What is a rock? What are the main components of a rock
please say​

Answers

Answer 1

Answer: A rock is a naturally occurring solid mass made of either one mineral or a variety of. Minerals are the main components.



Explanation:


Related Questions

How can slime molds be both unicellular and multicellular?

Answers

you look like a daniela

Which plate is the Eurasian plate?
A. D
B. C
C. B
D. A

Answers

i believe it’s D. :)

What is a fishing bed

Answers

A fishing bed is an underwater solid surface on which fish spawn to reproduce themselves

Some researchers argue that the robust australopiths should be classified in a separate genus. What is that genus called

Answers

Answer: Researchers argue that robust Australopithecines should be classified in a separate genus called Paranthropus.

Explanation:  The "robust" australopiths are a group of fossil hominins that existed in East and southern Africa between approximately 2.5 and 1.4 million years ago (Ma). They are referred to here as members of the genus Paranthropus, though considerable disagreement about their proper taxonomy persists. (credit to the internet)

plant and animal mitosis are very similar except for cytokinesis. explain how this process is different.

Answers

Answer:

Cell division or cytokinesis in mitosis or meiosis is very similar... There is a region of division to separate the two daughter cells in both processes; however, the division plate is slightly different between animal cells and plant cells. In animals, the region of division is a division plate. hope this helps! :)

Identify the organelles in the cell to the right.
А
חד
F
В.
А
B
С
с
C
D
E
F
E
DONE
D
plant cell

Answers

Answer:

A- Vacuole  

B- Chloroplast  

C- Cell membrane

D- Golgi bodies

E- Smooth and rough endoplasmic reticulum  

F- Cell wall

Explanation:

This is a structure of a plant cell which unlike animal cell has a cell wall as well as plasma membrane. It also contains large vacuoles present in the center of the cell. The green color of the plants is due to the presence of chlorophyll which is present in an organelles called chloroplast.

Organelles which are labelled in the cell are

A:Cell membrane

B:Vacuole

C:Nucleus

D:Cytoplasm

E:Chloroplast

F:Cell wall

The given figure represents a plant cell. So, the correct option is C.

What is Plant cell?

Plant cells are defined as eukaryotic cells that contain a true nucleus as well as specialized structures known as organelles that perform certain specialized functions. Plant and animal cells both contain a nucleus with similar organelles but plant cells differ due to the presence of a cell wall outside the cell membrane.

In the given figure, labelled organelles function are as follows:

Vacuole stores food, extra water, and waste while cell membrane permits selective passage of things into and out of the cell. The cell's nucleus serves as the activity's control centre, while the cytoplasm is the fluid that gives the cell its jelly-like consistency. Chloroplasts contain a substance called chlorophyll that is a green pigment that aids in photosynthesis. The cell wall of a plant gives it form, stiffness, strength, and protection.

Thus, the given figure represents a plant cell. So, the correct option is C.

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Your question is incomplete, most probably the complete question is:

Identify  the organelles in the cell to the right and label the parts A, B, C, D, E and F.

A.

A:Cell membrane

B:Vacuole

C:Nucleus

D:Chloroplast

E:Cytoplasm

F:Cell wall

B

A:Cell membrane

B:Vacuole

C:Nucleus

D:Cytoplasm

E:Chloroplast

F:Cell wall

C

A:Cell membrane

B:Nucleus

C:Cytoplasm

D:Vacuole

E:Chloroplast

F:Cell wall

D

A:Cell wall

B:Cell membrane

C:Nucleus

D:Cytoplasm

E:Chloroplast

F:Vacuole

How do you know that flowers have undergone fertilizer even before they turn into fruits?​

Answers

Answer:

we can know for eg an apple when u buy it and scrape the skin of the apple if you wind some waxy substance from it we can say this has been done to increase the shine so customers think this is a good apple and please do was fruit and vegetables after buying them throughly.

An scientist observes a population of cheetahs on the plains in southern Africa and noticed that cheetahs have very little genetic variation. The scientists claims that the cheetahs are susceptible to extinction as a result of climate change. What is the name of the effect the scientist observed and why is it a concern ?(1 point)

Disaster effect, because the cheetahs have mutated to produce ineffective proteins

Frameshift mutation, because it only produces ineffective proteins.

Substitution mutation, because the these mutations cannot be passed to offspring

Bottleneck effect, because it means most cheetahs could succumb to the same environmental stresses

Answers

Answer:

Bottleneck effect, because it means most cheetahs could succumb to the same environmental stresses

Bottleneck effect, because it means most cheetahs could succumb to the same environmental stresses.

 There is a decline in the population size in because bottleneck effect limit the genetic diversity of the species as only a small part of original population is there.

What is bottleneck effect?

