You find a fossil in your backyard. 12% of the Carbon 14 isotope is remaining. How old is the fossil?

Answers

Answer 1

Answer:

16,250 years (plus or minus (±) 10 years)


Related Questions

After eating a sugary snack, a person's blood sugar
level may rise for a short period of time. Which
statement describes the body's way of restoring
homeostasis?
A. The brain will stimulate the body to sweat
in order to increase blood sugar levels.
O B. The brain will stimulate the cells to produce
more sugar, increasing blood sugar levels.
C. The brain will stimulate the cells to
maintain the elevated blood sugar levels.
O D. The brain will stimulate the release of a
chemical that will lower blood sugar levels.

Answers

The answer should be D.


a) Which of the three types of organisms (multicellular, unicellular and colonial) would have
been the earliest form of life?

Answers

Answer:

unicellular...lemme know if am right

(10 points)
The diagrams below show some changes in an
environment over time.
(A)
(B)
(C)
Which phrase best describes this sequence of
diagrams?
(1) the path of energy through a food web in a
natural community
(2) the altering of an ecosystem by a natural
disaster
(3) natural communities replacing each other in
an orderly sequence
(4) similarities between an aquatic ecosystem
and a terrestrial ecosystem
(D)
r

Answers

Answer:

The correct answer is - (3) natural communities replacing each other in an orderly sequence

Explanation:

In this diagram, there is ecological succession occurred, the process of the new natural community over the older natural community in an orderly sequences.

In this case, there are change from an aquatic ecosystem to new land ecosystem by changing various biotc and abiotic factors. The ecosystem go through various changes and physical changes.

Can someone plz help me out. I don’t really understand this.

Answers

7. b and 8. c i attached the photo for u to see how i did it

I will give brainlies if you answer correctly and give an explanation!

Regular periods of overeating followed by self-induced vomiting are associated with which physiological disorder?
A. Anorexia
B. Bulimia
C. Obesity
D. Parkinson's

Answers

Answer:

B. Bulimia

Explanation:

See below for a description of each case:

Anorexia (also known as Anorexia nervosa) is an eating disorder characterized by abnormally low body weight. It's similar to the starving of oneself to achieve lower weight, but this is unhealthy. It's very common (more than 3 million cases per year in US) and is treatable. This can last for several months or years and is more common in females from ages 18–35.

Some symptoms include:

Extreme weight loss

Thin appearance  

Fatigue and insomnia  

Bluish discoloration of the fingers

Hair that thins, breaks or falls out  

Amenorrhea (absence of menstruation)  

Dry or yellowish skin  

Dehydration

Bulimia (also known as Bulimia nervosa) is an eating disorder characterized by binge eating, followed by methods to avoid weight gain (ie. vomiting). It's very common (more than 3 million cases per year in US) and is treatable.  It can last several years or be lifelong and are more common in females from ages 18–35.

Some symptoms include:

Binge eating

Forceful vomiting

Long-term fear of gaining weight  

Overuse of laxatives or diuretics

Use of supplements or herbs for weight loss

Excessive exercises

Stained teeth (from stomach acid)

Obesity is a condition characterized by abnormal or excessive fat accumulation. It's extremely common (more than 3 million cases per year in US) but is treatable. It can last several years or be lifelong. Family history may increase likelihood for some types.

Some symptoms include:

Above average body weight  

Sleep apnea- a condition in which breathing is irregular and periodically stops during sleep  

Skin problems caused by moisture that accumulates in the folds of your skin  

Osteoarthritis in weight-bearing joints, especially the knees

Parkinson's disease is a chronic and progressive movement disorder, meaning it weakens the control of movements of the body over time. It's fairly common (more than 200,000 cases per year in US). There are treatments to manage the condition but there is no known cure. This can last several years or be lifelong. It's more common in 60+ years old males.

Some symptoms include:

Tremors, trembling of hands, arms, legs, jaw and face

Stiffness of the arms, legs and trunk

Slowness of movement

Poor balance and coordination

Speech difficulty

What is used to protect your eyes in a laboratory?
A. Goggles
B. Gloves
C. An apron
D. A sink

Answers

Answer:

A. Goggles

Goggles are used to protect your eyes

What allele pairs will result from this combination of alleles MmQq? ( use the 13,14,23,24 strategy).
A). All of these are correct
B). MQ, Mq, mQ, mq
C). Mq, mQ, mq, Mq
D). MM, mm, QQ, qq

Answers

The answer is B). MQ, mQ, Mq, mq

which of the following element is not present in proteins

Answers

Answer:

Protein: a compound made of amino acids. Each amino acid is made of carbon, hydrogen, oxygen, and nitrogen. Most proteins also include sulfur.

