Manatee mortality rates have been studied extensively to determine the greatest threats to their populations and to develop protection plans. the table below shows fractions of mortality due to various causes based on data from salvaging manatee carcasses from 2001 to 2009. based on the table below, what would be the most effective regulations to introduce to protect manatees in this region? manatee mortality rates by cause cause adult mean % of mortality calf mean % of mortality watercraft 0.54 0.36 marine debris 0.03 0.02 regulations to enforce no wake zones for boats regulations to prevent excessive runoff regulations to penalize littering regulations to reduce carbon emi

Illustrate, label, and explain how atmospheric carbon and oxygen find there way into a consumer and then back into a producer. include the following terms in your illustration: co2, 02, respiration, photosynthesis, sugar, mitochondria, chloroplast, water, solar radiation

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.

Which describes a grizzly bear’s habitat?