Which theory was contradicted by experiments with the photoelectric effect? Light spreads out after it passes through a small opening.
O As soon as light strikes metal, electrons will be ejected,
O Visible light, regardless of color, will cause the ejection of electrons when striking metal,
O The kinetic energy of ejected electrons depends on the frequency of light that strikes the metal,

Which best compares habitat and niche? o niche is a place in which organisms live, and habitat is the way in which an organism fits into its habitat. o habitat is a place in which organisms live, and niche is the way in which an organism fits into its habitat. habitat is a group of organisms that live in an area, and niche is a specific species that lives in that areao niche is a group of organisms that live in an area, and habitat is a specific species that lives in that area.

Control of the body is accomplished by which of the following body systems? nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems

Photosynthesis uses co2 and cellular respiration produces co2. we call the point when the two processes are in balance--when there is no net production of co2--the compensation point. how might you limit one of the processes in order to achieve a compensation point?