Which of the following is a difference between arteries and viens?
arteries carry blood and veins carry only plasma
arteries do not have valves and veins do have valves
arteries are thin and veins are thick
arteries carry blood back to the heart and veins carry blood to the heart

Answers

Answer 1
prob D i have no clue

Related Questions

Many desert mammals have developed a nocturnal lifestyle. This means that during the day they sleep underground in their burrows, and they come out to eat and play at night. What is a good reason for a desert fox to show this pattern of behavior?

Answers

Answer:

A good reason why a desert fox shows this pattern of behavior is to protect themselves from cold conditions since at nighttime, it gets very cold in the desert!

Explanation:

Nocturnal is a type of animal behaviour shown when the animals are active at night time and inactive at daytime. Desert fox shows this behaviour so that it can avoid the hot daytime of the desert.

What is nocturnal behaviour?

Nocturnal lifestyle is the behaviour adopted by animals that are active at night time and are inactive during the daytime. During the daytime, they rest in the cool burrows, holes and underground canals to prevent the loss of water and to protect themselves from the extremely hot environment.

The desert animals like desert foxes have adapted the nocturnal lifestyle to avoid the extreme heat during the daytime and sleep in their underground burrows. Instead, they come out during the night when it is cool in deserts to eat and play.

Nocturnal lifestyle is shown by the diurnal animals that rest and sleeps in the burrows, holes and cool places during the hot time of the day.

Therefore, the desert fox shows a nocturnal lifestyle.

Learn more about a nocturnal lifestyle here:

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A transcriptional repressor that controls the transcription of gene A is not normally active unless bound by an effector molecule X. In a certain cell, the domain of the repressor that binds to the silencer of gene A is mutated so that the repressor-X complex can no longer bind to its recognition site. With all other factors being the same, what effect do you predict on the transcription of gene A if X is increased in the cell and the cell is already expressing gene A

Answers

Answer:

Transcription of gene A is not affected

Explanation:

A transcriptional repressor is a DNA/RNA-binding protein that acts to suppress gene expression and/or protein synthesis by binding to target sequences. Moreover, a silencer is a DNA region that binds to particular transcriptional repressors in order to suppress gene expression. In this case, the transcriptional repressor is activated by binding to an effector molecule X (e.g., another protein). In consequence, and since the activated repressor-X complex is not more able to bind the silencer of gene A, it is expected that such complex will not be able to affect transcription of the target gene.

Aiden is having soup for lunch when the doorbell rings. He gets up from the
table, leaving his metal spoon in the bowl of hot soup. When he comes back a
few minutes later, the spoon is hot.
This is an example of ______________________

. I know this becaus

Answers

Answer:

23

Explanation:

Nice edge 40r0

A identificação é imprescindível em qualquer sistema de produção animal, porque:


A) permite apenas que o produtor identifique seus animais.

B) permite o controle do rebanho a detecção dos pontos críticos e favorece as tomadas de decisões nas propriedades. Independente do método de identificação adotado é importante o comprometimento dos profissionais envolvidos com a coleta e armazenagem dos dados.

C) permite identificar o animal doente.

D) permite escolher o melhor animal.​

Answers

the answer to this is C
Is it Spanish thank for helping 24

Muscles are named in a variety of ways; the muscles on the sides of the head are named according to their
a. size.
b. location.
c. action.
d. location of insertion.

Answers

Answer:

Muscles are named in a variety of ways; the muscles on the sides of the head are named according to their location.

Size always matters but when you not in the right location and not doing the right action, then the location of insertion isn’t where we thought it would be✌️

Epinephrine initiates a signal transduction pathway that involves the production of cyclic AMP (cAMP) and leads to the breakdown of glycogen to glucose, a major source of energy for cells. But glycogen breakdown is only part of the fight-or-flight response that epinephrine brings about; the overall effect on the body includes increased heart rate and alertness, as well as a burst of energy. Given that caffeine blocks the activity of cAMP phosphodiesterase, propose a mechanism by which caffeine ingestion leads to heightened alertness and sleeplessness.

