The transmission of genetic characteristics from parent to offspring is called?
What will be an ideal response?
heredity
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Radioactive ____ is commonly used to treat patients with dangerously overactive thyroid glands
a. carbon b. radium c. iodine d. thallium e. cobalt
The columns in Figure 15-3 represent F (for female), C (for children), and M (for male). The presence of the band marked with arrow #1 shows that:
a. this DNA sequence was inherited by both children from their father.
b. this DNA sequence was inherited by both children from their mother.
c. this DNA sequence was inherited by only one child from the father.
d. this DNA sequence was inherited by only one child from the mother.
e. individual M is not the father of these children.
Which description best fits that of an open circulatory system?
A. The heart pumps blood across gills and then into tissue spaces that are enlarged into saclike sinuses. B. Gases diffuse across a cutaneous membrane and then move into tissue spaces that are enlarged into saclike sinuses. C. The heart pumps hemolymph into tissue spaces that route the fluid across the gills for gas exchange. D. The heart pumps hemolymph into tissue spaces that are enlarged into saclike sinuses.
Influenza differs from the common cold in that
A) it has a greater fatality rate. B) the virus is not subject to mutation. C) it can cause seasonal outbreaks. D) it is not treatable with antivirals. E) you can get only get influenza once.