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Vlada [557]
3 years ago
15

A is the basic unit of structure and function of living things

Biology
2 answers:
Sophie [7]3 years ago
7 0

Answer:

Cell

Explanation:

They are the 'building blocks' of life and make up organisms.

Rufina [12.5K]3 years ago
6 0
Cell is the answer, it is the building block of life that helps complete something
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Homeostasis will be MOST affected by the removal of the
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Homeostasis in what?In humans, <span>Homeostasis will be MOST affected by the removal of the Hyppocamus (which is the internal body thermostat)</span>
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Polydactyly is a dominant trait. what symbol on a pedigree chart would represent a male who has polydactyly
Sunny_sXe [5.5K]

The right answer is a colored square (or shaded).

Polydactyly is defined as the presence of one or more extra fingers in the hand or one or more toes in the foot.

It is a dominant trait, it means that the heterozygotes will express the trait.

In general, healthy men are represented by white squares, while sick men are represented by colored squares (most often in black).

8 0
3 years ago
1. What is the total magnification of an object if the ocular lens magnification is 20x and the objective lens magnification is
V125BC [204]

1. Answer: 900x

A typical microscope has two lens: ocular lens which located near the eye, and objective lens which located near the object. The image will undergo magnification of both lens. The total magnification of the object would be the product of both lens multiplication, not the sum. The multiplication will be: 20x * 45x= 900x

total mag= ocular * object

total mag= 20x * 45x

total mag= 900x


2.  Answer: 100x

The total magnification of the object would be the product of both lens multiplication. If the total magnification 1000x, that mean it was the product of ocular lens and objective lens. If ocular lens magnification is 10x, objective lens magnification would be:

total mag= ocular * object

1000x= 10x*object

object=1000x/ 10x=

object=100x

3. Answer: 0.2 mm

The area of the microscope that can be viewed by the eye should be the same. But since the magnification is different, the actual area that it represent will be different. Microscope with bigger magnification will have smaller diameter of the field of view(DFV).  Remember that micrometer(μm) is 1/1000 of millimeter(mm). The DFV would be:500 μm/ ( 1000x/400x)= 200μm= 0.2 mm


4. Answer: 750μm

This question is similar to number 3 question. Remember that 1 millimeter(mm) equal to 1000 micrometer(μm) .

The DFV of a 10x objective lens is 3 mm. Then the DFV of 40x lens would be:

DFV2= DFV1/ (mag1/mag2)

DFV2= 3mm/ ( 40x/10x)= 0.75 mm= 750μm

5. Answer: 125μm x 37.5μm

The lens DFV of microscope from question 4 is 750μm, so the width and length of the area would be 750μm.

If 6 organisms could fit across the DFV if they were laid end-to-end, the length would be: 750μm/ 6 organism= 125μm

If 20 organism could fit is stacked side by-side, then the width would be: 750μm/ 20 organism= 37.5μm

6. Answer: 6mm

This question is similar to number 3 and number 4 question. Remember that 1 millimeter(mm) equal to 1000 micrometer(μm).

The DFV of a 100x objective lens is 1.5 mm. Then the DFV of 25x lens would be:

DFV2= DFV1/ (mag1/mag2)

DFV2= 1.5mm/ (100x/25x)= 6 mm


7.Using the 100x objective lens from question 6, you estimate 12 organisms could fit across the DFV if they were laid end-to-end and 30 could fit is stacked side-by-side. What is the length and width of this organism (in microns)?  

Answer: 0.5mm x 0.2mm or 500μm x 200μm

The lens DFV of microscope from question 6 is 6 mm, so the width and length of the area would be 6 mm.

If 12 organisms could fit across the DFV if they were laid end-to-end, the length would be: 6mm/ 12 organism=0.5mm

If 30 organism could fit is stacked side by-side, then the width would be: 6mm/ 30 organism= 0.2mm

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3 years ago
Definition of Uniformitarianism
Shkiper50 [21]

Answer:

the theory that changes in the earth's crust during geological history have resulted from the action of continuous and uniform processes.

Explanation:

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In glycolysis, as in all the stages of cellular respiration, the transfer of electrons from electron donors to electron acceptor
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1. Oxidized
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4. Pyruvate
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6. NADH

An acronym for understanding gain and loss of electrons is OIL RIG (Oxidation is Loss of electrons, Reduction is Gain of electrons).
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3 years ago
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