Biology, 25.02.2021 14:00 jonellelewis2897
What does biology study?
A. the study of everything starting with molecules and getting smaller
B. the study of the universe outside of earth
C. the study of living things
Answers: 3
Biology, 21.06.2019 23:30
What is the importantence of the carbon and nitretan cycles in the environment
Answers: 1
Biology, 22.06.2019 13:30
How do the sperm cells get from the stigma to the ovules? a. they slide down the petals to the bottom of the flower. b. they travel through pollen tubes. c. they travel along filaments. d. insects carry the sperm cells from the stigma to the ovules.
Answers: 3
Biology, 22.06.2019 21:40
According to the rna world hypothesis, rna acted as the genetic material and catalyzed reactions in ancient cells. what conclusion can you draw from this? a. this implies that dna and proteins aren't essential in cells today. b. this implies that rna can catalyze any chemical reaction that enzymes catalyze. c. this implies that if a cell has a problem with its dna, its rna can compensate for the damaged dna. d. this implies that dna and proteins evolved after rna.
Answers: 2
Biology, 23.06.2019 01:30
Which series lists the correct order of steps of binary fission from first to last? sex pilus connects two cells ® plasmid dna is transferred ® complementary dna strands are created ® cells separate live cells bind to degraded cells ® dna is transported across the membrane ® dna is incorporated into recipient's dna virus infects bacterial cell, new viruses are made ® dna is assembled in new virus ® new virus infects another bacterial cell and transfers dna dna is copied ® dna molecules attach to cell membrane ® cell membrane elongates and pinches off ® two identical cells are produced
Answers: 1
What does biology study?
A. the study of everything starting with molecules and getting smaller
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