PLEASE HELP Which of these models of the solar system shows that the planets and sun travel
around Earth in epicycles?

Ptolemic model

Copernicus model

Brahe model

Kepler model

any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]

1)

i))the process of preparing food by green plants in the presence of sunlight is called photosynthesis.

ii) leaf is the site for photosynthesis.

iii) it takes place as,

6h2o+6co2=c6h12o6+602