A cell shows formation of a contractile ring just prior to cytoplasmic division. Which cell is being observed?

A. Onion root tip cell

B. Leaf cell

C. Human fetal cell

In what situation can a harmful deletion in a chromosome persist in a population? if it is homozygous if a transposon replaces the deleted region if the homologous chromosome lacks the deletion if the deletion is not in the centromere, so it is not

How does a prokaryotic cell know how to reproduce

Which of these groups of animals are endanger? ill give you brainliest. A) dinosaurs B) mice C) sea turtles D) Killer whales

When using the scientific method, which step comes last

For calcium to be absorbed it must bind to a hormone regulated brush border protein called what

What regulates the enzymes present in an organism A. Phenotype B. Genotype C. Proteins D. Carbohydrates

What is the importance of the excretory system?

What are four sources of minerals?

How many organisms depend on the squid as a source of food?

A slow persistent mass movement of surface soil is called