When you clear water from a mask with a purge valve, you tilt your head:?

I am a solid, nonmetal with 53 electrons what am I?

In the disease osteoporosis there is a significant loss of spongy bone. explain how the loss of this specific bone material can weaken a bone.

What does the wide variety of different types of animal eyes represent? what does the wide variety of different types of animal eyes represent?

A dark-red strain and a white strain of wheat are crossed and produce an intermediate, medium-red F1. When the F1 plants are interbred, an F2 generation is produced in a ratio of 1 dark-red : 4 medium-dark-red : 6 medium-red : 4 light-red : 1 white

Needed for bacteria to carry out their life functions

Most biological molecules are joined by:

7. Which human activity will most likely contribute to ozone layer destruction? cutting down trees to build a library using fertilizer to grow bean crops planting flowers that come from another area frequently using an air conditioner in the home 8.

Compounds are made up of electrons cells molecules protons

What organelle do both prokaryotic and eukaryotic cells have in common? What does it do?

how does drooping the sticks on the table and transcribing the letters on the sides facing up follow mendel's law of segregation