Which of these statements is true about sperm and egg cells?
a) sperm and egg cells are made during mitosis.
b) sperm and egg cells have as many chromosomes as any other kind of cell.
c) sperm and egg cells are made during meiosis.
d) sperm and egg cells are about the same size.

As , plants meet their needs for making food from air, soil, water, and the sun's energy in a process called there are plants called grow high in trees without here are words to put in the blanks. 1.) producers 2.) consumers 3.) chloroplasts 4.) epiphytes

Darrel conducted an experiment with the following procedure: fill two cups with ice water. place an uninflated balloon snuggly onto your left index finger. blow a little air into an identical balloon, and place it onto your right index finger. place both fingers into the cups of ice water. darrel noticed that his right finger felt warmer in the ice water than did his left finger. which of the following does the experiment show? a. air is a good radiator of heat. b. air is a good insulator of heat. c. air is a good conductor of heat. d. air is a good convector of heat.

Aplant may open end close its stomata to prevent excess water loss and maintain