Question

1. Xanthium seeds are mainly dispersal by

2.The surrounding in which an
animal naturally lives is called its
3. Name of the following has shell
4. how many bones does a skull contain
5. which of the following blood cells protect us against diseases.
6. what is heart.
7. what is ligaments.
8. Name any two animals that have thick fur on their bodies.
9. what are amphibians? Give examples
10. Name two seeds each having one cotyledon.
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Answer 1

Answer:

animals

habitat

24

white blood cells

heart is the internal organ which keeps us alive and pumps blood in our body

tissues that connect muscles to bones are called ligaments

polar bear and rabits

animals that can live both on land and in water are called amphibians. eg- frogs and salamanders.

kidney beans and gram seeds have cotyledons

Answer 2

1. zoochorus
2. Natural habitat
3. Snails and turtles and crabs and clams all have shells.
4. 14 bones
5. White blood cells, also called leukocytes, defend the body against disease.
6. The heart is a pump, usually beating about 60 to 100 times per minute. With each heartbeat, the heart sends blood throughout our bodies, carrying oxygen to every cell. After delivering the oxygen, the blood returns to the heart. The heart then sends the blood to the lungs to pick up more oxygen.
7. Ligaments are bands of tough, elastic connective tissue that surround a joint to give support and limit the joint's movement. When ligaments are damaged, the knee joint may become unstable.
8. Sea otters and polar bears.
9. Most common amphibians are frogs, toads, salamanders and caecilians. a cold-blooded vertebrate animal of a class that comprises the frogs, toads, newts, salamanders, and caecilians. They are distinguished by having an aquatic gill-breathing larval stage followed (typically) by a terrestrial lung-breathing adult stage.
10. Monocots and Dicots

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