Answers

Answer:

Epinephrine initiates a signal transduction pathway that involves the production of cyclic AMP (cAMP) and leads to the breakdown of glycogen to glucose, a major source of energy for cells. But glycogen breakdown is only part of the fight-or-flight response that epinephrine brings about; the overall effect on the body includes increased heart rate and alertness, as well as a burst of energy. Given that caffeine blocks the activity of cAMP phosphodiesterase, propose a mechanism by which caffeine ingestion leads to heightened alertness and sleeplessness.

Explanation:

Please answer the questions that have “type here”
Earth science

Answers

Answer:

#4 - the lower the pressure the higher the altitude

#12- Light from the Sun passes through the glass roof to heat plants and the ground inside the greenhouse. These objects then emit infrared radiation, which is absorbed in the glass roof. Thermal energy is trapped in the greenhouse, keeping the building warm.

#13 - acid rain

#14- 10 and 25

#15- clouds, weather, etc

Explanation:

I had to find and watch the video to fill out the ones you put "type here". Hope my answers help you. And pls give me a Brainliest. Thank you.

How could heart disease affect other organ systems?

Answers

you'll be getting less oxygen to the rest fo the body, this can cause shortness of breath, swelling in your legs, fluid build up and even kidney and liver damage

hope this helps!!

Some ocean plants, such as photosynthetic algae, benefit when dissolved CO2 levels in ocean water are elevated. Complete the
chemical equation by dragging and dropping components of the equation into the boxes that BEST explains how algae use CO2 for
photosynthesis

Answers

Answer:

CO2 + H2O ---SUNLIGHT--------> C6H12O6 + O2

Explanation:

In the process of photosynthesis, carbondioxide reacts with water molecules in the presence of sunlight forming glucose molecules and oxygen gas. The carbondioxide enters the plant body through small openings called stomata, these stomata opens when there is sunlight whereas water enters the plant body through roots from the soil and reaches to the leaves. In leaves both combine produces glucose which can be stored in different parts of the body and some oxygen is used by the plants in the process of respiration and extra is released through stomata.

Complete the passage to differentiate between longitudinal and transverse waves.

A longitudinal wave is a type of wave that transfers energy
to the direction of wave motion. A transverse wave, on the other hand, is a type of wave that transfers energy
to the direction of wave motion.

Answers

Answer:

transverse Waves transfer energy at right angle while longitudinal waves transfers energy parallel

3
Scientists discovered a new organism that thrives on the leaves of palm trees. The organism
is eukaryotic, unicellular, and reproduces through binary fission. It also makes its own food
through photosynthesis. This organism's characteristics most closely match the characteristics
of which Kingdom?
(2 points)

Answers

Answer:

Plant

Explanation:

The organism characteristics most closely match to characteristics of plant kingdom

AG CLASS NEED HELP ASAP
Which of the following refers to a plant that has been pruned and trimmed into a sculptural form?

topiary

hardscape

folly

bosquet

Answers

Answer:

I believe the ans is topiary.

Answer:

My Answer Is;

Topiary

Topiary is the horticultural practice of training perennial plants by clipping the foliage and twigs of trees, shrubs and subshrubs to develop and maintain clearly defined shapes, whether geometric or fanciful. The term also refers to plants which have been shaped in this way.

Explanation:

#CARRYONLEARNING

Why do you think some organisms have only one cell, but humans have about 100 trillion?

!PLEASE HELP!

Answers

Humans have loads of cells so they can reproduce so it doesn’t matter if a cell dies e.g. when you cut your skin it fixes itself. Organisms with 1 cell will easily die and probably not live very long unless they can breed.

Can someone help me with the order of the carbon cycle ?

Answers

Answer:

First what is it? Carbon cycle is, nature's way of reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again. Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms.

