Water on Earth is billions of years old.
True or False?

Answers

Answer 1

Answer:

True

Explanation:

Answer 2

Answer:

true

Explanation:

water is always being recycled


Related Questions

How do the human nervous system and endocrine system interact in
response to a stimulus?
O
A. The endocrine system signals the nervous system to send out
nerve impulses in response to a stimulus.
B. The nervous system signals the endocrine system to release
hormones in response to a stimulus.
C. The nervous system responds to a stimulus, and the endocrine
system returns the body to a relaxed state.
D. The endocrine system responds to a stimulus, and the nervous
system returns the body to a relaxed state.

Answers

Answer: option B.

The nervous system signals the endocrine system to release

hormones in response to a stimulus.

Explanation:

The nervous system respond to stimulus through action potentials and neurotransmitters and they signals the endocrine system to secrete hormones.

The endocrine system is responsible for secreting hormones into the blood which is transported to the target cells. These hormones are responsible for metabolism , growth and response to stress. The hormones secreted provide feedback to the brain so as to affect neural processing.

How does DNA homology measure genetic relatedness ?

Answers

Answer:

by the nitrocellulose membrane filter method. (more info below)

Explanation:

Genetic relationship between mycoplasma as determined by nucleic acid homology.  DNA from each of the mycoplasma isolates tested was reacted separately by complementary RNA synthesized with homologous or heterologous DNA as a primer. The amount of DNA-RNA hybrids formed was tested using the method of the nitrocellulose membrane filter.

hope this helped!

The cavities in the brain that fill with cerebral-spinal fluid are called _______

A. Ventricals
B. Relay stations
C. Axon stations

Answers

A- Ventricles

Explanation :
A because that is the correct answer like the other person said

what special cells and tissue do flatworms have in their excretory and nervous system​

Answers

Answer:Phylum Platyhelminthes

Explanation:

Complete the following sentence correctly: ___________ rocks leads to the transformation of igneous rock into sedimentary rock by moving it __________, exposing it to energy from __________. *

O uplift, upward, the Sun
O subduction, downward, Earth's Interior
O uplift, downward, Earth's Interior
O subduction, upward, the Sun

Complete the following sentence correctly: _________ leads to the transformation of sedimentary rock into metamorphic rock by moving it _____________, exposing it to energy from __________. *

O uplift, upward, the Sun
O subduction, downward, Earth's Interior
O uplift, downward, Earth's interior
O subduction, upward, the Sun


Answers

Answer:

A, B

Explanation:

Sedimentary rocks are near the surface so the only one that works for that is A, sedimentary rocks are formed with water too, it weathers away at the rocks to form little sediments

Metamorphic rocks are in the earths interior and sedimentary are at the exterior, metamorphic rocks are formed through extreme heat and pressure meaning its near the earths interior

I hope this helps u!

Pls give brainliests( had 40 down to 2 no reason :(  ) and a thx ;)

Sedimentary rocks leads to the transformation of igneous rock into sedimentary rock by moving it has been exposing it to energy from sediments as uplift, upward, the Sun and subduction, downward, Earth's Interior.

What is the sedimentary rocks?

Sedimentary rocks are near the surface so the only one that works for that is sedimentary rocks are formed with water too, it weathers away at the rocks to form little sediments and metamorphic rocks are in the earths interior and sedimentary are at the exterior, metamorphic rocks are formed through extreme heat and pressure meaning its near the earths interior.

Igneous rocks has been called the magmatic, are all rocks that are formed by the solidification of magma. However, igneous rocks are classified into two groups. First are the plutonic or intrusive igneous rocks that are the result of the solidification of magma within the lithosphere. Secondly, there are the volcanic or extrusive igneous rocks that are the result of the cooling of magma that occurs at the surface or a shallow depth.

Therefore, Sedimentary rocks leads to the transformation of igneous rock into sedimentary rock by moving it has been exposing it to energy from sediments as uplift, upward, the Sun and subduction, downward, Earth's Interior.

Learn more about Sedimentary rocks on:

https://brainly.com/question/10709497

#SPJ2

A___ is two or more substances that are together in the same place but are not chemically
combined.

Answers

Answer:

Chemical Mixtures

A mixture is a material system made up of two or more different substances, which are mixed but not combined chemically. A mixture refers to the physical combination of two or more substances in which the identities of the individual substances are retained.

Explanation:

hope it helps : )

The halogens are the most reactive among all

Answers

this is true bruvvvvv

Answer: among all the elements on periodic table

Explanation:

Which of the following would help decrease Global Warming?
A. Drive hybrid/fuel efficient cars
B. Burn fossil fuels
C. Deforestation
D. Use aerosol cans

Answers

The answer is, A. Drive hybrid/fuel efficient cars

Answer:

The correct answer would be A.

