Which system carries food and oxygen to cells? respiratory nervous circulatory digestive

Answers

Answer 1

Answer:

the answer is digestive, nervous is for feeling, respiratory breathing, circulatory is a cycle of blood throughout your body.

Answer 2

Answer:

Digestive

Explanation:


Related Questions

The complete breakdown of glucose through aerobic respiration in muscle cells
results in the net production of a maximum of
36 ATP molecules.
36 O2 molecules
36 ADP molecules
36 CO2 molecules.

Answers

Answer:

36 ATP molecules

Explanation:

Cellular respiration is a metabolic process undergone by all living cells. It is the way cells obtain energy by breaking down food molecules to yield energy in form of ATP needed for their life processes. Cellular respiration can occur in the presence of oxygen (aerobic) or in the absence of oxygen (anaerobic).

Aerobic cellular respiration is that which occurs when oxygen is present in the cells. It consists of three main stages viz: Glycolysis, Kreb's cycle and Oxidative Phosphorylation (ETC). Glycolysis is the first stage of aerobic respiration involving the breakdown of glucose into pyruvate and a net gain of 2ATP molecules.

Kreb's cycle or TCA is the next stage of aerobic respiration involving the production of electron carriers (NADH and FADH2) and release of 2ATP molecules as well.

Electron transport chain (ETC), which is the last stage of aerobic respiration involves the most yield of ATP molecules. Electrons are passed from one molecule to another in this stage, with oxygen being the last electron acceptor. 32 ATP molecules is produced at this stage.

In totality, a net production of 2+2+32 = 36 ATP molecules is the maximum produced after aerobic respiration in a muscle cell.

Invasive species are one of the major threats to blodiversity. These species multiply quickly and compete with native species for food, sunlight,
space, and other resources. On the map, determine the area where native species will have limited resources available to them due to invasion.​

Answers

Answer:

Top Left

Explanation:

On the map, the top-left part of North America, which is the Canada part, has the most threats due to the invasive species, which are also threats to the native species as they can easily multiply and eat the native prey.

What is an invasive species?

Invasive species can outcompete native species for resources such as food, water, and habitat. This can lead to declines in native species populations, which can impact the entire ecosystem. Invasive species can alter the structure of ecosystems and disrupt natural processes. For example, some invasive plants can change the soil chemistry, while some invasive animals can alter the food web and cause changes in the behavior of native species. Invasive species can introduce new diseases to native populations, which can have devastating effects. For example, the introduced fungus that causes white-nose syndrome has killed millions of bats in North America.

Hence,   On the map, the top-left part of North America has the most threats due to the invasive species, which are also threats to the native species.

Learn more about the invasive species here.

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3.One advantage to being an ectotherm is that an ectotherm

Answers

Ectotherm can survive with a low calorie diet

What is the best definition of activation energy

Answers

Answer:

The term Activation Energy was introduced in 1889 by Svante Arrhenius, a Swedish scientist. It is defined as the least possible amount of energy (minimum) which is required to start a reaction or the amount of energy available in a chemical system for a reaction to take place.

Hope that helps :)))

What threat do rusty crayfish pose as an invasive species?
a.
Rusty crayfish are poisonous.
b.
They consume the food supply.
c.
They kill the native crayfish.
d.
They eat all the young fish.
e.
They clog the natural rivers.

Answers

Answer:

They kill the native crayfish

Explanation:

this is because they are more aggresive

Answer:

Option B

Explanation:

The answer is option B or "they consume the food supply ." Rusty crayfish are known as a invasive species because they are legal to buy, sell, and transport but putting them into public waters can have a negative impact on the waters. In this case Rusty crayfish will have a negative impact on a ocean or a lake because it destroys aquatic plant beds which some organisms use as homes, they also happen to be really aggressive eating animals so consuming the food supply for other animals is the main threat the rusty crayfish pose.

Hope this helps.

Question 4 of 10
2 Points
Which happens to a developing child first?
A. Teeth begin to form.
B. The heart begins beating.
C. Eyebrows appear.
D. The eyes are able to see.

Answers

Answer:

B

Explanation:

A child needs a beating heart to live, if not they cam't develop.

the heart begins beating, b

In this article the author explains what scientists are trying to find out. What are the scientists in the article trying to find out?
Question 2 options:

A .when sulfur first appeared in Earth’s early atmosphere


B .how the proportions of different sulfur isotopes change in the geologic record


C .how the ozone layer formed and the effects of its formation


D .when oxygen increased in Earth’s early atmosphere

Answers

Hi, did you forget to mention that this question is about the article "The Rise of Oxygen in the Earth's Atmosphere" by American Museum of Natural History

Answer:

D. when oxygen increased in Earth’s early atmosphere

Explanation:

Right at the beginning of the article we can find out what scientists are trying to discover. This is because the introduction of the article introduces us to Grant Young and Jay Kaufman, a university professor and a geologist, respectively, who are the main scientists in the study that seeks to discover and set firm dates for the increase in oxygen in the Earth's primitive atmosphere.

