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4 years ago

What did Ernest Rutherford expect to happen when he aimed a beam of particles at a thin gold foil

Biology

2 answers:

Goryan [66]4 years ago

5 0

Answer:

The answer is The particles would be deflected slightly after passing through the foil.

Explanation:

Evgesh-ka [11]4 years ago

3 0

He concluded that a tiny, dense nucleus would cause deflections.

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Which of the following statements about the equilibrium theory of island biogeography is FALSE?

Ksivusya [100]

Answer:

b) At equilibrium, the species composition of an island will not change.

Explanation:

The Theory of Island Biogeography written by Robert H. MacArthur and Edward O. Wilson (1967) is an essential book for any professional working in biogeography, biodiversity, ecology, conservation and related fields. The theory of island biogeography states that species diversity on islands tends to approach a dynamic equilibrium due to the balance between colonization (inmigration), speciation and extinction. At equilibrium, the species composition of an island will change, precisely at the time that immigration and extinction processes maintain the number of species in a dynamic equilibrium, thereby maintaining species diversity. In this case, the colonization rate represents a function of distance to the continent (or other islands), the extinction rate is a function of the size of the island and habitat heterogeneity, and speciation is a function of time. This book also contains a series of useful considerations: 1-the number of species in an area is directly associated with the size of the area; 2-large islands support more diverse communities than small islands; 3-the viability of populations on island systems can be considered as a function of the island size and its proximity to the mainland (or other islands); and 4- when a habitat is lost the remaining fragmented area may lose some of its important species.

4 0

3 years ago

Read 2 more answers

What are 5 examples of coevolution from the movie Evolutionary Arms Race?

Step2247 [10]

Answer:

1. The adaptation of the garter snake to the increasing toxicity of the rough-skin newt

2. The development of antibiotic-resistance by the tuberculosis bacteria in prisoners in Russian prisons

3. The development of FIV-resistance in wildcats

4. The immunity to HIV in about 10% of caucasians due to mutations in their cells that occured among those who survived the Black Death.

5. The development of immunity to asthma in children exposed to livestock at an early age in Bavaria

Explanation:

Coevolution refers to the the evolution that occurs in two species of organisms due to the mutual interaction or interdependence of the two species. Due to this interaction among species, a change in one organism results in adaptive changes in the other organism as well.

Coevolution can occur is any of these relationships between organisms: predator-prey, mutualism, or commensalism.

In the movie, Evolutionary arms race, the following examples of coevolution were highlighted:

1. The adaptation of the garter snake to the increasing toxicity of the rough-skin newt.

2. The development of antibiotic-resistance by the tuberculosis bacteria in prisoners in Russian prisons.

3. The development of FIV-resistance in wildcats.

4. The immunity to HIV in about 10% of caucasians due to mutations in their cells that occured among those who survived the Black Death.

5. The development of immunity to asthma in children exposed to livestock at an early age in Bavaria.

7 0

4 years ago

A nurse uses maslow’s hierarchy of needs to plan care for a patient with mental illness. which problem will receive priority?

Bad White [126]

The problems that will receive priority are the physiological needs such as air, food and water.
Maslow's hierarchy of needs is a theory in psychology which organizes people's needs according to their priorities. It is represented as a pyramid with five steps which include: physiological(at the base), safety, belongingness, esteem and self actualization.
The physiological needs at the base of the pyramid are the first priorities.

8 0

3 years ago

How do the 20 different amino acids end up in our bodies?

Stels [109]

Answer:...................................................

Explanation:.......................

4 0

3 years ago

_____, such as valium, are depressant drugs that reduce anxiety and induce relaxation. opiates tranquilizers hallucinogens stimu

zzz [600]

The answer in the given choices above is tranquilizers, it is because valium is a tranquilizer in which another example of this is also xanax. Tranquilizers have the ability of inducing relaxation and to reduce anxiety when injected to the person.

7 0

4 years ago