Stars may shine brighter or dimmer depending on their age. What else may affect how brightly we see a star's light?

A. distance from the star

B. location of the moon in relation to the star

C. location of the sun in relation to the star

What is thought to be the main driving force behind plate movements? A. Hot plumes B. Simple convection cycles in the mantle C. Slab-pull D. Slab-push

What are some abiotic characteristics of a rainforest biome

Which of these proteins in mammals show only primary and secondary structures? oxytocin keratin hemoglobin

In which areas does acid rain most likely form before precipitating in locations downwind? A large cities with a high volume of smog B large cities with a low volume of smog C coastal cities that are not developed D small farming areas near lakes

In an interview, information elicited early from an interviewee carries greater weight than information elicited later. a. True b. False

What evolved to prevent land plants from drying out?

An arthropod's exoskeleton performs all of the following functions except A. production of gametes. B. protection of internal organs. C. support of the animal's body. D. preventing loss of body water.

Como são os anticorpos?

Scientists have been able to determine the composition of earths layers by:

Because he is now better-informed, jack wants to cook healthier meals. which recommendation should he avoid?