What is the most inclusive level of life's organization?
a. a niche
b. the biosphere
c. a population
d. an ecosystem
e. a community
B
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Small regulatory RNAs are known to be:
A. bound by Drosha in the cytoplasm. B. recognized by DGCR8 in the nucleus. C. cleaved by Dicer in the nucleus. D. transported to the nuclease as fully processed miRNA.
Which ion is actively transported to regulate pollen growth and fertilization?
a. hydrogen b. potassium c. sodium d. calcium e. magnesium
Mendel’s experiments led to which of the following findings?
a. Traits are inherited as independent events. b. Recessive traits are never physically observed. c. Dominant traits eventually become latent. d. An offspring’s traits are a blend of parental traits.
In some plants, the direction of growth changes in response to contact with an object. This is called __________.
Fill in the blank(s) with the appropriate word(s).