D. answer the following questions
1.List the different kinds of substances that need to be transported with in a living body .
2.name the three kinds of blood vessels found in humans .
3. differentiate between arteries and veins.
4. what is the circulatory system? name the main organs of the human circulatory system.
5. what is blood ?what is it made up of ?
6. what is pulse ?
7. name the four Chambers of the heart.
8. list the various things that need to be transported with in a plant body
9. differentiate between xylem and phloem.
10. define excretion. name the main organs of the human excretory system.
11. what are the waste that get created inside an animal body?
12. how does the human body get rid of its wastes?
13. name any three wastes as excreated by plants.
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Answers
1. The different kinds of substances that need to be transported in a living body are food, oxygen, water, minerals and waste products.
2. There are three kinds of blood vessels: arteries, veins, and capillaries. Each of these plays a very specific role in the circulation process. Arteries carry oxygenated blood away from the heart.
3.Arteries are blood vessels responsible for carrying oxygen-rich blood away from the heart to the body. Veins are blood vessels that carry blood low in oxygen from the body back to the heart for reoxygenation.
Answer:
1. oxygen, carbon dioxide, nutrients, water
2. arteries, veins and capillary
3. arteries-
carry blood away from heart.
has thicker and elastic wall.
blood flows with greater pressure
veins-
carry blood towards the heart.
has thinner and less elastic wall.
blood flows with lesser pressure
4. It is the system of transportation of blood throughout the body
the main organs are
heart, blood vessels and lungs
5. Blood is a red coloured viscous fluid.it is fluid connective tissue
it is made up of RBC,WBC,plasma and platelets
6. pulse is the measurement of the pressure of arteries
7. right auricle, right ventricle, left auricle and left ventricle
8.water , minerals and food
sorry I can't answer anymore becuz my hand has been injured
extremely sorry