Answer:
Plasma membrane is the semi-permeable membrane that allow the movement of some selected particles only against the concentration gradient or along the concentration gradient.
Different substances can be move through the diffusion, active process and passive process. The hydrogen in the vesicle has been moved through the facilitated diffusion. In this process, the hydrogen ions will move along the concentration gradient without the requirement of energy but requires the channel protein for its transport.
Answer:
Wing-color changes in peppered moths are a common example of what scientists refer to as natural selection. In it, organisms develop random mutations.
Explanation:
I dont know if this if for a workbook but i hope this helps
The answer is: a pathogen
A pathogen is anything that can cause a disease, such as a virus or bacteria.
'Path' is like pathology and 'gen' is like generation/ creation.
When you catch a cold, it's typically a viral infection such as rhinovirus, so pathogen works.
There is no effect. But something that could affect the food web is a keystone species that would make predators increase in pop while prey dec