Which forms the outermost whorl of flower parts?
a. sepals
b. petals
c. anthers
d. pistils
e. stamens
a
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Which of the following structures consists mainly of white matter?
A. Corpus callosum B. Cerebral cortex C. Thalamus D. Caudate nucleus E. Broca area
Which of the following best explains why many different species can live together within an ecosystem with limited resources?
(A) Each species lives in a slightly different habitat. (B) Each species occupies a different niche. (C) Each species inhabits a different biome. (D) Each species makes up a different population.
Teratogens affect the ____ more than any other part of the fetal body
a. central nervous system
b. upper limbs
c. heart
d. lower limbs
e. external genitalia
The primary purpose of the Articles of Confederation was to
A: provide tax revenues for the national government B: establish the basic framework of the national government C: give the national government the power to regulate interstate commerce D: establish the supremacy of the national government over the states