Biology, 21.07.2019 09:00, gabrielar80
Skeletons of early vertebrates were composed of cartilage instead of bone. which characteristic does cartilage share with notochords? a. it is hard and rigid. b. it is soft and flexible. c. it contracts. d. oxygen can diffuse through it
Answers: 2
Biology, 22.06.2019 01:00, nikoidurrant
Which of the following statements is true? a. there are more chromosomes in an organism than there are genes. b. there are more genes in an organism that there are chemical bases. c. dna is made of sugar, phosphate, and carbon. d. genes are found in specific locations on a chromosome.
Answers: 1
Biology, 22.06.2019 08:40, miguelalvarado3968
What substance acts to prevent sudden ph changes in bodily fluids?
Answers: 2
Biology, 22.06.2019 09:30, preservations
Phosgene is a chemical agent that is formed by decomposition of chlorinated hydrocarbon solvents by ultraviolet radiation. a. false b. true
Answers: 1
Skeletons of early vertebrates were composed of cartilage instead of bone. which characteristic does...
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