Which of the following is NOT a vascular tissue in a plant?

xylem

phloem

parenchyma

none of the above

Which component of the blood is essential in transporting oxygen to body cells?

Which of these is a biotic factor of an ecosystem? A. the bacteria that live in the intestine of a rabbit B. the rocks that provide cover for a rattlesnake C. the temperature of water in a stream D. the amount of water vapor present in a rain forest

What Nutrients Do Not Have Any Calories?

Why is conserving biodiversity important? Choose all that apply. protecting endangered species protecting habitat diversity maintaining genetic diversity preserving heirloom varieties of food crops

How can the order of three linked genes (a, b, and c. on the same chromosome be determined?

Nucleotide are composed of phosphate group, a sugar, and a nitrogenous base. DNA is made up of long strands of nucleotide. which part if the above molecule can differ between nucleotide? A. the sugar B. the phosphate group C. the nitrogen group D.

What organ system detects stimuli, secretes chemical and electrical signals, and controls all other organs

Which tissue type allows for organ movement within the body

Explain the role of enzymes and how they affect the chemical reactions of living things

Many arthropods young do not look like adults and do not eat the same food as adults. how would this be an advantage in an environment where food is scarce