The __________ reactions convert _____ (B) to sugars

a. Calvin cycle; O2
b. light; CO2
c. Calvin cycle; CO2
d. light; O2


C

Biology & Microbiology

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A paleontologist is studying a group of fossils from its first appearance in the fossil record to its extinction. She determines that the group descends from a single common ancestor and gave rise to no new species

Its appearance is distinct from any other group of fossils. Based on this information, she decides that it is a new species. In coming to this decision, which species concept or concepts is she using? Select all correct choices A. biological species concept B. morphospecies concept C. evolutionary species concept D. ecological species concept E. none of these

Biology & Microbiology

If a given protein’s level peaks early in G1, but is absent before the G2 transition, what can be inferred about its possible role in regulating the cell cycle?

a. This protein inhibits Cdk1. b. This protein activates Cdk1. c. This protein inhibits Cdk2. d. This protein activates Cdk2. e. This proteins is involved in DNA synthesis.

Biology & Microbiology

Viruses exhibit all the following except ________.

A. genes B. ultramicroscopic size C. definite shape D. metabolism E. ability to infect host cells

Biology & Microbiology

Which of the following is not a secondary

sexual trait? a. rounded hips in females. b. deep voice in males. c. facial hair in males. d. rounded breasts in female. e. testes in males

Biology & Microbiology