8. Write down the definition for the term "cross section” ?

Answers

Answer 1
I highly believe that cross section is either a shape or surface that would be exposed by a cut through something.

Related Questions

Which of the following presents the best argument as to the role of the cow in this cycle?

Answers

Answer:

Cow dung helps in balancing the environment and kills germs

Explanation:

Cow dung is used for fertility of the soil. It is also used for the control of pest in the plants. When heated cow dung can be used to cook food where there are lack of wood available. Also when it is heated it releases the gases which kills germs present in the air.

Answer:

The cow eats plants and produces carbon dioxide through cellular respiration. The plants, which gain energy from the sun, then take carbon dioxide from the atmosphere and use it in photosynthesis.

Explanation:

I did the test

The Pompeii worm was discovered near _______. a. a hydrothermal vent b. a sea mount c. Hawaii d. the great barrier reef Please select the best answer from the choices provided A B C D

Answers

Answer:

The answer is A. hydrothermal vent

Explanation:

I just did it

Alvinella pompejana is known as the Pompiee worm. This organims is found in the deep hydrothermal vents in the Pacific ocean. Thus, the correct option is A.

What is Pompiee worm?

Alvinella pompejana, the Pompeii worm is a species of the deep-sea polychaete worm. It is an extremophile found only at the hydrothermal vents of the Pacific Ocean, discovered in the early 1980s off the Galápagos Islands by the French marine biologists.

The Pompeii worm (Alvinella pompejana) is a deep-sea polychaete vermiform extremophile. This organism can survive at extreme conditions. It is possible because of their bacterial coating which redistributes the heat to keep the worm cool. This bacteria not only help regulate the temperature of the worm but they also break down minerals from the vent to aid their host.

Therefore, the correct option is A.

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Many processes occur in the digestive system .which process is best classified as a physical change

Answers

Answer:

This question lacks options, the options are:

A) Saliva converting the starch molecules in crackers into simple sugars

B) Digestive enzymes breaking down proteins into smaller fragments

C) bacteria converting lactose into simple sugars in the intestines

D) teeth grinding an almond into smaller pieces in the mouth

The answer is D

Explanation:

A physical change is a change that occurs to a substance without altering its chemical composition. A physical change involved a change in the substance's shape, texture, color, state etc. but not the chemical content of such substances.

In this question involving the processes that occur in digestion, a typical example of physical change is "teeth grinding an almond into smaller pieces in the mouth" because the teeth only changes the shape and texture of the almond. It does not affect the chemical composition of the almond fruit. This is also called mechanical digestion.

Note that, other options involving digestive enzymes breakdown are chemical changes because the enzymes breakdown the chemical components of each substance.

Answer: D

Explanation: because you are breaking down food in a physical change

As you have observed, animal hairs usually have a large medulla composed of air-filled compartments. These air-filled compartments are present for a reason and can actually help hair do its job better. Describe one reason that might explain why having a hair made of air filled compartments could be helpful to an animal.
PLEASE HELP

Answers

Answer:

to provide insulation

Explanation:

The medullary index is the proportion of the diameter of the hair medulla in regard to the diameter of the entire hair: The equation to calculate the medullary index is medulla diameter/hair diameter. In animals, the hair medulla is generally thicker compared to humans (medullary index approximately 0.5 and 0.33, respectively). The thicker the diameter of the hair medulla, the better is the insulation.

What organelle is labeled ?

Answers

um, is there supposed to be a picture??...

Which processes provides evidence for the claim that energy is transferred
during cellular respiration? Select all correct answers.

A. The electron transport chain

B. Carbon dioxide is released

C. hydrogen ions move down the concentration gradient across the inner membrane

D. transfer of electron carriers such as NADHand FADH2

E. water is formed

Answers

Answer:

B. Carbon dioxide is released

E. water is formed

Explanation:

Cellular respiration is defined as the metabolic processes in which chemical energy is converted into ATP and the waste product is released by the cells.

The processes that provide evidence for the claim that energy is transferred  during cellular respiration are Carbon dioxide is released and water is formed. During cellular respiration, oxygen and glucose are converted into carbon dioxide and water, and the energy is transferred to ATP.

Hence, the correct answers are "B and E".

Answer:

OPTION B&E.

Explanation:

WHEN ANYTHING UNDER GOES COMBUSTION IT RELEASES CO2.

