Name the locomotory organ of Amoeba.
The locomotory organ of Amoeba is pseudopodia.
What are the body parts of a snake?
The body parts of a snake include head, trunk, tail, scales, and fangs (in venomous species).
Which structure helps the bird to change its direction while flying in air?
The structure that helps the bird to change its direction while flying in the air is its tail.
[VI] Answer briefly.
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Differentiate between unicellular and multicellular organisms.
Unicellular organisms are made of a single cell and perform all functions within that cell, whereas multicellular organisms are made of many cells, with different groups of cells or organs carrying out various functions.
Write the adaptive features of polar bear and penguin.
Polar bears have thick fur and a layer of fat for insulation, while penguins have a layer of blubber and dense feathers to survive in cold conditions.
Mention the features that help a bird to fly is the air?
Features that help a bird to fly in the air include hollow and lightweight bones, streamlined body shape, powerful chest muscles for wing flapping, and feathers for lift and control.
What are the adaptations seen in different types of vertebrates?
Different types of vertebrates have various adaptations suited to their habitats, such as streamlined bodies and fins in fish for swimming, limbs for terrestrial movement in amphibians and reptiles, wings for flight in birds, and specialized sensory organs and camouflage in mammals.
[VII] Answer in detail.
Describe the various features which help camel dwell well in the desert.
Camel Adaptations for Desert Survival: Camels are well-adapted to survive in the harsh desert environment due to several features:
- Long Legs: Camels have long legs, which elevate their bodies above the hot desert sand, reducing heat absorption.
- Water Storage: They can drink large amounts of water (when available) and store it in their bodies, enabling them to survive for extended periods without water.
- Water Conservation: Camels have adaptations to conserve water, such as passing small amounts of concentrated urine, producing dry dung, and minimizing sweat.
- Fat Storage: Their humps store fat, which can be metabolized into water and energy when needed during long periods without food or water.
- Padded Feet: Camels have large, flat padded feet that distribute their weight and allow them to walk easily on soft desert sand.
- Protective Features: They have long eyelashes and nostril openings that can be closed to protect against blowing sand and dust.
- Temperature Regulation: Camels can withstand large fluctuations in body temperature, allowing them to survive in both hot days and cold nights of the desert.
- Adapted Diet: Their specialized digestive system can extract nutrients from tough, thorny desert plants.
