The blood in veins is


d. traveling to the heart.

b. moving in single file.

a. leaving the lungs.

c. carrying oxygen.

Answers

Answer 1

Answer:

D.  Traveling to the heart

Explanation:

The arteries carry oxygen and nutrients away from your heart, to your body's tissues. The veins take deoxygenated blood from the tissues and back to the heart.


Related Questions

Please help, any unnecessary answers will be reported. Thanks :)

Answers

Answer :it contains more than one cell

What can easily pass through the cell membrane?
What cannot pass through the cell membrane?
In passive transport, molecules, move ______the concentration gradient.

Answers

Answer:

i dont rlly get what ur asking but basically gasses diffues across the cell membrane from high conc to low concentration.

i dont know what passive transport is but active transport goes against the concentration gradient so im guessing passive is the opposite and goes with the conc gradient

Explanation:

2. What is plate tectonics?
a. The joining of the Earth’s plates into one plate
b. Movement of the Earth’s plates on the mantle
c. The ring of volcanoes around the Pacific Ocean
d. The way scientists measure earthquakes

Answers

Answer:

Suppose we add up alternate Fibonacci numbers, Fn-1 + Fn+1; that is, what do ... L(1)=1 and L(3)= 4 so their sum is 5 whereas F(2)=1; L(2)=3 and L(4)= 7 so their ... What is the relationship between F(n-2), and F(n+2)? You should be able to find a ... Fib(N); K (an EVEN number!), Lucas(K) and Fib(K) in each expression like ...

Explanation:

Which statement describes the relationship between bond strength and the
melting and boiling points of a substance?
A. As the force between the particles increases, the melting and
boiling points also increase.
B. As the force between the particles increases, the melting point
increases and the boiling point decreases.
C. As the force between the particies increases, the melting point
decreases and the boiling point increases
D. As the force between the particles increases, the melting and
boiling points decrease.

Answers

Answer:

D

Explanation:

hope this helps:))))))))))

What percentage of the moon as seen from Earth is illuminated during the third quarter phase?

Answers

Answer:

50% of the moon is illuminated during a third quarter phase

Answer:

50% I hope this answers question

What system is interacting with the digestive system to cause perstalsis?​

Answers

Answer:

The process of peristalsis is controlled by the medulla oblongata. Esophageal peristalsis is typically assessed by performing an esophageal motility study.

Explanation:

3 Calculate the acceleration of a car that went from zero to 60 m/s in 2.4 seconds Include units.​

Answers

Answer:

25m/s^2

Explanation:

acceleration= change in velocity/time

change in velocity is 60 (60-0)

Answer:

The answer to that question is...well...I have no idea .-. sorry.

Explanation:


Which model represents a possible chemical reaction

Answers

Answer: A I think

Explanation: I'am really sorry if i'am wrong

What process forms the Mid-Atlantic Ridge?

A. The seafloor is sinking in the middle of the Atlantic Ocean.

B. One tectonic plate moves under another one.

C. Melted rock from Earth's mantle rises between two tectonic
plates.

D. As melted rock falls, it cools and forms new rock.

Answers

Answer:C. melted rock from earths mantle rises between two tectonic plates

Explanation: got it right on ap3x

The answer is C!

(C) Melted rock from earth's mantle rises between two tectonic plates.

3. What is the scientific term for a group of interacting individuals of the same type, living in the same area at the same time?

Answers

Answer: The scientific name is called POPULATION.

Explanation:

In basic ecological studies, POPULATION is defined as a group of interacting individual of the same type or species, living in the same area or habitat and at the same time.

Furthermore, to study a population of organisms, the different characteristics seen include:

--> Population size: This is important as it affects the survival of a given species in a habitat. A small population may be easily wiped out by events such a fire but a large population stands a better chance of survival.

--> Population frequency: This is simply how often the species occurs at different sites in a habitat.

--> Population density: this is the average number of individuals of a species per unit area of the habitat.

--> Percentage cover: This is the area of ground occupied by a given species in its habitat.

