It reduces the amount of harmful rays released by the sun and It increases the levels of carbon dioxide in the air.
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In order to conduct a research you should have an dependent variable, independent variable and the control variable. so in order to study phototropism, then you should need sun light and the growth of the plant and you must have a control that why you need a dark room.
Answer:
92.
Explanation:
92 chromatids are visible for humans at prophase stage because the replication of 46 chromosomes occur. When the replication of chromosomes occur, each chromosome is converted into two chromatids so when 46 chromosomes replication occur then it changed into 92 chromatids. So we can say that there is 92 chromatids in humans in the prophase stage of mitosis.
A group of individuals of the same species that interact will find a mate and cross breed and produce a stronger species to survive they're environment. per Darwin's law..
the answer would be d. a start base triplet
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