The human population on earth grew at an extraordinary rate during the 20th century, when it increased from 1.65 billion to 6 billion. which kind of curve would accurately show the changes in the human population during the 20th century?

According to the law of conservation of energy, energy can neither be created nor destroyed. if this is true, why is there less energy in the top of the energy pyramid than there is in the bottom of the energy pyramid?

Explain the difference between incomplete dominance and codominance

Which of the following are the ingredients that go into the plant and are needed for photosynthesis? select all that apply. 1.) soil 2.) seeds 3.) carbon dioxide 4.) minerals 5.) glucose (sugar) 6.) water 7.) light energy (sunlight) 8.) oxygen 9.) air