The bottleneck effect refers to the way in which a reduction and subsequent increase in population's size affects the distribution of genetic variation among its individual.

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Please, someone, help me with this asap!

Observe the cut ends of the flatworms using the hand lens or the dissection microscope immediately after cutting.
What do you see?
Are there distinct differences between the two ends?
Observe the cut ends of the flatworms over a period of several days. Do the flatworm halves continue to exhibit the same degree of difference that was seen right after they were cut in two?
What kinds of changes occur in the flatworms as they recover from having been cut in two?

Answers

The above question requires a personal answer about your experience with cutting flatworms. I can't tell you what you saw in this cut, but I'll show you what happens when it occurs.

First of all, you must understand that flatworms are worms with a great capacity for cell regeneration even if several pieces have been cut.

In this case, when a flatworm is cut in half, we can see the following events happen:

At the moment of cutting, the two ends of the flatworm body are equally shaped and are straight ends, without deformations.The ends will not be different if the cut is done accurately, but it may differ slightly.After several days, the ends will present some deformations and will lose the straight shape caused by the blade.Deformations are extremely similar and change similarly.When recovering from the cuts, each side of the flatworm body formed a new flatworm and they are no different, they are the same and they are completely recovered.

This is because the cellular regeneration of flatworms is very fast and allows any part of the flatworm's body to create exactly the same beings, as they have the same genetic makeup.

You can have more information about flatworms on the link below:

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4. View of space from earth keeps on changing because earth is.....?​

Answers

Answer:

Earth does not always spin on an axis running through its poles. Instead, it wobbles irregularly over time, drifting toward North America throughout most of the 20th Century (green arrow). That direction has changed drastically due to changes in water mass on Earth.

Explanation:

What does a plant need to create a glucose molecule in photosynthesis?

Choose all correct answers.


carbon dioxide

sunlight

water

oxygen

Answers

Carbon Dioxide, sunlight and water are used when a plant creates a glucose molecule

Answer:

sunlight

water

oxygen

Explanation: cuz i said

A place where animals and plants are protected is called

A) an ecosystem
B) a refuge
C) a sanctuary
D) both B and C

Hello! can someone help me w this pls

Answers

A place where animals and plants are protected is an ecosystem

What is oxidative phosphorylation.

Answers

Answer:

Oxidative phosphorylation or electron transport-linked phosphorylation or terminal oxidation is the metabolic pathway in which cells use enzymes to oxidize nutrients, thereby releasing chemical energy in order to produce adenosine triphosphate. In eukaryotes, this takes place inside mitochondria

Answer:

Oxidative phosphorylation is energy given by electron transport and this takes place during aerobic respiration in the mitochondria.

Explanation:

This process produces huge amounts of ATP, which is the unit of energy for metabolic processes.

the type of voltage-gated channel that possesses an inactivation gate that temporarily closes after the channel is active is the

Answers

The sodium channel possesses an inactivation gate that temporarily closes after the channel is active.

In neurons, sodium channels are responsible for the ascending phase of the action potential (depolarization).

Characteristically, this channel has two transmembrane voltage-dependent gates.

When the membrane is depolarized to the threshold, both gates are activated, but since one of them opens rapidly while the other closes slowly, the channel remains open for less than 2-5 milliseconds.

Therefore, we can conclude that the sodium channel is responsible for the depolarization and possesses two gates which one temporarily closes after the channel is active.

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do liver cells undergo meiosis?​

Answers

Answer:

In liver development, most Mono hepatocytes undergo the conventional cell cycle to replicate. However, some of them undergo mitosis without cytokinesis to produce Bi hepatocytes.

Explanation:

which of these organs is an accessory organ of the digestive system?

Answers

Answer:

Where is the picture??

Explanation:

Why is it important that mitosis occurs like this

Answers

Answer: The cell divides upon these processes during a process known as mitosis. In mitosis, two daughter cells are formed. It is important that each of the daughter cells contain genetic information that is identical to that of the mother cell, as well as that there be no mutations. Mitosis is Important for three main things:

> Growth

> Repair

> Reproduction

hope it helps.

To be honest i didn't get your question but i gave the basic info for Mitosis

Please pick me for Brainliest

Explanation:

Which of the following best explains what will happen if the blood gets too cold? A) It will have a high viscosity and increased resistance. B) It will have a low viscosity and increased resistance. C) It will cause low blood pH and decrease resistance. D) It will change the shape of blood cells and decrease resistance.

Answers

It will have a high viscosity and increased resistance.

Effect of temperature on blood

Low temperatures cause narrowing of blood vessels and arteries which leads to restricting blood flow and reducing oxygen to the heart.

Our heart must pump harder to circulate blood through the blood vessels which results in increasing of our blood pressure and heart rate.

