Kangaroos are:

a. placental mammals

c. monotremes

b. marsupials

d. echidnas

The speed of sound in air at 20 deg C. Is approximately 340 m/s True or False

Which of the following best describes plasma? a group of super cooled particles with very low kinetic energy an ionized group of particles with low kinetic energy a gas that becomes a solid without first becoming a liquid an electrically charged gas

What organs control the amount of water in the body by filtering your blood and excreting waste products through urine? kidneys lungs heart brain

A cell from which organism would most likely be smallest? a. sugar maple tree b. ladybug c. yeast d. lactobacillus bacterium

Number of chromosomes in new cells meiosis

which of the following is a energy consuming process a. excretion b. anabolism c. both a and b d. catabolism

Describe what it means for a field of study to be considered a science

Why are organisms that have organs classified as more complex than organisms without organs?

What is the final energy source that the muscles need in order to move? fat, sugar, ATP, or glycogen

What provides clues about the ocean and climate including the type of marine life presented? A. the density, temp, and salinity of ocean water. B. the volume, density, and salinity of the ocean water C. the mass, volume, and density in ocean water D.