why does a microscope stage have a small hole in it?

Answers

Answer 1

You can look through the hole fro a closer look


Related Questions

Fill in the Blank: Write the word that best completes each sentence..
17. Unlike animal cells, plant cells have
vacuoles, and a
wall.
cells have membrane-
18. Prokaryotic and Eukaryotic cells differ in that
bound organelles, and
cells do not have a nucleus.
19. Cell membranes are made up of a phospholipid bilayer. Which part of the phospholipid
bilayer interacts with water? Which part does not interact with water?
20. Name the three main parts of the modern cell theory.
1-
2-
3-

Answers

Answer:

Explanation:

1. Unlike animal cells, plant cells have vacuoles, and a cell wall

2. Cell membranes are made up of a phospholipid bilayer. Which part of the phospholipid bilayer interacts with water? Which part does not interact with water?    nonpolar fatty acid tails.                                                                                

3. first, that DNA is passed between some cells during cell division; second, that the cells of all organisms within a similar species are mostly the same, both structurally and chemically; and finally, that energy flow occurs within

To keep studying and be successful.

Answers

Answer:

You need to study because...

Explanation:

If you don't study you will fail, and if you fail you will not get a job, and if you don't get a job you will not make money, and if you don't make money you can't buy food and water, and if you can buy food and water you will startve, and if you starve you will d ie. Therefore, Study in school.

What Is the biggest songbird in the world?

Answers

Hi there! I like songbirds, just as you might.

If I remember properly, the biggest songbird is the common raven! It's size can range from 22 to 27 inches long, while the tiniest is a hummingbird, ranging from 3.1 to 3.5 inches long.

Have a nice day!

The largest song bird is (Corvus Corax) also known as a Common Raven
Facts: Their lifespan is 10-15 years and can weigh up to 4.4lbs
They are around 22-27 inches long

chúng ta cần làm gì để bảo vệ môi trường sống không còn tác nhân đột biến?

Answers

Fjdyc jesjnehfiejshwjqbdh jevdjedn

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

What are the two ways to get air to rise?

Answers

Answer:

01. Heat it

02. Increase the density of the surrounding material

Explanation:

Have a great day, and spread some positivity!

Describe the relationship between DNA,
chromosomes, and genes.
RETRY

Answers

Answer:

In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.

Explanation:

so the relationship between.

Answer:   Chromosomes > DNA > Genes

Chromosomes are thread-like structures of DNA coiled around proteins. Genes are specific portions of DNA that code for the production of proteins that are used and/or expressed by a body.

Somebody help me please

Answers

Answer:unsaturated

Explanation: srry if I'm wrong

Many biomolecules are also polymers. Poly - many. Mer - parts. A polymer is a molecule made up of many parts. The image above is a monomer or part of a single part of a common polymer. What is the monomer and polymer?

monosaccharide; polysaccharide
nucleotide; nucleic acid
fatty acid; lipid
amino acid; protein

Answers

Answer:

nucleotide; nucleic acid

Explanation:

nucleic acid is the polymer, and nucleotide is the monomer as its the buliding block of nucleic acid.

HELP!!!
how does earths axis affect our seasons

Answers

When the axis is towards the sun it is summer for that hemisphere and when it pointed away it is winter. The axis tilts affect our seasons due to it either being point towards, away from it or in the middle.
Throughout the year, different parts of earth receive the suns most direct rays. The earths tilting is what gives us 4 seasons by how tilted we are to the sun.

Read the passage from “The Caged Bird.”

A free bird leaps
on the back of the wind
and floats downstream
till the current ends
and dips his wing
in the orange sun rays
and dares to claim the sky.

How does the figurative language in this stanza work as part of the extended metaphor?

It creates images of freedom.
It creates images of oppression.
It emphasizes a sense of fantasy.
It emphasizes a sense of arrogance.

Answers

Answer:

It is most likely A

Explanation:

This part of the amazing poem, "The Caged Bird" shows the freedom the bird could have, but doesn't.

Answer:

It creates an image of freedom.

Explanation:

which step of cellular respiration produces the most atp

Answers

The Krebs cycle
The Krebs cycle takes place inside the mitochondria. The Krebs cycle produces the CO2 that you breath out. This stage produces most of the energy ( 34 ATP molecules, compared to only 2 ATP for glycolysis and 2 ATP for Krebs cycle).

