Answer:
The osteoblasts, which should have been building the new bone
Explanation:
Osteoblast are the cells that build bones by secreting the extracellular matrix for bone tissue. These cells secrete components such as collagen fibres and inorganic electrolytes that together make the matrix of bone tissue. Absence or inactivity of these cells could prevent the formation of new bone after fracture. Hence, doctors should target osteoblasts.
To answer this we need to remember how proteins are structured, the primary structure is just the polypeptide chain, secondary there is a certain folding level alpha-helix and folded beta-sheet, then is the tertiary structure that comes from a single polypeptide chain and is formed by secondary structures, finally, there is the quaternary structure where several polypeptide chains are involved as well as tertiary structures are folded together. Therefore taking this into consideration we can say that the correct answer is option two.
The answer is A) it will expel the excess water as urine the same way we humans do
It wasn't that the favourable traits were passed down through generations of species, it's that natural selection removed the species who simply couldn't survive. Here's an example: There are two species of moth in a forest, one is brown and the other is black. The trees in the area have trunks that are brown like the moth's wings, so it can camouflage very well compared to the black moths. Eventually, more black moths were being eaten by various amphibians and bugs than brown moths. So, the favourable trait of brown wings continued to be passed on, whereas the black wings went extinct as they were all eaten. Hope that helped :D