What percent of the offspring will be
pink, if we cross two pink tulips?
50 %
100%
25 %

Answers

The answer is 50% pink 25%Red 25%White

In the square. You can see that there are 2 RW(pink) 1 RR(red) and 1 WW(white)

New crust forms:
A. near a convergent boundary.
B. in an ocean trench.
C. where two plates pull apart from each other.
O D. at the lithosphere.
SUBMIT

Answers

C


When two plates are moving away from each other, we call this a divergent plate boundary. Along these boundaries, magma rises from deep within the Earth and erupts to form new crust on the lithosphere. Most divergent plate boundaries are underwater and form submarine mountain ranges called oceanic spreading ridges.

New crust forms where two plates pull apart from each other and the correct option is option C.

New crust forms at divergent boundaries, which are locations where two tectonic plates are moving away from each other. As the plates separate, magma from the underlying mantle rises to fill the gap created by the spreading plates.

This magma solidifies and forms new crust, adding to the existing plates. Divergent boundaries are typically found along mid-ocean ridges or continental rift zones.

Convergent boundaries (option A) are locations where two plates collide, often resulting in the subduction of one plate beneath the other. Ocean trenches (option B) are formed at subduction zones, where one tectonic plate is forced beneath another.

The lithosphere (option D) is the rigid outer layer of the Earth, including the crust and uppermost part of the mantle, but it is not the specific location where new crust forms.

Thus, the ideal selection is option C.

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In living things, what is the source of the Carbon 14 that is used in radiocarbon dating?

Answers

In living things, the source of Carbon-14 that is used in radiocarbon dating would be Carbon Dioxide in the atmosphere.

Carbon dioxide in atmosphere

hey please help

is a solar eclipse local or global?
is a lunar eclipse local of global?​

Answers

Answer:

A solar eclipse is  Local

A lunar eclipse is global

Explanation:

Which of the answers indicate that you’re thinking like a scientist

Answers

Answer:

yes

Explanation:

During photosynthesis, plants take in carbon dioxide, water, and energy from the sun and produce carbohydrates and oxygen. Which of the following statements best explains how plants follow the law of conservation of mass during photosynthesis?

The amount of each element in the reactants equals the amount of each element in the products.

The number of carbon dioxide molecules taken in exactly equals the number of carbohydrate molecules produced.

The plant uses the carbon dioxide gas, liquid water, and energy to produce a solid carbohydrate.

The plants mass does not increase or decrease as a result of photosynthesis.

Answers

The amount of each element in the reactants equals the amount of each element in the products is the correct one. Could u Mark me brainliest and thnx

The statement that best explains how plants follow the law of conservation of mass is the amount of each element in the reactants equals the amount of each element in the products is the correct one. The correct option is A.

What is the conservation of mass?

According to the rule of conservation of mass, mass is neither generated nor destroyed during a chemical process.

Because mass is conserved (kept the same) in chemical processes, this sameness of mass in reactants and products is known as the Law of Conservation of Matter. Photosynthesis, which is a chemical process that occurs in plants, is one of the most crucial for life as we know it to exist.

Therefore, the correct option is A. The amount of each element in the reactants equals the amount of each element in the products.

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Changes to the global climate could include
a changes to temperature
b. changes to pressure
C. changes to precipitation
d. all of the above
Please select the best answer from the choices provided

Answers

Answer:

D

Explanation:

All of the above are parts of the climate that could be subject to change.

Answer:

B

Explanation:

Manatees are an endangered mammal species that live in bodies of water in Florida. Manatees migrate from summer habitats to winter habitats and look for safe areas to feed and raise their young. People in boats need to give space to manatees to protect them from harm. What might conservationists do to increase manatee populations?

A. Increase the number of boats
B. increase the local fish population
C. increase the oxygen available in the water
D. increase the amount of protected habitat available

Answers

Answer: Im pretty sure it´s D.

Explanation: Manatees like to raise and feed their young in safe places so if we increase the amount of protected areas their population is more likely to increase.

Hope this helps!

people spray pesticides on crops to kill insects that eat and destroy crops. however, these insects are becoming resistant to the pesticides. Explain how this could happen.

if a person takes antibiotics, the resistant bacteria will die. if this process continues,most of the bacteria population will have the trait for antibiotic resistance. if antibiotics are taken rarely, the population will not have time to adapt, and the bacteria will die. the more antibiotics are taken, the more chance the bacteria have to adapt and develop resistance

Answers

Since the bugs are being sprayed by the pesticides so often they start to build resistance just like how people build tolerance to alcohol. The more often the bugs get sprayed with pesticides the more they can tolerate and adapt to the pesticides.

