Blood

Q.

Enumerate the structural differences between white blood cells and red blood cells.

Q.

The shape of RBC is _____.

1. oval

2. elliptical

3. biconcave

4. square

Q.

What is the colour of a cell?

Q. In class Aves, forelimbs are modified into

1. digits
2. claws
3. wings
   
4. scales

Q. _______ is the functional unit of respiratory system where exchange of gases takes place.

1. Nephron
2. Goblet cell
3. Alveoli
4. Goblet duct

Q.

Name the cartilaginous flap which closes the glottis to check the entry of food into it during swallowing.

Q.

What happens when the system of blood vessels develops a leak?

Q. The excretory system of leech consists of ___ of nephridiopores.

1. 17 pairs
2. 27 pairs
3. 7 pairs
4. 37 pairs

Q.

How alveoli similar to villi

Q.

Why would a red blood cell burst in the water?

Q. _________ is a pouch connected to the junction of small and large intestine in mammals.

1. Anus
2. Caecum
3. Duodenum
4. Jejunum

Q. Homologous organs are those that show similarity in

1. Appearance
2. Function
3. Origin
4. Size

Q.

Mammals have heterodont dentition with different types of teeth that are not specialized to match specific eating habits.

1. False

2. True

Q.

Palm finger eye stomach elbow arrange the sequence according to size ?

Q. Which organism among the following does not have a backbone?

1. Cheetah
2. Earthworm
3. Squirrel
4. Bat

Q. The scientific name of Indian cattle leech is:

1. Hirudinaria granulosa
2. Hirudinaria gallus
3. Hirudinaria garnettii
4. Hirudinaria hirudinae

Q.

What is the scientific name of a mouse?

Q.

write a detailed note on anus.

Q. The gaps present between the teeth of rabbit is called ______.

1. diastema
2. triastema
3. tooth space
4. jaw space

Q.

Mention any three functions of blood.

Q.

Given below are certain structure, write their chief functional activity.
(a) Blood platelets
(b) Neutrophils
(c) Erythrocytes
(d) Lymphocytes
(e) Bone marrow

Q.

Which of the following blood component is responsible for clot formation?

1. White Blood Cells

2. Glucose

3. Red Blood Cells

4. Platelets

Q.

The process of cutting of food, crushing it by our teeth in the mouth and mixing it with saliva to make it wet and slippery is known as___.

1. Both A and R are incorrect

2. A is incorrect and R is correct

3. A is correct and R is incorrect

4. Both A and R are correct

Q. In fishes, a -chambered heart pumps deoxygenated blood to the , and this blood gets oxygenated and moves directly to all the body parts.

1. lungs
2. gills
3. spiracles
4. two
5. three

Q.

What is meant by vascular connective tissue?

Q. Which of the following is true about the scientific names of animals?

1. Scientific name of a particular species differ from one region to another.
2. Scientific name of a particular species is universal.
3. Scientific names do not follow the system of binomial nomenclature.
4. Scientific name is the same as common name of a species.

Q. In which part of the body are the RBCs produced?

1. Thymus
2. Bone marrow
3. Kidney
4. Lungs

Q. Question 4
Why is the transport of materials necessary in a plant or in an animal? Explain.

Q.

Blood vessels that connect arteries to veins are called:

1. Muscles

2. Neurons

3. Capillaries

4. Nephrons

Q.

Which of the following component is produced from megakaryocytes?

1. Red Blood Cells

2. White Blood Cells

3. Platelets

4. Plasma