--> Distribution: This is the way in which individuals of a particular population are arranged in a habitat. They may be clumped, evenly spaced or randomly spaced.

i’ll mark brainliest


1. Define celular respiration

2.What types of organisms use cellular respiration?

3 In which cell organele does most of aerobic celular respiration occur?

4.What are the reactants of aerobic celular respiration?

5.What are the end-products of aerobic cellular respiration?

6. What is the chemical equation for aerobic cellular respiration? How does it relate to the
chemical equation for photosynthesis ?

7. What are the 3 stages of aerobic cellular respiration? Where in the cell does each stage
occur and how many molecules of ATP are generated for each stage? Which stage generates
the most amount of ATP?

8. What types of organisms/cels utilize anaerobic celular respiration?

9. What are the two types of anaerobic respiration?

10. What is fermentation?
What organisms utilize fermentation?

11. Where in the cell does
fermentation take place?

12. What are the end-products of fermentation?

13. How many ATP molecules are generated during fermentation?

14. What types of organisms/cells utilize lactic acid anaerobic respiration? How many molecules
of ATP are generated by lactic acid respiration?

Answers

1. Cellular respiration is a process where oxygen molecules are used to break down nutrients like sugar to generate adenosine triphosphate or ATP.

2. All living organisms (except for some bacteria/yeast) perform cellular respiration. But what types? Any, I guess.

3. Aerobic respiration occurs in the mitochondrial matrix of the cell.

4. Anaerobic respiration occurs in the fluid portion of the cytoplasm.

5. The products of aerobic cellular respiration are ATP (energy), plain water and carbon dioxide.

6. The chemical equation for aerobic cellular respiration is 6O₂ + C₆H₁₂₂O₆ = 6CO₂ + 6H₂O + ATP...

7. ...

Which of the following behaviors is an inherited trait in dogs?

Catching a ball in its mouth

Leading a blind person

Sitting on command

Barking when frightened

Answers

Barking when frightened
Explanation
The others require you to teach the dog how to do it but I dog doesn’t need teaching to bark it comes naturally
Barking, the other options are taught.

beak shape, camouflage, and webbed feet are all examples of which type of adaptation​

Answers

Answer:

beak shape: used to help an animal eat food like tearing apart food or either cracking nuts.

Camouflage: the color or shape of an animals body helps it blend into its envierment.

weebbed feet: help animal's propel themselves through the water with ease. This can help the animal swim faster to

catch prey or escape a predator. Also, if an animal has to swim long distances,

webbed feet can help it save energy so it can swim farther.

Explanation:

Hope this helps

What is the role of oxygen in cellular respiration?

It provides electrons for the electron transport chain.
It combines with carbon monoxide to form carbon dioxide.
It is needed for the production of light and heat.
It is the final electron acceptor for the electron transport chain.

Answers

Answer:

it combines with carbon monoxide to carbon dioxide

30 POINTS AND BRAINLIEST!
To measure a population’s baseline genetic state, it must have _____________ to be in Hardy-Weinberg equilibrium.

A) Gene Flow

B) Random Mating

C) Selection

D) Mutations

Answers

Answer:

Random mating

hope it helps!

There are five basic Hardy-Weinberg assumptions: no mutation, random mating, no gene flow, infinite population size, and no selection. If the assumptions are not met for a gene, the population may evolve for that gene (the gene's allele frequencies may change).

To measure a population’s baseline genetic state, it must have random mating to be in Hardy-Weinberg equilibrium (Option B).

The Hardy-Weinberg principle state that the genetic variation in a population will remain constant across generations in the absence of different evolutionary forces.

The Hardy-Weinberg assumptions include random mating, no mutation, no gene flow, infinite population size, and absence of selection.

In consequence, random mating acts to prevent any change in the allele frequencies.

In conclusion, to measure a population’s baseline genetic state, it must have random mating to be in Hardy-Weinberg equilibrium (Option B).

Learn more in:

https://brainly.com/question/8667324

how are adaptation and variation similar?

