Small organic molecules that must be provided to bacteria in order for them to grow are called
A. minerals.
B. growth factors.
C. water.
D. vitamins.
B
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____________________ are regions with a particular type of dominant vegetation. Fill in the blank(s) with the appropriate word(s)
Lupus is a disease in which the immune system produces antibodies that attach to various tissues throughout the body, which initiates massive inflammation and tissue death
What type of disease is this, and what sort of treatment may prove effective?
A scientist is investigating a hormone response in rose bush stems by removing the apical meristems of the main stems. What is the most likely result of this experiment and what hormone is responsible?
A. Flowers will turn yellow and fall off under the influence of auxin. B. Lateral buds will develop under the influence of cytokinin. C. New apical buds will develop under the influence of auxin. D. More leaf buds will appear along the main stems under the influence of auxin. E. Larger, deeper roots will form under the influence of cytokinin.
What is the average number of replication forks per DNA replication cluster in a mammalian cell nucleus?
a. 8000 b. 4000 c. 200 d. 40