Crustaceans generally possess biramous appendages, but what does this mean?
a. Their appendages have two joints.
b. Their appendages are symmetrical pairs.
c. Their appendages have two branches.
d. Their appendages have two chitin layers.
c. Their appendages have two branches.
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What structures in an animal's body would be the primary targets of genes for behavior? Check all that apply.
_____ brain _____ kidneys _____ muscles _____ neurons _____ lungs
Studies that implicate the environment in influencing body weight consider
A) indigenous populations where the people have lived in the same area for thousands of years and tend to all be thin. B) populations that split, with some people remaining in the homeland and others moving to areas where their diet changes dramatically, resulting in weight gain. C) mice bred to be obese that are given different types of junk food. D) SNPs located throughout the genome.
Single-strand binding proteins prevent the hydrolysis of single-strand regions of DNA by nucleases
__________________ Indicate whether the statement is true or false.
Snapdragons have incomplete dominance of the red and white alleles. What will be the phenotypes and ratios of the F2 generation?
a. 50% white, 50% red b. 25% white, 25% red, 50% pink c. 100% pink d. 100% red