1.Carbon moves from the atmosphere to plants. In the atmosphere, carbon is attached to oxygen in a gas called carbon dioxide (CO2). Through the process of photosynthesis, carbon dioxide is pulled from the air to produce food made from carbon for plant growth.

2.Carbon moves from plants to animals. Through food chains, the carbon that is in plants moves to the animals that eat them. Animals that eat other animals get the carbon from their food too.

3.Carbon moves from plants and animals to soils. When plants and animals die, their bodies, wood and leaves decays bringing the carbon into the ground. Some is buried and will become fossil fuels in millions and millions of years.

4.Carbon moves from living things to the atmosphere. Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants need to get rid of carbon dioxide gas through a process called respiration.

5.Carbon moves from fossil fuels to the atmosphere when fuels are burned. When humans burn fossil fuels to power factories, power plants, cars and trucks, most of the carbon quickly enters the atmosphere as carbon dioxide gas. Each year, five and a half billion tons of carbon is released by burning fossil fuels. Of this massive amount, 3.3 billion tons stays in the atmosphere. Most of the remainder becomes dissolved in seawater.

6.Carbon moves from the atmosphere to the oceans. The oceans, and other bodies of water, absorb some carbon from the atmosphere. The carbon is dissolved into the water.

Explanation: This should help

1. Which of the following most accurately complete the statement below -
An increase in biodiversity result in
A. More competition for abiotic factors
B. Less competition for biotic factors
C. An increase in the sustainability of an ecosystem
D. A decrease in the sustainability of an ecosystem

Answers

Answer:

The correct answer is - C. An increase in the sustainability of an ecosystem.

Explanation:

Biodiversity is the variety of different biological species and populations on the earth or in an ecosystem. Biodiversity helps in maintaining health by providing food and other resources. Higher biodiversity healthier the earth.

Sustainability is the ability to maintain the ecological process and its structure and function in case of external stress for a longer time. The more sustainability of an ecosystem the healthier the ecosystem. The biodiversity of an ecosystem provides sustainability to the ecosystem. An increase in biodiversity will lead to a more sustainable ecosystem.

what is the greenhouse event primarily caused by​

Answers

Explanation:

Greenhouse effect, a warming of Earth's surface and troposphere (the lowest layer of the atmosphere) caused by the presence of water vapour , carbon dioxide, methane, and certain other gases in the air. Of those gases, known as greenhouse gases, water vapour has the largest effect.

someone pls help w this

Answers

Answer:

B.

Explanation:

Which of the following are shown in karyotypes?

a
sex chromosomes
b
homologous chromosomes
c
autosomes
d
all of the above

Answers

Answer:

Karyotypes describe the chromosome count of an organism and what these chromosomes look like under a light microscope. Attention is paid to their length, the position of the centromeres, banding pattern, any differences between the sex chromosomes, and any other physical characteristics.

Explanation:

As this karyotype displays, a diploid human cell contains 22 pairs of homologous chromosomes and 2 sex chromosomes. ... The maternal and paternal chromosomes in a homologous pair have the same genes at the same locus, but possibly different alleles.

I think the answer is D ( all of the above )

In guinea pigs, the short hair trait is dominant. If two heterozygous guinea pigs were crossed, what would be the phenotypes of the offspring? *
A. 100percent short hair
B. 75 percent short and 25 percent long.
C. 50percent short and 50 percent long
D. 25 percent short and 75 percent long​

Answers

Answer is B. Best way to check is make a square

state what action muscles can complete

Answers

Answer:

Flexion

Extension

Abduction

Addiction

Explanation:

hope it helps

PLZ HELP ASAP (BRAINLIEST)

The orbital radii of four planets in our solar system is shown in the following table.


Orbital Radii
Planet Orbital Radii (AU)
W 5.2
X 0.72
Y 0.37
Z 19.1


Which planets are likely to be inner planets?
W and X
X and Y
Y and Z
X and Z

Answers

Planet X
Explanation:
The orbital radii of planet X is the smallest which means that is closest to the sun. The distance to the star determines the temperature of the planet. Closer the planet, more likely it would have higher temperature. So planet X has highest temperature most likely.
In the solar system, there is exception, mercury is closest to sun but Venus which is the second planet from the sun has highest temperature. This is because mercury has no atmosphere and Venus has very thick atmosphere which traps the solar radiation and heats up.

