Which of these are characteristics of reptiles? Check all that apply.

They undergo internal fertilization.

Their urine is concentrated.

They use their skin for gas exchange.

They have two-chambered hearts.

They are covered in scales.

Which statement best describes the primary difference between scientific investigation and technological design?

Diferencias entre células: haploide y diploide

Nucleic acids - dna or rna. chemically, they are similar. structurally, there are differences. which formula represents dna? a. b) c. eliminate d)

How does the warming of the world's ocean affect the water cycle? A. It decreases the rate of transpiration B. It increases the amount of precipitation C. It increases the amount of pollution D. It decreases the rate of evaporation

1. Identify three different types of consumers. Name an example of each type.

Describe how the granite of a mountain could change first into sandstone and then into quartzite.

What where the conditions like on early earth

Identify the term that describes what happens to blood vessels when an animal is exposed to higher environmental temperature: a. vasoconstriction b. vasodilation c. none of the above d. all of above

Lipids are diverse compounds that are grouped together because they are

Enzymes are a type of protein that tend to slow down chemical reactions. a. True b. False