Answer: To attract the male partner.
Explanation:
Birds that live in the temperate forest have colorful feathers to attract opposite sex. In case of birds if there is any dispute over female and if two birds are fighting.
Then the bright colored male is selected over other bird because of being more attractive. One trait will be selected over other by the female bird.
hence, this adaptation will help in mating.
A true
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Answer:
There is a certain water potential maintained in the body of the paramecium, which can change in response to changes in its environment. When the water solute level is increased all the way up, the water potential in the surrounding is a lot lower than the water potential inside the paramecium. Due to this steep water potential gradient, water will leave the paramecium's cell into the surrounding via osmosis. Water being transported out of the paramecium will cause it to dehydrate and die.
In the opposite case where the solute level is lowered all the way down, no water will enter the paramecium cell because its water potential is lower than the surroundings. The difference in water potentials is so great that the water entering the paramecium's cell will cause to burst and die.
Note: remember that diffusion and osmosis takes place down the concentration gradient. The concentration of one environment is determined in reference to another.
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Answer:
Matter cycles through an ecosystem through processes called biogeochemical cycles.
Explanation:
Photosynthesis
Plants build carbohydrates by taking in carbon dioxide from the atmosphere.
Carbon moves through the food chain
As organisms eat other organisms, carbon moves up the food chain. Molecules in the food that contain carbon transform into the organic molecules that make up the living body.
Carbon moves back to the environment
Organisms use food molecules, containing carbon, as a form of energy. The process of cellular respiration breaks down food molecules into carbon dioxide.
Contribution of industry
Humans contribute to moving carbon dioxide back into the atmosphere through the combustion of fossil fuels.
Use of fossil fuels
Today's fossil fuels were formed hundreds of millions of years ago by plants deposited in the Earth. The decomposition of the plants slowed down in such a way that their organic molecules are used for natural gas, coal and oil.
Diffusion into the air
From the oceans, carbon dioxide diffuses into the air. This creates a large amount of carbon, which is then taken in by plants to start the cycle over again.
The three stages in the processing of information by the nervous system are the sensory input, the integration and the motor output.
During the sensory output, the sensory neurons carries information for the external stimuli such heat, smell and tastes, and other internal conditions, to the central nervous system for processing. The the CNS analyzes and interprets the input from the sensory neuron and then decides how to respond to the stimuli. Then the motor neuron carries the information from the CNS to the effector cells , that is the muscles and the endocrine glands which then exert the output.