Answer:

x and y

Explanation:

x and y have the smallest orbital radius so they are likely to be inner planets while w and z have bigger orbital radius so the probability of them being inner planets is low.

Hope this helps.

recall what microorganism are​

Answers

Answer:

very very .. tiny tiny tiny organisms

Answer:

a microscopic organism, especially a bacterium, virus, or fungus.

Explanation:

whoooooo is goo day 72819

Answers

Answer:

Hi how are you doing today Jasmine

Answer:

Thank you and have a good day.

Which of these is true for a fetus by the end of the first trimester of fetal
development?
A. Its weight is half what it will be at birth.
B. Its lungs are fully developed.
O C. Its placenta has served its purpose.
.
D. Its external sex organs have formed.

Answers

Answer:

the answer is A :)!!!!!!!!!

what is the geologic setting of the orr at Round Mountain​

Answers

Answer:

Round Mountain is an epithermal, low-sulphidation, volcanic-hosted, hot-springs deposit located along the margin of a buried caldera. The majority of the mineralisation at Round Mountain is contained within the tuffs, although drilling has encountered some ore in the underlying Palaeozoic basement.

Explanation:

please mark this answer as brainliest

4. How should the fossils in the sediment layers of Earth appear if species have evolved over time?
A. All of the layers should contain fossils of simple organisms.
B. All of the layers should contain fossils of complex organisms.
C. The lower layers should contain fossils of more complex organisms.
D. The upper layers should contain fossils of more complex organisms.

Answers

Answer:

D the upper layers

Explanation:

at first, lifeforms were simple. they got more complex for a variety of reasons, including to adapt to the changing earth. simple organisms will be lower down for that reason.

The lower layers should contain fossils of more complex organisms. So, the correct option is (C).

What are Fossils?

A fossil is defined as the preserved remains, imprint or trace of something that once lived from a previous geological era. Examples of fossils are bones, shells, exoskeletons, fossilized traces of animals or microbes, objects preserved in amber, hair, petrified wood, and DNA residues. The totality of fossils is known as the fossil record.

There are four main types of fossils which are formed in different way  are conducive to preserving different types of organisms. Fossils are mold fossils, cast fossils, trace fossils and true form fossils.

Fossil layers are fossils that formed in sedimentary rock that formed in layers by depositing and pressing sediments on top of each other.

Thus, the lower layers should contain fossils of more complex organisms. So, the correct option is (C).

Learn more about Fossils, here:

https://brainly.com/question/19486615

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A scientist was given some cells in a test tube .When she did karyotyping studies on these cells, she found that they each consisted of 23 chromosomes with only one sex chromosome in each. Half of these cells had one" X" chromosome in each of the cells and the other half had one"Y" chromosome in each of the cells. From this information, which would be a reasonable conclusion?
a.
These could be cells taken from any part of the human body
b.
These are all gametes
c.
There is no way to tell what type of cells they are.

Answers

Answer:

These could be cells taken from any part of the human body

Which of the following sources of noise pollution has the greatest likelihood of leading to hearing loss
for exposed individuals in an urban area?
Your answer:
car horns
conversation
pneumatic drills
trains passing by
O traffic on a residential street

Answers

Answer:

traffic on a residential street

Part of an important cellular process involving a DNA strand is modeled below.



What is the purpose of this cellular process?

Answers

Answer: Cellular respiration is the process by which cells in plants and animals break down sugar and turn it into energy, which is then used to perform work at the cellular level.

Explanation: In simpler words, it provides energy for the cell to do basic needs.

PLEASE HELP I WILL GIVE BRAINLIEST + Like + 5 stars. How are cell walls useful for plants but not animals?

