The total magnification of a specimen viewed under a compound light microscope is determined by the power of the objective lens added to the power of the ocular lens the magnification power of the ocular lenses used the power of the objective lens multiplied by the power of the ocular lens the magnification power of the objective lenses used

Answers

Answer 1

Answer:

The power of the objective lens multiplied by the power of the ocular lens

Explanation:

Answer 2

Answer:

c. The power of the objective lens multiplied by the power of the ocular lens

Explanation:


Related Questions

Which statement best compares and contrasts lipids and carbohydrates?

HURRY PLEASEE I HAVE TWO MINUTES JUST THE LETTER AWNSER

Answers

The correct answer is B. Both are used for energy storage, but only carbohydrates are used for short-term energy.

Explanation:

Carbohydrates and lipids are both biological macromolecules, which means they are essential for living organisms. Additionally, these are similar because they store energy. However, the type of energy they store is different.

Indeed, carbohydrates store short-term energy, which means carbohydrates are broken down a short time after ingested, and the energy in them is used. On the other hand, in lipids, the energy store is long-term energy, which means it is not consumed as fast as in carbohydrates. This occurs because lipids contain more energy. According to this, the correct statement is "Both are used for energy storage, but only carbohydrates are used for short-term energy".  

Answer:

B

Explanation:

Both are used for energy storage, but only carbohydrates are used for short-term energy storage.

What structure encloses the pituitary gland?

Answers

Answer: Im pretty sure that it is the sella turcica

Explanation:

There are 12 apples 14 oranges and 16 bananas in a fruit basket.what is the ratio apples to bananas the answer choices are A 1:12 B 1:16 C 6:7 D 3:4 E 2:7

Answers

Answer:

The answer is A

Answer:

mannn this aint ittt

Explanation:

dawggg

What advantages do diatoms obtain from sexual reproduction?a. increased genetic variability.b. increased ability of populations to respond to environmental change.c. evolutionary potential.d. regeneration of maximal cell size for the species.d. all of the above.

Answers

Answer:

The correct answer is: option D. all of the above.

Explanation:

In sexual reproduction, two opposite gender gametes are fused together to form a zygote by the process called fertilization which forms the new organism that is genetically unique.

In diatoms, sexual reproduction caused various types of advantages such as higher or enhanced genetic variability as recombination occurs. It also helps the ability to responding to environmental change Increasing the population or species size and other.

Thus, the correct answer is: option D. all of the above.

what do you think the difference between simple and complex carbohydrates is?

Answers

Answer:

Complex carbohydrates are present in foods such as bread and pasta. Simple carbohydrates are in foods such as table sugar and syrups. Complex carbohydrates contain longer chains of sugar molecules than simple carbohydrates. The body converts these sugar molecules into glucose, which it uses for energy.

Explanation:

Hope that helps!

Which of the following is an organic molecule?
a. carbon dioxide (CO2)
b. water (H2O)
c. methane (CH4)
d. hydrochloric acid (HCl)
e. more than one of these is an organic molecule

Answers

e. More than one of these is an organic molecule

. Name the cells that are produced by the testes and ovaries.

Answers

Answer and explanation:

In the female of the species the reproductive cells are the egg cells, and in the male the reproductive cells are the sperm. The male gonad, the testicle, produces sperm in the form of spermatozoa. The female gonad, the ovary, produces egg cells. Both of these gametes are haploid cells. The testes contain germ cells that differentiate into mature spermatozoa, supporting cells called Sertoli cells, and testosterone-producing cells called Leydig (interstitial) cells.

to be possible answer to a scientific question a hypothesis must be a.testable b. unique c. written d. controlled​

Answers

A. your hypothesis needs to be testable

Chose the answer the why the location of chlorophyll plays an important role in the process of

Answers

Photosynthesis. Photosynthesis occurs in the chloroplast, which contains the light absorbing pigment chlorophyll that is responsible for making plants green in colour.

Answer:

Chloroplast

Explanation:

Chlorophyll in the chloroplast is the natural pigment that give plants its green color. It is useful to plants in the process of photosynthesis, where it uses sunlight to nurture the plant and provide itself with necessary nutrients for fruition.

PLEASE HELP AGAIN

What type of light wave interaction is taking place in the image below?

A. Reflection
B.Refraction
C.Diffraction
D.Transparency

Answers

The answer is C. Diffraction

The sequence of amino acids in a protein can be though of as its _______ structure.

Answers

Answer:

molecular

Explanation:

What are the different sizes of carbohydrates

Answers

cellulose, starch, glycogen, and most sugars.

Cellulose, starch, glycogen, and most sugars

what does an antibiotic treat?​

Answers

Answer:

Explanation:

Antibiotics are strong medicines that treat bacterial infections. Antibiotics won't treat viral infections because they can't kill viruses. You'll get better when the viral infection has run its course. Common illnesses caused by bacteria are urinary tract infections, strep throat, and some pneumonia.

Answer:

Antibiotics are strong medicines that treat bacterial infections.

