Which of the following adaptations to life on land is found in both insects and modern reptiles?

A.

metamorphosis from a larval form

B.

body surfaces that resist evaporation

C.

tracheae to distribute oxygen

D.

ability to fly

E.

two pairs of walking legs

When rocks break down because of chemical reactions it is called

AlCl₃ What are the valencies of AlCl³?

What are some of the solutes in low-fat chocolate milk?

Convert 35 ml to mm^3

If the mass of the roller coaster cart is 20,000 kg and it is moving toward location X at a velocity of 10 m/s, what is its kinetic energy?

Why sodium chloride is a neutral compound even though it is made up of ions that have positive and negative charges?

A student monitored the reaction rate of a 0.600M sucrose solution, at 25 oC, and determined that the reaction is first order with respect to sucrose. If at 25.0 oC it takes 3.33-hours for the concentration of the 0.600M solution to drop to 0.300M.

Two skydivers jump out of a plane. As the skydivers are in free fall, the potential energy they possessed at the airplane door Is being converted to kinetic energy True False

What part of an atom has no relative mass

A scientist studies the DNA of three different species. The DNA from species A is more similar to DNA from species B than DNA from species C. Which species are probably the most closely related? Explain your answer.