Answer: electron transport chain

A team of engineers is asked to evaluate several different design solutions. Which action is most likely to help them with their evaluations? A. Asking detailed questions about the criteria and constraints B. Deciding which design solution is least costly without considering the criteria C. Changing the constraints to match the design solution they like the most D. Asking who developed the project's criteria and constraints​

Answers

Answer:D

Explanation:Asking who developed the project's criteria and constraints​

Answer: asking detailed questions

Explanation:

Which scientist was a Navy Officer in World War 2 and used sonar on his battleship to map the ocean floor?
Harry Hess
Abraham Ortelius
Arthur Holmes
Alfred Wegener

Answers

I think its harry hess

Which of the following is not true about the evolution of biomes?
a. Both natural and artificial changes can cause the evolution of biomes,
b. Volcanic activity can result in the evolution of biomes,
c. Biome evolution is influenced by tectonic shifts that change the shape of continents,
d. Human activities cannot impact in the evolution of biomes.

Answers

The answer should be B

Answer:

b

Explanation:

Most opportunist species ____.


are non-native

tend to mature slowly after birth

go through irregular and unstable boom-and-bust cycles in their population sizes

are especially vulnerable to extinction

tend to compete well when their population size is near the carrying capacity of their environment

Answers

Most opportunist species go through irregular and unstable boom-and-bust cycles in their population sizes. Please mark BRAINLIEST.

The skeletal system is NOT responsible for which of the following?

1. Protecting the vital organs.
2. Being a storehouse for minerals.
3. Creating red blood cells.
4. Moving red blood cells around the body.

Answers

Answer:  4. Moving red blood cells around the body.

Explanation:

The skeletal system is reponsible for

1. Protecting the vital organs.  ✅

2. Being a storehouse for minerals. ✅

3. Creating red blood cells. ✅

4. Moving red blood cells around the body. ❌ moving red blood cells aroud the body is the job of the blood (circulatory system)

Photosynthesis ____energy and cellular respiration_____
energy.
produces, requires
acquires, produces
stores, uses
requires, produces

Answers

Answer: stores and uses

Explanation:

Stella described protein synthesis as a process that makes the necessary proteins for the human body to function. She
explained the process in the following steps.
1. DNA is transcribed into mRNA.
2. Amino acids form a chain.
3. The amino acid chain is folded into a protein in the endoplasmic reticulum.
What step did Stella miss in her explanation?
(1 point)
O Polypeptide chains express gene traits.
O tRNA delivers the DNA to the ribosome.
hy
O DNA is replicated into two daughter cells.
O mRNA is translated into amino acids.

Answers

The step of protein synthesis missed by Stella would be the translation of mRNA into amino acids.

The process of protein synthesis can essentially be divided into 2, namely:

TranscriptionTranslation

During transcription, genetic information on DNA is transcribed into mRNA. Once this is done, the genetic codes in mRNA are then translated to their respective amino acids and linked by peptide bonds.

The polypeptide bond undergoes further processing such as folding in the endoplasmic reticulum.

Thus, before amino acids can form a polypeptide chain, they must first be translated from genetic codes in mRNA.

More on protein synthesis can be found here; https://brainly.com/question/16305465

Gene Expression Quick Check

Explanation:

1.DNA and RNA hold the code to create proteins that are the key to gene expression.

2.Endoplasmic Reticulum

3.CGTTACTGCAAT to CGTGACTGCAAT

4.The proteins are expressed differently in each cell.

5.mRNA is translated into amino acids.

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

True
Or
False

Answers

I pretty sure it’s true!

Where is the centromere located on the chromosome, and what is its role?
1. It is not exactly at the center, and it always makes the p-arm longer than the q-arm.
2. It is exactly at the center and it is responsible for making the q-arm longer than the p-arm.
3. It is not exactly at center, and it attaches to spindle fibers during cell division.
4. It is exactly at the center, and it attaches to spindle fibers during cell division.

Answers

Answer:

It is not exactly at the center, and it attaches to spindle fibers during cell division.

Explanation:

Did the test. Got it right.

