Q4) Answer the following:
a) Explain the adaptive features of plant to survive in water.
b) What are predators?
c) Why do deer have eyes on the side of their head?
d) What is a habitat?
e) How do camouflage is helpful for lion to survive in grassland.
f) Differentiate between biotic and abiotic components of an environment.
g) . Why, the shape of leaves of conifer tree is like a needle?
h) How does the streamlined body helpful in the movement of animals that swims in water?
i) What is the function of setae in earthworm?
j) Why does yak have thick fury skin?
k) What is locomotion?
l) Why the bones of birds are hollow?
PLEASE ANS THIS QUESTION THIS IS OF CLASS 6 AND PLZ POST REVELENT ANSWER ONLY...
Answers
Answer:
a) Aquatic plants require special adaptations for living submerged in water, or at the water's surface. The most common adaptation is the presence of lightweight internal packing cells, aerenchyma, but floating leaves and finely dissected leaves are also common.
b) A predator is an organism that eats another organism. The prey is the organism which the predator eats. Some examples of predator and prey are lion and zebra, bear and fish, and fox and rabbit. ... Predator and prey evolve together.
c) Animals with eyes that are located on the side of its head would suggest a prey animal. Side eye placement allows for greater peripheral or side vision. This enables the animal to see predators approaching from the side as well as from behind.
d) the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical manifestation of its ecological niche.
e) The skin colour of the lion camouflages with the yellow colour of the grass. This helps them to catch their prey. They have a strong sense of smell which helps them to sense their prey.
f) abiotic components are non-living chemical and physical factors in the environment which affect ecosystems. Biotic describes a living component of an ecosystem; for example organisms, such as plants and animals. Examples Water, light, wind, soil, humidity, minerals, gases.
g) 1) Needle shape helps the leaves to retain moisture, preventing water loss as the stomatas are sunken and tightly packed in needle like leaves. 2)Needle shape gives them ability to shed snow as pine trees are found in cold regions. Trees such as pines, spruce, etc.
h) A streamlined body is a shape of body that reduces resistance when moving. ... Some animals, such as sharks and dolphins, are streamlined so that they have less resistance when swimming in water
i) Segmentation can help the earthworm move. Each segment or section has muscles and bristles called setae. The bristles or setae help anchor and control the worm when moving through soil. The bristles hold a section of the worm firmly into the ground while the other part of the body protrudes forward
j) Yak and polar bears have thick fur so as to save them from the extremely cold temperature of the cold regions. It acts as an insulator and traps heat which makes them feel warm in the biting cold.
k) movement or the ability to move from one place to another.Some modes of locomotion are self-propelled, e.g., running, swimming, jumping, flying, hopping, soaring and gliding.
l) Hollow bones are also called pneumatized bones, meaning they're filled with space for air. It is thought that this structure helps with oxygen intake during flight. Air sacs are attached to the hollow areas in a bird's bones. ... This adds more oxygen to the blood, providing a bird with extra energy for flight.
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