Explanation:

Ruthie has a pet goldfish. After several months the goldfish quits growing. Ruthie's Mom told her the goldfish might have stopped growing because the tank is too small. Ruthie measures the size of her goldfish in its current tank and then puts the goldfish in a larger tank. After 2 months the goldfish is now 1 cm longer.
A. Independent Variable=
B. Dependent Variable=
C. Control=

Answers

Answer:

independent: fish tanks

dependent: goldfish

control can he anything unchanged: the water, fish food, temperature...

The variables in the study are the independent variable is fish tank, dependent variable is goldfish, and control is the water, fish food, and temperature.

What are experimental variables and control?

The experimental variables can usually one or several of the sample attribute categories which are used in study. It describes all the factors that differ between the test and the control samples in the study, which we are investigating. Example of experimental variable is disease.

The independent variable in an experimental study is what the scientists can change in the experiment. The dependent variable is what the scientist measures in the experiment, or the outcome of the study. The controlled variables are all the features which are kept the same throughout the experimental study.

The independent variable in the experimental study is the fish tanks, the dependent variable is the goldfish, and the control can be anything which remains same throughout the experiment is the water, fish food, temperature.

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Which of these changes to the cell would cause the greatest reduction in the activity of the catalase?

CHOICES:
#1 a return of pH to the normal range

#2 A decrease in the concentration of hydrogen and oxygen

#3 an increase in the concentration of hydrogen peroxide

#4 an increase or decrease in PH beyond normal range​

Answers

Answer:

#3 an increase in the concentration of hydrogen peroxide.

Explanation:

The changes to the cell that causes the greatest reduction in the activity of the catalase would be - #3 an increase in the concentration of hydrogen peroxide.

Catalase enzyme is present in both plant and animal cells. The catalase is mainly found in aerobic organisms. The substrate for the enzyme is hydrogen peroxide which is broken down into oxygen and water.

The hydrogen peroxide is harmful to the cell and very reactive. Its buildup can kill the cellto breakdown the hydrogen peroxide, the catalase enzyme catalyzes it and convert it into water and oxygenincrease of the hydrogen peroxide leads to a reduction in the activity of the catalase.A single molecule of the catalase can break down 40 million molecules of hydrogen peroxide per minute.

Thus, the correct answer is - #3 an increase in the concentration of hydrogen peroxide.

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Community definition

Answers

Answer: Multiple populations in a given area

1 point
We all started as a single cell (zygote). This cell undergoes cell division
(mitosis) and over time becomes a fetus. This is an example of this
characteristic of life... *
We have evolved over time
We have grown and developed
We have DNA
We respond to our environment

Answers

Answer:

We have grown and developed

Explanation:

Which statement about ecological organization is correct?
O An organism is part of a community.
O A community is part of a population.
O An ecosystem is made up of organisms only
O Biosphere is a part of the ecosystem
Submit
Request Answer

Answers

Answer:

Biosphere is a part of the ecosystem

The correct statement about ecological organization is:

An organism is part of a community.

The levels of ecological organization are a hierarchy of categories that go from the micro to the macro (and vice versa), showing us different dimensions of analysis of living beings.

These levels are: organism, population, community, ecosystem, biosphere and biome.

The community is the level made up of a set of organisms of different species, which interact with each other in a specific area.

This includes life forms of all phyla: animals, plants, fungi, bacteria, etc. .

But in turn organisms interact, and these interactions can prevent some very similar species from coexisting (competitive exclusion principle), or the presence of a predator can cause two competitors to remain in low density and therefore there are no exclusion.

Therefore, we can conclude that the organisms of any species (plant or animal) are part of a community and that they coexist in a defined space (the biotope) that offers the external conditions necessary for their survival.

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How are producers, consumers, and decomposers categorized?

Answers

Answer:

Producers, consumers, and decomposers are organisms within ecosystems that are classified based on how they gain their nutrition

Explanation:

Producers such as plants make their own food, consumers such as animals eat plants and animals, and decomposers such as bacteria and fungi break down dead organic matter.

Answer:

Producers, consumers, and decomposers are organisms within ecosystems that are classified based on how they gain their nutrition. Producers such as plants make their own food, consumers such as animals eat plants and animals, and decomposers such as bacteria and fungi break down dead organic matter.

Explanation:

The molecule pictured below produced a blue color when tested with Benedict’s reagent, a yellow color when tested with IKI, and a violet color when tested with Biuret reagent. Based on the structure shown below and these chemical results, what kind of biomolecule is this? the molecule a blue color with benedicts reagent.no color change that given molecule is not a simple carbohydrate

Answers

Answer:

The molecule is a protein

Explanation:

When the molecule was tested with benedict's solution and a blue color was formed, that actually meant there was no colour change because the colour of benedict's solution is blue. Benedict's solution is used to test for the presence of reducing sugar, which changes it's colour to green, orange, yellow or even red; the fact that there was no colour change shows the molecule is not a reducing sugar.

