The light ray bends toward the normal when entering water
Answer: Interventional Study
Explanation: When a treatment group is compared to standard (control) group it is called Interventional Study
The correct answer is Lysosomes
Lysosomes are used for digestion of materials in the cell.
It produces new, organic, rich soil, that can contribute to agriculture and farming, as well as the decomposers that live in them. It is very good to compost.
Answer:
Option B
Explanation:
The presence of these structures in this stage may be a prediction of a common ancestor as these structures are not gills because they do not develop into gills in chicks and humans but being so similar to gill structures in fish at this stage in their embryo suggests that chicks and humans share a common ancestor with fish.