Which of the following is an ultimate question in regards to animal behavior?
A. Why do parents risk their lives for those of their offspring?
B. How do crows know to work together to attack a great horned owl?
C. How does a male songbird learn the songs that attract females of his species?
D. How does the nervous system translate instinct into action?
E. When does a human male develop a deep voice?
A. Why do parents risk their lives for those of their offspring?
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Which of the following major tissue types can transmit electrical impulses from one part of an
organism to another?
a. epithelial tissue b. connective tissue c. muscle tissue d. nervous tissue e. adipose tissue
Iron-response elements are part of the untranslated regions of mRNA and regulate gene expression through ________ control
Fill in the blank with correct word.
Some enzymes have a receptor site that is other than the active site. This is also referred to as a(n) ____ site
a. sensitive b. allosteric c. inhibitive d. reversible e. competitive
The photosynthetic systems of algae living in deeper water are adapted to absorb more of the light of which of the following colors?
A. white B. blue-green C. yellow D. red-orange E. purple