Which part of the compound microscope helps in gathering and focusing light rays on the specimen to be viewed

Answers

Answer 1
The condenser lens, is placed between the light source and the specimen and it gathers and focuses the light rays in the plane of the microscopic field to view the specimen.


Related Questions

what do the three major checkpoints for cell division have in common?

Answers

Answer:

There are three major checkpoints in the cell cycle: one near the end of G1, a second at the G2/M transition, and the third during metaphase. Positive regulator molecules allow the cell cycle to advance to the next stage. ... Each successive cell division will give rise to daughter cells with even more accumulated damage.

Explanation:

10. Explain how both a population of moose and wolves in the same area could each affect the
size and distribution of the plant population in a community:

Answers

Answer:

Since moose are herbivores, they could cause a plant population to decrease in size.

Since wolves are carnivores and hunt moose, there would be less moose feasting on plants, so the plant population would be allowed time to grow back larger.

Depending on how many wolves there are to moose, the plant population will tend to vary.

For example: If the moose population is greater than the wolf population, there will be a smaller population of plants. On the other hand, if the wolf population is greater than the moose population, there will be a greater population of plants.

Hope this makes sense :)

Which of the following is a river in Latin America?
a. the Amazon
b. the Mississippi
c. the Hudson
d. the Rockies

Answers

Answer:

my caca is green red and blue no cap

Cuál es la función de los ácidos nucleicos?

Answers

Answer:

¿Cuál es la función de los ácidos nucleicos?

Explanation:

Las funciones de los ácidos nucleicos tienen que ver con el almacenamiento y la expresión de información genética. El ácido desoxirribonucleico (ADN) codifica la información que la célula necesita para fabricar proteínas.

Answer: Los ácidos nucleicos son uno de los ácidos más importantes para todos los seres vivos, pues la función de los ácidos nucleicos, radica en el aporte de la información genética de los mismos. Sin duda alguna, el ADN y el ARN, los cuales son uno de los tipos de este ácido, son vitales para el organismo y la vida celular.

A plant cell is placed in a salt solution, and the following observation is recorded:

A normal plant cell is on the left. The plant cell wall is visible, and the internal structure fills the cell up to the cell wall. In the middle is an arrow pointing from left to right. On the right is a plant cell. This plant cell has a cell wall the same size as the first plant cell, but the internal structures are shrunken in comparison to the first cell.

Which answer choice describes the most likely concentration of the solution?

Hypertonic
Hypotonic
Isotonic
Osmotic

Answers

Answer:

Explanation:

a simple way to look it it is:

Hypertonic would be when the insides are shrunk (arrows point out)

Hypotonic when its full (Arrows point in)

Isotonic is at balance (arrows point out and in)

osmotic: the passage of a liquid through a membrane from a less concentrated solution to a more concentrated one (equal concentrations)

Although I'm not sure which image I'm supposed to be describing, but hope it helps you figure out the answer

Please answer this question this homework is for today

Answers

Answer:

?????????????

Explanation:

What element has the following electron distribution, 1s2 2s2 2p6 3s2 3p6?

will give brainliest

Answers

Answer:

The element is Argon

defense cells in blood are called white blood cells or:

Answers

white blood cells are also called leukocytes or leucocytes

SSomoene help plssssssssssss

Answers

Answer:

That they are the building blocks of an organism

Explanation:

It's like bricks, bricks make walls, walls make houses, houses make money, and comfort for people.

Brainiest please?

Put the breaker next to your hands

which of the folowing membrane-bound organees conatins sevreal oxidases that are invoved in the oxidation of fatty acids and amino acids during normaletablism and in detoxification of chemicals such as alcohol in the liver

Answers

Answer:

peroxisomes

Explanation:

Lipid metabolism and chemical detoxification are important functions of peroxisomes. Peroxisomes are responsible for oxidation reactions that break down fatty acids and amino acids.

what forms after the glycosidic linkage reaction between glucose and galactose is complete

Answers

What forms after the glycosidic linkage reaction between glucose and galactose is complete would be lactose.

Glucose and galactose are known as simple sugars or monosaccharides. Monosaccharides can combine together to form disaccharides or even polysaccharides.The combination of monosaccharides to form di or polysaccharides happens by a process known as condensation reaction.The condensation reaction results in the formation of glycosidic linkage or bond and elimination of water moleculesGlycosidic bond is a type of covalent bond th joins one sugar molecule to another sugar or non sugar molecule.

