why shouldnt you move the objective lense towards the stage when focusing

Answers

Answer 1
REMOVING THE SLIDE FROM UNDER HIGHER POWER OBJECTIVES MAY CAUSE THE SLIDE SURFACE TO HIT THE OBJECTIVE LENS SINCE THE LENS IN THESE OBJECTIVES WILL BE VERY CLOSE TO THE SLIDE. THIS COULD RESULT IN DAMAGE TO THE LENS. b. TO ACHIEVE THE HIGHEST POSSIBLE RESOLUTION WHEN VIEWING THROUGH THE HIGHEST POWER OBJECTIVES.

Related Questions

In a particular diploid organism, somatic cells have 24 chromosomes. How many pairs of homologous chromosomes would be present in the gametes of that organism

Answers

Answer:

12

Explanation:

It says 'pairs'.

Where does respiration take place?​

Answers

Answer: respiratory system

Explanation:

The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs and blood vessels. The muscles that power your lungs are also part of the respiratory system. These parts work together to move oxygen throughout the body and clean out waste gases like carbon dioxide

Respiration happens in the cells of plants, animals and humans, mainly inside mitochondria, which are located in a cell's cytoplasm. The energy released during respiration is used by plants to make amino acids, and by animals and humans to contract their muscles to let them move.

- BRAINLIEST answerer

which of the following cells contain a plasma membrane?

Answers

Explanation:

Like prokaryotes, eukaryotic cells have a plasma membrane (Figure 3.9) made up of a phospholipid bilayer with embedded proteins that separates the internal contents of the cell from its surrounding environment.

what is the process of producing energy in living organisms ​

Answers

Answer:

cellular respiration

Explanation:

Una parte de la radiación
infrarroja es absorbida
por los gases de efecto
invernadero. ¿En qué capa
de la atmósfera tiene lugar
este fenómeno?

Answers

La troposfera es la capa de la atmósfera donde una parte de la radiación infrarroja es absorbida por los gases de efecto invernadero.

En la capa de la troposfera, que es la capa más baja de la atmósfera, hay vapor de agua, dióxido de carbono, metano y algunos otros gases que son responsables de la absorción de la radiación infrarroja. Parte de la radiación infrarroja se escapa al espacio, pero una parte es detenida y absorbida por los gases de efecto invernadero presentes en la atmósfera.

Esta absorción de radiación infrarroja por los gases de efecto invernadero contribuye a un aumento de la temperatura de la superficie de la tierra y de la atmósfera. Entonces, podemos concluir que la troposfera es la capa de la atmósfera donde una parte de la radiación infrarroja es absorbida por los gases de efecto invernadero.

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A running back is running down the field and two people on the opposing team run towards him. One person is running east with a force of 250 N. The other person is running west with 250 N of force . They all collide at the same time. Show the forces affecting the running back.

Are the forces balanced or unbalanced?

Net force = ?

Answers

Given our understanding of the laws of physics, we can confirm that the Net force affecting the running back (ignoring gravity and its complementary force) is that of 500N and balanced.

In physics, we can say that the net forces being applied to an object are balanced when the forces are

Equal in sizeApplied in opposite directionsApplied at the same time.

The question states that the running back collides with two members of the opposing team at the same time. This, coupled with the fact that the opposing team members are described to arrive on exactly opposite sides, we can say that the forces being applied to the running back are indeed balanced.

Furthermore, since the forces are 250N in size each, we can confirm that the net force applied to the running back is 500N. To this, we would normally add the force of gravity, however, in order to do this, we would need the weight of the running back, that is, data that is not provided.

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A partial marine food web is shown.

image

Which of the following lists only organisms that are secondary consumers in this food web?

A.
euphausilds, sweeps, water fleas, sea urchins

B.
crabs, pilchards, blennies, snappers

C.
blennies, sweeps, tiger sharks, dolphins

D.
bull kelp, sweeps, water fleas, dinoflagellates

Answers

Crabs, pilchards, blennies and snappers are the examples of secondary consumers.

Crabs, pilchards, blennies and snappers are considered as secondary consumers because they feed on primary consumer which feed on producers such as plants and algae. Secondary consumer are those organisms which feed on herbivorous organisms or primary consumers.

They can feed on producers due to different digestive system so we can conclude that crabs, pilchards, blennies and snappers are the examples of secondary consumers.

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as a result of ach stimulation, calcium ions are released from the ______ of the sarcoplasmic reticulum.

Answers

Answer:

terminal cisternae

Explanation:

Which of the following is an advantage of sexual reproduction?
A. Produce identical copies of an organism.
B. Produce natural variation to adapt to environmental change.
C. Quickly populate a new habitat.
D. Reproduce very quickly.

Answers

Answer:

B

Explanation:

Produce natural variation to adapt to environmental change is an advantage of sexual reproduction. Correct Option is 2.

The advantage of sexual reproduction is that it produces genetic variation within a population. During sexual reproduction, offspring inherit a combination of genes from both parents, leading to unique genetic combinations. This genetic diversity results in natural variation among individuals within a population.

This variation is advantageous because it allows a population to better adapt to changing environmental conditions. In a changing environment, some individuals may possess traits that are better suited to the new conditions, making them more likely to survive and reproduce. Through natural selection, these advantageous traits can become more prevalent in the population over time, enhancing the population's overall ability to adapt and thrive.

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A teacher showed this animal to students on a field trip. Which tool will the students use to record the animal's behavior? A. Graduated cylinder B. Notebook C. Tape measure D. Hand lens​

Answers

Answer:

note book

Explanation:

nothing else would work

examine the importance of your role as part of the family and community​

Answers

Answer:

The important role of the family is communicating with each other, understanding,helping, and love my family

The important role of community help people how's need help, make my community clean and fresh

Hope it helps!

spermiogenesis begins with a ________ and ends with a ________.

Answers

Answer:

Answer:

germ cell and four gametes

Explanation:

Spermiogenesis begins with a  germ cell   and ends with    four gametes.

Describe a bacteria cell and what makes it different from eukaryotic cells?

Answers

Answer:

Bacteria is like eukaryotic cells they have cytoplasm, ribosomes, and a plasma membrane. Features that make a bacterial cell different from a eukaryotic cell the circular DNA of the nucleoid, the lack of membrane bound organelles, the cell wall of peptidoglycan, and flagella.

Explanation:

Which of the following is stored in bone?

Answers

Answer:

d. All of the above

Explanation: is correct

Answer:

its all of the above. ya ur correct

Explanation:

what factors determine if a species is fit to survive?

Answers

Answer: variation, reproduction, and heritability.

Explanation:  Genetic variation is an important force in evolution as it allows natural selection to increase or decrease frequency of alleles already in the population. Genetic variation is advantageous to a population because it enables some individuals to adapt to the environment while maintaining the survival of the population.  

All species must reproduce to survive. Organisms cannot live forever, so they must reproduce to allow their species to continue to live on. Reproduction is nature's way of allowing a species to survive.

Higher heritability means the trait evolves faster; fewer generations are required for the trait to increase to the same degree as a trait with lower heritability. For this reason, genetic correlation and heritability show how a trait might change from one generation to the next and into the future.

Which two structures engage to create a muscle contraction?.

Answers

Muscle contraction occurs when actin connects with myosin.

Muscle contraction occurs thanks to an action potential, which transmits a stimulus to the interior of the muscles.

For fiber tension to occur, the myosin head must bind with actin, slip, release, and then connect with another actin.

This electrical signal allows the actin and myosin proteins to move, thereby generating contraction of the muscles.

Therefore, we can conclude that myosin is a protein found in muscle fibers in order to bind to actin protein and cause muscle contraction.

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While you’re waiting for the lactase solution to cool, read the directions on the test strips. The test strips in the Edmentum lab kit will react to glucose within a few seconds. If you use different strips, the reaction time may vary. Now follow these steps to test the solutions. Record your data in the answer space.


Milk and water solution: Fill the first test tube one fourth full of milk. Fill the small graduated cylinder with water and gently add it to the milk in the test tube until the test tube is half full. Use the stirrer to thoroughly mix the solution. Then insert the test strip for 10 to 20 seconds. Look at the test strip, and record whether it changed color. Wash the stirrer.

Milk and lactase enzyme solution: Fill the second test tube one fourth with milk and one fourth with the lactase solution. Use the stirrer to thoroughly mix the solution. Insert the test strip for 10 to 20 seconds, and record whether it changed color. Wash the stirrer.

Milk an

Answers

Milk and lactase have glucose together because the enzyme lactase will break down the lactose molecule so the test strip can see the entire glucose molecule

The _______ horn is the region at the rear of the spinal cord that receives inputs from receptors in the skin.

Answers

Answer:

Dorsal

Explanation:

a patient visits her doctor and explains that since being hit on the cheek with a hockey puck she has been suffering from dry eyes and a dry mouth. it’s apparent to the doctor that, because both lacrimal secretion and salivary secretion are affected, there may be damage to the ____________ nerve.

Answers

Answer:

a patient visits her doctor and explains that since being hit on the cheek with a hockey puck she has been suffering from dry eyes and a dry mouth. it’s apparent to the doctor that, because both lacrimal secretion and salivary secretion are affected, there may be damage to the ____________ nerve.

Explanation:

facial

all the best

What organisms does lactic acid fermentation occur in.

Answers

Answer:

It occurs in Yogurt Bacteria

HELP NEEDED ASAP! 30 POINTS AND BRAINLYEST TO WHOEVER ANSWERS WITH THE BEST ANSWER! What are 3 examples of gene therapies that are used to treat diseases?

Answers

Answer:

Viruses used in gene therapy are retroviruses, adenoviruses, adeno-associated virus, herpes simplex, and vaccinia. Retroviruses are most commonly used because they can incorporate their genetic material into the host cell’s DNA, thus changing the genetic component of that cell.

Explanation:

Gene therapy is a medical field which focuses on the genetic modification of cells to produce a therapeutic effect or the treatment of disease by repairing or reconstructing defective genetic material. The first attempt at modifying human DNA was performed in 1980 by Martin Cline, but the first successful nuclear gene transfer in humans, approved by the National Institutes of Health, was performed in May 1989. The first therapeutic use of gene transfer as well as the first direct insertion of human DNA into the nuclear genome was performed by French Anderson in a trial starting in September 1990. It is thought to be able to cure many genetic disorders or treat them over time.

Gene augmentation therapy.

Gene inhibition therapy.

Killing of specific cells.

I think this is what you want but i'm only 14 and in 10th so sry if its not

a _________ is an example of an endotherm, and a ________ is an example of an ectotherm.

Answers

Answer: People, polar bears, penguins, and prairie dogs, like most other birds and mammals, are endotherms. Iguanas and rattlesnakes, like most other reptiles—along with most fishes, amphibians, and invertebrates—are ectotherms.

how much atp is gained at the end of cellular respiration

Answers

30 to 32 ATP hope this helped.
In a eukaryotic cell, the process of cellular respiration can metabolize one molecule of glucose into 30 to 32 ATP. The process of glycolysis only produces two ATP, while all the rest are produced during the electron transport chain.

What are organelles.

Answers

Organelles are specialized structures that perform various jobs inside cells.

Organelles are specialized structures that perform various jobs inside cells. The term literally means “little organs.” In the same way organs, such as the heart, liver, stomach, and kidneys, serve specific functions to keep an organism alive, organelles serve specific functions to keep a cell alive.

what is gene expression​

Answers

Answer:

Gene expression is the process the cell uses to produce the molecule it needs by reading the genetic code written in the DNA.

Explanation:

To do this, the cell interprets the genetic code, and for each group of three letters it adds one of the 20 different amino acids that are the basic units needed to build proteins.

Genes located near one another on the same chromosome are often inherited together. These are called ________.

Answers

Answer: Linked Genes

Explanation:

How long does the eclipse of an earth-like planet take?

Answers

The average number of years between eclipses turned out to the nearly 534 years.

HELP WILL GIVE BRAINLIEST
How does the temperature change as you move from the top to the bottom of
the thermosphere?
A. It stays the same.
B. It changes randomly.
C. It increases
D. It decreases

Answers

the answer is c that’s what I put


What are the two phenomenon that results in drastic weather change in the world?

Answers

Answers:

Hurricane or Tornado

Explanation:

Whenever a Hurricane or Tornado occurs it can cause drastic change in weather causing floods, wind, and damage to houses, buildings, and even people and animals.

What is the structure of the forebrain that connects the two hemispheres of cerebrum?

Answers

Answer:

c. Corpus callosum

Explanation: is correct

Answer:

corpus callosum

Explanation:

right on test

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