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Common characteristics of animals: cells do not have a cell wall; Living in a heterotrophic way, i.e., the main nutrients come from organisms other than themselves; Can move autonomously (not necessarily physically moving).
Common characteristics of plants: cells have a cell wall; Living in an autotrophic way, that is, the main nutrients come from self-synthesis; Usually unable to move independently.
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The way of life is different: plants are photosynthesized, animals are dependent on other organisms for life.
The anemone cannot move and can only move in hermit crabs, but it is indeed an animal.
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Of course. Animals: to eat, to be oxygen.
Plants: Oxygen, water, sunlight.
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Animals: Eat.
Plants: Oxygen is needed.
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We all need oxygen, water, sunlight...
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Common characteristics of animals: progressive, phased, adaptive.
1. Progressiveness: The progressive development of organisms from less to more, from low to high, from simple to complex. Such as primitive invertebrates from the beginning.
After that, vertebrates appeared, and finally humans.
2. Phases: biological evolution.
It is a phased development that combines discontinuity and continuity. It is said that the evolution of living things is discontinuated because every stage of evolution from invertebrates to vertebrates is discontinuous. In the case of species of horses, from the beginning of the horse to the gradual new horse, the middle new horse, the new horse, and the modern horse, these are also intermittent manifestations.
It is said that biological evolution is continuous, because there is a certain connection between various organisms, and there is no absolutely clear and fixed boundary.
A large group of living organisms is divided into 6 levels according to the various characteristics of animals (morphology, cell, genetics, physiology, ecology and geographical distribution, etc.), namely phylum, class, order, family, genus, and species. The first animal origin of the earth is the ocean, and it has evolved and multiplied from the lower to the higher, from the simple to the complex. Scientists divide the extant animals known to humans into two categories: invertebrates and vertebrates.
More than 46,900 species of vertebrates have been identified. Including carp, yellow croaker and other fish animals, snakes, lizards and other reptiles.
Animals, frogs, baby fish.
and other amphibians, birds as well as mammals such as red pandas. Wait.
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Common characteristics of animals and plants:
Animals and plants are living organisms, both have life characteristics, metabolism, growth and development, reproduction, genetic variation, aging and death; Animals and plants are the products of the evolution of nature, which arise with nature and eventually disappear; Animals and feast plants are equal, there is no distinction between high and low, and the essence of life is the same; There is a close connection between animals and plants.
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What humans have in common with plants and animals: they are all living things, with the basic characteristics of living things, namely:
1. They all have the same material and structural basis, and they are all made of cells. Cells are their basic unit.
2. They all have the characteristics of metabolism.
3. They all have the characteristics of hypothetical heredity, variation and rent stimulation.
4. They all have the characteristics of growth, development and reproduction.
5. They can adapt to the environment and affect the environment, and people may also transform the environment.
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What humans have in common with plants and animals: they are all living things, with the basic characteristics of living things, namely:
1. They all have the same type of material basis and structural basis, and they are all made of cells. Cells are their basic unit.
2. They all have the characteristics of metabolism.
3. They all have the characteristics of heredity and deficiency.
4. They all have the characteristics of growth, development and reproduction.
5. They can adapt to the environment and affect the environment, and people may also transform the environment.
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Plants are generally made up of roots, stems, leaves, flowers, and fruits, and the simplest plants have only one cell. Animals have a head, neck, limbs, trunk and tail, and are higher animals.
In general, plant reproduction is based on seeds, spores, and nutrients. Animals, on the other hand, reproduce through reproduction, ovoviviparous, viviparous lactation, etc.
The cells of plants have chloroplasts, which can carry out photosynthesis, and photosynthesis is the simplest basal metabolism. There are no chloroplasts in the animal's body, and it is also unable to carry out photosynthesis, it can only obtain some nutrients through the outside world and metabolize them.
The body of plants is made up of waste products, which many people may not understand, and it is mostly excreted through dry branches and fallen leaves. Animals, on the other hand, excrete waste products from their bodies through their own excretion.
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