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How do people and other living things get carbon?
people and other living things get carbon from the continuous exchange of carbon among living things (the carbon cycle).
What is meant by the term diversity as it relates to organisms?
The difference among organisms.
Does a dichotomous key show evolutionary relationships among organisms?
yes
What is the simplest structure shared among all living organisms?
Nucleus
What is group of organisms that look alike and can reproduce among themselves?
A. species
How do people and other living things get carbon?
people and other living things get carbon from the continuous exchange of carbon among living things (the carbon cycle).
What two gases are exchange among arteries veins and capillaries?
oxygen and carbondioxide
Why are chemoautotrophs rare among familiar organisms?
Chemoautotrphs are rare among other familiar organisms because they do not compete well with other organisms and they are not important in the sun-lit, carbon-rich environments which we are familiar with.
What is the mass of carbon in the Earth's carbon cycle.?
The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth.The biosphere, oceans, atmosphere contain about 0.45 * 1018 kilograms of carbon;The organic carbon content of the earth's crust (fossil fuels) is 13.2 * 1018 kilograms of carbon;The carbon forming components of crustal minerals (limestones etc) is 62.4 * 1018 kilograms of carbon;( and the Earths interior (mantle) contains 1200 × 1018 kilograms of carbon but this is not directly linked to the Earths Carbon cycle. )The total mass of carbon in the carbon cycle is therefore 76.05 * 1018 kilograms.
What is the primary source for living organisms?
The primary energy source for most living systems is nutrients. Nutrients are elements and compounds that organisms consume and require for survival. Organisms need several dozen naturally occurring chemical elements to survive; among these are nitrogen, carbon, and phosphorus.
What is the definition of the term autotroph?
The term autotroph refers to organisms that are able to make organic substances out of inorganic substances such as carbon dioxide among several others.
What is the primary source for organisms?
The primary energy source for most living systems is nutrients. Nutrients are elements and compounds that organisms consume and require for survival. Organisms need several dozen naturally occurring chemical elements to survive; among these are nitrogen, carbon, and phosphorus.
What is the carbon cycle?
The carbon cycle is a process by which carbon is cycled between the atmosphere, land, water and organisms. Carbon enters a short-term cycle in an ecosystem when producers, such as plants, convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis.The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth
What is meant by the term diversity as it relates to organisms?
The difference among organisms.
What is the branch of biology dealing with interactions among organisms?
Ecology, the study of interactions among organisms and their ecosystem.
What of the relationship among organisms is the best?
mutual relationship (when both organisms's benafit)
What are the islands where Charles Darwin observed variation among organisms?
Galapagos Islands are the islands where Charles Darwin observed variation among organisms.