Thus, lactose is a dissacharide consisting of one glucose and one galactose unit which combine together by condensation and formation of glycosidic bond with elimination of water.

More on glycosidic linkage can be found here: https://brainly.com/question/6834008

Answer:

Water and lactose.

Explanation:

Glucose and galactose combine via glycoside linkage, forming lactose and water. Lactose is a sugar mostly found in milk.

Which of the following correctly describes the 3rd stage of the cardiac cycle?

Answers

Answer:

c. the ventricles are relaxed and fill with blood is correct

Explanation:

4 Student's were testing the physical properties of an unknown element.
They hit the element with a hammer and noticed that the element
shattered. They then used a flashlight and noticed the element reflected
little light. Based on these observations what could this element be? *
O Sodium
O Colbalt
Bismuth
O Phosphorus

Answers

Answer:

O Sodium

Explanation:

cytokinesis in plant cells involves the formation of

Answers

Answer:

Cytokinesis in plant cells involves the formation of the insertion of a new cell wall that separates daughter nuclei after mitosis

Cytokinesis involves the formation of the insertion of a new cell wall that separates daughter nuclei  and produce two new daughter cell.

What is cytokinesis ?

It is the final stage in the cell cycle, when a new daughter cells is formed from parent cell through the splitting of the cytoplasm and the separation of the two identical cells.

In Stage 1 cleavage furrow is seen where  the actin filaments will begin to tighten around the cells, spindle formation occur, t the chromosomes are divided evenly between the two nuclei.  The spindle possesses small structures called astral microtubules  guide the alignment of the actin filaments along the future cleavage furrow.

In Stage 2 the gathering of the actin filaments occur where some protein called  myosin facilitates the pulling of the actin filaments, and formation of contractile ring begins.

In Stage 3  the myosin a motor protein with the help of ATP, it is able to contract the contractile ring, deepening the cleavage furrow, causing the cell to narrow in the middle as two daughter cells form.

In Stage 4 the  actual breaking of the cell membrane and the membrane quickly refuses at the broken point and two independent and identical daughter cells are produced.

To learn more about cytokinesis , refer to the link:

https://brainly.com/question/1995803

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What do all living organisms have in common?A.They all reproduce asexually.B.They all perform photosynthesis.C.They all release oxygen into the Earth's atmosphere.D.They are all made of one or more cells.

Answers

Answer:

D

Explanation:

Only some organisms reproduce asexually, only plants perform photosynthesis, and most creatures consume oxygen and release carbon dioxide. D is the correct answer both by process of elimination and because the simplest life form is the single celled organism, which still has one cell. All complex life is made out of many many many cells.

how many valence electrons are in the atom pictured below?

Answers

Answer:

There are ten Valance electrons in the atom.

(Valence electrons are the little dots)

Explanation:

The picture below will help you as well.

Hope this helps :)

What we perceive about persons depends,in part, on their mannerisms and gestures.

True
Or
False

Answers

I pretty sure it’s true!

How do endodermal cells differ from other types of cells?​

Answers

Answer:

The endodermis is not highly differentiated in stems and usually contains secondary starch. In the roots, the radial and transverse walls of the endodermal cells have bandlike thickenings containing suberin and lignin.

Explanation: PLS MARK BRAINLIEST

ASAP HELP 100 POINTS Which describes nuclear fission?

starts when two atoms slam together, causing the larger atom to split into two smaller atoms

starts when a neutron slams into an atom, causing two atoms to form one, heavier atom

starts when two atoms slam together to form one, heavier atom


starts when a neutron slams into an atom, causing the larger atom to split into two smaller atoms

Answers

Answer:

to study the nature and size of the image formed by a convex lens using a candle and a screen activity file

The statement that describes nuclear fission is as follows:

Starts when a neutron slams into an atom, causing the larger atom to split into two smaller atoms.

Thus, the correct option for this question is D.

What is Nuclear fission?

Nuclear fission may be defined as a type of nuclear reaction during which the nucleus of an atom splits into two or more smaller nuclei due to the impact of another particle with the liberation of a very large amount of energy.

Nuclear fission is a process where a heavy nucleus is bombarded through neutrons and due to this, it becomes unstable. This causes it to decompose into two or more nuclei spontaneously with equivalent size and magnitude. It involves a tremendous detachment of energy as well as the emission of two or more neutrons.

Therefore, the statement "starts when neutron slams into an atom, causing the larger atom to split into two smaller atoms" describes the process of nuclear fission. Thus, the correct option for this question is D.