⚠️ i will mark brainliest
how does matter move from the hydrosphere into the biosphere explain in your own words

Answers

Water moves from a river (hydrosphere) into the air (atmosphere) by a process called evaporation. Carbon dioxide moves from your body (biosphere) into the air (atmosphere) by a process called respiration. Minerals move from rock (geosphere) into the soil (pedosphere) by the process of weathering.

Water mover form hydrosphere i.e river to biosphere i.e atmosphere by a process of  evaporation.Thus, we can say that matter is move from hydrosphere to biosphere.

What is hydrosphere and biosphere?

Hydrosphere:-

The hydrosphere is the collective mass of water which is found on under, or above the surface of earth. Although earth hydrosphere is 4 billions old. A planet's hydrosphere can be liquid, vapor or ice.

Biosphere:-

The region or area of surface where living organisms survive their life are called as biosphere. The biosphere is a narrow zone on the surface of the earth where soil, water, and air combine to survive life.

Evaporation:-

The process in which water or liquid converts into vapor is called as evaporation.  In the case of water it starts vaporization at 100 degree C.

So, we can say that the conversion of matter from hydrosphere to biosphere is successfully achieved by evaporation.

Therefore, Water mover form hydrosphere i.e river to biosphere i.e atmosphere by a process of  evaporation.Thus, we can say that matter is move from hydrosphere to biosphere.

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Which of the following examples would be classified as a biotic component in a freshwater system

Fish
Ph of the water
Soil
Water

Answers

Answer:

Fish, water pH and the water itself

Explanation:

Fish affect the freshwater system since they live and excrete their waste in the water

pH levels of water should not be below 6 or above 8 for a healthy drink

Also, algae affects the freshwater system

What do you think would happen to a shell-less ("naked") egg if water passed through the membrane

Answers

Answer:

Explanation:

I think it will wash out the yolk and something else out

Guys I need help
Please it DUES TODAY please
GUYS IT SOOOOOO HARD

Answers

Answer:

the pod splits, the cherry's bright red attracts  animals to eat it and the last one is called a Bur

Explanation:

Most mutations that cause cancer occur within body cells, and body cell mutations are not inherited. If cancer is not inherited, why does cancer statically appear to run in families?

Family members have a similar genetic make-up that may make them predisposed to cancer.
Family members are exposed to similar environmental conditions.
Family members have a widely varied genetic make-up that can be affected by specific mutagens.
Family members share the contagious mutagens that can be passed by close exposure.

Answers

Answer:

Family members have a similar genetic make-up that may make them predisposed to cancer.

Explanation:

Variation in certain genes can increase the risk of developing certain cancers. This is why certain cancers run in families. There are lots of examples where the risk factor is small, but in some cases, the risk factor is very large.

For example, mutations in BRCA1 are very highly linked to the risk of breast cancer. As a result, many women with mutations in this gene opt to get a mastectomy to reduce their chances of developing breast cancer.

8
An ocean food chain is shown below. Which organisms represent the trophic level
containing approximately 1% of the initial amount of solar energy (1000Kcal) acquired by
the phytoplankton?
2
Humans
Copepods!
Herring
Phytoplankton
Sand eels
OOOO
herring
humans
sand eels
copepods

Answers

Answer:

copepoda show the initial 1% amount of solar energy acquired by the phytoplankton

how does an inclined plane affect the work that is done on an object?

Answers

inclined plane allows the same work to be done with a smaller force exerted over a greater distance.

Fungi have characteristics that make them similar to both plants and animals. Which characteristic do fungi share with plants but not animals?

·reproduce sexually
·contain nuclei
·have cell walls
·make their own food

Answers

Explanation:

·have cell wall

cell wall is present in plant and fungi due to protection

but not in animals due to locomotion mode of life

Fungi have cell walls characteristic which fungi share with plants but not animals, hence option C is correct.

What are the characteristics of fungi?

When compared to animals, fungi need prepared organic substances for energy because they are heterotrophic organisms without chloroplasts.

Fungi are eukaryotic organisms, just like plants, and have nuclei in each of their cells. Like plants, fungi lack a cell wall and vacuoles, however, they do have a material called chitin in their cell walls that plants do not. In numerous important respects, fungi are also similar to animals.

Eukaryotic, non-vascular, immobile, heterotrophic creatures are fungi. They could be filamentous or unicellular and spread spores to reproduce. The phenomena of generational alternation are seen in fungi.

Therefore, in comparison to plants, fungi have vacuoles and a cell wall.