Explanation:

All of the other things would increase global warming

Which of the following aquatic ecosystems is likely to have both a littoral and benthic zone?

a Lake

b Open ocean

c Coral reef

d None of the above

Answers

Answer:

C. Coral reef

Explanation:

Coral reefs are both found in the littoral zone which is on the shore in a tidepool and in the benthic zone which is the low level of the ocean.

The aquatic ecosystems that is likely to have both a littoral and benthic zone is lake. The correct option is a.

What is littoral and benthic zone?

The benthic zone, like the ocean, is the lake floor, made up of accumulated sunken organic matter.

The littoral zone is the area adjacent to the shore where light can easily penetrate and aquatic plants thrive. The pelagic zone encompasses a large body of water.

The Benthic Zone consists of organic sediments and soil at the bottom of a pond or lake. This zone will expand as the body of water ages. It is regarded as the digestive system of a pond or lake.

The littoral zone is a pond or lake's down-sloping shelf. This is the area that extends from the high-water mark to the shore and into the area where sunlight penetrates to the sediments at the bottom of a body of water.

Thus, the correct option is a.

For more details regarding aquatic ecosystems, visit:

https://brainly.com/question/4967501

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Giving 30 points and brainliest to the first answer

What are the catalysts that speed up chemical reactions in the human body called?

A. Hormones
B. Reactants
C. Products
D. Enzymes

Answers

i think it’s D not sure tho
I think D but actually it might be the right one

How much sperm does a man produce each day

Answers

Answer:

about 525 billion sperm cells

Explanation:

In fact, the average male will produce roughly 525 billion sperm cells over a lifetime and shed at least one billion of them per month. A healthy adult male can release between 40 million and 1.2 billion sperm cells in a single ejaculation.

Answer:

1,500

uring spermatogenesis, your testicles make several million sperm per day — about 1,500 per second. By the end of a full sperm production cycle, you can regenerate up to 8 billion sperm. This may seem like overkill, but you release anywhere from 20 to 300 million sperm cells in a single milliliter of semen.

help, i have info there and i need the punnet square filled! plz

Answers

Answer:

X.       x

Y /. XY      / Yx

----------

y /.  Xx    / xy

Explanation:

hope this helps

Maritime polar air masses _____.

A. bring clear, cold, dry air to much of North America

B .are warm, humid air masses that form over oceans

C. bring hot, dry weather to the southern Great Plains

D .are cold, humid air masses that bring fog to the West Coast

Answers

Answer:

d.

Explanation:

What is 80 multiplied by 80

Answers

Answer:

80 * 80

6400

Explanation:

It can be done by simple ways but making it 80^2

80 = 75 + 5

so u can use the formula of (a + b)^2

HOPE IT HELPS :)

PLEASE MARK IT THE BRAINLIEST!

Please help me with answer I need help

Answers

I think figure A because they look the most similar shape wise

A hormone released by the _____ controls the amount of calcium in the blood. thymus gland thyroid gland adrenal glands parathyroid glands

Answers

The answer is the parathyroid glands

Why does sexual reproduction result in more genetic variation in a species than asexual reproduction?

A. In sexual reproduction, offspring have more chromosomes than either parent.

B. In sexual reproduction, offspring are haploid organisms.

C. In sexual reproduction, offspring have fewer genes.

D. In sexual reproduction, offsprings are not identical to either parent.

Answers

Answer°sexual reproduction combines parts of two different genomes to produce offspring,

-Astra

Hope it help pafolloww at pa brain list po salamat

which chromosomes are the sex chromosomes A. chromosomes 1-22 B. the 3rd pair of chromosomes C. the 22nd pair of chromosomes D. the x and y chromosomes

Answers

Answer:

D.

Explanation:

Of the 23 pairs of chromosomes, the X and Y are the pair that determines the sex of the child.  X chromosomes stand for female, while Y chromosomes stand for male.

XX means a female

XY means a male

Hope this helps!

Alcoholic fermentation

1. Forms fewer ATP molecules and cellular respiration

2. Uses oxygen and ATP molecules as reactants

3. occurs in the muscle cells of animals and humans

Answers

Answer:

A.

Explanation:

It converts sugars into cellular energy without requiring much oxygen, but it doesn't provide nearly as much energy as a result of the process not using oxygen.

