The correct answer is: D. breathing
Lymphatic system is an open system that does not have a central pump (such as heart in the circulatory system), so the flow of the lymph is different than blood flow. Transport and movement of the lymph are slow and sporadic. Lymph flow occurs thanks to:
• peristalsis – contraction and relaxation smooth muscle tissue,
• valves- so that lymph doesn’t flow backwards along the vessels
• contraction of adjacent skeletal muscle .
Answer:
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Carbon dioxide is transported in the blood from the tissue to the lungs in three ways:1 (i) dissolved in solution; (ii) buffered with water as carbonic acid; (iii) bound to proteins, particularly haemoglobin. Approximately 75% of carbon dioxide is transport in the red blood cell and 25% in the plasma.
Answer: i think A
Explanation: the thyroid uses the calories so an overactive thyroid would use those calories more quickly, causing the person to lose energy and feel tired.
Answer:
Arthropod.
Explanation:
Arthropods have an exoskeleton & jointed limbs. Insects and some other land arthropods breathe through a system of tiny body tubes called tracheae. Some examples of arthropods are a spider or a scorpion.
Answer:
1. Hydrogen and oxygen
Explanation:
These help the plant survive.
