is an important component of cell membranes, forming a lipid bilayer by orienting the water-soluble portion towards the water environment. Group of answer choices Cholesterol Phospholipid Triglyceride Saturated fatty acid

Assume that a student is given two different models of bacteria, with one model consisting of big bacteria and the other consisting of small bacteria. how can the student demonstate the theory of endosymbiosis using the models

Environmental impacts on evolution : mastery test

Suppose you have monohybrid pea plants in your garden and find that they produce round seed to wrinkled seeds in the ratio of 3: 1. if the allele are designated (r & r) receptively. what is the probable genotypes of the round seeds which produced f 1 ? rr & rr rr only rr & rr rr only rr only