Answer:

1. Forms fewer ATP molecules and cellular respiration

Explanation:

Alcohol fermentation is usually done by yeast as us humans lack the genetic information to do it (however we can do lactic acid fermentation in low Oxygen level which produce Lactic acid, which is what hurts after a day or two of heavy playing or workout)

Alcohol Fermentation only produces two ATP which is significantly lower than what cellular respiration makes (scientists predict there to be about 38 ATP from per cycle of respiration)

A team of marine biologists observe that an inland sea is covered with a green slime. They also observe that besides fishing, the local population
practices large-scale farming in the area. In what possible way can farming be responsible for the state of the lake?
A.
Nutrients from fertilizers on the farm wash off into the lake and cause the green slimy algal bloom
B.
Pesticides from the farm wash off into the lake, causing algae to die and producing a green slime.
C.
D.
E.
Plants growing in the farm increase the chlorophyll levels in the ground, which runs off into the lake, causing the green slime.
The plants in the farm deplete the lake of nutrients and kill off microscopic organisms, causing the green slime.
The green slime in the lake is a toxin produced by pesticides that run off into the lake.
Reset
Next​

Answers

Answer:

A.

Nutrients from fertilizers on the farm wash off into the lake and cause the green slimy algal bloom

Explanation:

This question describes a team of marine biologists, who observe an inland sea covered up with a green slime. Firstly, this green slime is the the visible form of the proliferated growth of algae, hence, causing what is referred to as ALGAL BLOOM.

Algal bloom is caused by EUTROPHICATION, which is the pollution of water bodies with nutrients from fertilizers e.g phosphate, nitrate etc which causes a rapid algae growth. The excessive nutrients causing this algal bloom appearing like a green slime comes from the fertilizers used by farmers practising large scale farming within that area.

When this fertilizer is applied on plants, it gets washed into the water body and its constituents e.g phosphorus, nitrogen etc. serves as source of nutrient for the growth of marine organisms (algae). Hence, they grow excessively and form a bloom that appears like a green slime on the lake.

Hence, the farming activities is releasing pollutants in form of chemical substances which serve as nutrients for the proliferated growth of algae.

Answer:

B.  Pesticides from the farm wash off into the lake, causing algae to die

Explanation:

Green slime algae is a type of algae which is found in the marine ecosystem. This algae is a source of food for aquatic animals. It requires nutrients for producing food in the process of photosynthesis. When the nutrients present in the fertilizers such as nitrates move from the farm into the nearby lakes, its population increases and more food is available for the marine animals and fishing is not possible. But this decrease occurs in population when the pesticides wash off into the lake so farming will be possible for the fisheries.

The leeward side of a mountain receives far less rainfall than the windward side is what?

Answers

Answer: Rain Shadow

Explanation:

Much of airborne moisture falls as rain on the windward side of mountains. This often means that the land on the other side of the mountain (the leeward side) gets far less rain—an effect called a "rain shadow"--which often produces a desert.

in the bed or on the bed? give your reasons.​

Answers

On the bed because you will suffocate if you were in it

Where is the on and off "switch" located for the neuron?
A. The axon
B. The synaptic gap
C. The dendrites

Answers

Answer:

B.

---------------------

Question 1 (4 points)
True or False: Solar panels are the only way humans can capture energy from the sun
for use.
True
False

Answers

Answer:false

Explanation:because there are a lot of ways that you can get energy.

False will be your answer !

plz help
what type of adaption would an animal have if they were able to hold there breath for an hour? if u can explain plz​

Answers

Answer:

They will slow down their heart rate and will change their blood flow to parts like the brain, heart and other important organs and have positively charged oxygen-binding proteins, called myoglobin, in their muscles.

Hope this helped!

How did the Byzantine Empire help to shape the modern world?

Answers

Answer: The Byzantine Empire influenced many cultures, primarily due to its role in shaping Christian Orthodoxy.

Explanation:

Answer:

The modern-day Eastern Orthodox Church is the second largest Christian church in the world. In addition, Byzantine art from this period had a strong influence on the later painters of the Italian Renaissance.

Overall, the Byzantine empire has had a wide ranging influence over eastern and even western Mediterranean culture: modern Greece, the Orthodox Church, ancient Greek learning, Muslim and Slavic culture, and more.

Define and explain the term scientific theory

Answers

Answer:

A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not "guesses" but reliable accounts of the real world.

Explanation:

Sorry if wrong

How are tumor cells different from normal cells?

