Answer:
Active uptake (which I think you mean active transport) is important when the concentration gradient is against that of a certain substance, so it doesn't cross the membrane through diffusion or passive transport. It is sometimes necessary if a substance needs to move across a membrane but can't do so due to electrical charge or that there is a substance on the other side of the membrane preventing diffusion.
Explanation:
Its good to give healthy food to your body.
You really get hungry and grumpy when you dont get any food in your body
i hope this helps
<span>Most vulnerable side is the ventral because in the dorsal side there is the backbone. Most of the harder bones are on the dorsal side. So then the ventral side also known as the belly side is more vulnerable and softer.Sorry I took Forever LOL</span>
<span>Heterotrophs, organisms that must get energy from food indirectly from sunlight or inorganic substances, go through the process of cellular respiration to get the energy needed.</span>
