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