Answer:
the two organelles found only in plants include chloroplasts and cell wall.
Explanation:
cell wall is the outermost boundary in most plant cells while animal cells lack it .but the cell wall of plant cells is different from that of prokaryotic cell wall, both in structure and chemical composition.CELL WALL prevents the osmotic lysis of plants and provides them a definite shape. another organelle found only in plants is the CHLOROPLAST. choloroplasts are the type of plastids which are not found in animal cells .choloroplast contain a green pigment called chlorophyll which halp in PHOTOSYNTHESIS. in adition to these plants also contain GLYOXYSOMES and a large "centeral" vacuole which is present in animal cells but it is of small size and pushed towards periphery due to nucleus.
Answer:
True.
Explanation:
Staphylococcus aureus is a bacteria that can be in the skin, nose, mouth, under the armpits, or on skin folds, but that is harmless unless that it enters the body through a cut or open wound. Once inside the body, the bacteria can cause different types of infections. These infections can be small ones or big ones such as pneumonia, meningitis, or endocarditis. The bacteria spread from one person to another by skin to skin contact or by being in touch with contaminated surfaces. That is why we should avoid touching dirty places, and we should wash our hands periodically.
When an environment is hypotonic, the cell has more solute, so solvent moves from outside the cell to inside, causing the cell to swell.
WHAT IS TONICITY:
- Tonicity refers to the ability of a solution to cause the inflow or outflow of water in a cell. Tonicity of a solution can either be: hypotonic, hypertonic or isotonic.
- Hypotonic: This is when a solution has less concentration of solute or more concentration of water than its surroundings.
- Hypertonic: This is when a solution has more concentration of solute or less concentration of water than its surroundings.
- Isotonic: This is when the solute concentration between a solution and a cell is balanced or equal.
Based on osmosis, which is the movement of water from a region of higher concentration to a region of lower concentration through a semipermeable membrane, water will move from a hypotonic environment into a cell containing more solute.
Therefore, When an environment is hypotonic, the cell has more solute, so solvent moves from outside the cell to inside, causing the cell to swell.
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Carbon dating is a process that estimates the age of anything. However, there are flaws that exist. It may not be a precise number, but it does gives a good estimation.
