How many moles of MgCl2 are there in 321 g of the compound?

What does the buildup of lactic acid cause?

Omar studies the effects of a drought on the water level in a pond. He takes a reading of the water depth at the same location in the pond every day for the duration of the drought.

Match each event with its description. full moon The moon is fully visible to observers on Earth. new moon The moon lies between Earth and the sun, but does not block light from reaching Earth.

A student has a microscope with a 10x eyepiece and 10x and 40x objectives.

The force that causes air to move into and out of the lungs is supplied by

Sponges are made up off

The maxinmum numbers of individuals of a particular species that a partiticlar environment can support is its

What is the layer of the atmosphere 20 km above Earth's surface

An experiment was conducted to determine which type of fruit attracts the most fruit flies. Equal sized pieces of apple, pear, and banana were placed in separate containers at different areas around the school.

In the F2 generation of Mendel's crosses, A. all plants had the dominant trait. B. half of the plants had the dominant alleleC. all plants had both the dominant and recessive alleles. D. one in four plants had two alleles for the recessive trait.