Describe the similarities and differences of a community and a population.



PLZ HELP I ONLY HAVE ONE MORE DAY! I WILL MARK BRAINLIEST

Answers

Answer:

community: collection of populations.                                                                            population: one area specified specie.

Explanation:

let's suppose you have a home garden where you have dogs birds crops trees and each one is a different specie.If you encounter on individual level then it's specie but on collective level- community-perhaps it's easy to say and give the example of pound community and field of wheat -population-.

Which structure is at work when the body deals with reflex actions?
meninges
brain stem
vertebral column
Ospinal cord

Answers

Answer:

spinal cord

Explanation:

Reflex actions are the involuntary action of the body in response to a signal or stimulus. The reflex action of body is controlled by spinal cord.

Reflex arc acts as a neural pathways that transmit impulse to the brain via spinal cord. Sensory neurons pass through synapse in the spinal cord which activate spinal motor neuron to act immediately without any delay.

Immediate taking off hand from hot oven is an example of reflex action, which is regulated by spinal cord.  

Hence, the correct option is spinal cord.

 

Answer: Meninges, brain stem, vertebral column, spinal cord.

Explanation:

A reflex action can be defined as the involuntary and instantaneous movement of the body towards the stimulus. The reflex action is generated as a response in the neural pathway called reflex arcs that includes the meninges of the brain, brain stem, spinal cord and vertebral column that sends electrical impulses to the muscles, and other parts of the body to give response towards stimulus.

Which of the following best describes how energy is transferred in a food web?
A. A All energy is transferred to each level of a food web.
B. B Energy flows from producers to one or more levels of consumers.
C. C Consumers transfer their energy to producers.
D. D Decomposers get their energy directly from the sun.

Answers

Answer:

B.

Explanation:

Energy flows from producers to one or more levels of consumers. Think of it this way:

A banana tree grows in the forest.

A monkey eats the bananas off of the tree, it now consumes the energy provided by the banana.

(whatever animal kills monkeys) kills the money for food, they have now consumed the energy of the monkey, as well as the banana the monkey has eaten previously.

The web continues, and energy continues to be distributed to each level of consumer, all starting with a single producer.

which of these is is the greatest density silver copper aluminium or gold

Answers

Answer:

Gold.

Explanation:

Gold has a density of 19.32 grams per cubic centimeter, while the others have between 2 and 11. Hope this helps!

Ralph wanted to breed a pea plant that produced only purple flowers. He continued to breed purple-flower producing pea plants together over six generations. The results of Ralph's selective breeding are shown above. What did the selective breeding do to the population of pea plants?
A.
increased its genetic diversity
B.
decreased its genetic diversity
C.
caused a new species of pea plant to form
D.
caused a pea plant to exhibit a new characteristic

Answers

Answer:

B. decreased its genetic diversity

Explanation:

if the number of chances the white flower decreases, and there are more purple chances, then there is less genetic diversity.

Answer:

It's B

Explanation:

please help brainliest

Answers

Answer:

I would say C

Explanation:

It makes the most sense to me

Plz mark Brainliest

Answer:

Answer is most likely B.

Explanation:

I say so because nectar is the one with the highest water content among all the options. It contains 80 – 90% water.

Describe what the completeness or integrity of an ecosystem biodiversity is used to measure

Answers

Answer:

Disruptions to any physical or biological component of an ecosystem can lead to shifts in all its populations. Biodiversity describes the variety of species found in Earth`s terrestrial and oceanic ecosystems. The completeness or integrity of an ecosystem`s biodiversity is often used as a measure of its health.

Explanation: Disruptions can really mess with any physical or biological component of a ecosystem then that ecosystem leads to shifts in all populations. I hope this answer helps you!

The completeness or integrity of an ecosystem biodiversity is used to measure its health.

Biodiversity refers to the different types of organisms present in an

ecosystem. A healthy ecosystem is one which has a high degree of

biodiversity present in it.

High biodiversity leads to a high stability and productive rates as a result of

the high resources present. An unhealthy ecosystem has low integrity or

completeness in its biodiversity .This is why the integrity of an ecosystem

helps to measure its health.

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Each up-and-down column of elements on the periodic table.

A.Periodic Law

B.Group

C.Period

D.color of the chemical

Answers

Answer:

Groups are the vertical columns

Explanation:

Periodic law states that when elements are listed in order of their atomic masses they automatically fall into similar groups.

A period is the horizontal organization.

Answer D is irrelevant.

So the answer is B! Group!

Hope this helped!!!!

Organisms rely on the sugar molecules produced by photosynthesis in order to carry out their life processes. Which of the following organic molecules can be formed when the chemical elements in sugar interact with other elements?

