In the skin, blood vessels are found in the ________.

A. stratum corneum
B. stratum basale
C. dermis and subcutaneous layers
D. dermis
E. subcutaneous layer


Answer: C

Biology & Microbiology

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Which of the following defines the principle of linkage?

A. Two or more genes that are physically connected on a chromosome B. Genes that are transmitted to the next generation as a group C. The process by which genetic information is exchanged between homologous chromosomes D. All of the answers are correct E. Both two or more genes that are physically connected on a chromosome and genes that are transmitted to the next generation as a group

Biology & Microbiology

An enzyme is thought to optimize the fit

between substrates by restraining and stretching or squeezing them into certain shapes and moving them to the transition state as described by the ____ model of enzyme activity. a. lock and key b. induced-fit c. template d. activation e. conformational

Biology & Microbiology

An example of a habitat preference is shown if an animal will only breed 

A. in the spring. B. after a spring migration. C. at night. D. in a swamp.

Biology & Microbiology

Nitrogen is a __________ in plants.

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

Biology & Microbiology