Internal respiration is the transfer of oxygen and carbon dioxide from the lungs to the tissue cells of the body. True or False

Science <33 I will upvote! Which car is accelerating? A) a car that is unmoving B) a car that rounds a curve at a constant speed C) a car that travels in straight line at a constant speed D) a car that is set to a constant speed of 60 miles per hour

Two pure elements react to form a compound. One element is an alkali metal, X, and the other element is a halogen, Z. Which of the following is the most valid scientific claim that can be made about the compound? a. It has the formula XZ2 b.

How does the reaction of iodine with the potato cells?

The spontaneous intermingling of atoms among different substances is accomplished by diffusion. a. True b. False

On a hiking trip, you see a large tree root has grown into the cracks of a rock and caused it to break apart. This is an example of mechanical weathering chemical weathering hydrologic weathering oxidative weathering

The trend for ionization energy is a general increase from left to right across a period. However, magnesium (Mg) is found to have a higher first ionization energy value than aluminum (Al).

A man is about to receive a bone marrow transplant. He is taking pills to suppress his immune system so that: A. his immune system does not attack the transplanted marrow. B. his immune system can recover after surgery. C.

Nickel (ii) chloride dissolves in water to form a light green solution. what ions are present in solution-that is, what is "swimming around" in the aqueous solution? write the formulas

Calcium sulfide forms when calcium loses 2 valence electrons to sulfur. What type of a bond is formed? Select one of the options below as your answer: A) covalent B) ionic

What ability is most valuable for survival in the deep ocean