<span>In marine vertebrates, the gill arches use the external gas exchange. The water holds less oxygen.
The ribs in terrestrial vertebrates have enclosed respiratory surface which is inside the body and comes as paired lungs.
Kidneys are efficient in excretion of regulation of water and nitrogenous wastes. Their reproduction is normally sexual with separate sexes.</span>
Despite these similarities, prokaryotes and eukaryotes differ in a number of important ways. A prokaryote is a simple, single-celled organism that lacks a nucleus and membrane-bound organelles.
The answer is they go parasite seeing. It is Paris sightseeing.This question or joke is commonly and popularly used in punchline algebra books that can be cracked by interpreting and decoding English expressions into algebraic expressions and setting up the equations.
Answer:
2 valence electrons
Explanation:
All of the elements in group 1 have 1 valence electron, the elements in group 2 have 2 valence electrons, and so on.
Answer:
The independent variable is allowed to change and the dependent variable is held constant to see what other conditions
Explanation:
the dependent variable is what is being tested therefore it is what remains constant unlike the independent variable.
Hope this helps. let me know if im wrong.
