A closed system is a system in which
(a) Matter can enter and leave
(b) Matter can enter but cannot leave
(c) Matter can leave but cannot enter
(d) Matter does not enter or leave

Answers

Answer 1

Answer:

B - Matter can enter but cannot leave

Explanation:

I looked it up, sorry if wrong

Answer 2
^ yea what they said

Related Questions

brainliest! question is in pic

Answers

Answer:

I know the muffin man and the muffin man knows me lol

I unfortunately do not know the muffin man and he does not know me

Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

i believe that the answer is B
I think the answer is b

If you had to define ecological succession in your own words in a 140 character text, how would you define it?

Answers

Answer: Succession is like winning a race. You get to acomplish something that you wanted to do.  sorry this is short

Explanation:

Ecological succession is when the structure of a biological community evolves overtime. For example, when a tree falls in a forest, the sunlight may be able to reach the forest floor, which would allow new growth to begin.

This is hard. pls help. Write an equation for cellular respiration. Write an equation for photosynthesis. How are these two equations related?

Answers

Answer:

equation for cellular respiration: C6H12O6 + 6O2 + 6H2O → 12H2O + 6CO2

equation for photosynthesis:: 6CO2 + 6H20 + (energy) → C6H12O6 + 6O2

Plants make their own food by photosynthesis. During photosynthesis a plant takes in water, carbon dioxide and light energy, and gives out glucose and oxygen.

Explanation:

Plants make their own food during photosynthesis

please help me with this!! I will mark brainliest!

Answers

Well, the seedless plants reproduce and when they do produce, they provide good for the consumers in the environment and omnivores . Also when reducing, the release carbon dioxide, and when the animals die the body’s leave nutrients , which means that it will dig into the soil and will be used by other organisms.

which of these is not a molecule
A) DNA
B) water molecules
C) single atoms
D) medicines

Answers

I think it’s D because Medicines don’t really have molecules

Answer:

d) medicines

have a nice day! <3

Which best explains why sexual reproduction produces greater variations among offspring? *

A The DNA come from two genetically different parents.
B The DNA cells from one parent that is genetically identical.
C The sex cells are produced by mitosis.
D The sex cells undergo self fertilization

Answers

Answer:

A The DNA come from two genetically different parents.

Explanation:

Everyone has different genetics. They are determined by sex cells that are produced by MEIOSIS NOT mitosis. Meiosis allows for genetic variation amoung offspring along with the genetically different parents.

The DNA come from two genetically different parents explains the best reproduction greater variations among offspring.

What is sexual reproduction?

Reproduction is the act of one or more parents creating a new individual (offspring), frequently within the same species. It is among the characteristics of a living creature.

Sexual reproduction, we mean a process where two parents' genetic material is combined to create a child. When two haploid gametes combine, a genetically unique diploid child is produced.

The word "sexual" has a Late Latin etymology that stems from the word sexus, which means "of copulation or generation." The word reproduction is also derived from the Latin words re, which means "again," and productio, which means "creation." Alternative: syngenesis.

Therefore, The DNA come from two genetically different parents explains the best reproduction greater variations among offspring.

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According to the table "Balance of the Carbon and Nitrogen" on page 6, which substance has the highest carbon to nitrogen ratio?




Pick the answer choices down below!!!

Answers

Answer: Vegetable waste

Explanation:

Vegetable waste is the answer

BRAINLIEST IF ANSWER QUICKLY

1. Identify a period of time when this population showed exponential growth? Explain how you know this.

2. At what point in time did the population reach its carrying capacity? Explain how you know this.

3. The population's actual growth (in red) often goes above and below the carrying capacity in a cycle, why do you think this happens?

Answers

Answer:

1. 1850

2. it stays on carrying capacity until, about 1835

3. because people are born in generations

Explanation:

1. because the overshoot line grows very quickly around 1850

2. simply an estimate to where i think it lines up

3. once one generation is born, the older one dies.

Answer:

1. Around 1850 is the period of time when the population showed exponential growth.

2. The population reached its carrying opacity technically around 1850 as well but it was much closer to the direct line at around 1870-1875.

