The formation of new species over many generations is an example of:

A) gene pools. B) macroevolution. C) allelic variants. D) microevolution.


Answer: B

Biology & Microbiology

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The study of antigen-antibody reactions is known as

A) serology. B) immunology. C) toxicology. D) epidemiology.

Biology & Microbiology

A new plant species is introduced to Daphne Major and produces small, thin seeds. This plant species is highly adapted to drought and after 5 years has replaced over 80% of the native plants that produce large seeds. How will this change affect the evolution of beak size in the medium ground finch population?  

A.  Small beaks will be favored under all rainfall conditions. B.  Small beaks will be favored in wet years and large beaks will be favored in dry years. C.  Large beaks will be favored in wet years and small beaks will be favored in dry years. D.  Large beaks will be favored under all rainfall conditions.

Biology & Microbiology

The entrance into the cavity formed during gastrulation in sea stars and frogs is called the

a. archenteron. b. blastocoel. c. blastocyst. d. blastopore.

Biology & Microbiology

Four of the five choices listed below can help a plant

wall off threats. Select the exception. a. centralized mechanisms b. phenols c. resins d. compartmentalization e. defensive compounds

Biology & Microbiology