Which cells are considered immortal?

neurons

blood cells

cardiac muscle cells

stem cells

The solar energy received at each area of the Earth is not the same. This is the driving force for the Earth's. A. rotation B. winds C. tilt D. tides

An infant moves involuntarily when you touch the soles of his feet. such a movement is

A serious eye disease was noticed in the common house finch. After investigation, researchers discovered that the bacterium, Mycoplasma gallisepticum, was found present in the affected birds.

What substance is added during hydrolysis in order to break down food macromolecules?

Why don't we run out of the important gases that we need to stay alive?

Factors like lack of variation and environmental changes can cause a species to fail to survive. This is known as A. conservation. B. evolution. C. extinction. D. mutation.

What are the specialized parts of the phospholipid bilayer, and how do their structures relate to the structure of the plasma membrane?

2. Which statement about cellular respiration is correct? A The process of cellular respiration breaks sugar into simple oxygen and water B The reactants of cellular respiration are glucose and oxygen molecules C The major product of cellular

In which stage of meiosis does the separation of homologous chromosomes occur?

Where was lower egypt located