Secretion of potassium and ammonium ions occurs mainly in the portion of Figure 48-3 labeled:
a. 2.
b. 5.
c. 7.
d. 9.
e. 10.
D
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Answer the following statements true (T) or false (F)
1. Homologous chromosomes are identical copies of each other. 2. Mitotic cell division is never used by organisms as a means of reproduction. 3. A diploid queen honeybee produce eggs by meiosis. Some of these eggs are never fertilized, while the rest are. These unfertilized eggs develop into haploid male honeybee. This can be an example of sexual reproduction. 4. For any given species, cells in metaphase II of meiosis would contain 2X more genetic material than cells in metaphase of mitosis. 5. The karyotype of a normal human male would show a total of 23 pairs of homologous chromosomes.
Reactions that reach an equilibrium point are reversible
Indicate whether the statement is true or false.
Which part of a root tip is responsible for perceiving gravity?
A. zone of maturation B. zone of elongation C. root cap D. zone of cell division
10,000 kcal of producer could support approximately _____ kcal of tertiary consumer.
a. 1,000 b. 100 c. 10 d. 1 e. 0