Answers

Answer:

Adaptations are physical or behavioral traits that make an organism better suited to its environment. Heritable variation comes from random mutations. Random mutations are the initial cause of new heritable traits. For example, a rabbit can't choose to have a different fur color.

Does a liquid or gas have more freedom of movement.

Answers

Answer:

gas moves more freely because it has loosely arranged molecules

Explanation:

what is the fear of feaces​

Answers

Answer:

coprophobia

Explanation:

(=^w^=) woof

Name some harmful substances found in cigarette smoke. How do these
substances affect the respiratory and the circulatory systems?​

Answers

There are more than 7,000 harmful chemicals in tobacco smoke, at least 250 are known to be harmful. Some of these chemicals are:

Nicotine
Formaldehyde
Lead
Arsenic
Ammonia
Radioactive elements such as Polonium-210
Benzene

How some of those chemicals affect the body:

Nicotine is highly addictive and can cause an increase in blood pressure, heart rate, flow of blood to the heart and a narrowing of the arteries (vessels that carry blood).

Symptoms for formaldehyde are watery eyes; burning sensations in the eyes, nose, and throat; coughing; wheezing; nausea; and skin irritation

High levels of lead may cause anemia, weakness, and kidney and brain damage. Very high lead exposure can cause death.

Arsenic poisoning occurs over a brief period of time, symptoms may include vomiting, abdominal pain, encephalopathy, and watery diarrhea that contains blood. Long-term exposure can result in thickening of the skin, darker skin, abdominal pain, diarrhea, heart disease, numbness, and cancer.

High concentrations of ammonia in air causes immediate burning of the eyes, nose, throat and respiratory tract and can result in blindness, lung damage or death.

Tobacco smoke contains many chemicals that are harmful to both smokers and nonsmokers.


Acetaldehyde.


Aromatic amines.


Arsenic.

Benzene.


Beryllium (a toxic metal)


1,3–Butadiene (a hazardous gas)


Cadmium (a toxic metal)


Chromium (a metallic element)



Una persona sana necesita 1500 cal diarias para mantener su peso y su actividad rítmica normal ¿Cuántos J se obtendrá en 18,5 horas?

Answers

Answer:

4838J se requieren en 18.5 horas

Explanation:

Para resolver esta pregunta debemos, primero, hallar la cantidad de calorías necesarias para 18.5h (Ya sabemos que para 24 horas se necesitan 1500 calorías). Después, este resultado debemos convertirlo a Joules (1cal = 4.184J):

Calorías en 18.5h

18.5h * (1500cal / 24h) = 1156.25cal son requeridas en 18.5 horas

Joules requeridos:

1156.25cal * (4.184J / 1cal) =

4838J se requieren en 18.5 horas

I need help ...please seriously

Answers

Answer:

I think the answer is B

Explanation:

What is a scientific theory? The sentences above help to describe a scientific theory. One sentence is not quite

accurate though. Choose the sentence that needs to be modified and make the necessary modification so it may be

included in the description of a theory.

A)

D. A scientific theory has a simple basis: an experiment done to test a

hypothesis.

B)

C. Theories are descriptions, often mathematical descriptions of natural

phenomenon;

A. A scientific theory is based on a scientific investigation that supports a

hypothesis.

D)

B. When new information does not support a scientific theory, the theory

may be revised or sometimes rejected.

Answers

Answer:

Original sentence: When new information does not support a scientific theory, the theory  may be revised or sometimes rejected.  

New changed sentence: When the results of the experiment do not support a hypothesis, the hypothesis must be revised or rejected to state a new scientific theory.

Explanation:

The scientific theory is a conceptual framework used to explain facts or phenomena and to make predictions.

The theory is fundamental to science because it allows scientists to organize and understand observations.

The construction of a theory begins with a hypothesis. The scientist believes that a phenomenon occurs in a certain way, so he/she performs observations under the scientific method to prove that his/her hypothesis is valid or not valid. The systematization of the observations and the empirical data collected might derive from a scientific theory that explains the analyzed phenomenon.

