Answer:
They hibernate in winter and usually breed in spring.
Explanation:
Answer:
A
Explanation:
Water flows from area of low solute concentration (aka hypotonic solution) to an area of high solute concentration (aka hypertonic solution).
Answer:
<em>Open </em><em>circulatory </em><em>system</em><em> </em><em>is </em><em>the </em><em>system </em><em>that</em><em> </em><em>is </em><em>primarily</em><em> </em><em>found </em><em>in </em><em>invertebrates.</em>
Answer: Because each one of them helps other organs, cells, etc.. Because everything in your body needs to work together. For example, one of the most important functions of organ systems is to provide cells with oxygen and nutrients and to remove toxic waste products such as carbon dioxide.
The particles are moving in a Passive Transport which it does not use energy.