For questions 8–15, match the items to those in the key. Answers can be used more than once.

 

Key:

 

a. carbohydrate

b. lipid 

c. protein

d. nucleic acid

 

Steroids such as cholesterol and sex hormones

This area of the brain is responsible for combining higher-level brain

functions with emotional responses.

 

a. the cerebellum

b. the brain stem

c. the limbic system

d. the prefrontal cortex

e. the diencephalon

When two monohybrid round squashes are crossed, the offspring ratio is ¼ flat to ½ oblong to ¼ round. Squash shape, therefore, is determined by

incomplete dominance. What offspring ratio would you expect from a cross between a squash plant with oblong fruit and one with round fruit?

 

a. all oblong 

b. all round

c. ¾ oblong to ¼ round

d. ¾ round to ¼ oblong

e. ½ oblong to ½ round