Nowadays our technology is far advanced then our imagination. there are some evdiences from which scientists pridicts that cause of extinsion of dinosaurs. Fossils, Imprints and other things shows the ancient climetic condition condition. using carbon dating process scientists determines age and environmental and climetic condition of that period.. they use these things as basis of their reserch and print their thesis.. so till now no sure evidence has been found...theory of Darvin, lamark tells us same things that dinsaurs extinct beacause of "shortage of food, struggle for existance,, etc"
hope this helps u.......i u have any confusion then u can ask.
Antagonistic is the term for the phenomenon that occurs when two hormones present together to produce effects that are weaker than the effects of either one acting alone.
An antagonism, in ecology is an association between the organisms in which one benefits at the expense of the other. In Biology, it can be defined as A biological response to the exposure to multiple substances which is very less than would be predicted if the known effects of the individual substances were added together. For example, Your little sister or brother benefiting by disturbing you while you study.
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1. D
2. C
3. B
4. A
5. Alveoli
6. larynx
7. mucus
8. nitrogen
9. diaphragm
10. Air enters the body through the mouth or nose and passes through the pharynx and larynx. Then it travels down the trachea and branches through the bronchi into the two lungs. In the lungs, small alveoli are the site of gas exchange where carbon dioxide diffuses into the lungs for exhalation, while oxygen from the air diffuses into the capillaries surrounding the alveoli to be pumped throughout the body.
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Answer:Chlorophyll breaks down.
Explanation: In fall, there are changes in the daylight and temperature. This causes the leaves to stop their food-making process. The chlorophyll breaks down, the green color disappears, and the yellow to orange colors become visible and give the leaves part of their fall color.
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