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Answer:

The correct answer is A

Explanation:

i got it correct on my flvs exam

a eukaryotic cell that receives a go-ahead signal at the g1 checkpoint of the cell cycle will

Answers

Answer: If mammalian cells receive a go-ahead signal at the G1 checkpoint, they will D. complete the cycle and divide. G1 checkpoint occurs between the G1 and S phase of the cell cycle. When the cell is grown sufficiently and produces all components of DNA replication it enters in the S phase.

If mammalian cells receive a go-ahead signal at the G1 checkpoint, they will complete the cell cycle and divide.

What is cell cycle?

The cell cycle, or cell-division cycle, is the series of events that take place in a cell that cause it to divide into two daughter cells.

Moreover, a cell cycle is a series of events that takes place in a cell as it grows and divides. A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and completes its division.

The cell cycle consists of a series of steps during which the chromosomes and other cell material double to make two copies. The cell then divides into two daughter cells, each receiving one copy of the doubled material.

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How does humus help in plant growth?​

Answers

Explanation:

Humus gives the soil the ability to absorb and retain moisture. Such soils do not dry out and require significantly less irrigation. Humus provides a reservoir for the plant nutrients available in the soil for balanced plant growth.

Answer:

Humus gives the soil the ability to absorb and retain moisture. Such soils do not dry out and require significantly less irrigation. Humus provides a reservoir for the plant nutrients available in the soil for balanced plant growth.

how are unicellular and multicellular organisms alike

Answers

Answer:

that they exhibit all the functions of life

Explanation:

what is the general purpose of the light reactions of photosynthesis

Answers

Answer:

The overall purpose of the light-dependent reactions is to convert light energy into chemical energy. This chemical energy will be used by the Calvin cycle to fuel the assembly of sugar molecules.

Explanation:

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Uy may nag abroad ah

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What features distinguish annelids from roundworms?

Answers

Answer:

Annelids have a well developed mesoderm while round worms lack a mesoderm.

Annelids are segmented worms whereas round worms are not segmented.

Annelids have a true coelom while round worms have a pseudo coelom.

retreat of alpine glaciers is caused by what process?

Answers

Answer:

Glaciers may retreat when their ice melts or ablates more quickly than snowfall can accumulate and form new glacial ice. Higher temperatures and less snowfall have been causing many glaciers around the world to retreat recently.

Explanation:

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please help i will give brainliest

Answers

Answer:

Mark Brainliest

Explanation:

Trap NestSaltStarter MashInternetPneumoniaPeiits GoatsChicken CoopPlankTonsFertilizer

what is the dominant impact that humans have on alpine glaciers?

Answers

The researchers estimate that between 1990 and 2010, some 69 percent of the mass lost by the world's alpine glaciers can be traced to human influence – basically global warming. This 2013 file photo shows the Mendenhall Glaicer where it spills over the mountains above Mendenhall Lake in Juneau, Alaska.

Answer:

Human activity is playing an increasing role in the melting of glaciers, Austrian and Canadian scientists have found. One of the most disruptive effects of climate change, glacier retreat leads to rising sea levels, landslides and unpredictable availability of water downstream.

Explanation:

I hope it helpful to you.

...

which cell type would contain the greatest number of mitochondria?

Answers

Answer:

It is generally believed that the cells that have the most mitochondria in them are the muscle cells.

Answer:

Muscle Cell

Explanation:

Processes that add carbon to the atmosphere are called what

Answers

Answer:

Combustion

Explanation:

What are some geological characteristics of glaciers in Glacier National Park?

Answers

Answer:

The minimum size criterion for a glacier is 0 .1 km², or about 25 acres. Below this size, the accumulated ice generally does not move and is stagnant. Many years of snow accumulation compacts the bottom layers of snow into ice. Under the huge weight of the snowpack (usually 100ft/30.5m thick or more), the ice becomes viscous and allows the mass to slide downhill. The appearance of crevasses and cracks attest to a glacier’s movement. Glaciers don't "bulldoze" landscape as much as they melt and re-freeze, plucking material from areas of snow deposition and moving it to other areas, like downhill conveyor belts.

Explanation:

Right on ED2021, good luck!

Can you help me (only used these terms)

Molecule
Subscript
Element
Solid
Compound
Liquid
Pure substance
Mixture
Vapor (gas)

Answers

Answer:

Subscript- tells how many of each atom there are in a chemical formula

element- a substance containing only one type of atom

solid- a state of matter where particles vibrate and are not free to move

compound- two or more atoms chemically bonded together

liquid- a state of matter in which particles slip past each other

pure substance- all of the smallest individual pieces are the same

mixture- different types of atoms or molecules that are physically mixed together

vapor- a state of matter in which molecules are far apart

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