He haploid generative cell of male angiosperm gametophytes divides to produce two haploid sperm cells. what type of cell division is this?

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

Waves ___ with one another when they travel in close proximity to one another

Why is it important to have a large number of producers and herbivores in an ecosystem

If you believe a giraffe's neck evolved slowly, steadily, and constantly over many generations, which evolutionary theorist would you agree with

Definition of cholesterol

List two characteristics of roughage and concentrates

A boy jumps into a cold swimming pool and his body temperature goes down. His muscles, blood vessels, and nervous system work together to restore his body temperature. Which term best describes this process? A. homeostasis B. hypothermia C. reflex D.

A question about a moral issue A) is answered by examining facts rather than opinions. B) is generally considered a scientific question. C) cannot be answered with scientific methods. D) cannot be debated through discussion.

A train travels 95 kilometers in 3 hours and then 55 kilometers in 2 hours. What is it's average speed?

What would go wrong if a cell did not replicate its DNA before beginning mintosis?