Communities exist within populations which exist within ecosystems.

a. true
b. false


Ans: b. false

Biology & Microbiology

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Ligaments connect

(a) bones to bones. (b) skeletal muscles to bones. (c) tendons to bones. (d) skeletal muscles to tendons.

Biology & Microbiology

Two genes within an organism that arose from the duplication of a single gene in an ancestor are ________________. 

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

What is the function of the oval window?

a. serves as the opening to maintain equilibrium of fluid pressures b. provides support for muscles that move the middle ear bones c. transitions sound from middle to inner ear d. acts as the ear drum

Biology & Microbiology

The operon segment composed of the gene that codes for a protein repressor is called the ________.

A. regulator B. structural locus C. operator D. promoter

Biology & Microbiology