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White blood cells help the body fight infection.
Platelets help the blood to clot.
Plasma is the liquid part of blood and it carries nutrients, hormones, and waste products.
Other interesting facts about blood:
Blood is slightly sticky and it is always moving around the body.
The color of blood is determined by the amount of oxygen it is carrying. Oxygenated blood is bright red, while deoxygenated blood is dark red.
Blood type is determined by the presence or absence of certain antigens on the surface of red blood cells. There are four main blood types: A, B, AB, and O.
Blood transfusions are used to replace lost blood or to treat certain medical conditions.
Blood can be donated to help people who are sick or injured.
Blood is an essential part of our body and it plays a vital role in our health and well-being.
WORDLIST:
average – средний
main components – основные компоненты
red blood cells – эритроциты
white blood cells – лейкоциты
platelets – тромбоциты
plasma – плазма
carry oxygen – переносить кислород
lungs – легкие
rest of the body – остальное тело
fight infection – бороться с инфекцией
clot – сворачиваться
liquid part – жидкая часть
nutrients – питательные вещества
hormones – гормоны
waste products – отходы
slightly sticky – слегка липкий
is determined by – определяется
oxygenated – насыщенный кислородом
deoxygenated – обедненный кислородом
presence – наличие
absence – отсутствие
certain antigens – определенные антигены
surface – поверхность
blood transfusions – переливание крови
treat – лечить
certain medical conditions – определенные медицинские состояния
sick or injured – больные или раненые
essential – жизненно важный
well-being – благополучие
DOLPHINS
Fascinating Facts About Dolphins
Dolphins are not fish, but mammals. They are warm-blooded, give birth to live young, and nurse their young with milk.
Dolphins are highly intelligent animals. They have a complex social structure, and they communicate with each other using a variety of clicks, whistles, and body gestures.