I believe this difference in concentration of dissolved Particles from one location to another is called a concentration gradient.
Explanation:
When we take a breath, we pull air into our lungs that contains mostly nitrogen and oxygen. When we exhale, we breathe out mostly carbon dioxide.
Answer:
Letter A
Explanation:
From the description you make, it's likely that the structure with letter A is the chloroplast. It is round and small and it's free because of the pigment needed for photosynthesis (chlorophyll). It is located inside the cell, suspended in the cytoplasm.
<span>Photosynthetic pigments, which absorbs the most sunlight is chlorophyll a.
This is the most abundant pigment in plants which absorbs visible light with wavelengths of 430nm( blue) and 662nm( red). It contains a hydrophobic phytol chain (in a lipid membrane) and a tetrapyrrolic ring (outside of the membrane) that absorbs the energy from light. At the centre of the structure is magnesium, Mg that can accept and donate e-.</span>
Answer:Organ — a group of tissues precisely arranged so that they can work together to perform specific functions. Examples include: Liver.
Explanation:
