In a heterogeneous mixture, the ingredient substances are

A. sparse in some areas and concentrated in other areas

B. placed in a uniform way throughout

C. mixed equally throughout the system

How do scientists determine how to classify organisms?

Rank the buoyant forces supplied by the atmosphere on the following, from greatest to least: a. An elephant b. A helium-filled party balloon c. A skydiver at terminal velocity

What is the basic function of catabolic operons like the lac operon? a. to find an alternative energy source when glucose is absent or not present in sufficient amounts b.

Glucose molecules are the building blocks of what class of macromolecule

What is the most common form behavior for simple animals like cnidarians and worms

Why is carbon important to life in earth

What is the appearance of cell after it has been placed in pure water for thirty minutes

What is the term for the first recognizable movement of the fetus in the uterus? a. Abruption b. Effacement c. Gestation d. Quickening?

What type of annoying insect is named for a colorful article of clothing?

Which of the following represents the correct order in which early humans appeared? Homo erectus, Homo habilis, Homo sapiens, Australopithecine Homo habilis, Australopithecine, Homo erectus, Homo sapiens Australopithecine, Homo habilis, Homo