What did the first fishes probably lack?
A) eyes
B) jaws
C) gills
D) fins
Ans: B) jaws
Biology & Microbiology
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Which taxonomic level would contain members that are the most similar?
A) class B) genus C) kingdom D) order
Biology & Microbiology
The tall ferns that we typically see in the tropics and temperate woodlands are the ________
A) sporophytes B) gametophytes C) gametes D) spores
Biology & Microbiology
What two abiotic factors are considered to most affect organisms?
a. fire and water b. the atmosphere and fire c. temperature and fire d. temperature and water e. climate and fire
Biology & Microbiology
What is a possible reason deep-sea animals can be much larger than their surface relatives? a. They acquire more nutrients
b. They need their size for protection. c. They have a longer lifespan. d. Larger sized animals can attract mates easily.
Biology & Microbiology