Water molecules are cohesive because they
A) form hydrogen bonds.
B) stick to other polar molecules.
C) make up 60% to 90% of an organism's body weight.
D) contain protons.
E) are repelled by nonpolar molecules.
A
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Which of the following is derived from the ground tissue system?
A) root hair B) cuticle C) periderm D) pith E) phloem
Members of the ____ Cnidarian lineageexist primarily as cube-shaped medusae, are active swimmers, and produce
one of the deadliest toxins made by animals.
a. Hydrozoa b. Scyphozoa c. Trematoda d. Cubozoa e. Anthozoa
Which extinct hominin first appeared about 1.9 million years ago and had a larger brain than Homo habilis, its immediate predecessor?
A) Homo ergaster B) Homo neanderthalensis C) Homo sapiens D) Australopithecus
In a healthy individual, glucose that isn't used immediately can be:
A) removed from the body via the urine. B) stored in the short term as glycogen. C) converted to fat for short-term storage. D) converted to protein and used to build muscle. E) incorporated into the sugar-phosphate backbone of DNA.