Vascular plants, such as pine trees, are usually much larger than non-vascular plants, such as mosses. Which of the following is the best explanation for this difference? Question 9 options:

Vascular plants can only transport watera from one cell to the next cell.

Non-vascular plants can transport water and food in tube like structures called xylem and phloem.

Vascular plants can transport water and food in tube like structures called xylem and phloem.

Non-vascular plants transport water only in their roots.

2. how does the miller-urey experiment fall short of demonstrating that life can arise from inorganic molecules? explain. a. it doesn't show a leap between a collection of amino acids and a single-celled organism. b. it recreates the conditions that existed at the earth's beginning, but no molecules form as a result. c. it doesn't provide evidence of the formation of amino acids. d. it doesn't show how multicellular organisms developed from unicellular organisms

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

Which direction does the energy flow in this energy pyramid ?