Hello there.
<span>Regulation of the cell cycle is dependent upon cyclins and cyclin-dependent kinases. The key(s) that allows a cell to progress beyond the restriction point is (are)
</span><span>c. cyclin A and Cdk2.
</span>
Answer:Organel
Explanation:
A lysosome (/ˈlaɪsəˌsoʊm/) is a membrane-bound organelle found in many animal cells. They are spherical vesicles that contain hydrolytic enzymes that can break down many kinds of biomolecules. A lysosome has a specific composition, of both its membrane proteins, and its lumenal proteins.
Conidia are fungus spores. Macrocnidia means that the fungus spores are complex and large. Microconidia are fungus spores that are smaller.
It's hard to say which kind of liquid is the first one.. I think it's a virus (but it also kinda looks like water though!)
1. A = either water or a virus
B = Blood
C = Bacteria
D = Water/Virus and Bacteria
2.The mouse dies after being injected with substance B and D and lives after injected with substance A and C
3. I think that if you inject the mouse with a different blood type it will not survive, just like with humans the blood will clot which can cause veins to close.
And I think with the last one; if you have a virus or caught a bacterial infection you would create anti-bodies/white blood cells to defend the body and be resistant to them. But when you combine them the virus will take the bacteria as a "host" to make more virus cells and if you don't take antibiotica (like in the mouses case) eventually he would get really sick.
Hope these are the awnsers you are looking for : )
