Jessica rides an escalator that moves her upward at constant speed. As Jessica rises, how do her
gravitational potential energy and kinetic energy change?

Gravitational potential energy increases and kinetic energy remains the same.

Gravitational potential energy decreases and kinetic energy remains the same.

Gravitational potential energy increases and kinetic energy decreases.

Gravitational potential energy decreases and kinetic energy decreases.

What evidence did mendel find that supported his law of independent assortment? a. dominant traits are expressed when there is a dominant allele. b. traits do not affect the inheritance of other traits. c. some traits have three or four different alleles. d. plants and animals can both reproduce sexually.

Aresearcher has developed two stains for use with seed plants. one stains sporophyte tissue blue; the other stains gametophyte tissue red. if the researcher exposes pollen grains to both stains, and then rinses away the excess stain, what should occur? a) the pollen grains will be pure red.b) the pollen grains will be pure blue.c) the pollen grains will have red interiors and blue exteriors.d) the pollen grains will have blue interiors and red exteriors.

Are salt and soap nutrients or toxins for yeast? explain.