Which statement best describes the amount of catalyst that remains at the end of a reaction?
a. more catalyst is present at the end than at the beginning of the reaction.
b. less catalyst is present at the end than at the beginning of the reaction.
c. the amount of catalyst is the same at the end as at the beginning of the reaction.
d. the catalyst is consumed by the reaction, so none remains at the end of the reaction.

Which description shows competition in an environment? an organism that feeds on some food an organism that finds a place to sleep three organisms of the same species living in an area three organisms battling over limited resources

Two pea plants with yellow peas are crossed. most of their offspring have yellow peas, but about 25 percent of the offspring have green peas. for pea color, yellow is the dominant trait and green is the recessive trait. what does this tell you about the two parent plants? a. the parent plants have only dominant alleles for pea color. b. the parent plants are heterozygous for pea color. c. pea color follows an incomplete dominance pattern of inheritance. d. the parent plants are homozygous for pea color.

The term autotroph refers to an organism that: a. uses co2 for its carbon source. b. must obtain organic compounds for its carbon needs. c. gets energy from sunlight. d. gets energy by oxidizing chemical compounds. e. does not need a carbon source