Why do modern humans crave food that is high in fat and sugar

Which organism in an ecosystem is likely to be found at the top of an energy pyramid?

Which statement is false? a) When DNA is being replicated inside a cell, local heating occurs, allowing the two strands to separate. b) Prokaryotic cells have a single DNA replication origin in their chromosomes.

Temperature, blood sugar level, potassium and sodium, arousal level, body water volume, blood oxygen level are all biological states in the body that must be maintained. This process of maintaining a steady state of balance is known as

Skeletal muscles are composed of hundreds to thousands of individual cells called

When the string of lights is plugged in what energy transformation will take place

Which of the following statements about water are true? Check all that apply. Water covers 75% of the Earth Once water is used it can never be reused. Only 3% of Earth's water is fresh water. Water comprises the majority of all plants and animals

How organisms could be harmed by high levels of salt from roadways, and expressing your opinion about whether it should continue and why.

If a wildfire occurs in a grassland, what would be a positive effect to the ecosystem

Horizontal stems below the ground are called? rhizomes spines runners roots

Why is upper surface of dicot leaf much darker than the lower surface