BIOLOGY MIDDLE SCHOOL

An increase in biodiversity generally causes _______.a.
a decrease in ecosystem stability
b.
random fluctuations in ecosystem stability
c.
an increase in ecosystem stability
d.
no change to ecosystem stability

Answers

Answer 1
Answer:

Answer:

c.

an increase in ecosystem stability

Explanation:
Answer 2
Answer:

Final answer:

An increase in biodiversity generally causes c) an increase in ecosystem stability.

Explanation:

An increase in biodiversity generally causes c) a increase in ecosystem stability.

  • This is because a higher biodiversity means a greater variety of species, which can provide more stability to an ecosystem.
  • For example, if one species is negatively impacted by a disturbance, other species can compensate for the loss and maintain the overall stability of the ecosystem.

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The greatest difference in magnifying power is between _______. a. dissecting microscopes and compound light microscopes b. transmission electron microscopes and dissecting microscopes c. scanning electron microscopes and transmission electron microscopes d. compound light microscopes and scanning electron microscopes Please select the best answer from the choices provided

Answers

Correct Answer: A). Dissecting microscopes and compound light microscopes

After magnification the object appears larger in size that is measured by the magnifying power. It can be found out by dividing the focal length of the scanning object to the focal length of the eye piece. From the above given option the greatest difference that is found in the magnifying power is between the dissecting microscope and compound light microscope.

Hence, the correct answer would be option A.

Amongst the options provided, the biggest difference in magnification power is between transmission electron microscopes and dissecting microscopes. Dissecting microscopes provide lesser magnification but enable three-dimensional viewing, while electron microscopes offer superior magnification and detail, at the cost of the specimen's life.

Therefore, the correct answer is option b.

The greatest difference in magnifying power lies between b. transmission electron microscopes and dissecting microscopes.

Dissecting microscopes provide lower magnification, typically ranging between 20 to 80 times the object size, and are suitable for viewing larger objects such as tissues (Fig 3.2b). They also offer a three-dimensional view of the specimen.

On the other hand, transmission electron microscopes utilize a beam of electrons instead of light.

This mechanism facilitates much higher magnification and detail while providing superior resolving power. However, this method requires the destruction of the specimen and cannot be used for viewing living cells.

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Different forms of a given gene are known asalleles
chromosomes
recessives
dominants
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Answers

Answer: alleles

Explanation:

Alleles are different forms of a given gene. Alleles are mutated forms of a given gene which controls a particular trait. For instance, the gene that codes for hemoglobin is denoted with the letter A but the gene has another variant denoted by S. In abnormal hemoglobin S (sickle hemoglobin), glutamate is replaced by valine at position 6 in the amino acid sequence of the two beta chains of hemoglobin. This change in the amino acid sequence causes the red blood cells to have a sickle shape resulting in sickle cell disease. Therefore hemoglobin A and S are alleles of a given gene.

The size of a population increases if the number of individuals added to the population is equal to the number of individuals leaving the population.true or false?

Answers

False, the population would be the same then
False.

The same amount leaving is the amount coming

Why is vegatative reproduction becoming popular among farmers and gardeners

Answers

It is a cheaper way to get more out of a crop . If you have a very good crop you would want to maximize its ability so things like cloning , tissue culture would make more 'copies' of this superior plant .

TRUE OR FALSE

only moving things have energy

Answers

False is the answer for your question
False. They can have potential energy

All living things are either Eukarya, Bacteria, or Archaea. These three broadest categories in the classification of life are called _______.

Answers

All living things are either Eukarya, Bacteria or Archaea. These three broadest categories in the classification of life are called domains. Classifying organisms is nothing new for people as people have been concerned about classifying organisms for thousands of years. Aristotle the Greek philosopher was the first person to have classified organisms about 2000 years ago. Aristotle’s classification is still used today for classifying any new organisms that are discovered. Later on Carl Linnaeus worked on the already discovered model of Aristotle to create a different kind of classification system.


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