Answer:
well its either a or b but I think its a .
Answer:
You have to use certain materials, so that's a limitation
Explanation:
You have to use certain materials, so that's a limitation because you can't use every materials in the world. You have to use certain ones.
Endocrine glands: Thyroid, hypothalamus, and ovaries
Pineal gland is not an endocrine gland
Answer :Four characteristics were to be used for the classification of all viruses:
Nature of the nucleic acid in the virion.
Symmetry of the protein shell.
Presence or absence of a lipid membrane.
Dimensions of the virion and capsid.
Explanation: