Answer:
Pathway of air: nasal cavities (or oral cavity) > pharynx > trachea > primary bronchi (right & left) > secondary bronchi > tertiary bronchi > bronchioles > alveoli (site of gas exchange)
Explanation:
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Answer:
spider with second option (spiders have an open circulatory system.)
earthworm with first option
starfish with forth option
Explanation:
Answer:
You're answer is C - Permissive!
Explanation:
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Answer:
Explanation:
Thermal energy comes from a substance whose molecules and atoms are vibrating faster due to a rise in temperature. Heat energy is another name for thermal energy. Kinetic energy is the energy of a moving object. As thermal energy comes from moving particles, it is a form of kinetic energy.
D it allows all substances to enter & exit the cell.
