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Answers
Answer:
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Explanation:
1:A habitat is the natural home or environment of a plant, animal, or other organism. It provides the organisms that live there with food, water, shelter and space to survive. Habitats consist of both biotic and abiotic factors.
2:Oxygen and carbon dioxide gases are exchanged through a network of tubes called tracheae. Instead of nostrils, insects breathe through openings in the thorax and abdomen called spiracles. Insects that are diapausing or non-mobile have low metabolic rates and need to take in less oxygen.
3:seasonal movement of animals from one region to another.India is a winter home for most of the Siberian birds such as Siberian Cranes,Greater Flamingo and Demoiselle Crane, also numerous species of birds from other region of the world. These beautiful birds migrate to India every year during the winter and summer season for food, breeding and nesting.
4:Whales and dolphins are mammals and breathe air into their lungs, just like we do. They cannot breathe underwater like fish can as they do not have gills. ... After each breath, the blowhole is sealed tightly by strong muscles that surround it, so that water cannot get into the whale or dolphin's lungs.
5:Fish swim by flexing their bodies and tail back and forth. Fish stretch or expand their muscles on one side of their body, while relaxing the muscles on the other side. This motion moves them forward through the water. Fish use their back fin, called the caudal fin, to help push them through the water.
6:The three diets of animals include creatures that eat only plants, those that eat only meat, and animals that eat both plants and meat. Animals that eat plants exclusively are herbivores, and animals that eat only meat are carnivores. When animals eat both plants and meat, they are called omnivores.
7:Like mammals, birds take in air and extract oxygen from it to supply body tissues, while fish respiration depends on getting the oxygen dissolved in water through organs called gills. ... Oxygen is taken in and exchanged for carbon dioxide waste in the blood, then the carbon dioxide is moved out; so far, much like mammals.
8:Most everyone is aware of at least some of the differences between birds and mammals. Whereas birds have feathers, lack teeth and lay eggs, mammals have fur or hair for insulation, possess teeth and give birth to live young.
Answer:
1. A habitat is a place where an organism makes its home. A habitat meets all the environmental conditions an organism needs to survive.
2. Insects does not have lungs to breathe, so they breathe through the tiny pores in their body called trachea. This can be proved by, If we rub vaseline on a cockroach's body it will die after sometime due to inefficiency of air.
3. seasonal movement of animals from one region to another is known as migration. e.g,- Siberian crane
4. Fishes breathe in the oxygen dissolved in water through gills.
Whereas, whales are mammals who have lungs and breathe in air by coming out of the water surface.
5. Fish swim by flexing their bodies and tail back and forth. Fish stretch or expand their muscles on one side of their body, while relaxing the muscles on the other side. This motion moves them forward through the water. Fish use their back fin, called the caudal fin, to help push them through the water.
6. Herbivores feed on grass, small bushes, herbs, and leaves of trees which mainly consists of cellulose.
Carnivores feed on flesh of other animals ( mainly herbivores), they have sharp canines to tear the flesh of its prey.
7. All mammals have lungs that are the main organs for breathing. Lung capacity has evolved to support the animal's activities. During inhalation, the lungs expand with air and oxygen diffuses across the lung's surface, entering the bloodstream. During exhalation, the lungs expel air and lung volume decreases. During inhalation, the diaphragm is contracted which increases the volume of the lung cavity. During exhalation, the diaphragm is relaxed which decreases the volume of the lung cavity.
Birds can breathe through the mouth or the nostrils (nares). Air entering these openings (during inspiration) passes through the pharynx & then into the trachea (or windpipe). The trachea is generally as long as the neck.
8. Most everyone is aware of at least some of the differences between birds and mammals. Whereas birds have feathers, lack teeth and lay eggs, mammals have fur or hair for insulation, possess teeth and give birth to live young. Although birds are more closely related to reptiles than mammals, birds and mammals have several characteristics in common.
Warm-Blooded
Both birds and mammals are warm-blooded, which means they can maintain a constant body temperature and do not need to rely on an external heat source to stay warm. This similarity lends itself to several other commonalities, such as similar caloric requirements by weight and the ability to remain active in colder temperatures. Cold-blooded animals, such as reptiles, do not have to eat as much, but they also cannot survive colder temperatures. Being warm-blooded also gives birds and mammals the unique ability to live on any landmass on Earth.
Vertebrates
All mammal and bird species are classified as vertebrates, meaning they have backbones and skeletal systems made of bone. Birds, however, have hollow bones with a crisscrossed matrix for added strength. The hollow bones are lightweight, which allows the bird to take flight, while the structural matrix adds strength to withstand the pressure of taking off and landing.
Heart
Birds require a lot of energy in order to fly. This also necessitates a circulatory system that is both efficient and effective, so they have evolved a four-chambered heart with two atria and two ventricles, just like mammals. One of the main benefits of this type of circulatory system is that it allows the separation of oxygenated and deoxygenated blood. Other species of animals, such as reptiles, have hearts with fewer chambers, which means both oxygenated and deoxygenated blood have to travel through some of the same chambers — a much less efficient model.
Blood
The blood of birds and mammals contains both red and white blood cells, called erythrocytes and leukocytes respectively. The red blood cells in both classes of animals contain hemoglobin, a protein containing iron that is responsible for oxygen transport and gives blood its red color. While both classes have erythrocytes, mammals' erythrocytes lack a nucleus, while the erythrocytes of birds do have nuclei. The leukocytes of both classes function in immune regulation.
Caring for Young
Another similarity between birds and mammals is that both classes care for their young after they're hatched or born. The length of time varies from species to species, depending on the age that the young are first able to take care of themselves. Female mammals feed their young by lactating, while feed their young beak to beak.
Explanation:
below is the process of how mammals breathe (please refer to answer 7)
