When gas is changed to a liquid state the gas
What will be an ideal response?
releases energy
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Adaptations
a. are characteristics that arise during an organism's lifetime and that help an organism survive longer or reproduce more. b. occur primarily in the form of useful molecules. c. are characteristics that arise via natural selection and that help an organism survive longer or reproduce more. d. are characteristics that mainly enhance feeding. e. are characteristics that arise during an organism's lifetime and that help an organism survive longer or reproduce more and are characteristics that arise via natural selection and that help an organism survive longer or reproduce more.
Gastrulation in human embryos occurs about ____ after fertilization
a. 5 days b. 2 weeks c. 4 weeks d. 2 months e. 5 months
The X chromosome is
A. larger than the Y chromosome. B. smaller than the Y chromosome. C. the same size as the Y chromosome. D. genetically identical to the Y chromosome. E. larger and genetically identical to the Y chromosome.
In a positive-feedback system where hormone A alters the amount of protein X
A) an increase in A always produces an increase in X. B) an increase in X always produces a decrease in A. C) a decrease in A always produces an increase in X. D) a decrease in X always causes a decrease in A. E) it is impossible to predict how A and X affect each other.