Answer:
A. Lancelet
B. All chordates
Explanation:
A. Dorsal nerve chord is the only <u>unique feature</u> among all members of <u>phylum chordata</u> (mainly found in subphylum Vertebrata). In the given list, only lacelet is the Chordate whereas <u>snail belongs to phylum Mollusca</u>, <u>grasshopper belongs to Arthropda</u>, and <u>jellyfish belongs to Cnidaria</u>. Dorsal nerve cord runs along the length of organism's body.
B. <u>Gill slits</u> are <u>opening structures</u> to gills through which water passes from pharynx/throat to exterior. Their main purpose is to help filter the food particles available in surrounding water. Although they are typical for amphibians and fishes, chordates also possess gill slits at embryonic stages.
CHromosom is mado chromatids. Chromatids have a lot of thriplets inside. Every thriplet is one gene. Allele is also different variant of gene
Answer:
Language, hand shakes, pointing/ opening palm to guide the eyes to something
Explanation:
I would need more details before I can make one clear answer, hope this helped!
For photosynthesis you will need co2 water and sunlight to produce oxygen and glucose