Which of the following is necessary for DNA to make copies of itself? 

A. Ribosomes must be present.
B. The cell must have an abundant supply of RNA nucleotides.
C. The two strands of the DNA molecule must separate.
D. Chromosomes must be synapsed.


C. The two strands of the DNA molecule must separate.

Biology & Microbiology

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A population with a large fraction of post-reproductive individuals is common in -developed countries; this population will most likely in size.

A. more; decrease B. less; decrease C. more; increase D. less; increase

Biology & Microbiology

When two or more species depend on the same limited resource for survival, occurs.

A. coevolution B. competition C. succession D. stotting E. symbiosis

Biology & Microbiology

Why did the length of the first leg of the voyage vary so much?

Biology & Microbiology

Explain how becoming a more bipedal organism increased the chances of survival among the genus Homo.

What will be an ideal response?

Biology & Microbiology