Answer- D.seasonal cycles
Explanation: The seasonal cycles is the earth by hibernating during the coldest times of the year. After 12 months there is a decrease from the cold itself this is also for USATestprep.
B because it looks like the stroma, where the calvin cycle occurs
Cell membrane is like doors and windows!!
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Reproductive and muscular
A pea plant with alleles 'tt' is classified as a homozygous recessive plant. Homozygous stands for two of the same alleles --so this would be either TT or tt. We are able to classify it also as recessive because lowercase letters represent the non-dominant alleles.