You are studying a population of lemurs that live in a rainforest that covers thousands of acres, along the Urubamba river in South America. They feed on fruit and nuts scavenged throughout the abundant rainforest. Recently, industrialization has caused factories upstream to begin polluting the river. In your studies you have noticed their population is beginning to decrease. Which of the following limiting factors are affecting the carrying capacity? I. Space II. Food availability III. Water IV. Environmental conditions A. III and IV
B. I, II, III, IV
C. I and II
D. II and III

The diagram illustrates the activity of vesicles during a cellular process.

Ineed to know why d is the correct answer asap

Aresearcher designed an investigation to test what effect eating different types of food would have on blood insulin levels. she selected 10 male subjects who were all 25 years of age and in good health. the experiment took place over 3 days. at 8: 00 a.m. on each day, the subjects ate a meal consisting of only 1 type of food. they had their blood insulin levels measured after consuming the meal. on day 1 they ate a high fat diet, on day 2 they ate a high protein diet, and on day 3 they ate a high sugar diel what is the independent variable in this experiment? a the age of the subjects b the blood insulin level c the type of food consumed d the time of day the meal was consumed