Which of these can be described as a system of stars, gases,

dust, and other matter that orbits a common center of gravity?

a. an asteroid

b. a galaxy

c. a nebula

d. a comet

Which statement describes the importance of experiments in science

The atomic number of neon is 10. Therefore, which of the following is correct about an atom of neon? a. It has 8 electrons in its outer electron shell. b. It is inert. c. It has an atomic mass of 10 daltons. d. A and B only e.

Wich is another important benefit of the carbon cycle

He life-threatening condition that may develop during a type i hypersensitivity reaction is called the life-threatening condition that may develop during a type i hypersensitivity reaction is called septic shock. toxic shock. stroke. anaphylaxis.

Which of the following would be carried by suspension? clay large rocks small pebbles silt sand

Protists use cilia to move within their habitat, but ciliated human cells like those in the bronchi are always anchored to one another and to an extracellular matrix; what benefit does cilia provide these cells?

Which of the following concepts promotes development in both piaget's cognitive development in both paigets cognitive development theory and eriksons psychosocial theorory

Brian made this table to organize his notes on changes of state change of state energy change melting gain freezing lose deposition gain condensation lose

What is the name of the type of cell division that occurs in the prokaryotic cell cycle?

Select the correct answer. Why is it difficult for scientists to find fossils from the Precambrian period?