Crossing over would most likely occur during which stage of the cell cycle?

when DNA is being replicated

when homologous chromosomes line up in pairs

when centromeres are separated

when cytokinesis begins

Predict what would happen to a plant with a genetic defect that produced no central vacuole.

Which factor can cause secondary succession? A) clear cutting B) glacial melting C) competition D) predation

How many miles of blood vessels are in the body?

Satellites are important to oceanographic research because they can quickly survey the surface of the earth. True False

Tubular reabsorption: a) involves the movement of a substance from the peritubular capillary blood into the tubular fluid. b) involves the movement of a substance from the tubular fluid into the peritubular capillary blood.

Which statement is NOT true about subatomic particles? a. Protons are found in the nucleus. b. Neutrons have no electrical charge. c. Electrons contain much less mass than neutrons. d. Electrons are found in orbitals around the nucleus. e.

Witch came first the chicken or the egg

Which of the following genotypes could be described as homozygous dominant

Name some proteins that are made at ribosomes.

Which describes organs in the human body? the largest living unit a group of cells that work together to perform a common function a group of tissues that work together to perform a common function the smallest living unit