EVOLUTION
THE ORIGIN OF LIFE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Animals have complex organ systems and reproduce sexually.
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Animals have prokaryotic cells and are multicellular.
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Animals have external digestion and are vertebrates.
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Animals have rigid cell walls and specialized tissues.
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Detailed explanation-1: -Which of the following best describes the characteristics that differentiate animals from the organisms of other kingdoms? Animals have rigid cell walls and specialized tissues.
Detailed explanation-2: -Even though members of the animal kingdom are incredibly diverse, animals share common features that distinguish them from organisms in other kingdoms. All animals are eukaryotic, multicellular organisms, and almost all animals have specialized tissues. Most animals are motile, at least during certain life stages.
Detailed explanation-3: -Organisms are classified into kingdoms based on their defining characteristics. Which of the following statements correctly compares the animal and plant kingdoms? Animal cells lack a cell wall; plant cells have a cell wall.
Detailed explanation-4: -Answer and Explanation: The characteristic of animals that distinguishes them from other eukaryotes is that they are heterotrophs.
Detailed explanation-5: -Plants are all multicellular and consist of complex cells. In addition plants are autotrophs, organisms that make their own food. With over 250, 000 species, the plant kingdom is the second largest kingdom.