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.
Explanation:
A common way to clear icy roads is to apply a layer of salt, which lowers the freezing temperature of water and melts the ice.
Chara 27.3 light years
Tau Ceti 11.9 light years
Zeta Leporis 70.2 light years
Epsilon Reticuli 59.5 light years
The answer is Tau Ceti.
C would be the best choice
Dark occur in the stroma, and do not use light energy
1. The plant should not have leaves. To prevent transpiration from taking place
2. Plant should be well watered. Plants need water
3. Put some Vaseline to seal open gaps. This prevents water evaporation
Unfortunately I don't have the 4th one :/