In certain ecosystem, the number of cheetahs is lower as compared to their prey, gazelles. if the cheetahs disappeared from this ecosystem, then the number of gazelles will increase. this will disrupt the ecosystem of the forest because the gazelles will compete for limited food resources and possibly exhaust them. in this scenario, what type of species are cheetahs?

a. pioneer
b. seral
c. climax
d. keystone

In cattle a single gene with two alleles determines fur color the fur can be red white or roan roan fur has both red and white hair which of the following statements is true a the allele for roan fur color is dominant over red and white fur color b the allele for red fur color is dominant over white and roan fur color c the roan and white alleles are expressed independently of the other d the red and white alleles are expressed independently of each other