influence the expression of certain genes
a niche
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The skin is the boundary which separates an organism from its environment. But this barrier that keeps you on the inside and the germs on the outside must also allow certain exchanges between the organism and the environment, for survival.
An exothermic organism is cold- blooded and it's body temperature shifts depending upon the temperature of it's surrounding environment, for example a fish. An endothermic organism is a warmblooded organism that maintains a certain temperature inside the body no madder what its surrounding environments temperature is, for example humans.
Hi. Around the deep water vents exist organisms that thrive in the heat of super heated water. But any cold blooded creature is exothermic. Snakes are a good example. They control there body heat by using an external heat source. Sunlight by day and warm surfaces by night. An exothermic organism is cold- blooded and it's body temperature shifts depending upon the temperature of it's surrounding environment, for example a fish. An endothermic organism is a warmblooded organism that maintains a certain temperature inside the body no madder what its surrounding environments temperature is, for example humans.
A organism with traits that are suited to a certain environment have a better chance of surviving than organisms who's traits are not suited for the environment.
A niche is the role an organism has in the environment . for example some organism's niche is to hunt and kill certain animals and that balances the population within the ecosystem .
Certain chemicals and radiation in the environment can cause a reaction or mutation in an organism. Such changes may alter organisms genotype or phenotype. Chemicals that induce changes in organisms DNA is called mutagens.
warm blooded animals- mammals and aves
Perception is a process by which an organism recieve certain information about environment. Perception is always based on sensation.
the abiotic factors in a certain community or ecosystem are those factors related more directly to the environment surrounding the organism. some abiotic factors include temperature, rainfall ans salinity.
Urea. So is the heart beating and breathing