Life does exist in the Mariana Trench, even at its deepest spots. The organisms living here are mostly a wide variety amphipods, sea cucumbers, sea anemones, etc. These organisms survive mostly by feeding off of the dead living beings on the upper layers of the Trench, which fall down to the depths as a result of gravity.
Answer:C
Explanation:
The arteries are not a cell bc that is too simple a tissue is also too simple its not a system bc arteries are not a lot of organs working together so its C
Geothermal energy = Eco-friendly
Cut down trees = not eco-friendly
Biomass instead of coal = eco-friendly
Turn lights on during the day = not eco-friendly
Carpool = eco-friendly
Compost = eco-friendly
A solution that is a 4 on the pH scale is an acid, about the acidity of tomato juice.
Answer:
e) An agent, such as a plasmid, used to transfer DNA from an in vitro solution into a living cell.
Explanation:
A cloning vector is a naked DNA that can be maintained and into which a foreign DNA can be inserted. A vector needs to be small in size, have restriction sites for endonuclease enzymes and the ability to multiply and express itself at a high rate, without disrupting the host cells machinery. Perfect cloning vectors are DNA molecules from viruses, plasmids and bacterial species such as E.Coli.
