The energy and time expended constructing and caring for offspring is known as ________. [two words]
Fill in the blank(s) with correct word
parental investment
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Microinsertions and microdeletions often result in ________ mutations
A) auxotrophic B) advantageous C) silent D) frameshift
Neurons that carry messages from sensory receptors to the CNS are
(a) sensory. (b) motor. (c) interneurons. (d) both a and b.
The most likely region of the radio spectrum for communication with other civilizations is the water hole, the part of the spectrum
a. near the radio emission of water. b. near the radio emission of oxygen molecules. c. between the radio emissions of hydrogen and oxygen. d. between the radio emissions of hydrogen and OH. e. near the radio band where water in the Earth's atmosphere strongly absorbs energy.
Answer the following statements true (T) or false (F)
1) Crossing-over occurs in meiosis I and meiosis II. 2) Chromosome duplication occurs between meiosis I and meiosis II. 3) In animal cells, cell division is accomplished by the formation of a cleavage furrow. 4) Daughter cells produced in meiosis are identical. 5) Chromosome duplication occurs prior to both mitosis and meiosis.