(earth-space) which statement describes a potential cause-and-effect relationship for earth's climate? a. the continents cluster together, causing the climate to become warmer. b. erupting volcanoes emit carbon dioxide, causing the climate to become cooler. c. the sun becomes less bright over time, causing the climate to become cooler. d. meteors that impact earth throw dust into the atmosphere, causing the climate to become warmer.

Defend or refute the argument that the government has too large a presence in the agriculture industry.

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 of the following shows the results that you would get if you tested beef using the four tests in the gizmo