How do the kidneys help maintain constant water levels in the body?
a) by causing people to produce more sweat during hot weather
b) by removing wastes from the blood
c) by storing water in the urinary bladder
d) by reabsorbing water in nephrons
Answer: d) by reabsorbing water in nephrons
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The values (e.g., 80 or 100) noted on the branches of an evolutionary tree reflect:
A. how similar an individual taxa is to the extinct ancestor at the node of the branch. B. how similar an individual taxa is to the common ancestor at the root of the tree. C. the confidence the investigator has in the information contained in that branch. D. the percentage of species in that branch. E. the number of genes used to determine the relationship displayed in the tree.
Compare and contrast the life cycles of ferns and flowering plants. Include the elements of alternation of generation they hold in common and differences in the forms of the two generations, and their relative independence and dominance. Test Section: LO3 and 12.4 Key Concept: relationship of life cycles of seedless vascular plants and angiosperms Level: Advanced critical thinking
What will be an ideal response?
________ is required in aerobic respiration, a cellular process that releases energy through the breakdown of organic compounds
Fill in the blank(s) with correct word
In corn and other monocots, a rigid sheath called a __________ surrounds and protects the plumula.
A. coleoptile B. anatomy C. hypocotyl D. radicle E. sporophyte