A. Tick (✔) the correct option: 1. _______ are reptiles that have no limbs. (a) snakes (b) lions (c) birds 2. Insects breathe through: (a) spiracles (b) gills (c) moist skin 3. Which organ helps a fish breathe? (a) lungs (b) gills (c) nose 4. Dolphin and whale breathe through the: (a) moist skin (b) spiracles (c) blowhole 5. A series of tiny holes along the sides of the bodies of insects is called: (a) spiracles (b) gills (c) shells Answer in one word or phrase:
Answer (1)
Let's go through each of the questions one by one and select the correct options:
_______ are reptiles that have no limbs.
(a) snakes
Answer: Snakes are reptiles that do not have limbs. They are elongated, legless reptiles with scales covering their bodies. They use their muscles and scales to move.
Insects breathe through:
(a) spiracles
Answer: Insects breathe through a system of tiny holes called spiracles. These spiracles are connected to a network of tubes called tracheae that distribute oxygen throughout the insect's body.
Which organ helps a fish breathe?
(b) gills
Answer: Fish have gills, which are specialized organs for breathing. Gills take in oxygen from water and expel carbon dioxide, allowing the fish to breathe underwater.
Dolphin and whale breathe through the:
(c) blowhole
Answer: Dolphins and whales breathe air like land mammals. They have a blowhole on top of their heads through which they inhale and exhale air when they come to the water's surface.
A series of tiny holes along the sides of the bodies of insects is called:
(a) spiracles
Answer: These tiny holes are spiracles. They allow insects to breathe by connecting to internal air tubes that distribute air throughout the insect’s body.
