The white-crowned sparrow must listen to and memorize other adult sparrow singing. It then copies the song it hears as well as it possibly can, then compare its own song with the one it memorized. If the sparrow doesn't hear the song at an early stage, then it can't memorize it and instead it creates it's own version of the song until it hears the adult song.
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Answer:
c) nucleus
Explanation:
Monera is a kingdom that contains unicellular organisms with a prokaryotic cell organization (having no nuclear membrane), such as bacteria
Milliliter and liter for a liquid.
For a solid object, I would say meter and cubic centimeter
Answer:
Phospholipid bilayer.
Explanation:
The plasma membrane (also known as the cell membrane or cytoplasmic membrane) is defined as a biological membrane that separates the interiors of a cell from its external environment.
The plasma membrane has a function that protects the cell from its external environment, mediates cellular transport, and transmits cellular signals.
It is composed of a lipids bilayer (phospholipids and cholesterol), (phospholipid is a lipid made of glycerol, two fatty acid tails, and a phosphate-linked head group) with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules which hence, regulates the movement of substances in and out of cells. Plasma membranes is very flexible in order to allow cells change form example, red blood cells change shape as they pass through narrow capillaries.
transgenic organism has a specific desirable gene transplanted to another organism. so the first step is to identify the desirable gene. ans is D. Find a gene in one species that would be useful if added to the DNA of another species.