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Which of the following is NOT true about matter in the biosphere?
a) Matter is transferred in one direction through the biosphere. b) Biogeochemical cycles transform and reuse molecules. c) The total amount of matter decreases over time. d) Human activity does not affect the movement of matter

Answers

Answer:

c) The total amount of matter decreases over time.

Explanation:

The statement 'the total amount of matter decreases over time' is NOT true about the matter in the biosphere (Option c).

The biosphere refers to the total of all ecosystems of the Earth.

The biosphere can be defined as a closed system in terms of matter because matter does not enter or exit.

In the biosphere, the total amount of matter remains constant over time, whereas the total amount of energy decreases over time.

This energy is lost in the form of heat when it spreads from the Earth's surface and outward into space.

In conclusion, the statement 'the total amount of matter decreases over time' is NOT true about the matter in the biosphere (Option c).

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You can use the table provided or use the Insert Table button to design your own table. Here is an example for one
gene:
Gene
Name
Chromosome
Sex
Chromosome
(Yes or No)
Role of
Non-mutated Gene
Effect Mutated Gene Has on Body
Gene 1
CTFR (ID:
1080)
Chromosome 7
No
important for ATP use
linked to autosomal recessive disease,
cystic fibrosis
В I o x x,
Font Sizes
A
!!!
EE 를 들 들
O
Gene
Name
Chromosome
Sex
Chromosome
(Yes or No)
Role of
Non-mutated Gene
Effect Mutated Gene Has on Body
Gene 1
Gene 2
Gene 3
OI
O
Gene
Name
Chromosome
Sex
Chromosome
(Yes or No)
Role of
Non-mutated Gene
Effect Mutated Gene Has on Body
Gene 1
Gene 2
Gene 3

Answers

Answer:

go to the website it provides for you

(I tried to put it in here, but it took down my answer)

This website (if you follow the instructions) it should be very easy; it gives you all the answers to update the table with. I hope this helps!

Explanation:

Edmentum

Answer:54587;

Explanation:Gigi if sti is ryy r why

Which best explains why the sun maintains its size and shape?
A. Pressure caused by high temperatures are balanced by gravity.
B. The sun burns from its core to its surface.
о
C. Forces exerted by orbiting planets cause the sun to rotate.

Answers

Answer:

A

Explanation:

The Suns own weight keeps itself together and keeps its size and shape. all things have gravity. in this case, the sun keeps it shape with balancing its gravity with the pressure.

The best explanation of why the sun maintains its size and shape is forces exerted by orbiting planets cause the sun to rotate. The correct option is C.

What is orbiting?

"Orbiting" is one of those digital dating terms that perfectly describes what many of us have experienced but didn't realize had a name. It's when someone you were dating tells you they're no longer interested but keeps in touch with you on social media.

The Sun's own weight holds it together and maintains its size and shape. Everything has gravity. In this example, the sun maintains its shape by balancing gravity and pressure.

Planets orbit the sun in elliptical orbits, with the sun slightly off-center of each ellipse.

Therefore, the correct option is C. Forces exerted by orbiting planets cause the sun to rotate.

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The table compares prokaryotes, plant cells, and animal cells
Complete the table.
Present
Absent
Structure
Prokaryotes
Plant cell
Animal cell
Nucleus
Present
Cell Wall
Absent
Mitochondria
Absent
Chloroplasts
Absent

Answers

Answer:

Structure Cell 1 Cell 2

DNA Located in cytoplasm Located in nucleus

Cell membrane Present            Present

Cell wall                 Present            Absent

Mitochondria         Absent            Present

Ribosomes         Present           Present

Explanation:

Answer:

Nucleus : Absent Present Present

Cell Wall: Present Present Absent

Mitochondria: Absent Present Present

Chloroplasts: Absent Present Absent

Hope This Helps

- Greg

What are the best keyboard switches?
I'm building a mechanical keyboard and what switches should I order?

Answers

Answer:

go ask this on reddit not brainly

Explanation:

Which of the following processes occurs before cellular respiration?
A) glycolysis
B) fermentation
C) ATP conversion
D) cellular respiration

Answers

The answer is glycolysis

1. A rabbit can cover a distance of 80 min 5 s. What is the speed of the rabbit?

Answers

I did 80 divided but 5. Which gave me 16 so the speed of the rabbit is 16 mph

Answer:

[tex]\boxed {\tt 16 \ m/s}[/tex]

Explanation:

Speed can be found by dividing distance by time.

