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

plz help me with why


An apple, potato, and onion all taste the same if you eat them with your nose plugged

Answers

Answer:

the flavor will neutralize

Explanation:

if you're plugging your nose, it blocks most of the taste out of a food item. so while biting into an onion while plugging your nose, it will neutralize the strong flavor and make it taste more like an apple or potato since they have very similar textures. hope this helps!

Name two types of cells

Answers

Answer:

Animal cells and plant cells  

helppppp answer the question at the bottom

Answers

Yes, you should expect differences because animals use their body temperature to keep them either cool or warm from the environments they live in. You wouldn't expect a big change from an insect like a bee because the environment Isn't that warm or cold.

Yes each one has different body temperatures and different climates they live in. A lizard is a reptile which means it is cold blooded. Since they are in different climates, of course their bodies would develop some kind of thing so they could adapt in that environment.

Why do you think that some people didn't initially believe that climate change was taking place?
What kinds of reasons might make people reject the idea

Answers

Answer:

becayse

Explanation:

yes becuase rhat grrrrr

which of these three human chromosomal abnormalities--down, patau, or edwards syndrome--has the longest average survival time? why is that the case?

Answers

Answer:Down syndrome, because trisomy 21 involves the smallest chromosome of the three.

Explanation:

can i have some help on this question as well? thank you so much

Answers

Answer:

A= amino acid

B= monosaccharide

C= steroid

D= fatty acid

E= phospholipid

Explanation:

hope that helps:)

the eukaryotic cell organelle that most resembles a bacterial cell is the

Answers

Answer:

mitochondria

Explanation:

Both bacteria and mitochondria have their own cell

Why is it important that the phospholipid has both hydrophilic and hydrophobic
regions?

Answers

Answer:

The formation of a micelle is a response to the amphipathic nature of fatty acids, meaning that they contain both hydrophilic and hydrophobic regions.

Explanation:

Biological membranes remain fluid because of the unsaturated hydrophobic tails, which prevent phospholipid molecules from packing together and forming a solid.

What is a snake that eats a mouse an example of?
predation
competition
mutualism
parasitism

Answers

Answer:

Predation

Explanation:

A snake that eats a mouse an example of predation.

A snake that eats a mouse is an example of predation. Predation is an ecological interaction where one organism (the predator) kills and eats another organism (the prey). Hence option A is correct.

What is predation?

Predation is an ecological interaction between two organisms in which one organism (the predator) hunts, kills, and eats another organism (the prey). It is a form of consumption where the predator obtains nutrients and energy from the prey, while the prey is typically harmed or killed in the process.

In this case, the snake is the predator and the mouse is the prey. Predation is a natural and common interaction in many ecosystems, and it can have significant effects on population dynamics and community structure.

It can help regulate prey populations, prevent overgrazing, and promote species diversity.

Predators have evolved various adaptations to catch and kill their prey, while prey has evolved various defenses to avoid being eaten, such as camouflage, warning coloration, and physical or behavioral defenses.

Hence option A Predation is correct.

To know more about Predation:

https://brainly.com/question/12410124

#SPJ5

which layer of the integument has a small population of immune cells?

Answers

Answer:

The stratum basale

Explanation:

The stratum basale contains basal keratinocytes, immune cells such as Langerhans cells and T cells, and melanocytes that provide the skin with pigmentation.Apr 12, 2019

Give an example of an ethical question related to people and their interactions with the environment.

Answers

Answer:

Global warming, global climate change, deforestation, pollution, resource degradation, the threat of extinction are few of the issues from which our planet is suffering. Environmental ethics are a key feature of environmental studies that establishes the relationship between humans and the earth.

There are many ethical decisions that human beings make with respect to the environment. For example: Should humans continue to clear cut forests for the sake of human consumption? Why should humans continue to propagate its species, and life itself? Should humans continue to make gasoline-powered vehicles?..................

Protein pumps are efficient because they
(Plz help)

Answers

In reference to the options listed in the image, we can say that protein pumps are efficient because they can move two types of molecules, which makes option B correct.

A protein pump is a kind of protein, often found in the cell membrane, that has the capability to pump specific substances in and out of the cell. Most of the processes that happen at the cellular level are naturally optimized for efficiency, even when the process consumes energy, as is the case with the protein pump.

The reason that the protein pump is considered efficient lies in how it uses the energy. Despite being an active process that consumes ATP to function, protein pumps are considered efficient because they can move two types of molecules at the same time, using the same molecule of ATP. This allows the cell to get more done for the same amount of energy.

