What happens to pyruvic acid before entering the citric acid cycle?

These cells are part of the domains Archaea and Bacteria. prokaryotes eukaryotes

A group of paleontologists have discovered a new fossil animal resembling a horse with intact DNA in the fossil. The fossil animal is theorized to have a phylogenetic relationship with a horse.

If fertilization does not occur, the uterine lining is shed in a process called

Water and dissolved mineral nutrients enter the plant's vascular tissue extracellularly through the

When a heat wave strikes a region causing more people to run air-conditioning units, electrical demand increases. What needs to be done to meet this increased demand?

How does the biosphere interact with the atmosphere to cause global warming?

What is a common goal of researchers who develop antibiotics and antiviral drugs? A) to kill bacteria B) to prevent infections C) to stop pathogens without harming host cell D) to kill viruses

An offspring forms with genetic input from two parents. What can be known about the offspring? A. It is an animal. B. It was produced through sexual reproduction. C. It is a bacterium. D. It was produced through asexual reproduction.

Which of the following could be both a natural and a human cause of succession?

The largest level of organization in living things is a (n)