Answer:
Bacteria play a central role
Explanation:
Nitrogen-fixing bacteria, which convert atmospheric nitrogen to nitrates. Bacteria of decay, which convert decaying nitrogen waste to ammonia. Nitrifying bacteria, which convert ammonia to nitrates/nitrites.
Answer:
organisms, radial symmetry is useful because the animal can just "sit down" and grab food or detect threats from all directions.
Explanation:
Answer:
myosin
Explanation:
A single myosin molecule consists of two intertwined polypeptides
Osmosis means the net movement of water molecules from a region of higher water potential to a region of lower water potential, through a partially permeable membrane.
Osmosis is different to diffusion as osmosis is only about the movement of water molecules, while diffusion can be the movement of any dissolved substances. Including gas or liquid.
If a transport requires atp, a type of energy, its active transport. Only active transport requires extra energy.
Another example of active transport includes the absorption of nutrients in small intestine.
Most articulating bones are covered with thin layers of articular cartilage.
Articulating bones are connected via synovial joints. This means that the articulating extremity of each bone will be contained in a synovial capsule. This capsule will contain a fluid necessary for healthy and mobile articulations, commonly referred to as synovial fluid.
The <u>opposing surfaces</u> of bones that are connected in this way contain a thin layer of articular cartilage. This cartilage, along with the presence of synovial fluid, allows bones to <u>move smoothly along one another and prevents harm to the actual bone tissue.</u>
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