Evidence shows that the earliest life may have existed how long ago?
a. 2 billion years ago
b. 3.5 billion years ago
c. 1.3 billion years ago
d. 630 million years ago
e. 250 million years ago
b
Biology & Microbiology
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Recall that in many plants, if the shoot apical meristem is removed, axillary buds become active and new lateral branches form. What is this an example of?
A. auxin dominance B. axillary dominance C. meristem dominance D. apical dominance
Biology & Microbiology
Viruses that infect bacteria are
A. prions. B. not known to exist. C. composed of protein only. D. bacteriophages. E. also capable of causing disease in humans
Biology & Microbiology
Explain the function of ATP in muscle contractions
What will be an ideal response?
Biology & Microbiology
Albinism is due to the inability to make ________
A) collagen B) tyrosine C) melanin D) hair
Biology & Microbiology