Endocrine hormones are
A) released from a nerve cell and diffuse across a synaptic gap to influence the target cells.
B) electrical signals that move between adjacent cells.
C) released from gap junctions directly into the cytoplasm of the connected cell.
D) chemicals released by cells into the surrounding extracellular fluid and affect only other nearby cells.
E) chemicals released from certain cells that travel via the blood to target cells.
E
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Although the FOXP2 amino acid sequence is highly conserved, humans have _____ amino acids that chimpanzees don't have. Moreover, individuals with mutations in this gene often have difficulty with _____
A. 2; speech and language B. 4; sight and speech C. 2; sight and speech D. 4; speech and fine motor control of the thumb E. 2; speech and fine motor control of the thumb
Match the following items with the correct phrases.
_______1. The disaccharide found in MacConkey agar. _______2. A pentose. _______3. A disaccharide composed of glucose plus fructose. _______4. Another name for dextrose. _______5. A hexose. a. sucrose b. lactose c. glucose d. ribose e. maltose
CO2 + 6 H2O ? C6H12O6 + 6 O2
Which of the following is FALSE?
a. Water is a reactant. b. C6H12O6 is a product. c. Molecular oxygen is a product. d. CO2 is a reactant. e. Molecular carbon is a reactant.
Nitrogen fixation is the process by which gaseous nitrogen is converted to nitrate
____________________ Indicate whether the statement is true or false.