Why can many ecosystems exist in in one biome

Which three elements are found in all fats and oils

Which of the mechanisms listed below requires energy? A. endocytosis B. diffusion of oxygen into a red blood cell C. osmosis of water across the cell membrane D. facilitated diffusion of ions through a protein channel

Allan is trying to significantly reduce his risk of another heart attack. which risk factors for heart disease are non-modifiable?

Energy from the sun can be used to make electrical energy. True or False?

States that all living things are composed of cells, cells are the basic unit of life, and cells come from pre-existing cells

Consider the following hypothetical scenario: An ancestral species of duck had a varied diet that included aquatic plants and terrestrial plants and insects. These ducks spent time on both land and water.

Which sequence furthers scientific knowledge

Thi process transfer energy from nutrients to atp

How would you make the observation "The bird chirped" into a scientific observation?

1. Humans start off as what?