Which means the only choice left is helium

i hope this is the answer you are looking for

How does binomial nomenclature help scientists?

help!!!​

Answers

Answer:

Explanation:

Bionomial nomenclature helps scientists by helping them classify organisms. This would be a two-name system that scientists use that describes the genus and species of the organism.

The diagram shows the complete classification for the red
fox. The names for some of the taxa are missing.
Eukarya
?
Animalia
Phylum
Chordata
Class
Mammalia
Order
Carnivora
Family
Canidae
?
Vulpes
?
Vulpes vulpes
If species is the most specific group shown in the diagram, what is the
scientific name of the red fox species?

Answers

Answer:

Kingdom

Explanation:

Answer:

Kingdom

Explanation:

A-P-E-X

Bacteria Natural Selection

Answers

Answer:

Bacterial resistance arises through the simple process of natural selection. Bacteria divide rapidly, but DNA replication is imperfect. In the presence of antibiotics, while most bacteria are killed, a small number of resistant mutants may survive and take over.

Explanation:

When bacteria are initially exposed to an antibiotic, those most susceptible to the antibiotic will die quickly, leaving any surviving bacteria to pass on their resistant features

What makes Pluto different from the 8 planets in our Solar System?

Answers

Answer:

Hey mate.......

Explanation:

This is ur answer.....

The International Astronomical Union (IAU) downgraded the status of Pluto to that of a dwarf planet because it did not meet the three criteria the IAU uses to define a full-sized planet. ... It contains the asteroid belt as well as the terrestrial planets, Mercury, Venus, Earth, and Mars.

Hope it helps!

mark me brainliest plz....

Follow me! :)

A 52-year-old woman has difficulty initiating voluntary movements. She can clearly state what she intends to do, describe exactly how she would do it, and picture herself doing it easily. When she is able to begin the motion, she can complete it smoothly and accurately, but she has difficulty beginning the motion. If the difficulty arises from a defect in one particular area of the nervous system, which area is most likely to be involved

Answers

Answer:

Basal Ganglia

Explanation:

The Basal ganglia function is to regulate the voluntary movements or autonomic movement. This is done by receiving and transmission of impulses. Impulses are received for upcoming movement from the cerebral cortex and then process and adjust from where it is convey to the thalamus which then relays this information back to the cortex. The well defined movement instruction is finally sent to the skeletal muscles through the tracts of the pyramidal motor system. It also function in planning and modulation of movement, memory and eye movement.

There are five types of basal ganglia corpus striatum, claustrum, amygdala, substantia nigra and subthalamic sails which all function together.

What are three of the products whales are hunted for by the whalers and their substitute products?

Answers

I know that they are hunted with Whale oil

WILL GIVE BRAINLIST!!!! What effects do weathering, erosion, and deposition have on agriculture in Texas?

Answers

Answer:

cause the soil to become less fertile therefore causing the loss of nutrients and farmers can no longer plant crops causing profits to drop.

Explanation:

Please help and thank you whoever you are

Answers

i believe it’s 2. the suns radiation provides heat to the earth sorry if i am wrong

How might change in one population affect other populations?

Answers

The food chain will mess up.

which are examples of steroids? A. testosterone and trans fats B. cholesterol and phospholipids C. cholesterol and vitamin D D. estrogen and phospholipids

Answers

Answer:

A

Explanation:

because it really is suppose. to make u more stronger tougher and high testosterone.

What causes the change from day to night and vice versa?

A. The orbit of the sun around Earth.
B. The moon's rotation around Earth
C. The rotation of Earth on its axis.
D. The orbit of Earth around the sun

Answers

Answer:

c? if u stand infront a light and spin, the opposite side to the light would be dark?

C,the rotation of earth on its axis

Please help...Will mark brainiest....It is due and I need help

Answers

Answer:

Explanation:

For the 1st one with the Cheetah: It would be a long tail because it helps them balance when they turn. Sinch Cheetahs move extremely quickly they need a balance to ensure they don't topple over when they turn, this tail provides this balance.

For the 2nd one with the bear: Thick coats on a bare will help provide warmth whenever they go to hybernate. Thin fur would leave room for freezing and wouldn't be able to help them maintain the proper body temperature.

The 3rd one with the clownfish: A round tail provides a bigger boost when swimming since it is able to push more water. A forked tail would create a gap when they swim so they would have to expend more energy than with a round tail.

The 4th one with the Finch: Since grubs live underground a thinner beak would be able to dig them out and stab them faster. This allows them to reach farther and get more food.

Answer:

D AZ FCSDF SDF F

Explanation:

just seeing how this works don't mind me

A complex multicellular organism has different levels of organization. What is the order of the levels from least complex to most complex?

