More recently, stem cells from the blood stream (called peripheral blood stem cells) and umbilical cord stem cells have been used to treat some of the same blood-based diseases.
Answer:
The sentences can be completed as follows:
The enzyme lactase breaks down the sugar lactose.
If the body doesn’t produce much of this enzyme, people have what’s called lactose intolerance.
During the chemical reaction the enzyme doesn’t get used up, but gets reused.
Enzymes are substances that speed up chemical reactions which are also known as catalysts.
Explanation:
Enzymes can be described as molecules which act as biological catalysts i.e they are involved in speeding up a chemical reaction. The enzymes do not get used up in a chemical reaction and hence, they can be reused.
Lactase is an enzyme which helps in breaking down the sugar lactose which is commonly found in the milk. If enough lactase is not produced by a person's body, then he/she becomes unable to digest the sugar lactose. Such a condition is known as lactose intolerance.
Answer:
The correct answer is: tissue.
Explanation:
Humans are made of organ systems, organ systems are made of organs, and organs are made of tissues. These <u>tissues are all composed of specific cells that work together in order to carry a particular task that is demanded by the body</u>.
There are four basic types of tissue: epithelial tissue (found in the surface of the skin and in the inner lining of hollow organs), muscular tissue (has the ability to contract), nervous tissue (regulates and controls bodily functions), and connective tissue (connects all of the other organs).
Did you remind<span> the </span>predicted phenotype ratio<span> and </span>children<span> of </span>dihybrid parents<span> that are </span>both right-handed<span> and </span>posses free ear lobes<span> - 2159873.</span>
