Because the cell membrane controls what enters and leaves the cell. It also gives the cell support and protection and helps maintain homeostasis. Hope it helps you
Water pollution is the introduction of pollutants either naturally or due to human activities. Runoff from many farms can result in water pollution.
<h3>What are the causes of water pollution?</h3>
Water pollution is the contamination of water sources with some pollutants which make the water unusable for the purposes like drinking, cooking, cleaning, swimming, and other activities.
These substances can be chemicals, bacteria, parasites, etc. All sorts of pollution make go to the water directly or indirectly.
One of the prevalent sources of water pollution is runoff from many farms.
Thus, the correct option is C.
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Animal breeders need to understand genetics in order to produce animals that are bigger, faster, or more beautiful. An animal breeder could breed thorough breeding, Work with wildlife conservationists to breed endangered animals in captivity, Keep animal pedigrees to determine how traits, like coat, color are inherited, Help a family settle on an ideal breed of animals for their lifestyle.
Answer:
The atom has more electrons than protons.
Explanation:
Ions may be defined as the element that contains either positive or negative charge over it. Two types of ions are cations and the anions. The charge on the species is obtained by the loss or gain of electron.
Anions carry negative charge over them. Negative charge occurs by gaining of the electrons from its neighboring atoms. The number of protons and electrons are equal in neutral atom. Since, the ions gain the electron and hence it carries more protons.
Thus, the correct answer is option (a).