Consider a habitat with prairie dogs, bison, and red-tailed hawks. Another species of hawk that eats prairie dogs, the ferruginous hawk, migrates into
the area. What effect will this change most likely have on the prairie dog and
red-tailed hawk populations?
O A. The prairie dog population will decrease, the red-tailed hawk
population will stay the same, and the bison population will
increase.
B. The prairie dog population will decrease, the red-tailed hawk
population will decrease, and the bison population will increase.
C. The prairie dog population will decrease, the red-tailed hawk
population will stay the same, and the bison population will stay
the same
O D. The prairie dog population will decrease, the red-tailed hawk
population will decrease, and the bison population will stay the
same.

Every compound can be represented by a chemical formula. a chemical formula is the set of symbols showing the elements that make up a compound and their proportions. water’s chemical formula is h 2 2 o. that means a molecule of water contains two atoms of hydrogen and one atom of oxygen chemically bonded. a molecule is a group of two or more atoms bonded together. molecules can range in size from two to thousands of atoms. a molecule of a compound is the smallest unit of that compound. every molecule of water has all the physical and chemical properties of water. that’s because every molecule of water is made of the same elements in the same proportions: two hydrogen atoms and one oxygen! which of the following is a true statement? a every molecule of the same compound will have different properties. b every molecule of a compound has the same proportion of elements. c molecules can be physically separated into smaller units of a compound. d molecules cannot be represented by chemical formulae.

The use of dna as evidence in criminal investigations became possible because of the

Which of these best describes wde by replicating the chromosomes c) the cytoplasm is divided between the two new daughter cells d) the nucleus opens to allow the chromosomes to enter the cytoplasm