Answer:
Linnaeus primarily used physical characteristics.
Explanation:
Convergent evolution explains that non-related species can develop similar traits due to adaptations that happened while living in similar ecosystems. For example sharks which are a type of fish have similar body plans to dolphins, a type of mammal.
Answer:
To maintain homeostasis within the cell
Explanation:
The function of the cell membrane is to maintain homeostasis (stable environment) within the cell.
<span>adenine and guanine i think</span>
Answer:
The sun and the earth?
Explanation:
I'm pretty sure that's right, since earth orbits the sun.
Answer:
You can't see the blood vessels themselves because vision depends on a process that makes it impossible to see things that are stationary with respect to the retina. Light receptors in the retina respond only to changes in light reaching them, not to a steady image.
Have a great day! :D
