A. external
These types of signals are observed when there is a cut on the body. The epidermal cells lose contact with one another and divide faster until they are in contact once again. After they come into contact, division slows down again.
The human body strives to maintain homeostasis, the state of balance between internal and external change.
Answer:
This is for the table at the top
<em>Plentiful roaming space</em>- increase - <u>because they</u><u> have more space they can live in.</u>
<em>Severe</em><em> </em><em>drought</em><em> </em><em>-</em><em> </em>decrease<em>-</em><em> </em><em> </em><u>because they</u><u> </u><u>wont</u><u> </u><u>have</u><u> </u><u>enough</u><u> </u><u>water</u><u> </u>
<em>abundant food </em><em>source</em><em> </em><em>-</em><em> </em>increase - <u>Because they have enough food to sustain themselves </u>
<em>Habitat </em><em>destruction</em><em> </em><em>-</em><em> </em>decrease - <u>Because they won't have a place to live in </u>
<em>Elimination of predators</em><em> </em><em>-</em><em> </em>increase - <u>Because there will be less animals hunting them for food.</u>
<em>Lack of competition</em><em> </em><em>-</em><em> </em>increase - <u>Because they won't have to compete for food which will allow them to have more.</u>
<em>Disease</em><em> </em><em>outbreak</em> - decrease - <u>Because the disease will kill a lot of them and can potentially cause birth rates to go down</u>
James Watson is credited with the discovery is the stricture of DNA.
he gibe the 3D structure of DNA in 1962 ,
.
★ hope you like it ★
Answer:
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product.
