Answer: a circle and uniform motion
Explanation:
Ptolemy's model of the universe placed the Earth motionless in the center of a universe subject to uniform circular motion, the other planets, the Moon and the Sun describe complicated orbits around it.
As Ptolemy was a respected astronomer and geographer, this idea was accepted for a long time, until Copernicus arrived with the new model (heliocentric theory) that placed the Sun at the center wir the Earth and other planets describing circular orbits around the star. However, <u>the heliocentric theory did not explain why planets orbit the Sun at different speeds at different times, because this model used only circular orbits in uniform motion. </u>
All of this is due to the Greek ideologies of perfect form and motion with a perfect circle. But then, the astronomer Johannes Kepler refined the Copernicus' heliocentric theory with the introduction of <u>elliptical orbits.</u>
The parts of an ecosystem exists independently and have little to do with each other
this is untrue cause we have a food chain even the standard base of animals ruling
if there's too much or too little of anything and can spell an end to a species or even worse while, that be plants or animals
Answer:
Ecosystem is the basic of functional units and structural of ecology is called ecosystem.
Explanation:
Ecosystem is are the components in volume of space,ecosystem are often to flow of materials and energy.
Ecosystem through the animal feed on biomass and energy transfer,and water to produce oxygen and carbohydrates.
Ecosystems are provide that they products and services that to the human survival,plants and animals are their restore chemical components of the soil.
Ecosystems understanding with highly global complex ecosystem,there are many attributes :- (1) structure (2)complexity (3) function (4) temporal
(1) structure:- ecosystems structure bio tic and composed sub components.
(2) complexity :- complexity is process of high levels of integration that ecosystem.
(3) function :- function ecosystem exchange living and physical environment.
(4) temporal :- overtime dynamic ecosystem temporal functional system.
Health ecosystems benefits to humanity known as good and services.
Answer: you can get the answer if you see the time line and the period
Explanation:
