Can someone me with this scientific method test.
propose solutions/ hypothesis: temperature determines the rate of spoiling.
select one:
a. 4 - proposes one or more solutions/hypotheses that indicate a deep comprehension of the problem. solution/hypotheses are sensitive to contextual factors as well as all of the following ethical, logical, and cultural dimensions of the problem.
b. 3 - proposes one or more solutions/hypotheses that indicate comprehension of the problem. solutions/hypotheses are sensitive to contextual factors as well as the one of the following ethical, logical, or cultural dimensions of the problems.
c. 2 - proposes one solution/hypothesis that is “off the shelf” rather that individually designed to address the specific contextual factors of the problem.
d. 1 - proposes a solution/hypothesis that is difficult to evaluate because it is vague or only indirectly addresses the problem statement.

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.

This comparative chart is an example of one that might be used by scientists and law enforcement personnel for identification purposes. the chart represents a technological advance called

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?