3. I believe this happens because of sickness and people choosing to leave the area. (There are many other reasons I am sure you can come up with)

Explanation:

These are the answers that fit best! I a so sorry for taking so long! You should certainly give brainliest to someone else but still-

If you found this to be helpful please leave a thanks, and a rating!

If this answer is correct maybe you can mark my answer brainliest! I hope you do well on your assignment!

~Ace <3

Sarah the Cheetah ran a 100 meter dash in 5.95 seconds at the San Diego Zoo, setting a new world record for mammals. What was Sarah's speed in Meters per Second? (Just write the number, rounded to the nearest tenth, no units)

Answers

Answer:

16.3 Meters Per Second

Explanation:

To find out the speed, you need to simplify 100/5.95

To do this, you first round up to 6.

[tex]100/6=50/3=16.333333[/tex] meters per second

Rounded up, it is 16.3 Meters per Second

The Sarah's speed in Meters per Second was 16.3 m/s.

What is speed?

Speed is defined as a measurement of the length of time it takes for an object to travel a certain distance. To increase your strength and begin running more quickly, do sprinting drills and exercises including box jumps, high knees, hill sprints, and other core workouts. Strengthening your entire body can also be accomplished by including some type of strength exercise on your off days. Speed is calculated as follows: speed = distance ÷ time. Knowing the units for distance and time is necessary to calculate the units for speed.

You must simplify 100/5.95 to determine the speed.

In order to do this, multiply by 6.

= 100 / 6

= 50 / 3

= 16.33 meters per second.

It is 16.3 meters per second when rounded up.

Thus, the Sarah's speed in Meters per Second was 16.3 m/s.

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Which of the following is NOT a condition necessary for fossilization to occur?

A. Rapid and permanent burial

B. Presence of heat

C. Lack of oxygen

D. Continued sediment accumulation

E. Absence of compression

Answers

I think the answer is b

Answer:

its b

Explanation:

just took the test

EASY POINTS IF YOU ANSWER THEM CORRECTLY!! the questions are easy and I don't feel like doing them but plz answer correctly before 3:00 PM est (will give brainliest to whoever answers all of them at once.)

Answers

There is no image try to upload ago

Uranus is which planet from the sun?

Sorry about the subject, there is no science subject so I chose randomly

Answers

Uranus is the 7th planet from the sun :))

☀️sun☀️
1. Mercury
2.Venus
3.Earth
4.Mars
5.Jupiter
6.Saturn
7.Uranus
8.Neptune
Hope it helps!!

How does caffeine reach the brain after someone drinks a cup of coffee or tea? In your answer, be sure to identify the systems involved.

Answers

Answer:

When we drink coffee, caffeine binds to our brain's adenosine receptors, preventing the chemical from binding with the receptors and making us tired. For those of us who regularly drink coffee in copious amounts, our brains develop more adenosine receptors, so it takes more coffee to keep us awake.

There, caffeine interacts with some neurotransmitters and promotes central nervous system's stimulation. ... Then, central nervous system's receptors send impulses to endocrine system to secrete some hormones that will affect person's behavior.

Knowing how food choices impact the function and productivity of cells, why do you think it is important to maintain a healthy diet? What can happen if someone continually eats junk food?

Answers

Answer:

healthy diet prevents and protects from diseases like obesity, heart disease, diabetes, cancer and stroke. constantly eating junk food can lead to obesity and chronic diseases like cardiovascular disease, type 2 diabetes, non-alcoholic fatty liver disease and some cancers.

Explanation:

Maintaining a healthy diet is important because food provides the energy and nutrients that cells need to function properly.

What is health?

"Health is a positive concept that focuses on both social and personal resources as well as physical abilities."

This means that health is a resource to assist an individual in carrying out their societal function, rather than an end in itself.

Junk food can have an impact on cell function and productivity in a variety of ways. A high-sugar diet, for example, can cause insulin resistance, which impairs cells' ability to absorb glucose and produce energy.

This can result in fatigue and reduced productivity. A high-fat diet can also have an effect on cellular function by increasing inflammation in the body, which can interfere with immune system function and increase the risk of chronic diseases.

