Tissues are groups of similar cells that have a common function. An organ is a structure that is composed of at least two or more tissue types and performs a specific set of functions for the body. Many organs working together to accomplish a common purpose is called an organ system
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Photosynthesis and cellular respiration are complementary because both depend on the inputs and outputs of both processes to continue. Photosynthesis requires CO2, which cellular respiration outputs and cellular respiration needs oxygen which photosynthesis makes.
Explanation:
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Answer:
The answer is
Organs combine to form an organ system.
There are four postulates of Darwin in which individual of species are not identical, traits are eased from one generation to the other and more offspring are born than that can survive. survivor of the competition for resources will reproduce only.
The four principle or postulates of Darwin are - variation , inheritance , selection and time. these all are considered the evolutionary component natural selection mechanism.
One is origin species by means of naturally selective mechanism, then preserve in the struggle of race of life.Darwin selection is mainly depends on the environment and heritable variations.All species of organisms which arise through natural selection of survive and reproduce.
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They cannot live without water
