Answer:

(D) all of the above

Explanation:

The rough endoplasmic reticulum is part of the endoplasmic reticulum, the other one is known as the smoother endoplasmic reticulum.

1. This rough endoplasmic reticulum is considered rough because it has ribosomes bound to it.

2. Also, it is part of the membrane system found throughout the cell's cytoplasm, even though its density is considered to be higher in some places, such as near the nucleus.

3. It is also is connected to the nuclear envelope or membrane

Some of its functions include

1. It produces antibody in certain leukocytes

2. It produces insulin in pancreatic cells

Hence, in this case, the correct answer is Option D "all of the above."

4 0
3 years ago
Deforestation of rain forests will likely lead to ____.
FinnZ [79.3K]

Answer:

The loss of trees and other vegetation can cause climate change, desertification, soil erosion, fewer crops, flooding, increased greenhouse gases in the atmosphere, and a host of problems for indigenous people.

Explanation:

8 0
3 years ago
Read 2 more answers
What are the 2 differences between prokaryotic and eukaryotic
Papessa [141]

Answer: One difference is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. Another difference is that eukaryotic cells have many membrane-bound organelles while prokaryotic cells have no membrane-bound organelles.

Hope this helps! :)

7 0
3 years ago
What accounts for the movement of water up the veins of a tall tree?
stiv31 [10]
First of all, the cohesive and adhesive properties of the water molecules fascilitate this. Water molecules stick together and with the walls of the vessels, creating a column of water which doesn t break easily. Moreover the xylem vessels of the tree are very narrow increasing the pressure. Finally, transpiration is taking place as water from the leaves evaporate, thus a continuous osmotic gradient is being created, causing water to be drawn up the tree
7 0
3 years ago
Write the balanced equation for the reaction between potassium nitrate and sodium below.
Stolb23 [73]
KCl + AgNO
3

→

KNO
3
+
AgCl

Explanation:
Formulas for the compounds:
KCl
:
potassium chloride (reactant)
AgNO
3
:
silver nitrate (reactant)
KNO
3
:
potassium nitrate (product)
AgCl
:
silver chloride (product)
KCl + AgNO
3

→

KNO
3
+
AgCl

If the compounds are in aqueous solution, then their physical states could be added.
KCl(aq) + AgNO
3
(
aq
)

→

KNO
3
(
aq
)
+
AgCl(s)

3 0
3 years ago
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