According to fossil records and recent published observations, two species of leaf-eating beetles (species A and B) have existed on an isolated Island in the Pacific Ocean for over 100, 000 years. In 1964 a third species of leaf eating beetle (species ) was accidentally introduced on the island. The population size of each species has been regularly monitored. What is the independent variable in this experiment? A. Patient A has diabetes because the patient's initial blood sugar levels dropped over time. Patients has diabetes because the patient's initial blood sugar levels increased over time. C. Patient A has diabetes because the patient's initial blood sugar levels increased over time. D. Patients B has diabetes because the patient's initial blood sugar levels decreased over time.

My question says on my assignment. read the following scenarios and decide which of the properties of life are being described. the first one is. katherine stopped on the way to school to grab some donuts. 2. because a dog cannot sweat, it has to pant in order to stay cool. 3. an elephant trun had no bone but 4,000 muscles. i have no idea what i am supposed to anwer. i can't find the answer in my notes or book that i can understand anyway

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom

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.