Answers

Answer: Plant cell needs cell wall whereas animal cell do not because the plants need rigid structure so that they can grow up and out

Explanation: All cells have cell membranes, and the membranes are flexible. So animal cells can have various shapes, but plant cells only have the shapes of their cell walls.

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Which type of sentence is this? As Jim sat down on the rickety old chair, it abruptly collapsed beneath him. which of the following is true about these diagrams Ill give brainlist to anyone who answers correctly With my tummy growling, I approached Beamer. "Howabout a nice cheeseburger?" I asked.I waited as the screen loaded."Sorry, your cholesterol was a bit high this morning. Here'sa chicken salad."I frowned at the food that appeared. I was just starting tothink about watching the football game when I wasinterrupted"Your laundry will be dry in 10 minutes. After you fold it andput it away, you'll need to increase your pedometerreadout. Take a walk to the library and back. Your booksare due today"I sighed. Looks like no football game today.What does the author's word choice most clearly suggest about the narrator'sfeelings toward Beamer?A. She uses the words "appeared" and "increase" to convey that thenarrator feels excited to interact with Beamer.B. She describes the narrator as hopeful at first but thendisappointed about his meal and his activityC. She uses the words "frowned" and "sighed" to show that thenarrator is unhappy with Beamer's control of his life.D. She uses the phrase "you'll need to to indicate that Beamer hasauthority over these decisions Which sentence does not contain a misspelled word? I was trying to tie the kite's string when the perfectally aimed beach ball hit it. I was tryeng to tie the kite's string when the perfectly aimed beach ball hit it. I was trying to tie the kite's string when the perfectly aimed beach ball hit it. I was triing to tie the kite's string when the perfectly aimed beach ball hit it. Direction: Decode each item carefully Choose the letter of the correctanswer frYom the box. Write your answer on your answer sheetA. Repeat SignB. BINARC. RONDOD. Musical FormE. Da CapoF. TERNARYG. Second EndingH. Dal SegnoI. FINEJ. D.C AL FINE K. UNITARYL. A L CODA1 Nena sings the Paruparong Bukid excellently. She noticed that itsmusical composition has two sections.2 Eleonor has an amazing voice. I heard her sing one time and she repeats the song once again.3. Musical composition nowadays has multiple and varied sections4. I visited Princess in her house, because I wanted to witness how she plays piano. While playing, I was very much curious about how she goes back to the signs in her musical sheet.5. Troy , my friend is a great singer too. His favorite songs are those with multiple endings.6. Some songs have three sections.7. Vincent loves to sing. He sings the whole song once then repeat from the beginning up to the end.8. A classmate of mine during Music class sings a song once then goes back to the beginning of the song.9. Musical composer carefully designs and structures their composition.10. I am not musically inclined, however I love singing a song with onlyone section. Pls help What is the participle or participial phrase?running in the street was so fun that the kids did it every night, worrying their parents who were afraid they might get hit by cars. Where is point B on the number line 3. What part of the brain is highlighted in the diagram below? (4 points)Frontal lobeOccipital lobeTemporal lobeParietal lobe 5. Find the volume of the sphere shown, giving your answer correct to two decimal places. Please help. I will give brainliest. given 2x - 9y - 12 = 0, express 5x - 4y + 7 = 0 in terms of x only evaluate (11.6)^2 by using (a^2+b^2+2ab) a vehicle is moving with 20m/s towards the east and another is moving 15m/s towards the west Someone please help me Ill give out brainliest please dont answer if you dont know what is the answer to this question marking brainliest if it's correct 32614 round to nearest 100 place? Calculate the curved surface area of a cylindrical container 10cm diameter, length 18cm take the value of pie to 3.14 state one adaptation of nephron in the kidney of a desert mammal Write the equation of a sine function that has the following characteristics.Amplitude: 7 Period: 9 Phase shift: 1/4Type the appropriate values to complete the sine function. Which numbers identify the organelles that are present in BOTH plant and animal cells?