To learn more about Nuclear fission, refer to the link:

https://brainly.com/question/3992688

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La retina refracta la imagen y el cerebro la interpreta y la voltea?

Answers

Answer: a

Explanation: just did it on edg

Simple cuboidal epithelial tissue is often found lining ducts of glands
A. True
B. False

Answers

Answer:

true

Explanation:

Simple cuboidal epithelia are observed in the lining of the kidney tubules and in the ducts of glands. In simple columnar epithelium, the nucleus of the tall column-like cells tends to be elongated and located in the basal end of the cells.

the answer is true :)

the exchange of gases within the cells of the body is known as

Answers

Explanation:

The exchange of gases between the blood and tissue cells is internal respiration. Finally, the cells utilize the oxygen for their specific activities: this is called cellular metabolism, or cellular respiration. Together, these activities constitute respiration.

internal respiration.

Which statement best explains why carbon is present in so many kinds of molecules?

A. It can form four covalent bonds.


B. It is abundant on earth.


C. It has valence electrons.


D. It can become an ion.

Answers

Answer:

A is the ans

Explanation:

hope it helps :p

Answer:

A. It can form four covalent bonds.

Explanation:

what process involving cell division results in daughter cells that are not identical to the parent cell?

Answers

Answer:

meiosis

Explanation:

Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cell. In contrast, meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell.

un estudio sanguineo al que fue sometido carlos arrojo los siguientes resultados (mg/ml): glucosa 90, trigliceridos 120, hemoglobina,14 y acido urico 6.¿ cual de ellos corresponde a un lipido?

Answers

un estudio sanguineo al que fue sometido carlos arrojo los siguientes resultados (mg/ml): El que corresponde a lípidos son los triglicéridos.

Los resultados del estudio de sangre al que fue sometido Carlos son:

glucosa = 90 mg / ml triglicéridos = 120 mg / ml hemoglobina = 14 mg / ml ácido úrico = 6 mg / ml

A partir del resultado dado, la opción que corresponde a los lípidos son los triglicéridos.

                  Los triglicéridos son lípidos (grasas cerosas) que proporcionan energía al cuerpo. Los triglicéridos son producidos por nuestro cuerpo y se obtienen de las comidas que ingerimos. Un triglicérido es un tipo de lípido compuesto por glicerol y tres moléculas de ácidos grasos.

                  La glucosa tiene la fórmula molecular C6H12O6 y es un azúcar simple. La glucosa es el monosacárido más ubicuo que es un tipo de carbohidrato. La glucosa es producida principalmente por plantas y algas cuando realizan actividad fotosintética a partir del agua y el dióxido de carbono con la ayuda de la luz solar, donde se utiliza para crear celulosa en las paredes celulares.

                  La hemoglobina es una proteína que se encuentra en los glóbulos rojos (RBC) que transporta oxígeno a los órganos y tejidos y transporta el dióxido de carbono (CO2) de los órganos y tejidos de regreso a los pulmones.

                  El ácido úrico es un producto de desecho que puede detectarse en la sangre. Se forma cada vez que el cuerpo descompone las purinas. La mayor parte del ácido úrico se disuelve en la sangre, viaja a través de los riñones y se excreta en la orina.

Por tanto, de la explicación anterior, podemos concluir que el resultado que corresponde al lípido son los triglicéridos.

Obtenga más información sobre los lípidos aquí:

https://brainly.com/question/17365806?referrer=searchResults

help pls help pls pls

Answers

Answer:

Explanation:

hi how are you

1. Bacteria reproduce rapidly through binary fisson
2. A parent bacterial cell is able to survive in the presence of the antibiotic penicillin. Subsequent
generations from this parent will be _vulnerable to penicillin
3. Something that potatoes and bacteria have in common is that they both reproduce through
asexual reproduction
4. In asexual reproduction, DNA from the parent cell
before it produces daughter
cells.


Can someone help me with number 4

Answers

i think the answer is offspring

What REASONING connects the evidence to the claim

"while we sleep, our mind goes on an amazing journey"

Answers

where is the claim for the answer

Just need an answer
The right answer

Answers

Sorry me nobody else knew either lollll

Somebody help me please

Answers

Fine Adjustment Knob- used to focus on a specimen when on high power (letter A)

Ocular lens- lens magnifies 10x and is included when calculating total magnification (letter B)

Course adjustment knob- used to focus on a specimen when in low power (letter C)
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