Answer:
Ecological and ethological approaches to the study of behaviour. The natural history approach of Darwin and his predecessors gradually evolved into the twin sciences of animal ecology, the study of the interactions between an animal and its environment, and ethology, the biological study of animal behaviour.
Answer:
Waves interact with matter in several ways. The interactions occur when waves pass from one medium to another. Besides bouncing back like an echo, waves may bend or spread out when they strike a new medium. These three ways that waves may interact with matter are called reflection, refraction, and diffraction.
Explanation:
Vertebrae/Backbones I think.
Answer:
cell membrane
Explanation:
The cell membrane allows the cell to stay structurally intact in its water-based environment.
<span>Once collected, lymph ultimately drains into venous circulation.
<u />Lymph goes from terminal lymphatic ducts into venous circulation through the subclavian veins.
Lymph is not filtered or detoxicated yet at this point, and it doesn't go to arterial circulation because that would just distribute it all over the body, instead of just the heart.
</span>
