An individual has the genotype tt. He marries a woman who can taste PTC paper. They have 2 kids - one who can taste and one who can't. Based upon this information, what can you say about the mother's genotype?

Of the pollutants that form acids in the atmosphere, which is easiest to reduce? a. sulfur dioxide b. nitrogen dioxide c. ozone d. carbon monoxide

Compare and contrast cladistics and phylogeny. what are their advantages and disadvantages? which is the most useful in understanding how an organism developed into its current form? which concept most strongly supports your opinion about the origin of any given organism?

When a doggo starts to pace around in the same line for a hand full of days. what would that mean?