Marine plants may contribute to the prevention of algal blooms by:
a. trapping sediments.
b. absorbing excess nutrients.
c. removing toxic organic pollutants.
d. producing detritus.
e. blocking sunlight.
B
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The bile salts _____
A) are enzymes B) are manufactured by the pancreas C) emulsify fats in the duodenum D) increase the efficiency of pepsin action E) are normally an ingredient of gastric juice
Horsetail and ferns are _____ plants
a. multicelled aquatic c. seedless vascular b. nonvascular seed d. seed-bearing vascular
In an adult male, the __________ extends through the inguinal canal
a. scrotum b. ejaculatory duct c. vas deferens d. seminal vesicles e. urethra
When you put your hand on a hot stove, ________ receive signals from sensory receptors or other neurons and ________ conduct nerve impulses.
A. dendrites, astrocytes B. dendrites, axons C. astrocytes, oligodendrocytes D. axons, dendrites E. astrocytes, dendrites