There are about 950,000 species of insects known but estimates range as high as 2-10 million which means that there are probably many species not yet known which have probably gone undetected so far in perhaps more remote parts of the world.
Answer:
Capillary smooth muscle contraction.
Explanation:
Actually, the above question in incomplete as the full question contains these choices.
- Capillary smooth muscle contraction
- Valves in lymph vessel walls
- Skeletal muscle contraction
- Breathing
The answer for this question is capillary smooth muscle contraction because lymph flow in one direction.
Valve in lymph vessels walls pushed the lymph forward and stop it from back flow.
Muscles present surrounding the lymph vessels help in flow of lymph by their massaging effect.
Deep diaphragmatic breathing helps in the movement of lymph through blood stream and increases toxins elimination.
For animals, hearing is a fundamentally important adaptation for survival, maintenance, and reproduction.
Answer:
I think it is C but i am not sure
The first layer is the cell wall.
And the second layer is the cell membrane.I think