One of the many unique properties of water is that its solid form (ice) is less dense than its liquid form. most substances become more dense when in solid form, because their molecules are more tightly compact. why is this property of water so important to life on earth?

In a classic experiment using pea shape, mendel conducted two separate genetic crosses. in the first cross the parent plants were “true breeding” for pea shape; one had round peas ( r )and the other had wrinkled (r). the first cross produced a filial 1 generation of all round peas. in the second cross, mendel bred plants from the filial 1 generation. this cross produced different results. out of approximately 1000 plants, about 75% were round and 25% were wrinkled.

What is the inability of an individual or a society to achieve a minimum standard of living known as ?

When you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?