A scientific theory is a knowledge that has been contrasted in several ways.

How are the ear and the eye alike? How are they different?

Answers

Answer:

SAME They are both senses/ DIFFRENT

and a ear can hear and eyes can see

Explanation:

Answer: hope this info help

Explanation: Eye vs Ear - What's the difference? is that eye is an organ through which animals see or eye can be a brood while ear is (countable) the organ of hearing, consisting of the pinna, auditory canal, eardrum, malleus, incus, stapes and cochlea or ear can be (countable) the fruiting body of a grain plant.

A science class is doing an experiment on how light affects the growth of plants. One set of plants is placed under a special light, a second set
of plants is placed in the dark. A third set of plants is left under normal room lights. The class measures and charts each plant's growth for a
week.
In this experiment, the third set of plants that was placed under normal room lights would be identified as the

Answers

Answer:

control group

Explanation:

A can of antifreeze spills near a clump of Dryopteris dilatata, a type of fern. The chemical seeps into the ground, endangering the plant's roots. The plant roots grow as far away from the chemical as possible to absorb only fresh water and minerals.
During this process, the roots primarily work in conjunction with which system? a) The immune system to defend against the toxic chemicals
b) The vascular system to reduce the absorption and transport of toxic chemicals
c) The reproductive system to make more root cells
d) The digestive system to create enzymes that break down the toxic chemicals​

Answers

Answer:D

Explanation:

I got it right on my test

Dryopteris dilatata is in family Dryopteridaceae. The movement of plant away from spill the roots primarily work in conjunction with vascular system to reduce the absorption and transport of toxic chemicals.

What is Dryopteris dilatata?

Dryopteris dilatata is a fern mainly located in deciduous or semi-evergreen family, native of Europe.

It can be grown in most cool, moist and light shaded areas. It is also called as broad buckler-fern.

As to avoid antifreeze spills, the plant roots grow far away from the area of spill. During this process roots primarily work with vascular system to reduce absorption and transport of toxic chemicals.

Thus, the correct option is b.

For more information regarding ferns, visit:

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The predicted values for the four phenotypes form a ratio. The simulated values match this predicted ratio.

Answers

Answer: 9:3:3:1 and approximately

Explanation: just did it

Answer: 9:3:3:1 and approximately

Explanation: edge 2022

Which is an example of genetic diversity? PLS HELP temperate rain forest and a tropical rain forest bees, jack rabbits, diamondback rattlesnakes bacteria, garter snakes, tigers variations in a flock of starlings

Answers

Answer:

temperate rain forest and a tropical rain forest bees.

Explanation:

The temperate rain forest and a tropical rain forest bees is the example of genetic diversity because the same organisms has different features which allows them to live in different climatic conditions due to their variation in genetics. The environment of temperate rain forest is different from tropical rain forest so the bees specie that live in both environment are different from one another in their genetic makeup and which is an example of genetic diversity.

Oxytocin is a hormone that is released by the pituitary gland after a signal from the brain. The impacts of oxytocin release are shown here. The nervous, endocrine, and reproductive systems interact in a tightly controlled manner during the labor and delivery of a baby. Which of these statements describes why oxytocin is often administered by doctors to women who are scheduled to deliver their baby on a particular due date?

Answers

Answer:

Its this one

Explanation:

The nervous, endocrine, and reproductive systems interact in a tightly controlled manner during the labor and delivery of a baby.

Answer: C) Oxytocin will start and increase the frequency of contractions, which promotes the delivery of the baby using a positive feedback loop.

Explanation:

Got it right on the test :)

PLEASE HELP ASAP In the past, California has had many droughts. Which part of the water cycle is not active when a drought is occurring?

precipitation

condensation

transpiration

evaporation
?

Answers

precipitation ( rain ) is not occurring

What four legged relative of snakes was used to compare genomes?

Answers

Answer:

Lizards / Reptiles

(Scientific four-legged snake is: Tetrapodophis)

Explanation:

couldn't add answer ^^ ignore comment :-)

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