Answer:
GCATTCGCGATTAAT
Explanation:
DNA is made up of structural units called nucleotides. each nucleotide consists of three components linked together by covalent bonds. These are a five-carbon sugar called deoxyribose, a phosphate group and a nitrogenous base. The organic bases are of four kinds: adenine which is complementary to thymine and guanine which is complementary to cytosine.
Answer: The correct answer for the fill in the blank is A) Circulatory, immune.
Circulatory system also called cardiovascular system is a vast network of organs and vessels that allow the circulation of blood so as to transport nutrients, oxygen, other gases, and hormones to different parts of the body.
Blood contains different cells like white blood cells, red blood cells, platelets.
White blood cells ( also called leukocytes) work closely with immune system. They provide defense against pathogen ( disease causing organisms) through various ways ( like ingesting foreign material, producing antibodies to clear the antigens). By doing so, they protect us from infection and disease.
Specific proteins are made only at certain times in certain cells.
The kidneys do not play a vital role in regulating blood glucose level. Hence, the kidneys play a vital role in ph balance, water balance and electrolyte balance which is called homeostasis refers to the maintenance of relative constancy or stability of the internal environment of the body. he urinary system play a key and central role in maintaining homeostasis in the body as a whole a nd because of metabolic activity occurring in every cell of the body and a host of both internal and external disturbances, you know as well that there are constant threats to both maintain and restoring that stability.
Answer:
DNA
Explanation:
DNA
Avery is best known for his 1944 discovery that DNA is the material of which genes and chromosomes are made.
