<span>Of the 118 elements that have been discovered, 90 of them indisputably occur in nature. There is disagreement over whether four more or eight more occur naturally as a result of radioactive decay of other natural elements. The answer is, therefore, 94 or 98.</span>
They both help the envirment
Answer:
Organisms get larger and develop into different stages of life >> Growth and development
Heal wounds, replace damaged cells >> Replace cells
Organisms make more of the species to keep them from going extinct >> Reproduction
Explanation:
Growth refers to the irreversible process by which organisms/tissues/cells increase in size and mass. Moreover, development can be defined as the progression from earlier to later maturation stages (e.g. fertilized ovule develops into a seed that will produce a mature tree). Cell replacement is a natural mechanism that occurs when cells become aged or in response to external/internal damage. During cell replacement, cells are produced from other cells by cell division. Finally, reproduction is a key biological process by which organisms (called parents) produce new genetically related organisms (i.e., offspring). According to the mode of transmission of genetic information, reproduction can be divided into sexual reproduction (offspring are different from parents) and asexual reproduction (offspring are the same as parents).
Hormones are chemicals from endocrine glands, and neurotransmitters are chemical signals from neurons. Hormones are electric impulses sent from endocrine glands, and action potentials are electric signals sent through neurons. Endocrine glands and neurons both send their messages through the bloodstream. Endocrine glands and neurons both use electrical signals.
I think it might the both common is using electric signal.
Most neurons have only one axon. An axon is the part of the neuron that transmits nerve signals away from the soma to other neurons ....Endocrine signaling occurs when endocrine cells release hormones that act on distant target cells in the body.
Refer to textbook..
Answer:
because the new ones has to live
Explanation:
in order for a community to live some specie's has to be eliminated for the resources to be maintained
