1: D
2: C
Plants don’t need respiration. Animals need to eat.
Once the DNA of a person has been copied it can be compared to the DNA of other people by using PCR (Polymerase Chain Reaction).
Cladograms have a cladistic characteristic and a phylogenetic tree where it examines and illustrates the evolutionary relationships of organisms. Evolutionary relationships are determined through various models such as DNA, morphology, embryology and others.
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Answer:
Cancer is unchecked cell growth. Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. As a mass of cancerous cells grows, it can develop into a tumor.
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