Answer: The correct answer to the question is option D
SPACE OBSERVATORY
SPACE OBSERVATORY uses electromagnetic radiation to discover the properties and composition of bodies in space.
Explanation: A space observatory (Example; Telescope) is simply an instrument that is used to observe distant galaxies, stars, planets and other objects in the outer space.
Findings from space observatory enhances our knowledge of the COSMOS as they can be recorded for after study.
There is no picture or options to pick from.
Answer:
A. cnidarians
Explanation:
Comb jellies are most closely related to Cnidarians. Cnidarians are marine invertebrate organisms which make use of their cnidocytes filled with tentacles in catching preys.
They also have body parts such as the ectoderm and endoderm and a characteristic middle jelly layer called the mesoglea which is similar in a comb jelly.
Examples of Cnidarians include sea anemones and corals.
Answer:
Partial nitrate reduction results in the formation of nitrite and water
Explanation: