Active transport requires energy because unlike osmosis and diffusion which are passive transport methods which sees where the particles are moving along the concentration gradient, in active transport, the particles are moving against the concentration gradient and as such energy through ATP is needed for the particles to be transported.
Topography is the rise and fall of the land (AKA B)
Answer:
The answer will be pyramid of biomass.
Explanation:
As it goes up the pyramid, the number decreases.
<span>This variation be justified by:
</span>Migration to an environment different from their birthplace, and adaptation to the available food, ultimately leading to speciation. because <span>birds use their beaks to eat.</span>.
The sun
is beacuse ti is the biggest star ever