Ecosystem that is not considered self sustaining?

In an eight-cell embryo of an organism, the cells of the upper tier are aligned over the cells of the lower tier at a slight angle. Which organism is it likely to be?

Which hormone causes an increased output of enzyme-rich pancreatic juice and stimulates gallbladder contraction to release bile? A. gastrin B. secretin C. cholecystokinin CCK D. gastric inhibitor peptide

A few mold spores land on the skin but do not survive due to the lack of moisture and the presence of oxygen. These spores have been prevented from harming the body by which type of barrier? biological chemical physical mechanical

if micheal jackson changed genders then what would he look and sound like and what would his name be?

Who is smarter men or women or who has more smart people? (i am not a sexist)

What's the mass of a double mint gum?

Which phase of meiosis I is responsible for dividing the cytoplasm? - prophase I - metaphase I - anaphase I - telophase I

Phrase to make it true. 1. Gene regulation is the ability of an organism to control which genes are transcribed.

Which of the following are tenets of the cell theory a. cells are the building blocks of life b. cells all arise from pre existing cells c. cells are the basic living units of structure an function d. all of above

What is incomplete dominance? a. a condition in which both alleles of a gene pair in a heterozygote are fully expressed with neither one being dominant or recessive to the other b.