1organ system, organ, tissue, cell
2cell, tissue, organ, organ system
3cell, organ system, organ, tissue
4organ, tissue, cell, organ system

Answers

Answer:

A. tissue, cell, organ, organ system, organism

Explanation:

The order of the levels from least complex to most complex are 3cell, organ system, organ, tissue.

What is complex multicellular?

The term multicellular organism is known to be a type of an organism that is made up of multiple cell.

These organisms are known to be complex due to the fact that they have different kinds of differentiated cells such as 3cell, organ system, organ, tissue.

Learn more about multicellular organism  from

https://brainly.com/question/11801282

I Now Give Up On Life :) Don't Try And Stop Me

Answers

Wdym you give up...

hii, NEVER GIVE UP. <3

Someone please please help me with this !! I would really appreciate it

Answers

Answer:

A

Explanation:

Because you would have to have a high mobility to get food and take of without being hit.

Why is the sea otter's diet of seafood a problem with some of the fisherman?

Answers

Answer:

Sea otters, because of their eating habits, are considered a “keystone predator,” predators that keep the ecosystem balanced. ... When not enough otters are around to eat the sea urchins, the urchin colonies grow unchecked and “urchin barrens” increase.

Explanation:

List 4 major characteristics of this Sea Otters.

Answers

Answer:

The sea otters can close their nostrils and their auditory passages in the water.

The fifth toe of each leg is longer, which allows them to swim more easily, but hinders their movement on land.

Their body has great agility to float, due to the excellent lung capacity of these otters, and the air that can trap...

They can walk but in a somewhat clumsy way, usually moving with small jumps.

Hope this helps!!!

Please mark this answer as Brainiest.

Which of the following sentences are the best short summary for a flashlight?A A flashlight flashlight has has many many uses.uses.A A flashlight flashlight is is able able to to create create light light energy, energy, which which allows allows us us to to see see in in the the dark.dark.A A flashlight flashlight is is a a necessary necessary tool tool for for every every household.household.A A flashlight flashlight is is a a portable, portable, battery-battery-operated operated device device that that makes makes light.light.

Answers

Answer:

The last one

Explanation:

Flashlight is a portable, battery-operated device that makes light.

A flashlight is a portable, battery operated device that makes light is the best short summary for a flashlight.

What are the features of flashlight?

A flashlight or torch is a portable hand-held electric lamp. Formerly, the light source typically was a miniature incandescent light bulb, but these have been displaced by light-emitting diodes since the mid-2000s.

The three main features for a flashlight are Dimensions, Battery, and Light. Each of these characteristics are very important when it comes to selecting a flashlight.

Flashlights are used as a light source outdoors, in places without permanently installed lighting, during power outages, or when a portable light source is needed.

Learn more about flashlight:

https://brainly.com/question/25780677

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20 pttttttttt quickk​

Answers

Answer
C

Explanation:
None

What is the difference between a) prokaryote and eukaryote; b) autotroph and heterotroph; c) unicellular and multicellular?

Answers

Answer:

Explanation:

a) eukaryotes have membrane bound organelles like nuclei while prokaryotes don't

b) autotrophs = producers that can make their own food while heterotrophs consume producers or other consumers

c) Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function

Which of these statements about constellations are true?


Constellations are always changing and may form new images.

Constellations are groups of stars that form patterns in the night sky.

Constellations are groups of stars that can be seen in specific areas of the night sky.

Each constellation has a story about what it means or represents.

Answers

I going with A hope that helps

The statements which are true about constellations are as follows:

Constellations are groups of stars that form patterns in the night sky.Each constellation has a story about what it means or represents.Constellations are always changing and may form new images.

Thus, the correct options for this question are A, B, and D.

What do you mean by Constellations?

Constellations may be defined as clusters of stars that form a recognizable pattern and were imagined in order to construct noticeable and apparent configurations of objects or creatures in the sky, especially at night.

These groups of stars are also present in the day but they are not perceived due to the extremely high light of the sun. So, they form patterns in the night sky. These groups of stars are not specifically present as they are distributed randomly and can form new images.

Therefore, the correct options for this question are A, B, and D.

To learn more about Constellations, refer to the link:

https://brainly.com/question/667281

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Hi! Could You Help Me? - Pick A Scenario That You Believe Will Have The Greatest Impact On A Food Web In Your Local Ecosystem And Explain -

Answers

3: Trees are very eco friendly and they are what help us breathe natural air. They have a impact in a pro and con way. Pro, they build more stores, homes, and things we need in those spaces. Con: They are killing our fresh air and we don’t need that. The world is already going through disasters, and we are getting animals extinct.
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