Exotic pets, such as lizards and tarantulas, have increased in popularity. these animals are caught in the wild and sold as pets. what are two possible effects this action can have on biodiversity? a it will lead to greater biodiversity in these animals’ native environments. b populations of these animals could decrease in the wild. c it could increase competition among predators of these organisms. d it increases the chances that wild organisms will find an unrelated mate.

Which type of bacterial reproduction is depicted in the diagram?

Mouse liver cells were homogenized and the homogenate subjected to equilibrium density-gradient centrifugation with sucrose gradients. fractions obtained from these gradients were assayed for marker molecules (i.e., molecules that are limited to specific organelles). the results of these assays are shown in the figure. the marker molecules have the following functions: cytochrome oxidase is an enzyme involved in the process by which atp is formed in the complete aerobic degradation of glucose or fatty acids; ribosomal rna forms part of the protein-synthesizing ribosomes; catalase catalyzes decomposition of hydrogen peroxide; acid phosphatase hydrolysis monophosphoric esters at acid ph; cytidylyltransferase is involved in phospholipid biosynthesis; and amino acid permease aids in transport of amino acids across membranes. a) name the marker molecule and give the number of the fraction that is most enriched for each of the following cell components: lysosomes; peroxisomes; mitochondria; plasma membrane; rough endoplasmic reticulum; smooth endoplasmic reticulum.

Works together in the synthesis, modification, packaging, and transport of lipids and proteins