Louis Pasteur’s experiments has taken a leap on cell biology. He was able to contribute to the concept of cell theory which suggests that cells came from pre-existing cells, cells are the fundamental unit of life and that all life have cells.
Highlighting on pre-existing cells, early before the experiments of Pasteur, there was the theory of spontaneous generation. This theory claims that organisms came from nonliving objects which is now, truly misleading and wrong.
Answer:
Hyperpolarization
Explanation:
When the membrane potential becomes more negative than the resting potential, the membrane is hyperpolarized. Hyperpolarization is inhibitory in nature and decreases the ability of the neuron to generate a neural impulse. During signal transmission at a chemical synapse, binding of neurotransmitters to the receptors stimulates the opening of ligand-gated ion channels. The flow of ions changes the voltage across the membrane and may cause depolarization or hyperpolarization. For instance, the opening of Cl– or K+ channels causes hyperpolarization.
La mayoría de los vertebrados y algunos invertebrados, como esta lombriz anélida, tienen un sistema circulatorio cerrado. (b) En los sistemas circulatorios abiertos, un líquido llamado hemolinfa se bombea a través de un vaso sanguíneo que desemboca en la cavidad corporal. La hemolinfa regresa al vaso sanguíneo a través de aberturas llamadas ostia.
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Hi,
Answer: False
<u>My work:</u> A theory is a scientific guess which is not proven.
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The coral provides the algae with a protected safe environment (a home) and compounds they need for photosynthesis. The algae in return, produce oxygen and help the coral to remove wastes. Most importantly, zooxanthellae supply the coral with glucose, glycerol, and amino acids, which are the products of photosynthesis.