[tex]s=\frac{d}{t}[/tex]

The rabbit travels 80 meters in 5 seconds.

The distance is 80 meters and the time is 5 seconds.

[tex]d= 80 \ m \\t- 5 \ s[/tex]

Substitute the values into the formula.

[tex]s=\frac{80 \ m }{5 \ s}[/tex]

Divide.

[tex]s= 16 \ m/s[/tex]

The rabbit's speed is 16 meters per second.

5 points
Transmembrane proteins span the width of the cell membranes. Four types of transmembrane proteins are shown in a section of cell membrane.
groene
Although these proteins have different specific functions, they all-
A-stop chemical reactions within the cell

B-synthesize molecules that signal other cells

C- help the cell interact with its external environment

D- remove large waste particles from the cytoplasm of the cell

Answers

Answer:

C. help the cell interact with its external environment

Explanation:

A transmembrane protein (TP) is a type of integral membrane protein that spans the entirety of the cell membrane. Many transmembrane proteins function as gateways to permit the transport of specific substances across the membrane.

Although transmembrane proteins have different specific functions, they always HELP the cell interact with its external environment.

Transmembrane proteins are a broad category of membrane proteins that act as carriers and/or transporters in order to allow the movement of specific substances across cell membranes.

After binding to their specific ligands, the three-dimensional (3D) shape of transmembrane proteins changes in order to allow the movement of molecules and ions through the cell membrane.

For example, aquaporins are a type of transmembrane protein that regulates the entry of water (H2O) molecules into and out of cells.

In conclusion, although transmembrane proteins have different specific functions, they always HELP the cell interact with its external environment.

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Orange trees planted in a grove or orchard would most likely fall in which category of population distribution?

a.even

b.random

c.clumped

d. density

Answers

Answer:

A) Even

Explanation:

got it right on edge :)

Orange trees planted in a grove or orchard would most likely fall in the even category of population distribution. The correct option is a.

What is population distribution?

Population distribution is how the population of something, plants, animals, or humans is distributed in specific areas. It specifies where people live or where they are not living.

There are three types of population distribution:

Uniform dispersion - In this distribution, the population is uniformly or evenly distributed in the areas. Even distribution comes under this distribution.Random dispersion - there are no predictable patterns in this dispersion. They are randomly present anywhere.Clumped dispersion - This distribution shows the bunch or group of population is areas then there is no population, and then there is a a bunch of population in another place.

Thus, the correct option is a. even.

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True or false:
This is for science and I only have one more question but it's getting me stuck: if you get this right I'll vote you brainiest!:)

If a gene sequence changes, the proteins associated with that gene could likewise
be affected. True/False

Answers

Answer:

True

Explanation:

Describe a car’s velocity as it goes around a track at a
constant speed.

Answers

Answer:

If the car is going at a constant speed then the velocity isn't changing, only the direction of velocity.

Which organelle would you expect to find in animal cells but not plant cells?

O A. mitochondrion

OB. ribosome

C. lysosome

O D. A. smooth endoplasmic reticulum

Answers

Answer:

Lysosome

Explanation:

The answer is C tehe

What factor has the greatest impact on an enzyme?

Answers

Answer: Higher Classifications: Protein

Explanation:

Collectively, these are the most important properties of the enzyme. There are several factors that affect the speed of an enzyme's action, such as the concentration of the enzyme, the concentration of the substrate, temperature, hydrogen ion concentration (pH), and the presence of inhibitors.

Which type of rock forms as a result of cooling and crystallization?


igneous


metamorphic


clastic


sedimentary

Answers

Igneous rocks

No need for explanation

state two differences between DNA and RNA in each give two examples​

Answers

Answer:

Hope this helps you. I am very sorry for my handwriting .

Given that almost all organisms obtain energy from food by the process of cellular respiration, which is the most likely explanation for what prevents Earth from running out of oxygen?

Answers

Answer:

Oxygen cycles keeps the flow of oxygen at a constant rate.

Explanation:

The oxygen constitutes about 20% of the gaseous components in the atmosphere and it's being renewed continuously by the various microorganism and primary producers as green plants that use photosynthesis and converts the sunlight and carbon dioxide to water and releases oxygen. Oxygen cycle makes life possible as most of the elements are combined with oxygen in some way or another and are found on the lithosphere, hydrosphere, and atmosphere even biosphere hence its is present insufficient amounts.