Answer: The correct answer is C

Explanation:

I took the test


What properties of photosynthetic pigments allow pigments to absorb light of only certain wavelengths? Select all that apply.
Light of any energy level can boost an electron of the pigment molecule to a higher energy level in order to be absorbed.
Only light with the correct wavelength to boost an electron of the pigment to a higher energy level is absorbed.
Some pigment molecules lack a light-trapping region.
All pigment molecules possess a light-trapping region with a special structure that allows electrons to move freely
between Its atoms.

Answers

The properties of photosynthetic pigments that allow pigments to absorb light of only certain wavelength is ; ( B and D ) 

Only light with the correct wavelength to boost an electron of the pigment to a higher energy level is absorbed.All pigment molecules possess a light-trapping region with a special structure that allows electrons to move freely between Its atoms.

The Green pigment found in plants ( i.e. photosynthetic pigment )  that absorb light energy used by plants during  photosynthesis is the chlorophyll. It absorbs light energy based on the wavelength of the visible light while reflecting visible green light due to its wavelength.

The reflection of the visible green light by the chlorophyll gives the plants leaves the green color it possesses.

Hence we can conclude that The property of photosynthetic pigments that allow pigments to absorb light of only certain wavelength is ; Only light with the correct wavelength to boost an electron of the pigment to a higher energy level is absorbed. and statement D.

Learn more : https://brainly.com/question/24234175

the monomer of lipids are ______ _______ and ________ the monomers of carbohydrates are _______
word bank:
fatty, acids, monosaccharides, glycerol

Answers

Answer:

1) Glycerol and Fatty, Acids - Lipids

2) monosaccharides - Carbohydrate

How do the properties of water and the ability to modify the rates of chemical reactions enable living things to carry out functions necessary for life, such as digesting food?

Answers

Answer:

A chemical reaction is a process that changes some chemical substances into others. It involves breaking and reforming chemical bonds. They follow the Law of Conservation of Matter.

Explanation:

Energy is a necessity for all living organisms to survive, and ATP is a reactant that powers several other chemical processes inside cells. Cellular respiration is the method used by cells to produce energy.

What attributes of water are requisite for an organism?

The term “universal solvent” refers to water's enormous capacity to dissolve a wide range of molecules, and it is this capacity that makes water such a priceless life-sustaining agent.

Water has five key characteristics: strong polarity, high specific heat, high heat of vaporization, low solid density, and affinity for other polar molecules.

The process of converting one chemical substance into another is known as a chemical reaction. Chemical bonds are broken and rebuilt in this process. The Law of Conservation of Matter is observed by them.

Therefore, Water's function as a solvent aids cells in the transfer and utilization of chemicals like oxygen and nutrients on a biological level.

Learn more about water here:

https://brainly.com/question/2561424

#SPJ2

in a eukaryotic cell, where does transcription occur?

Answers

Answer:

transcription occurs in the nucleus, and translation occurs in the cytoplasm.

Explanation:

Define classification.
(In biology)

Answers

Answer:

the establishment of a hierarchical system of categories on the basis of presumed natural relationships among organisms.

hope this helps <3

Which underwater ecosystem is made of calcium carbonate structures?


tide pools

coral reefs

kelp forests

salt marshes

100 points and if correct brainliest <33

Answers

Answer:

coral reefs

Explanation:

Coral is a sea living or aqueous animal.Coral shells are made of solid calcium carbonate.Chemical formula for calcium carbonate is CaCO3

Answer:

Coral reefs OR A coral reef

Explanation:

It's function is to provide protection / shelter for different species of fish/water wildlife.It is an ecosystem Which is under water.Corals are marine/ocean invertebrates (without a backbone)

what happens when the epiphyseal plate is ossified

Answers

Answer:

Bones grow in length at the epiphyseal plate by a process that is similar to endochondral ossification. When cartilage growth ceases, usually in the early twenties, the epiphyseal plate completely ossifies so that only a thin epiphyseal line remains and the bones can no longer grown in length.

PLEASE HELP! asap !
What evidence do we have that the lithospheric plates that makeup Earth's
surface have moved?
i need 3 pieces of evidenced possible please!

Answers

Evidence from fossils, glaciers, and complementary coastlines

The Earth moves in predictable patterns. One of these patterns causes approximately 12 hours of daylight and 12 hours of darkness during a 24-hour period in areas around the equator.

This movement is referred to as —


A. a rotation
B. an equinox
C. a photoperiod ,
D. a revolution

Answers

Answer:

D

Explanation:

A Revolution.  One revolution is equal to a day.

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