Answer:
While flowering plants only use seeds, nonflowering plants use either seeds or spores. Spores are very tiny parts of a plant that can be used to reproduce.
Explanation:
hope this helps:}
Answer: selective permeability.
The cell is said to be selectively permeable
Explanation:the cell membrane is the membrane that covers the living portion of the cell.the is the boundary between the cell and it's extracellular environment.
The cell membrane contains lipids ,proteins and carbonhydrate.the lipids forms a bilayer in which proteins are embedded.the bilayer allows some materials to move through the cell membrane more easily than others.thus the cell is said to be selectively permeable.
Small molecules such as oxygen gas, nitrogen gas ,which can dissolve in the lipids,can easily pass through.uncharged molecules can also pass through eg carbon dioxide.
Large polar molecules eg glucose,amino acids etc.can not easily pass through and they may need to be carried by transport proteins
The correct answer is protein.
Protein being the macro molecule is involved in almost every function of the body. Some of the important functions of the protein in the body are given below.
- Like our nails and hair are made of keratin protein.
- All the enzymes that is involved in the metabolic reactions of the body are protein.
- As like carbohydrate and fat, protein has no reservoir in the body so it is taken by the body and is utilized by the body without being stored.
As stated in the question, a student who is thirsty decides
to sneak a drink of deionized or distilled water. Given the fact that he drank
a fairly large quantity of this water in a short period of time, it will cause
the student's cells to swell.
Selective Breeding is the oldest form of Biotechnology.