Answer: The endocrine system sends chemicals called hormones through the bloodstream to change short-term and long-term activities in the body
Explanation: Endocrine system is a system made up of glands that produce and secrete chemical signal called hormones which travel through the bloodstream to the target cell where they exert their effects.
A hormone is a chemical messenger secreted by an endocrine gland. Long-term activities in the body influenced by hormones include growth and development.
Answer:
It's impossible to predict the phenotype of the offspring by only observing the parents because DNA from their grandparents can affect the offspring as well.
Explanation:
DNA is combined from the parents to create offspring. When that offspring reproduces their children not only possess DNA from their parents but from their grandparents as well. Mixing together two separate DNA's from two different family trees can result in rare genetic mutations which results in the offspring looking different from their parents but showing resemblance to their grandparents. This is why you have to look at the phenotypes of more then just the two parents because there are more possibilities, including what their grandparents looked like.
Answer: When the plant has enough water in its cells the guard cells swell up and open the stomata. When the plant isn't getting enough water the guard cells can't swell and the stomata stay closed, so the plant doen's lose water. But if the stomata are closed photosynthesis can't happen and eventually the plant might starve.
Explanation:
Http://www.innerbody.com/image/musc01.html
YOU CAN FIND YOUR ANSWER HERE.
Answer:
B. people notice little about the message that they are supposed to ignore
Explanation:
In dichotic listening task people are able to concentrate on one voice while ignoring the other. It is observed that during dichotic listening task people concentrate more on one task than other. Sometimes dichotic listening task is used to examine the selective attention of brain. In the test the person is subjected to two voices simultaneously over the headphones and asked to pay attention either one or both voices. Then he is aked questions about the content.
Example; If you are talking on the phone with someone in a room filled with voices of other people, you would be able to listen and concentrate at the voice on the phone while ignoring the other voices because of dichotic listening.
Example; If you are attending a seminar of a psychology professor and some peoples are talking in the hall you would be able to concentrate on the voice of the professor because of dichotic listening.
