Answer:
Semi-permeable membrane
Explanation:
In semi-permeable membranes, only some substances can pass through. Sometimes, some can also pass through the channel protein molecules or transport proteins on the cell membrane.
Answer:
Tentacles have specialised stinging cells called nematocysts. They use these to immobilise their prey so that the tentacles are then able to move the food into the mouth.
Explanation:
Answer:
The correct answer is - proteins.
Explanation:
Enzymes are made up of the long chains of amino acids that are linked by the peptide bonds that make a polypeptide chain known as proteins. Proteins are the building block of the enzyme and the building of thevarious structures in the body.
Enzymes are made up of two protein that also plays as the role of a biological catalyst whereas protein only plays role in forming different structure and performing functions.
A chromosome consists of a single, double-stranded DNA molecule. Chromatids are two molecules of double-stranded DNA joined together in the center by a centromere. Chromosomes have a thin ribbon-like structure. Chromatids have a thin and long fibrous structure.
The answer to this question would be: b. False
The area between dermis and epidermis is small and get oxygen from nearby capillary vessel bed, not a major blood vessel. You can find the major blood vessel in the dermis area. This vessel will supply enough blood to the skin, glands, and receptors inside the dermis.
