1. are nutrients that supply the main energy source for the body, in the form of sugars.
2. which of the following is not a type of tissue of the human body?
a.
bone
b.
muscle
c.
connective
d.
epithelial

1. Carbohydrates

(There are 3 sources of calories (or energy), which are also known as macronutrients: carbohydrates, protein, and fat.

Of these three, carbohydrates are the body’s preferred source of energy. Carbohydrates break down into glucose, which is an immediate source of energy.)

2.
A. Bone is not a type of human body tissue.

(The human body does has 4 types of tissue: Epithelial, muscle, connective and nervous tissue).

Here are the answers to the given questions above.
1. CARBOHYDRATES are nutrients that supply the main energy source for the body, in the form of sugars.
2. Based on the given options above, the one that is not a type of tissue of the human body would be option A. Bone tissue. There are four basic types of tissues in humans and these are epithelial, connective, muscular, and nervous tissue. Hope this answer helps.

answer: carbon 14 can only be used to determine the age of the organisms that were once living, and igneous rocks are non living.

explanation:

carbon 14 dating is used to determine the age of the sample by estimating the amount of carbon 14 present in the sample and then comparing it with a reference standard.carbon 14 is a isotope of carbon which is radioactive and unstable. carbon 14 is assimilated by all plants and animals throughout their life from carbon dioxide. however, one the organisms die they stop this assimilation and the carbon 14 content starts to decrease.by knowing how much of carbon 14 is left in an organism after his death, one can estimate the age of the organism. the materials whose age can be estimated by carbon 14 method are the organic compounds. however, some inorganic compounds such as aragonite   shell can also be dated.however, if we consider the igneous rocks it is a non living component which never accumulated carbon 14 in it and thus, we cannot use carbon 14 dating method to estimate its age.