Yellow colour when tested with IKI (Iodine-potassium iodide) also shows no colour change. IKI reagent is used to determine the presence of starch, which gives off a dark-blue colour if starch is present. Hence, absence of this dark-blue colour or observation of a yellow/orange colour shows the molecules is not starch.

Biuret reagent is used to test for peptide bonds in a molecule. In the presence of a peptide bond, the biuret reagent changes colour from blue to violet. The amino acids in proteins are held together by peptide bond, hence the biuret colour change shows that the biomolecule is a protein.

A farmer in Minnesota plants some tomato seeds in early spring. She plants them outdoors in soil and adds water every day. A few weeks later, nothing has happened. What is the most likely reason the seeds have not germinated?

Answers

Answer:

Other factors could affect the reason the seed didn't germinate because under suitable conditions depending on the variety it should germinate within 5 to 10 days from planting. However, the most likely reason it didn't germinate must be the Temperature.

Explanation:

From the question above, the farmer lives in Minnesota and she planted between March and May, meaning the temperature was way cold which is not suitable for tomato. One other valuable point was she planting outdoor which could also affect the performance of the tomato seedlings. Planting in early spring doesn't necessarily mean bad as some seeds might thrive under conditions explained above. For tomato, depending on temperature because too high temperatures could also affect the viability of the seeds. In Minnesota in early spring, it would have been better if she planted indoors to raise the temperature before transplanting as a balanced night temperature is also important for the seed viability.

Some other factors to be considered for seeds to germinate:

1. Water

2. Type of the soil

3. Seed depth in the soil

4. Nature of seed coat

5. Oxygen

6. Light

HELP PLEAASSSEEE :,,,,)

Answers

Answer:my guess is C or D

sorry if im wrong on both of them

Answer:

c

Explanation:

I got it right

hope it helps (:

I hate biology and the teacher can you help me with this question

Answers

Answer:

B

Explanation:

2. How is the pubic symphysis different in males and females?

Answers

Ummmm... from my book females have wider area 90 degrees or something like that, while males have slimmer area like 60 degrees or something. Obviously not everyone has that type of area surface but I think ?typically? They are around those degrees.

Well, hope this helps you even though it is all weird and stuff

A block of wood with a density of 10g/cm^3 is cut in half. What would the
expected density of the two halves be? *
A The density would double.

B The density would halved.

C The density would remain the same.

D The density would increase by a quarter.

Answers

the answer to ur problem above is (b)

3. Label the three planes in the following image next to the three corresponding letters below the image.
CI
a)
hlwhos on this Imao ??

Answers

Answer:

The correct labels of the three planes are -

a. axial or transverse plane.

b. sagittal plane

c.. coronal plane

Explanation:

The human body can be divided into three planes on the basis of anatomy - the sagittal plane, the coronal plane, and the transverse plane

A sagittal plane is a longitudinal plane that divides the human body in the left and right parts.

A coronal plane is an anatomical plane that divides the body vertically into the back and front, ventral or dorsal (to be more specific).

An Axial or transverse plane, it is the plane that divides in the upper part of the body and lower part of the body.

Thus, the correct answer is -

a. axial or transverse plane.

b. sagittal plane

c. coronal plane

What is the internal and external adaptation in a leaf for photosynthesis? Please give a clear short answer (prefer in bullet points). I will give brainliest to fastest answer

Answers

Answer:

They are adapted for photosynthesis by having a large surface area, and contain openings, called stomata to allow carbon dioxide into the leaf and oxygen out. ... The cells inside the leaf have water on their surface. Some of this water evaporates, and the water vapour can then escape from inside the leaf.

Answer:

▪︎leaf with large surface area

▪︎dark coloured leaf for maximum sunlight absorbtion

▪︎has stomata openings to allow carbon dioxide diffuse in the leaf

▪︎It has the green pigment :chloroplast inside to absorb sunlight

identify and label each part of the eukaryotic cell

Answers

heres your diagram with labeling

Eukaryotic cells are enclosed in the membrane, and the nucleus is bound by a nuclear membrane. Major parts of the eukaryotic animal cell are the nucleus, cytoplasm, mitochondria, Golgi, ER, etc.

What are animal cells?

Animal cells are eukaryotes that lack cell walls but have almost the same components as plant cells. The cytoplasm is the component of the cell where all the organelle lies.

The nucleus is the central organ that is involved in genetic replication and transcription and translation. Mitochondria are involved in the metabolic process and release of energy.

Golgi are involved in the packaging and transport of the proteins and ER produces proteins that are transported to the Golgi. Vacuoles though are present in small quantities they aid in the accumulation and elimination of the waste product.

Refer to the image attached below of the animal eukaryotic cell.

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________ is not required for anaerobic respiration.

Answers

Oxygen is the correct answer !

DNA differs from RNA because DNA
contains the sugar ribose rather than the sugar deoxyribose.
consists of a single rather than a double polynucleotide strand.
contains phosphate groups not found in RNA.
contains thymine in place of uracil.

Answers

Answer:

Yes all above difference is correct

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