Why do scientific theories change over time?

Choose the best answer.

A. new technologies are developed

B. new discoveries are made

C. new research is conducted

D. all of the above

What are four differences between RNA and DNA

1. What is a disadvantage to living in a group? There could be less competition It makes it easier to find a mate There are more individuals to watch out for predators There is an increased risk of parasitism and disease

How is thermal energy within the earths layers of related to some of its natural disasters

Where on Earth are the longest mountain ranges located? A. on the Continental crust B. the western United States and Mexico C. near the centers of the oceans D. lower parts of Antarctica

6. There were originally 32 atoms of a radioactive isotope with a half life of 500 years in a fossil. There are 16 undecayed atoms of the isotone remaining How many years have gone hy?

What can stimulate cell regulators to increase cell reproduction? fragmentation hormones isogametes elongation

Suppose you dissolve 1 gram of solid glucose crystals in 1 kg of water to make a solution. Which calculation would be best to describe the concentration of glucose?

What is an organic acid.

Cómo podemos utilizar correctamente artefactos eléctricos y electrónicos?

Most destruction in an earthquake is caused by - waves