West?
E. Answer these questions.
1. How does a chameleon hide from its enemies?
2. What are some of the ways in which animals protect themselves?
3. In what ways does man harm animals?
4. What is migration? Why do animals migrate?
5. Why do some animals hibernate?
6. Why do some animals produce great numbers of eggs? Do these anim
protect their eggs?
7. What is a predator? Name a few.
8. How does a frog scare off a predator? What predators might these be?
Tell your teacher in your own words.
1. How animals use colour and shape to hide themselves from predators
2. Which animals hibernate and why they do so.
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Answers
1 Ans. Chameleons have several layers of skin that allow them to hide using their natural camouflage abilities. The outer layer is transparent. The layers underneath comprise colored cells that expand and contract. When the chameleon needs to change colors, his colored cells expand and contract to suit his needs.
2.ans .Teeth, horns, plates, shields, spikes, big tails—these are all what we call an animal's "defenses." Some animals give off an odor and spray (like a skunk!) to defend themselves. Other animals are prickly like porcupines and sea urchins. Animals also have behaviors they do to protect and defend themselves.
3. ans . People affect animals through four broad types of activity: (1) people keep companion, farm, laboratory and captive wild animals, often while using them for some purpose; (2) people cause deliberate harm to animals through activities such as slaughter, pest control, hunting, and toxicology testing; (3) people cause .
4 . ans. Animal migration is the large-scale movement of a species from one place to another. Most species migrate during specific seasons, in search of food or water, or for mating reasons.
5. ans. During hibernation, an animal's body temperature, heart rate, breathing, and other metabolic activities slow down significantly in order to conserve energy. While resources are scarce, hibernation allows animals like bears, chipmunks, and bats to use their stored energy much more slowly
6. ans. Animals need to reproduce to prevent their species from extinction. Animals reproduce by laying eggs or giving birth. Different animals have their own ways to ensure the survival of their species. Animals that give birth to their young nurture and care for their babies.
7.ans . Some examples of predator and prey are lion and zebra, bear and fish, and fox and rabbit. The words "predator" and "prey" are almost always used to mean only animals that eat animals, but the same concept also applies to plants: Bear and berry, rabbit and lettuce, grasshopper and leaf.
8. ans. Most rainforest frogs have pads of sticky hairs on their fingers and toes, as well as, loose sticky skin on their bellies, that make them great climbers to escape their predators. ... A frog can change the colour of its skin depending on its surroundings. Humans have become a major danger for amphibians of all types.