Nonpoint source pollutants include
(a) fertilizers from lawns.
(b) pesticides from farm fields.
(c) soil erosion from construction sites.
(d) all of the above.
(b) pesticides from farm fields.
Biology & Microbiology
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These are the only vertebrates in which blood flows directly from respiratory organs to body tissues without first returning to the heart.
A. Mammals B. Amphibians C. Birds D. Fishes E. Reptiles
Biology & Microbiology
Which muscle is the “calf muscle”?
a. gluteus maximums b. biceps femoris c. gastrocnemius d. sartorius e. quadriceps femoris
Biology & Microbiology
At the most fundamental of levels, differences among life histories are due to differences in the allocation of ________
Fill in the blank(s) with correct word
Biology & Microbiology
The HIV virion attaches to ________ on the surface of lymphocytes
A) IgG B) MHC II C) IL-2R D) CD4 E) CD3
Biology & Microbiology