Vertebrates have a back bone. They have living endoskeleton, pharnyx and efficient respiration, advanced nervous system, and paried limbs.
Answer:
Chemical properties are very useful in identifying substances. However, unlike physical properties, chemical properties can only be observed as the substance is in the process of being changed into a different substance.
Answer:
Guard cells
Explanation:
Guard cells are can be described as a special group of plant cells that are located or can be found in the epidermis of plants. They come in the shape of a kidney.
They help to control the rate at which air moves in and out of the plant, the is achieved by periodically opening the stoma and blocking it back. They are also responsible for the regulation of water movement in and out of the plant.
This essential material in which the guard cell regulates/ control is an important part of plant photosynthesis, therefore they play an important role in the process through which plants manufacture their food.
Yes all information about DNA above is right , DNA stores<span> biological </span>information<span> in sequences of four bases of nucleic acid — adenine (A), thymine (T), cytosine (C) and guanine (G) — which are strung along ribbons of sugar- phosphate molecules in the shape of a double helix.</span>Dna store information which is dependent on genetic code , which dependent on the genetic code. The code which define relation between the sequence of bases in DNA (or its mRNA transcript) .Every cell in the human body carries a bundle of DNA in its
nucleus — nearly 30,000 genes, and the chunk fromdna become proteins.. Each of the 46 chromosomes in a human
cell’s nucleus bears thousands of genes.
