Which of the following characteristics is used to characterize vertebrates?
a. a bony endoskeleton
b. blood containing hemoglobin
c. a four-chambered heart
d. lungs
e. live birth
A
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Which floral structure is a female reproductive part?
a. anther b. pollen sac c. stigma d. stamen e. filament
Match the terms appropriately
a. nitrogen-containing base, sugar, phosphate group(s) b. copy of an organism c. chromosome that does not determine sex d. DNA wrapped around histones e. fills in gaps, seals breaks in a DNA strand f. two chromosomes copies of each g. adds nucleotides to a growing DNA strand________ nucleosome________ clone________ nucleotide________ diploid________ DNA ligase________ DNA polymerase________ autosome
A renal ______ delivers blood to the kidney for filtration
Fill in the blank(s) with correct word
Nutrients cycle most rapidly with the reservoir pool of a biogeochemical cycle and least rapidly with the biomass pool
Indicate whether the statement is true or false