Answer: I'm pretty sure that is the nucleus and i am so sorry if i am wrong
Explanation:
Answer: mutations that natural selection can work on. 4.) How do scientists calibrate a molecular clock? ... they compare the number of positive mutations that have occurred in a particular species with the number of negative mutations that have occurred
Explanation:
Answer:
3) away from the area where it is more concentrated
Explanation:
A substance that moves across a cell membrane without using the cell's energy tends to move away from the area where it is more concentrated.
It is known as passive transport.
It is the process in which substance without using the cellular energy tend to move down the concentration gradient.
It is also known as simple diffusion.
All other options are incorrect because,
In case of active transport substance move against the concentration gradient i.e to wards the area of higher concentration.
This process require energy.
As we know that plants are autotrophs mean they can synthesize their own food through a process called photosynthesis in which plant utilize water,carbon dioxide and sunlight to yield glucose and oxygen so the main purpose of photosynthesis is to convert water and CO2 to glucose and oxygen
hope it helps