The biological 'job' of shrimp in the ocean is to feed on organic matter such as dead sea grass, bacteria, and dead fish. on land, cockroaches feed on dead leaves, garbage, and other refuse. which is the most accurate statement about shrimp and cockroaches?

a) both animals are detrivores, and they fill the same niche in different environments.
b) both animals are detrivores, but they fill different niches in different environments.
c) the shrimp is a decomposer, while the cockroach is a detrivore. they have the same
niche in different environments.
d) the shrimp is a detrivore, while the cockroach is a decomposer. they have different
niches in different environments.

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.