Answer:
hormones
Explanation:
An example of materials commonly released this way is hormones. These are chemical messengers that are sent to the pituitary gland where they are released directly into the bloodstream. The blood then carries the hormones to different organs and tissues of the body in order to exert their specific function which varies depending on the specific type of hormones being secreted.
Fossil fuels are an important natural resource used by society because
it makes our living easier. Fossil fuel is buried combustible geologic deposits
of organic materials fromed from the plants and animals that have died. The dead
beings are then converted to crude oil, coal, natural gas or heavy oils when
exposed under heat and great pressure in the earth.
Answer:
A mixture is made when two or more substances are combined, but they are not combined chemically. There are two main categories of mixtures: homogeneous mixtures and heterogeneous mixtures. In a homogenous mixture all the substances are evenly distributed throughout the mixture (salt water, air, blood).
Answer:
Carbon
Hydrogen
Oxygen
Nitrogen
Explanation:
The key elements of an amino acid are carbon (C), hydrogen (H), oxygen (O), and nitrogen (N), although other elements are found in the side chains of certain amino acids. However, carbohydrates do not contain the element Nitrogen and all carbohydrates, including sugar, therefore contain the same three elements: carbon, hydrogen and oxygen. Different arrangements of these elements form single units to make different types of carbohydrates.
Answer:
KCl is an ionic compound.
Explanation:
