Which of the following is NOT a factor in a
life history?
a. rate of development
b. age at first reproduction
c. population density
d. life span
e. all of these are factors in a life history
C
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In the context of biodiversity, genetic diversity consists of
A. all the alleles and transcription factors within a species B. the amount of genetic variation that occurs within and between populations C. the amount of genetic variation that occurs in an individual D. the amount of genetic variation that occurs between species E. the amount of genetic variation that occurs within and between species
A man with trisomy 21 could pass Down syndrome to offspring if he
A) produces sperm that have two copies of chromosome 21. B) produces sperm lacking chromosome 21. C) also has Turner syndrome. D) is a carrier of a deletion for chromosome 21.
____ are dome-shaped structures composed of layers of early cells and sediments
a. Meteorites b. Protocells
c. Stromatolites d. Hydrothermal fossils e. Protofossils
How is summation related to IPSPs and EPSPs? What is the difference between temporal summation and spatial
summation? What will be an ideal response?