What structure, in the human body, performs similar function as sieve tube?

A patient has a condition where the exit of urine from the kidney is blocked, resulting in backup of urine and distension of the renal pelvis. the medical name for this condition is

How might an omnivore be a link both at the beginning of a food web and near the end?

Explain the differences between the thalamus, hypothalamus, and epithalamus?

How are the organelles of a single cell like the organs of a multicellular organism?

Hen there is a cut in the skin and bacteria enter the body, the immune system responds. First, macrophages approach the area of the cut. Next, the macrophages surround any bacterial cells and engulf them.

How are photosynthesis and chemosynthesis similar?

During which trimester is the fetus most susceptible to the detrimental effects of alcohol on its development? a. first b. second c. third d. risk is equal during all stages of development.

Which of these hormones prods the thyroid gland to release thyroxine?

What is the importance of the excretory system?

Which sections in mature rna do not code for amino acids?