Which sentence supports the statement that multicellular organisms are made up of specialized cells the each perform different functions for the body
a. human liver cells make protein that promotes homeostasis that neurons do not
b. different species of bacteria have different shape and structure to cell
c. the dna in cell nucleus of chimpanzees and humans are 98% identical
d. prokaryotes do not have nuclei but they can still carry out the basic functions of life

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.

What type of pollution does household garbage cause

When a gasoline engine burns gasoline, what type of chemical reaction is occurring?