The incidence of down's syndrome increases with the age of the mother. <br> a. True <br> b. False

Describe in detail how gases are exchanged between the respiratory system and the circulatory system in the lungs

charle [14.2K]

Answer:

Gas exchange

Explanation:

Gas exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them. As shown below, inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli.

4 0

3 years ago

Who devised a technique for determining the blood group of a dried bloodstain, which he applied to criminal investigations?.

Dominik [7]

Landsteiner Bertillon devised a technique for determining the blood group of a dried bloodstain, which he applied to criminal investigations.

<h3>What about blood group?</h3>

According to the presence or absence of antibodies and hereditary antigenic compounds on the surface of red blood cells, blood is classified according to its type.
Depending on the blood group system, these antigens could be proteins, carbohydrates, glycoproteins, or glycolipids.
The genes that a person got from their parents determine what blood type they have.
There are numerous systems for classifying blood types, but ABO is the most popular one.
The ABO group is divided into four main categories: A, B, O, and AB.
There are eight more blood types within these groupings.
Each of the eight blood types has a particular ability to save lives.
The majority of people (37% of the population) have the blood type O+, which is the most prevalent. This indicates that there is a greater need for this blood type for blood transfusions.