To learn more visit:

https://brainly.com/question/2416383?referrer=searchResults

I AM GENEROUS PLZ HELP BRAINLIEST
What is the name of the process that is cell division for the cells involved in reproduction (sperm cells in male organisms and egg cells in female organisms)?

cytokinesis
replication
meiosis
mitosis

Answers

Answer:::::::::::: Meiosis………

Answer:

replication or mitosis

Which coast of North America would you expect you to have a cooler overall climate

Answers

Answer:

east coast

Explanation:

During the winter, land is much colder than the oceans. When the westerly winds blow over it, the air cools substantially. By the time it reaches the East Coast, the moist air is cold enough to convert into snow. Thus, the East Coast experiences extreme cold weather during the winter.

Answer:

East Coast

Explanation:

will mark brainlyist if right
What chemical change occurs to ATP when it reacts with water and releases energy?

a
The ATP molecule loses a phosphate, becoming ADP.
b
ATP binds to chlorophyll to allow plants to use the sun's energy.
c
The ATP molecule gains a phosphate, becoming ADP.
d
The ATP molecule becomes membrane bound as a sodium-potassium pump.

Answers

Answer:

the other person was right

Explanation:

a. the ATP molecule loses a phosphate become ADP

do plants and animals have eukaryotic or prokaryotic cells?

Answers

Answer:

eukaryotic

Explanation:

because they have nuclei

Answer:

They both have Eukaryotic cells

Explanation:

They both contain nuclei

what part of the brain is responsible for thirst and hunger

Answers

Hi there! The part of brain responsible for thirst, hunger, and sleep patterns is known as the hypothalamus.

Have a great day!

make a claim about how the metabolic rates of endotherms compare with those of ectotherms of similar mass. support ur claim with at least three pairs of data points from the graph

Answers

Endotherms have higher metabolic rates compared to ectotherms.

Endotherms include organisms that can regulate their own temperature. Some examples are:

RabbitsDogsKangaroosChimpanzees

On the other hand, ectotherms depend on sunlight or heated surfaces to regulate their temperature. Some examples are:

PythonsCodCrocodilesLizards

In general, endotherms have higher metabolic rates. Let's see some examples:

The Gila monster and the partridge both weigh about 800 grams but the partridge (endotherm) has a metabolic rate of 3 joules/s, while the Gile monster (ectotherm) has a metabolic rate of 0.2 joules/s.The python and the raven both weigh about 2000 grams, but the raven (endotherm) has a metabolic rate of 8 joules/s, while the python (ectotherm) has a metabolic rate of 0.2 joules/s.The rabbit and the sandbar shark both weigh about 6000 grams, but the rabbit (endotherm) has a metabolic rate of 8 joules/s, while the sandbar shark has a metabolic rate of 1.5 joulse/s.

Learn more about endotherms in: https://brainly.com/question/1092272

The body is protected against harmful flu
viruses by
(1) red blood cells and hormones
(2) white blood cells and antibodies
(3) white blood cells and enzymes
(4) red blood cells and antibodies

Answers

Answer:white blood cells and antibodies

Explanation:White blood cells include lymphocytes (such as B-cells, T-cells and natural killer cells), and many other types of immune cells.

Here is a picture of the Amazon rain forest. Which aspect of this rain forest is
a biologist likely to study?
A. The species of plants found in the rain forest
B. The source of the river running through the rain forest
C. The pH of the river running through the rain forest
D. The rocks found throughout the rain forest

Answers

Answer:

A. The species of plants found in the rain forest

Mark me as the brainlist

what human activities have thrown the carbon cycle off balance?

Answers

Answer:

burning fossil fuels

Explanation:

As people burns fossils fuel, the carbon cycle is obstructed and the atmospheric conditions tempered with

what part of the nucleotide forms the rungs of the ladder

Answers

The Nitrogen Bases forms the rungs ladder.

in terms of structure, how do channel proteins differ from carrier proteins?

Answers

Answer:

Moreover, carrier proteins can carry out both active and passive transportation of solutes, whereas channel proteins bring about passive transport only. Both carrier proteins and channels proteins also differ in their chemical composition - whilst the former are glycoproteins, the latter are lipoproteins.

Explanation:

hope this helped you if it did please mark brainiest

Carrier proteins can carry out both active and passive transportation of solutes, whereas channel proteins bring about passive transport only.

What are the functions of carrier proteins?

Carrier protein is a type of cell membrane protein involved in facilitated diffusion and active transport of substances out of or into the cell. Carrier proteins are responsible for the diffusion of sugars, amino acids, and nucleosides.

