Only seed plants possess ovules.

a. true
b. false


Answer: a. true

Biology & Microbiology

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In Cameroon, seedcrackers have either small bills (adapted for feeding on soft sedge seeds) or large bills (adapted for

feeding on hard sedge seeds). During competition for scarce resources, these birds primarily feed on the seeds for which they are best adapted. This is an example of ____ selection.

a. stabilizing b. disruptive c. frequent d. directional e. mutational

Biology & Microbiology

David Jablonski and colleagues found that species of bivalves with which of the following trait(s) persisted longer, and were less likely to die out, during times of background extinction?

A) epifaunal, suspension-feeding lifestyle B) wider geographic ranges C) planktonic larval stages D) All of the above. E) None of the above.

Biology & Microbiology

The second round of meiosis in the testes produces ____

a. primary spermatocytes b. secondary spermatocytes c. polar bodies d. spermatogonia e. spermatids

Biology & Microbiology

DNA codes for the sequence of amino acids in the primary structure of a protein, but not for sugars or lipids. This is because

What will be an ideal response?

Biology & Microbiology