Answer:
Level 1...Plants and algae make their own food and Plants and algae make their own food and are called producers.
Answer:
The cold, northern currents then flow in a rotating current system called the North Atlantic subpolar gyre, of which the Labrador Current is the southward flowing component.
OR
The Gulf Stream is an intense, warm ocean current in the western North Atlantic Ocean. It moves north along the coast of Florida and then turns eastward off of North Carolina, flowing northeast across the Atlantic.
Explanation:
Idk if this is right but hopefully it is...
Answer:
The cell wall is like the integumentary system of the human body because they both protect the interior from the external environment.
Explanation:
Answer:
D
Explanation:
The water molecules in the cell will want to move out of the cell into the pond in attempt to lower the salt concentration which will cause the cells to shrivel up with the loss of water. This is also called becoming hypertonic.
Answer:
B) stain only the thicker peptidoglycan cell walls
Explanation:
Gram staining is a technique which was developed by the Hans Christian Gram in 1884 to distinguish the bacterial strains. Based on the colour absorbed and retained by the bacteria, the bacteria are distinguished either as gram-positive or gram-negative.
He used a colour stain- crystal violet which is a positive dye and binds to the cell wall made of peptidoglycan. The crystal violet binds to the cell wall with the help of a mordant called iodine. If this dye retains inside and the cell appears purple then the cell is considered gram-positive else negative.
Thus, Option-B is correct.
