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Animals (Reproduction sara alsalem (Fertilization occurs when the sperm…
Animals
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habitat sama alsaud
Animal bodies have a variety of adaptations, such as those for feed- ing, digestion, and support.
Vertebrates and invertebrates live in oceans, in freshwater, and on land
Movement sama alsaud
Some animals are stationary as adults, yet most have a body form that can move during some stage
of development
The evolution of nerve and muscle tissues enables animals to move in ways that are more complex and faster than organisms in other king- doms
support haifa alblaihed
Animals that have an external support are called invertebrates, their body is covered with exoskeletons , which are hard or tough outer covering. It protects their soft body tissues, prevent water loss, and provide protection from predators.
Animals that have an internal support are called vertebrate , their body has an endoskeleton that grows with the animal. The material making up the endoskeleton varies. , Sea urchins and sea stars have endoskeletons made of calcium carbonate, sharks have endoskeletons made of cartilage.