Watch this video about how Thai fishermen have adapted their eyesight to an underwater environment. If you were a scientist researching the eyesight of these Thai fishermen, what are four scientific questions you would ask to guide your research?

Option A : the fern transitined from gametophyte generation to sporophyte generation.

A spring is a natural discharge point of subterranean water at the surface of the ground or directly into the bed of a stream, lake, or sea. Water that emerges at the surface without a perceptible current is called a seep. Wells are holes excavated to bring water and other underground fluids to the surface.

The image shows a cross-section of land scape.

Need this store of protein: 

The seed consists of three components: embryo, endosperm (sometimes perisperm), and seed-coat. Both endosperm and embryo are the products of double fertilization, whereas the seed-coat develops from the maternal, ovular tissues. The seed habit is a significant advancement in the evolution of higher plants.

Anatomy of seed :-

Seed storage proteins provide a source of amino acids and reduced N necessary for germination and early growth of the seedling.

A scientist look for in a plant that would identify it as a club moss rather than a liverwort.

Chromosome DNA Diploid EggGamete Haploid Meiosis Replication Sexual Reproduction Sperm..
This is an organism or cell with two sets of chromosomes.
This is a haploid cell with half the reproductive information from the parent.
This is a cell or organism having half of the diploid chromosome number, symbolized by "n".

when soaked in dilute sodium chloride solution onion gain mass because of the process of osmosis.

 Explanation: Osmosis is a process when there is movement of water from the region of comparatively higher concentration to the region of lower concentration across in a permeable membrane.

Example with explaination :

Answer: Tornadoes form when warm, humid air collides with cold, dry air. The denser cold air is pushed over the warm air, usually producing thunderstorms.

The lining of the trachea consists of a type of tissue called pseudostratified (ciliated) columnar epithelium.

He solved Ptolemy's model by providing elliptical orbits.he determined that planets travels faster when closer to sun.

Air is thinner at higher altitudes which means there are fewer oxygen molecules per volume of air. This means that when athletes train at these high altitudes, their body produces more red blood cells. These extra blood cells stay in the body for up to 20 days.