In a combustion engine, fuel is burned to produce mechanical energy. Which of the following shows that an energy transformation has taken place?

A food label for one of your favorite snacks claims that the food contains only polyunsaturated fats. What can you infer from this claim? Responses A. The fatty acids of the lipid molecules in the food contain more than one double bond. B.

Parasites harbor infectious diseases. What else do parasites do? A. They give organisms a sudden burst of energy. B. They allow the host to stay up longer. C. They steal the host's energy. D. They bring balance to the host's digestive system.

The right answer is glass paper and plastic

Describe the two main stages of photosynthesis in general terms

A rare genetic condition causes dwarfism and immunodeficiencies. Which of the following is the most likely cause of this condition?

A spore that contains a bacterium's DNA and can survive harsh cinditions is a (n) ?

What is back and faward movement (Ear and sound)

The normal pacemaker of the heart is the

How do daughter cells get their dna

The creature in the photograph is a protist, which is composed of only one cell. This means that a protist A) cannot reproduce. B) is a living organism. Eliminate C) cannot survive in water. D) gets energy directly from sunlight.