A.
amino acids
B.
lipids
C.
nucleic acids
D.
all of these

Answers

Answer:

D. all of them

Explanation:

:D

<3

All of them that tru

Which of the following does not create its own light or bioluminescence?
jellyfish
fireflies
fungi
spiders

Answers

Answer:

Spiders

Explanation:

There are many bio luminescent organisms, or organisms that make their own light.

Many types of jellyfish create their own light, usually to scare away predators. Fireflies also create bioluminescence, creating their well known light that gives them their name. There are some species of bioluminescent fungi. They do this to deter predators and to attract insects that can aid in the process of dispersing spores.

The only organism listed that cannot create its own light is a spider.

Definitely spiders.

Umm I need some help please by 4pm

Answers

Answer: the two top ones go with supporting evolution

   and the rest goes with contridicts evolution

Explanation: hope that helped

Which is a density-independent factor?
food
water
drought
habitat

Answers

The answer possibly could be a drought but I’m not 100%

Answer:

habitat

Explanation:

Density-independent factors, such as weather and climate, exert their influences on population size regardless of the population's density. In contrast, the effects of density-dependent factors intensify as the population increases in size.

What moon phases are present in the model?

a. New Moon and Full Moon
b. 1st Quarter and 3rd Quarter
c. Waning Cresent and Waxing Cresent
d. Waning Gibbous and Waxing Gibbous

Answers

Answer: c

Explanation:

Answer Is A. The Full moon And The New Moon

Which trophic level contains the organisms that are the source of all chemical energy used in an ecosystem?

parasites

herbivores
producers
decomposers

Answers

Herbivores because the other options don’t make sense with the question asked rate me Brainly

Answer:

b

Explanation:

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The process of completing the square is done for f(x) = x^2 +10x + 21 to be changed into a vertex form..which step shows Three steps toward this process? why did you pick your answer ? If you want to produce 11 moles of NH3, how much H2 do you need? Maintaining fish populations preserves the ocean as a resource and isfundamental to protecting biodiversity." 2) The sum of two numbers is 100. Their difference is 4. What are the two numbers? All are examples of cross-contamination except 7 15 can be written as _____.5(7 + 10)10(7 + 5)7(10 + 5) What is the difference between a horizontal merger and a vertical merger? A horizontal merger is a merger A. between firms of different sizes, while a vertical merger is a merger between firms of the same size. B. that would increase efficiency, while a vertical merger is a merger that would decrease efficiency. C. between firms in the same industry, while a vertical merger is a merger between firms at different stages of the production of a good. D. between firms that have market power, while a vertical merger is a merger between firms that are price takers. E. between firms in different industries, while a vertical merger is a merger between firms in the same industry. Which type of merger is more likely to increase the market power of a newly merged firm? __________ mergers are more likely to increase market power. A)50ft2B)104ft2C)54ft2D)208ft2 Read the excerpt below and answer the question.STAGE MANAGER:Well. Now we're ready to get on with the wedding.There are a lot of things to be said about a wedding; there are a lot of thoughts that go on during awedding. We can't get them all into one wedding, naturally, and especially not into a wedding at Grover'sCorners, where they're awfully plain and short.What is significant about the language in this excerpt from Our Town? Select all that apply.It lacks specificityIt creates an enthusiastic tone.It makes weddings seem dull and uninspiring,It encourages the audience to make inferences about weddings. PLs help me with this it is really quick!! What has been an important consequence of thedevelopment of air conditioning, highways,television, and less expensive air travel? Which process is related to ridge push? A. Earthquakes B. Subduction C. Seafloor spreading D. Mantle convection Since the moon orbits the earth approximately every 27 days, there is a lunar eclipse approximately every 27 days. True False Solve by substitutiony=2x-3-x-8y=7 A ladder, leaning against a wall, makes an angle of 20 with the ground. The foot of the ladder is 3 m from the wall. How long is the ladder?(please show work) Correct error of collective nouns 1 I pride of bees was buzzing around a flower pot 2 I saw a bunch of sheep grazing in a farm 3 I have a small troupe of book in my home When it is operating properly, a chemical plant has a daily production rate that is normally distributed with a mean of 885 tons/day and a standard deviation of 42 tons/day. During an analysis of period, the output is measured with random sampling on 60 consecutive days, and the mean output is found to be x=875 tons/day. The manager claims that at least 95 % probability that the plant is operating properly. Is he right? Justify your answer! Solve: 43x 4 = 5 + x What were the ways two groups of women came together to protest British taxes? In Tim's garden, the flowers areonly red, white, yellow or blue.The chart shows the number ofred, white and yellow flowers.The total number of flowers is 301210a) How many blue flowers are there?6b) Write down the mode.(ive answered A anyone know b?)