Which statement describes an introduced species?

A. It is a poor predator.

B. It increases stability of a community.

C. It has been moved to a new area.

D. It has no permanent home

What behavioral effect may have occurred as humans began to select for tameness? A. Dogs became more independent. B. Dogs lost their instinct to live in packs. C. Dogs no longer worked in cooperative groups. D.

What is the most likely cause of the change in population size in year 6 shown in the graph below? a. An increase in the amount of land available b. A decrease in the amount of land available c. A cold spring d. A hot summer

Which statement best describes a difference between electromagnetic waves and mechanical waves? a. mechanical waves can transfer matter through empty space. b. electromagnetic waves vibrate in two directions that are perpendicular to each other. c.

Over time Pangaea broke apart to form continents. Which modern day continents composed Gondwanaland?

A compound is made of:

Why do you think scouts could hear better through the solid ground rather than through the air?

What is an aftershock

The Hawaiian honeycreeper has a highly evolved, mutualistic relationship with the Hawaiian silversword, a native plant that grows on beach front cliffs and dunes.

Which of the following components of the blood contains antibodies? A. red cells B. white cells C. platelets D. plasma class - forensic science

Why do the atoms in the top rows in the Periodic Table have higher electronegativity than atoms in lower rows? The electrons of those atoms are farther from the nucleus. The electrons of those atoms are closer to the nucleus.