Thus, maintaining a healthy diet is important for supporting cellular function and promoting overall health and well-being.

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3a.Select True if the statement is true; select False if the statement is false.

The change in temperature from January to February is the same pattern in both graphs.
True
False

There is more precipitation in April than in May in both graphs.
True
False

There was more precipitation in 1981–2010 compared to 1901–1930.
True
False

January, July, and December temperatures were higher in 1981–2010 than in 1901–1930.
True
False

You don't need so many years of data to show climate change; 5 years is enough.
True
False
3b.Do these data support climate change?


Yes, because the climate has changed in New York

No, because these data include only one city

Yes, because the temperature has increased over time

No, because the changes are not very large

Answers

I think False is the answer
I’m not sure but I think maybe false don’t count me on that I remember doing this before I just can’t remember sorry

EASY POINTS IF YOU ANSWER THEM CORRECTLY!! the questions are easy and I don't feel like doing them but plz answer correctly before 3:00 PM est (will give brainliest to whoever answers all of them at once.) Also ALL QS MUST BE ANSWERED from parts A-C

Answers

Answer:

What subject is this?

Explanation:

How is surface water naturally purified?
A:freezing water destroys impurities

B:evaporation leaves impurities behind

C:sediments precipitate out

D:soil filters the water

Answers

the correct answer is D.

A is wrong because it does not destroy molecules , they cannot be destroyed.

B is wrong because there can still be impurities from the clouds

C is wrong because sediments cannot be precipitated , only water can

The surface water is naturally purified by soils that filters the water. The correct option option is D.

What is soil water filtration?

Soil not only captures water, but it also filters it. Physical, chemical, and biological processes clean the water that flows into and through soil.

When pollutants carried by water become trapped in the small pores of the soil, they are physically cleaned.

Water is cleaned by physical, chemical, and biological processes as it passes through soil.

In addition to its physical filtration capacity, soil contains important biota that helps transform and decompose certain chemicals and other contaminants from soil, thereby aiding in the removal of these contaminants from water.

Groundwater is typically clean and safe to drink. Groundwater is usually free of microorganisms that cause disease because the soil on top acts as a filter.

Thus, the correct option is D.

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How do cells get energy from glucose? How do they use that energy?

Answers

Answer:

Image result for How do cells get energy from glucose?

Through the process of cellular respiration, the energy in food is converted into energy that can be used by the body's cells. During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP.

Explanation:

Using the dichotomous key, Which kingdom classification of the organism is described above?

A.
Fungi

B.
Eubacteria

C.
Protista

D.
Animalia

Answers

Answer:

Fungi

Explanation:

It’s fungi I did this unit last year

Name a domestic animal a peregrine falcon might be competing with by eating pigeons.

Answers

Answer:

Their typical prey items include shorebirds, ducks, grebes, gulls, pigeons, and songbirds. Peregrine falcons also eat bats, and they occasionally steal prey—including fish and rodents—from other raptors. Falcons nest on cliffs up to 1,300 feet high and sometimes higher.Explanation:

Answer:

no other animal

Explanation:

PLS HELP! I need help with this question

Answers

The heart pumps blood
B. The heart pumps blood in the body.

Which are characteristics of flukes? Check all that apply. They are free living. They are a type of flatworm. They reproduce sexually. They have eyespots. They are segmented.​

Answers

they are a flat worm
they reproduce sexually
they have eyespots

Answer:

cad

Explanation:

The pedigree below shows the inheritance pattern of hitchhiker’s thumb in a multigenerational family. How many people in this family have hitchhiker's thumb? *

Answers

2
Jack and Jim because it says the colored one s have it and they’re the only ones
2 since it shows that the colored ones have it. (Jack and Jim)

Which example is NOT an organism?

Question 1 options:

lung


mold


human


bacteria

Question 2 (3 points)
All living things are made of ______.

Question 2 options:

multicellular


organisms


cells


tissues

Question 3 (3 points)
To function on their own, what must unicellular organisms do?

Question 3 options:

make tissues


work with other cells


do all jobs for survival


perform a specialized task

Question 4 (3 points)
Which type of organism is ale to cause an infection or contagious disease?

