A scientist is observing a eukarotic cell and a prokaryotic cell. Which structure could she only observe in the eukaryotic cell?

What is responsible for holding sister chromatids together after replication? it holds the two chromatids together through g2 and into mitosis?

What is the term for the role of position that is certain species of animal occupies in its environment

A condition of balance or stability within a biological system, maintained by the interaction of physiological mechanisms that compensate for changes is called:

What are the lichens growth forms?

Scientific discoveries

How do I get the answers for the insect identificationusing the dichotomous key?

How do earthquakes, volcanic eruptions, Floods, landslides, Hurricanes, and tornadoes affect the oceans, the land and the environment?

Which are early (prodromal) clinical manifestations of hepatitis? a. fatigue, fever, hyperalgia, and vomiting b. light-colored stools, dark-colored urine c. large, tender liver; itching; jaundice d. pain in the left upper quadrant, splenomegaly?

If you were a paleontologist, which species would you expect to find first in the fossil record? a. Horse b. Plant c. Frog d. Shark e. Chicken

What evolutionary traits separate the races of man?