Jaws and paired fins evolved in early __________. Fill in the blank(s) with the appropriate word(s)


Answer: fishes

Biology & Microbiology

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Mastication is the process of chemically reducing food bulk into smaller particles to facilitate swallowing.

Answer the following statement(s) true (T) or false (F)

Biology & Microbiology

Certain ________ have RNA for their genetic material

A) bacteria B) viruses C) plants D) eukaryotes E) prokaryotes

Biology & Microbiology

__________ prevent fish sperm from fertilizing frog eggs

a. Energetic barriers b. Biological barriers c. Postzygotic barriers d. Ecological barriers e. Prezygotic barriers

Biology & Microbiology

Human cells, with the exception of the gametes, reproduce by mitosis

Indicate whether the statement is true or false

Biology & Microbiology