Answer:
The second one is correct
Explanation:
A leukocyte is responsible for the immune system
Pretty sure it would be A it makes the most sense
Etioliation means that you water plants that are planted in an area with little to no sunlight. This results in weak stems, smaller leaves, yellow color, etc. The seedlings that are grown in the dark are known as "skotomorphogenesis." Etiolation comes from something called "Auxin's" and Auxin's are moved from the top of the plant to the bottom which creates lateral buds. Typically, etiliation results in the chances being raised for the plant to receive sunlight but causes underiable symptoms.
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Answer:
Scientists use a system like this to group living things. the grouping are based on common traits. this system helps scientists to study the million of organisms of new organisms are discovred each year
This is your answer...
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