Pseudoscientific phenomena are "shy" or "fragile" in that they often disappear or weaken noticeably when subjected to well designed experiments, especially with nonbelievers. The ability to identify stimuli that are not visible is sometimes striking when two believers conduct a study; when independent scientists conduct the study, the effect is often attenuated or eliminated.
Answer:
Option (D).
Explanation:
Epigenetic changes may be defined as the changes that can alter the gene expression of an individual. The epigenetic changes occur naturally but may sometimes occur due to environmental factor as well. Mutations may be defined as the sudden heritable change in the DNA sequences. Mutations may be neutral, harmful or beneficial for the organisms.
Mutation always alters or changes the DNA sequence whereas the DNA sequences remain same in the epigenetic changes. The epigenetic changes can be inherited by the daughter cells as well.
Thus, the correct answer is option (D).
Answer:
Diffusion: the Simple and the Facilitated
Diffusion is the movement of particles down their gradient. A gradient is any imbalance in concentration, and moving down a gradient just means that the particle is trying to be evenly distributed everywhere, like dropping food coloring in water. This is what happened when we made our granola - a bunch of separate ingredients came together and spread out across the whole mixture. We call this evening-out moving “downhill”, and it doesn’t require energy. The molecule most likely to be involved in simple diffusion is water - it can easily pass through cell membranes. When water undergoes simple diffusion, it is known as osmosis.
Movement Across a Membrane and Energy
There are two major ways that molecules can be moved across a membrane, and the distinction has to do with whether or not cell energy is used. Passive mechanisms like diffusion use no energy, while active transport requires energy to get done.
Cartoon representing passive transport as rolling a boulder down a hill and active transport as rolling a boulder up a hill.
Explanation:
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Answer:
The human body uses three types of molecules to yield the necessary energy to drive ATP synthesis: fats, proteins, and carbohydrates
Answer:
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