Answer:

A.)     The net effects of the reactions of photosynthesis and cellular respiration are the opposite of one another, therefore the products of one are the reactants of the other, creating a cycle.

Explanation:  Hope this helps!!

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Light waves do not require a medium, but travel fastest through solidsD.Light waves do not require a medium and travel fastest when in a vacuum A gallon of gas costs an average of two dollars is Betty spends $144 a month on gas determine how many gallons of gas she uses a month After the First National Bank's charter expired,the government never chartered another national bank.a Second National Bank was chartered immediately,a Second National Bank was chartered a few years later,the government created the Federal Reserve the next year. Idk how to do this?!! SPENCER, North Carolina (Achieve3000, May 17, 2019). Don't ever let anyone tell you that young people can't do great things. Take it from Mrs. Fleming's 7th-grade class at North Rowan Middle School in North Carolina. This compassionate classroom crew is proof-positive that young people can make a difference in the lives of others. And activism can begin with four little words: How can we help?So how do you go from sitting in a classroom to tackling the problems of the world? For Mrs. Fleming's class, it all started with learning about horrible global events that devastate individuals, families, and communities."We planned a trip to Washington, D.C., so that we could immerse ourselves in learning about the Holocaust and refugees," said Mrs. Fleming. "We [also] had the opportunity to participate in a Doctors Without Borders interactive refugee exhibit. We read Achieve3000 articles and novels about refugees, and we watched documentaries and news clips."Then, the students had yet another extraordinary experience: the chance to speak via video teleconference to a refugee named Lubo, one of the estimated 20,000 Lost Boys who found themselves displaced or orphaned during a deadly civil war that began in Sudan in the 1980s. The students were very moved by Lubo's story as he told them about what he witnessed before he fled Sudan."The enemy from the North attacked, people were caught, houses burned, nothing [was] left," student Katie P. remembered him saying. "[It was] really sad because all he had and everything he lived for was no longer there, no one to count on, nothing.""[We realized that] we usually took everything for granted," said Katie's classmate, Jennifer G. "We never appreciated what we had."It's one thing to read about history, and quite another to hear from someone who lived it, and who made it clear that Sudan is still affected by life-threatening issues like poverty and lack of access to clean water. The students knew they had to do something, and that's when they asked: "How can we help?"Soon, they found their answer.The class was invited by the nonprofit group Mothering Across Continents to host a Walk for Wisdom walkathon to raise money and awareness for impoverished schools in South Sudan. It was a great ideabut the students wanted to take it further."We said 'yes,' but asked if we could involve our whole community," Mrs. Fleming said. She joined forces with Karen Puckett, a media specialist at Isenberg Elementary School in Salisbury, North Carolina, which had participated in a school-based Walk for Wisdom for several years.Meanwhile, the students in Mrs. Fleming's class leaped into action, working in teams to design t-shirts and flyers for the April 2019 walkathon. They also created an iMovie, a website, and a GoFundMe page to help raise money.Even after all that, the students were just getting started! They planned a Refugee Awareness Community Night at their local bookstore, where they spoke to Ngor Kur Mayolanother Sudanese refugee. The event featured their presentations, art, and writing, as well as a marketplace to raise money for a source of clean water for the students at Nyarweng Primary School in South Sudan.Mrs. Fleming and her students hope they will eventually be able to exchange messages and photos with the Nyarweng Primary School pupils.All this might be just the beginning of an ongoing effort. "Our hope is that these events will turn into yearly global events for our county, and that our community will unite for a global cause to help youth in another country," Mrs. Fleming explained.Needless to say, Mrs. Fleming is extremely proud of how her class has stepped up to helpnot that she's surprised."Our students have incredible ideas," she said. "All we need to do is listen and encourage. I love seeing where my students' voices and actions can lead us."And if you want to make a difference in the lives of others, student Kimberly F. has some advice."You may think that starting a project to change the world would be difficult," she said. "But if you really put your mind into it, you can achieve amazing things. It can start with a simple act in your community, but you'll see that it will grow and grow."Most importantly, the students say, don't ever feel like you're too young to make a mark on the world."There are many things we are limited to do because we are kids," Katie said. 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Translate the sentence into an equation.Seven times the sum of a number and 2 is 6.Use the variable y for the unknown number. ABC is a straight line. which equation can be used to find the measure of the unknown angel?