A species of frog slowly dies off because it cannot compete with the toads and lizards that share its ecosystem is an example of background extinction
Answer:
Newton´s third Law Ex: when you push against a wall its pushes back with the exact same force.
Newton´s second Law Ex: If you roll a big ball and a small ball, the small ball will have more accelration.
Newton´s First Law Ex: If a baseball is hit it wouldn´t stop unless another force stops it or obstruct it.
Explanation:
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White blood cells structure are quite varied, and different kinds have different functions. These are a few options:
1. The flexibility of the plasma membrane allows bacteriophage and increases mobility in pursuit of invaders.
2. Beta cells put out chemical antigens to eliminate invaders chemically.
3. Various white cells display proteins on their plasma surfaces to communicate the composition of the pathogen.
4. White cells (unlike red blood cells) have a nucleus, which allows the synthesis of new chemicals in response to various invaders.
5. White<span> blood cells tend to have a higher surface to volume ratio than other cells because the are more amorphous. That would lead to a relative increase in the plasma membrane, which contains receptors for identifying.antigens. T</span><span>he white blood cells may be more receptive to detection of antigens due to a higher surface-to-volume ration.</span>
The most efficient procedure that scientist can use to obtain more recombinant dna for a particular trait is : Clone the recombinant dna in a biological vector. This method will give more assurance that they will get the traits that they wanted form the subjects
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Agre
verified his hypothesis in anexperiment where he associated cells which includes
the protein with cells that did not have it. When the cells were placed
inside a water solution, those that had the protein inside their membranes
absorbed water by osmosis and increased up. Those that lacked the protein
were unaffected. He also conducted trials with artificial cells called
liposomes, which are a type of soap bubble surrounded by water on its extremities and also inside.
He figured out that the liposomes became permeable to water if the
protein was planted inside their membranes.