BIOLOGY HIGH SCHOOL

Billy thinks evolution is slow and continuous. He believes in

Answers

Answer 1
Answer:

Answer:

Gradualism

Explanation:

gradualism. noun. The belief in or the policy of advancing toward a goal by gradual, often slow stages. Biology The view that evolution proceeds by imperceptibly small, cumulative steps over long periods of time rather than by abrupt, major changes.

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Determine the volume of the figure shown below and round the answer to include the correct number of significant figures

1. An advantage of light microscopes compared to electron microscopes is that light microscopes A)allow you to view living cells, while electron microscopes do not. B)allow you to view the surface of cells in greater detail than electron microscopes. C)have a higher magnification capability because they use natural light. D)have a greater resolution available because they use white light. 2. To study the details of protein molecules on the surface of a cell, a biologist would likely use a A) compound light microscope. B) dissecting microscope. C) scanning electron microscope. D) transmission electron microscope. 3. What would be the magnification of a specimen viewed with a compound light microscope that has an objective power of 40x and an ocular lens power of 10x? (2 points) 40x 50x 400x 500x

Answers

Answer:

1. The correct answer would be  A) allow you to view living cells, while electron microscopes do not.  

There are many advantages of light microscope over electron microscope such as:

  • It is easy to use as compared to the electron microscope.
  • It enables us to view both alive as well as dead specimen whereas electron microscope can be used to view dead specimen only.
  • Light microscopes are much cheaper and have much lower maintenance cost as compared to the electron microscope.

2. The correct answer would be C) scanning electron microscope

Scanning electron microscope or SEM is a type of electron microscope which is used to observe surface topography and composition of the specimen. It can achieve resolution of up to 1 nanometer.

3. The correct answer would be 400x

The total magnification of the microscope can be calculated by multiplying the powers of the objective lens and that of the eye lens.

Thus, the magnification of the specimen would be 40*10 = 400x.

1. The correct answer is A) allow you to view living cells, while electron microscopes do not. Light microscopes use visible light to illuminate specimens, which is less damaging to living cells compared to the electron beams used in electron microscopes.

The electron microscope

2. The correct answer is C) scanning electron microscope. Scanning electron microscopes (SEMs) are commonly used to study the details of protein molecules on the surface of cells. SEMs provide high-resolution images of the surface topography by scanning the specimen with a focused beam of electrons.

3. To calculate the total magnification of a compound light microscope, you multiply the magnification of the objective lens by the magnification of the ocular lens. In this case, the objective power is 40x, and the ocular lens power is 10x. Therefore, the magnification of the specimen viewed with this compound light microscope would be 40x * 10x = 400x. So, the correct answer is C) 400x.

Read more on electron microscope here brainly.com/question/2845212

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Which term describes the chromosomal abnormality of having extra chromosomes?

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Polyploidy is the term that describes the chromosomal abnormality of having extra chromosomes. 

Answer:

the correct answer would be polysomy

Explanation:

The main function of _____ tissue is communication between different parts of the body.connective
epithelial
nervous
muscular

Answers

Neevous tissue bevause the brain sends signals around the body

Answer:

nervous

Explanation:

The nervous tissue is one of the four basic tissues of the organism, it is formed by two types of cellular elements, it represents the fundamental component of the structures and organs that make up the nervous system. The main function of the nervous tissue is to capture internal and external stimuli and transform them into nerve impulses. All modifications of the external or internal environment and sensory stimuli such as temperature, pressure, light, sounds and taste, among others, are detected, examined and transmitted by nerve cells. On the other hand, the nervous tissue is in charge of coordinating the motor, glandular, and visceral functions of the individual.

What age do boys mature

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boys mature at age 12
In boys, puberty begins around 12 years as age, but may start as early as 9 years of age.

What is the five part definition for an object to be considered a mineral

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In order for an object to be considered a mineral

1. It must be inorganic.
2. Must have a crystalline structure.
3. Must be definite chemical composition.
4. Must be naturally created.
5. Must be solid.

A mineral is components in the earth that combine to form rocks. Minerals in nature they are inorganic occurring substances.

What is the name for the protective structure that forms around the embryo

Answers

Amniotic cavity is the term used for the sac which protectsan embryo from internal and external pressures. It contains the amniotic fluid whichserves as the cushion for guarding the developing embryo and the system towhich it is being fed on. It is a crucial part of pregnancy to be able to taketests in diagnosing the fetus for possible defects and abnormalities and one ofthe methods used is the amniocentesis wherein samples of the amniotic fluid aresampled.
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