I believe it is answer choices 1 2 and 4
<span>The three sources of signals related to the regulation of cell growth and division are :
</span><span>a) Other Cells
b) Other Organs
c) Environmental Conditions</span>
Maybe it <span>uses a hooked shoot to protect the sprout tip from damage, but I may be wrong. Hope this helps!</span>
3- spores that’s the answer
Extinction of other species will negatively affect human society by affecting multiple things. One thing that may happen is that the ecosystem will fail, and it will eventually become a bare wasteland,n destroying possible recources for humans. As well, if humans have a direct use for them, such as cows for milk, or pics for bacon and ham, those direct recourses will deplete humans recourses, and there may be riots, or the population dwindling because of a lack of recourses. as well, some helpful animals such as plants go extinct, then no oxygen will be exchanged through photosynthesis, and it would cause a lot of pollution,
