How do primitive heterotrophs produce energy? a. aerobic respiration b. chemical fermentation c. photosynthesis

A unicellular protist is part of which domain

Why is taking vitamin c ineffective at enhancing iron absorption from standard iron supplements?

In which of the following scenario is chemical energy being transformed into thermal energy

Scientists have discovered a galaxy at a distance of 600 billion kilometers from Earth. What is the distance, in AU, between the galaxy and Earth? 400 AU 600 AU 4000 AU 6000 AU

Which of the following correctly differentiates the types of muscles based on the type of movement that they produce?

The Mohs scale is used to determine a mineral's

Hybrids between grizzly and polar bears have been moving farther north. What do you predict about the migration of their hybrid zone over time? A. It will eventually completely overlap with the range of polar bears. B.

What is the importance of the genetic code?

How many DNA helices are there in a bivalent? A) 1 B) 4 C) 8 D) Some other amount.

What is nondisjunction