The type of photoreceptor that is more concentrated in the center of the retina, allows for color vision and responds to bright light is called a ________ cell.

Fill in the blank(s) with correct word


Answer: cone

Biology & Microbiology

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Which of the following is considered the key innovation that started chordates along the evolutionary path that led to vertebrates? 

A. a flexible rod to which muscles are attached, which allowed lateral movement of the back B. an internal endoskeleton C. a skin covering the entire body to prevent desiccation D. a hard shell encasing the body E. amniotic egg

Biology & Microbiology

The highest incidence of histoplasmosis in the United States occurs in the ________.

A. southwest B. southeast C. northeast D. Rocky Mountains E. east and Midwest

Biology & Microbiology

Salivary amylase will begin the digestion of ________ in the ________

a. starch, stomach b. fats, mouth c. starch, mouth d. starch, small intestine e. fats, stomach

Biology & Microbiology

Sulfa drugs work on

A. ribosome biosynthesis. B. folic acid biosynthesis. C. nucleic acid biosynthesis. D. peptidoglycan biosynthesis.

Biology & Microbiology