A(n) ____________ is a stony meteorite that contains no chondrules and no volatiles. They appear to have been melted after they formed and resemble solidified lavas
a. carbonaceous chondrite
b. achondrite
c. breccia
d. Widmanstätten
e. Kuiper belt object
b
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An organism that maintains a constant body temperature is termed:
a. an endotherm. b. an ectotherm. c. a poikiotherm. d. cold blooded. e. an osmoconformer.
When molecules are broken apart in respiration,
a. the heat produced is used to drive biological reactions. b. the oxygen in the compounds that are broken apart is used as an energy source. c. the energy released is channeled into molecules of ATP. d. ATP is converted into ADP. e. ADP is released as a waste product.
The appendicular skeleton is attached to what?
What will be an ideal response?
If a chemical agent acted to make the nuclear envelope pores impermeable to the passage of hormones, what effect would it have?
A. Both steroid and non-steroid hormones would continue to be effective. B. Neither steroid nor non-steroid hormones would be effective. C. Non-steroid hormones would continue to be effective but steroid hormones would be ineffective. D. Steroid hormones would continue to be effective but non-steroid hormones would be ineffective.