Within the kingdom Animalia there are about:a
325 phyla.
b. 16 classes.
c. 32 classes.
d. 35 phyla.
e. 6 phyla.
D
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Which of the following elements, when added to a nucleotide base, will create a base analog?
A. Carbon D. Boron B. Oxygen E. Phosphorous C. Bromine
In the stems of plants, where is sugar converted to starch and stored as a food reserve?
A) Mesophyll layer B) Central vascular cylinder C) Parenchyma cells in both the cortex and pith D) Collenchyma associated with xylem cells E) Sclerenchyma
Two muscles working as a team, pulling the same bone but in opposite directions, are termed a(n) ______ pair.
a) antagonistic b) complementary c) mutualistic d) protagonistic
Answer the following questions true (T) or false (F)
1. Water and plasma proteins make up about 99 percent of blood plasma. 2. Because they are cell fragments, not cells, platelets are a component of plasma, not a formed element. 3. Ions in plasma are also known as electrolytes.