A. There are chromosomes in tumor cells.

B. Mitosis is not regulated in tumor tumor cells.

C. Tumor cells use meiosis to replicate.

D. Tumor cells are haploid and other cells are diploid.

Answers

Answer:

B

Explanation:

how do sponges repoduce sexually and asexually​

Answers

After fertilization in the sponge, a larva is released into the water. It floats around for a few days and then sticks to a solid to begin its growth into an adult sponge.
Sponges may reproduce sexually and asexually. ... After fertilization in the sponge, a larva is released into the water. It floats around for a few days and then sticks to a solid to begin its growth into an adult sponge. Sponges are also able to reproduce asexually through budding.

CARBON IS AN IMPORTANT ELEMENT FOR BIOLOGY BECAUSE

Answers

Answer:

D

Explanation:

Carbon is a basis for all life on earth

Other Questions
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What type of angle is formed by the hour and minute hands of the clock wen Amelia fineshes reading Select all statements below that are true about the binomial distribution shown on the right. The bar for any number k represents the probability of getting k successes in 5 flips. The number of successes, k, can range from 0 (no success) to 5 (all successes). Each coin flip is independent; it is not affected by any other coin flip. For 5 coin flips, P(2 heads) = P(3 heads). The sum of the probabilities shown in the binomial distribution is p. a discount voucher offering 15% off is used to pay a bill. after using the voucher the bill is reduced to 36.72.how much was the bill before applying the voucher discount? If someone is predisposed to a disease, they are more likely to contract the disease due to __________. 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Increase in tension by increasing the number of motor units that are stimulated is called _________. muscle tone autorhythmicity hypertonia recruitment Find the value of g(7) for the function below. g(x)=7/8 x -1/2 A. 53/8 B. 49/8 C. 60/7 D. 45/8 About 70,000 people live in a 6-mile radius of a city's town hall. Find the population density in people per square mile. Round your answer to the nearest whole number.The population density is about _ people per square mile. What are all the methods to finding zeros and factors of higher degree polynomial functions? Find the function for this... If a ball is thrown vertically upward with a velocity of 160 ft/s, then its height after t seconds is s = 160t 16t2. (a) What is the maximum height reached by the ball? ft (b) What is the velocity of the ball when it is 384 ft above the ground on its way up? (Consider up to be the positive direction.) ft/s What is the velocity of the ball when it is 384 ft above the ground on its way down? You need to remove a tree from your front yard. You have climbed the tree and trimmed off the branches, and you are now ready to chop down the trunk. It is very important that the tree falls in the right direction away from your house. You have attached a wire to the top of the trunk. You will attach the other end of the wire to the ground and pull it tightly so that when the trunk begins to fall, the wire will pull it in the right direction. The trunk is 24 feet tall and you are going to attach the wire to the ground 10 feet away from the base of the trunk. a) How long must your wire be to reach the ground? Ryan expects to deposit $1,000 now, $3,000 four years from now, and $1,500 six years from now in an account that is earning 12% per year compounded semiannually through a company-sponsored saving plan. What amount can he withdraw ten years from now Article MULTIPLE CHOICE / Will Mark Brainliest / ASAPMiranda sat in the high school computer lab typing like mad. It was 8:30 a.m., and her 1,000-word report on The Catcher in the Rye was due at 9:00. For the past hour, she had been flipping through the ratty pages of the old paperback trying to discern the major plot points and then typing out a few sentences that she hoped were logical. The only reason she was able to get into the lab that early was because she was one of Mrs. Brodys assistants, but a couple of hours in the lab didnt make up for weeks of zoning out in English class.Miranda could kick herself, but she was too busy skimming through her notes and attempting to remember somethinganything!that Mr. Giuffreda had talked about. Mr. Giuffreda was a tough grader, and Miranda did not work well under pressurenot a great combination. On top of all that, Miranda could hear her mothers voice in her head: One more bad grade in English, young lady, and no more soccer team. Miranda failed to see the relationship between soccer and book reports, but she also knew her mother wasnt kidding. 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Mirandas fingers were still flying, but by 8:59, Mrs. Brody asked Miranda to leave so she could start class on time. Miranda saved her work on her USB drive, collected her pages from the printer, and slung her knapsack over her shoulder. Then she trudged down the hall to Mr. Giuffredas class as slowly as possible, even though she knew she would be late and would probably get detention.What can be inferred from the passage?A. Miranda will ask Mr. Giuffreda for an extension.B. Miranda did not finish her book report on time.C. Miranda will no longer be Mrs. Brody's assistant.D. Miranda usually does a lot better in English class. A source card always includes which of the following information? Select all that apply.annotationfactual notescopyright datecall numberauthor's namepublication titlepage numbers The Pacific Ocean is on what side of North America