Moreover, carrier proteins bind specific solutes and transfer them across the lipid bilayer by undergoing conformational changes that expose the solute-binding site sequentially on one side of the membrane and then on the other.

Membrane carrier proteins are important transmembrane polypeptide molecules which facilitate the movement of charged and polar molecules and ions across the lipid bilayer structure of the cell membranes.

Learn more about carrier proteins:

https://brainly.com/question/14053367

#SPJ6

which stage of mitosis is characterized by the disintegration of mitotic spindles and the formation of two new nuclear membranes?

Answers

Answer:

telophase

Explanation:

the last stage of mitosis

HELP

What trees produce the most oxygan

Answers

Answer: It Banyan Tree

List and describe the cell phases that go through assuming they complete mitosis

Answers

Answer:

There are four stages of mitosis: prophase, metaphase, anaphase and telophase.1) Prophase: chromatin into chromosomes, the nuclear envelope break down, chromosomes attach to spindle fibres by their centromeres 2) Metaphase: chromosomes line up along the metaphase plate (centre of the cell) 3)

Explanation:

Summarize information about apoptosis

Answers

Answer:

Explanation:

One purpose of apoptosis is to eliminate cells that contain potentially dangerous mutations. If a cell's apoptosis function is not working properly, the cell can grow and divide uncontrollably and ultimately create a tumor

i decided to be a parasitologist because?​

Answers

Answer:

Parasitology is best suited to a person with inquisitive mind and interest in research. There are virtually unlimited research opportunities. The variety in basic and in applied research areas of parasitology exist in fields from the molecular level to the global level is unsurpassed in another field of biology.

Explanation:

im from philipinnes:)

what medications test positive for methamphetamemes?

Answers

Answer:

Ritalin (methylphenidate) and Adderall are used to treat ADHD, and are well known to cause a false positive for amphetamines and methamphetamines.

mammalian cells that are membrane-bound, circular, biconcave discs that have no nuclei at maturity are called __.

Answers

Blood cells

I came to that conclusion due to the biconcave disk and because they do not have nuclei. RBC lose their nucleus when they mature.

Blood cells are membrane-bound, circular, biconcave discs that have no nuclei at maturity.

What are blood cells?

Blood cells are round, disc shaped cells, that constitute the blood.

There are three types of blood cells:

White blood cells (monocytes, lymphocytes, neutrophils, eosinophils, basophils, and macrophages) Red blood cells (erythrocytes)Platelets.

The red blood cells help to carry oxygen to the body.

White blood cells help in immunity of the body.

The platelets involve in the process of hemostasis.

Thus, the correct option is blood cells.

Learn more about blood cell

https://brainly.com/question/903865

Other Questions
a) how many 15-year old students took part in the survey? Which island is more likely to have a habitat with low-lying food such as grass and moss? Solve the system of linear equations by elimination.2x+5y=163x5y=1Get (x,y) Write an example of a composition of rigidmotions for APQR. Calculate the number of total atoms in 195 grams of Ni(OH)2. Please help me with this!!! What did the Colville and Spokane tribes lose after the dam was built? Check all that apply.their homestheir graveyardstheir fishing sitestheir religious beliefstheir source of electricitytheir economic livelihoodedge 2021 What is a biodiversity hotspot (definition)? Explain HELP FAST PLSS I WILL GUVE BRAINLYEST Decide if the following French sentence is grammatically correct or incorrect.Je ne vois rien.O CorrectO Incorrect file:///C:/Users/USER/Downloads/Documento%20sin%20t%C3%ADtulo%20(5).pdf Find the value of the ratio.Can someone help please??? Simplify 5c(2/5d-4)-3(c+2)+d(c+5) What influences global and political relationships?How do social and environmental issues affect other countries? Suppose you and your friends form a band and you want to record a demo. Studio A rents for $125 plus $50 an hour and Studio B rents for $200 and $30 an hour. Let t = the number of hours and c = cost.Write an equation to represent the cost at each studio (2 points)Solve the system (2 points)Write the solution as a point (x, y) (2 points) P deceased by the total of q and r The role of the President has expanded over time, what is the name given to the group of the individuals that helps the president carry out their duties? Eight students are competing for a blue, red, and yellow ribbon for their agriculture project. How many different ways are there to present those ribbons if the order matters? 56 336 6,720 8,064 CAN SOMEONE HELP ASAP!! What do you think is going to happen in The Odyssey Part II?