Question 4 options:

animal


plant


bacteria


rose

Question 5 (3 points)
A fish laying hundreds of eggs is an example of _________.

Question 5 options:

maintaining structure


all of the answers are correct


obtaining energy


producing offspring

Question 6 (3 points)
What do we call the branch of science for classification of organisms?

Question 6 options:

Taxonomy


Chemistry


Physics


Biology

Question 7 (3 points)
What is an example of "maintaining structure"?

Question 7 options:

a cell dividing


eating an apple


catching a fish


healing a broken arm

Question 8 (3 points)
All successful organisms must be able to do what three things?

Question 8 options:

obtain energy, produce offspring, eat


obtain energy, eat, play video games


obtain energy, produce offspring, maintain their structure


maintain their structure, eat, build a home

Question 9 (3 points)
Which example is NOT a basic need of all organisms?

Question 9 options:

soil


appropriate enviornment


water


food

Question 10 (3 points)
What do all living things need?

Question 10 options:

energy, water, sunshine, and protection


water, parents, a place to live, and air


oxygen, an outer covering, parents, vitamins


food, water, air, and a place to live

Answers

Answer:

1: Mold 2: Cells 3: do all jobs 4: bacteria 5: producing offspring 6: Taxonomy 7: Healing a broken arm 8:obtain energy, produce offspring, maintain their structure 9: soil (I think) 10: food, water, air, and a place to live

Answer:

1. lung.

2. cells.

3. do all jobs for survival.

4. bacteria.

5. producing offspring.

6. Taxonomy.

7. a cell dividing.  

8. obtain energy, produce offspring, and maintain their structure.

9. soil.

10. food, water, air, and a place to live.

Explanation:

1.  all of the other options are organisms, while a lung is an organ.

2. All living things are made of cells

3. All unicellular organisms must be able to perform all the functions necessary for life. Meaning do all the jobs needed for survival.

4. Bacteria is the organism listed that is able to cause an infection or contagious disease.

5. A fish laying hundreds of eggs is an example of producing offspring. While it could also be an example of maintaining structure, a fish cannot obtain energy by laying eggs. So, the best answer is producing offspring.

6. Taxonomy's definition is the branch of science concerned with classification, especially of organisms; systematics.

7. a cell dividing is maintaining structure. After growth, cell division by mitosis allows for continual construction and repair of the organism. The primary concern of cell division is the maintenance of the original cell's genome. So, this is the best option for the question.

8. The second option is wrong, because not every organism plays video games. The 4th option is wrong, because not every organism builds their own home. And finally, the first option is incorrect, because plants do not physically eat they obtain their energy through photosynthesis. So, the correct option is the 3rd one.

9. Soil is not needed for all living organisms, but the other options listed are necessary.

10. the second and third option are incorrect, because not every living thing needs a parent. The first option is incorrect, because not every living thing needs sunshine and it does not list the other necessary components. So, the correct answer is the last option. And a place to live can also mean an appropriate environment.

The two main phases of the cell cycle are the cytokinetic phase and interphase. True or False

Answers

Answer:

i would say false - interphase and mitosis - but it could also be true sorry not to helpful

Explanation:

The two main phases of the cell cycle should not be the cytokinetic phase and interphase. Hence, the given statement is false.

Two main phases of the cell cycle:

The cell cycle does contain two important phases:

Interphase: In this the cell should be grown and DNA should be replicated.Mitotic phase: Cell should be split after mitosis which we called as the cytokinetic at which two daughter cells should be created.

Learn more about cell here: https://brainly.com/question/17599295

Fill in the blank.

_____ _____ curvy wavy ___ ___ lil waist!

-Megan Thee Stallion

Answers

Body crazy big titties

Answer:

body crazy big titties

Explanation:

i know the songwho doesn't

How many and what types of chromosomes are found in every one of your cells?

Answers

There are 23 chromosomes in a cell but I’m not sure what types they are

The Punnett square below shows a cross between 2 pink flowers. What is a percentage that a pink flower will be produced? *

Answers

Answer:

50%

Explanation:

rr, rw, rw, ww

What two human systems deal with allergies?

Answers

One is immune system. ‍‍‍‍

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