What signals the end of germination?
a. cracking of seed coat
b. root breaks out of the seed coat
c. emergence of shoot
d. shoot rises above ground
e. cotyledon falls off
b
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What is an ecological footprint?
A. The estimate of land and water required to sustain one person B. The ecological damage caused by humans C. The amount of land taken up by cities D. The amount of money required to support a human population
Cytokines
A. play key roles in both specific and nonspecific immunity. B. play key roles in both specific and non-specific immunity and are required for regulation of the immune response. C. are required for regulation of the immune response. D. cause lysis of invading microorganisms.
____________________ T cells secrete interleukins that activate other cells in both the cell-mediated
and antibody-mediated immune responses. Fill in the blank(s) with the appropriate word(s).
Polygenic traits such as height or weight are often influenced by the environment of the organism.
Answer the following statement true (T) or false (F)