Which hominid is considered to be the handyman by being the first to use tools?

What will be an ideal response?

Homo habilis

Biology & Microbiology

In a one D process, how many D values would it take to reduce a population of 1010 cells to one survivor?

A. 2 B. 4 C. 5 D. 10

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Biology & Microbiology

The emergence of land plants correlated with the near ____ of the genes that bryophytes inherited from a(n)____

ancestor.

a. doubling; liverwort b. doubling; algal c. tripling; liverwort d. tripling; algal e. quadrupling; algal

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Biology & Microbiology

The infective stage of chlamydia is called the (elementary/endospore/initial) body

What will be an ideal response?

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Biology & Microbiology

The hydrolysis of _____ is an exergonic reaction that drives many endergonic reactions in a cell

A. ATP B. AMP C. cAMP D. oxygen E. carbon dioxide

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Biology & Microbiology