1. What do you mean by environment?
2. What causes environmental changes?
3. Define adaptation.
4. Differentiate between hydrophytes and xerophytes.
5. Name two ways in which a camel conserves water.
6. What adaptations would you observe in aquatic animals?
7. What adaptations are present in a mesophytic plant?
II. Fill in the blanks.
1. Leaves of mesophytic plants have
on both surfaces.
2. Birds have different types of
due to different eating habits.
3. Leaves are reduced to spines in
4.
Bones of birds are
to reduce body weight.
5. The body of aquatic animals is compressed
1. Mark the following true or false.
1. Environment does not affect humans.
2. Birds have fins to fly.
fodramation
Answers
Answer:
1 : the circumstances, objects, or conditions by which one is surrounded
2.Environmental change is a change or disturbance of the environment most often caused by human influences and natural ecological processes.
3.“Adaptation is the physical or behavioural characteristic of an organism that helps an organism to survive better in the surrounding environment.” Living things are adapted to the habitat they live in.
4.Xerophytes are the plants adapted to grow in areas with with little or no water and hydrophytes are those plants which are adapted to grow in moist regions or we can say places where water is available. Plant adapted to live in dry conditions
5.Another thing that helps camels conserve water are their nasal passages. When people exhale, they lose a lot of water vapor, as any fogged up car window will prove. Camels have extra dry nasal passages which actually recondense the water out of each breath, allowing much less to escape
6.Oxygen is transferred from water through organs called gills in fish, sharks, and rays. Lastly, aquatic animals have lots of adaptations for moving in the water, like a streamlined design, flippers, and a swim bladder, which acts like a ballast for the fish.
7.Mesophytes do not have any specific morphological adaptations. They usually have broad, flat and green leaves; an extensive fibrous root system to absorb water; and the ability to develop perennating organs such as corms, rhizomes and bulbs to store food and water for use during drought.
Explanation:
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