As you can see in the picture presented below, the three classes of water have distinctive traits.
Pure substances contain only one element, they are not mixtures of different things.
The homogeneous mixtures have multiple elements, but they are so well blended together that you can't easily observe or separate them.
In heterogeneous mixtures, we can easily differentiate between different elements of the mixture.
Effectors are muscles, organs, or other structures that receive signals from the brain or control center. When an effector receives a signal from the brain, it changes its function in order to correct the deviation.
Answer:
Plants don't have sensation of time, at least that we know till now. However plants have different stimuli against the different environmental change i.e lack of water causing yellow and fall of leaves. Such seasonal responses are reaction to environmental changes rather than timeline.
Answer:
a drug called an antibiotic
Explanation:
A drug called antibiotics is a treatment used for a bacterial infection such as strep throat.
Antibiotics are medicines that are used to treat a wide range of bacterial infections.
These drugs destroys bacteria by preventing them from replicating and reproducing their copies. This way the strain is unable to continue one of its essential life function.
These substances are active against bacteria and provides a toxic condition for them to replicate.
Answer:
The movement of Loess
Loess are deposits of fine particles of silt and clay formed by the wind. It is known to be a deposits form vertical cliffs which is often forms a thick, rich soil.
The movement of sand forms the Sand Dunes.
A sand dune is formed when an obstacle (rock) slows down the wind causing some sand accumulation by the wind. The dune increases in size, slowly occupying the land as more sand is deposited by saltation (deposit of more grains of sand along the gentle slope).