Evolution

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The opossum, which is native to North America, and the kangaroo, which is native to Australia are marsupials. The fact that both these mammals incubate their immature offspring in a pouch provides evidence that they –

Which condition is essential for natural selection to result in a new species?

Genetic variation can aid in the survival of species when the environment changes. Which of the following is the best example of an organism with a genetic variation that could improve survival chances over time?

Modern frog larvae resemble some primitive vertebrate larvae. This similarity may suggest that primitive vertibrates

Which of the following describes why organisms with good traits or characteristics survive to reproduce?

Genome maps provide the DNA sequences of chromosomes. Some scientists have compared the genome maps of a hedgehog and a sloth. What do these genome maps allow the scientists to determine?

What is the movement of genes into and out of a gene pool called?

Mutations occur because of ______.