In seedless plants haploid gametophytes are produced from

Ascientist separates a population of mice into two groups. what would most likely increase the rate of speciation in this population. a. teach the two groups different tricks b. allow the two groups to breed with each other c. put the two groups in different environment d. have the two groups live in identical ecosystems

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.

Which of the following cell structures is significantly different between gram- positive and gram-negative bacteria?