Answer: c) and b) are correct.
The brain is encased in a protective bony or cartilaginous housing in craniates.
The anterior end of the nerve cord is elaborated to form a brain in craniates.
Explanation: The craniates include the chordata with well-defined heads. This includes mammals, reptiles and fishes. So we can discard the other answers. Because most craniates have functional jaws, and the adults do not lose their chordate characteristics. The last one does not apply as a specific feature because the tunicate have neural crest but are not recognized as craniata.
No, you should not give aspirin to a person if the have a painful, bleeding injury to the nose. Because aspirin thins the blood and cause you to bleed that much more.
Simple. Air has mass. And if air has mass it also has weight. You can feel air when the wind blows. Or do an experiment. Weigh an empty container. Then pump it to a vacuum. Weigh it again. The difference is the weight of the air inside.
Answer:
They are rovers that are made to study Mars. For example, they can analyze the martian soil.
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Explanation:
Answer:
it helps come up with a conclusions for variety of hypothesis that are created when studying environmental science. the scientific method is a way to test a hypothesis
