What is thought to have caused the extinction of the dinosaurs?

1, Ice ages

2. Increase in oxygen

3. Asteroid that hit Earth

4. Rising sea levels

A chemical has been found to harm the same components in both prokaryotic and eukaryotic cells. witch components are those?

Compare renewable and nonrenewable energy sources and discuss the effects of each on biodiversity?

The Impact of the Corona Virus

What type of epithelial tissue forms the walls of the alveoli?

Which is the correct explanation for 30°S latitude? A. All positions along a circle that runs parallel to the equator and 30° north of it. B. All positions along a circle that runs parallel to the equator and 30° south of it. C.

Autopsy on a stillborn fetus reveals cardiomegaly, hepatomegaly, edema, and ascites as well as fulminant intrauterine congestive heart failure. Considering these findings, what is the most likely cause of death? a. Alpha thalassemia minor b.

Which of these structures are found in both plant and animal cells? cell wall, mitochondria, ribosomes mitochondria, ribosomes, vacuoles vacuoles, chloroplasts, cytoplasm cytoplasm, cell wall, vacuoles

Each dna strand in a double helix contains all the information needed to make a new identical double helix.

What do biologists use to establish whether or not two organisms are the same species

The moon travels around Earth at a speed of about 1 km/s. Which of the following keeps the moon in orbit around Earth?