Answer:
Radiocarbon dating
Explanation:
Radiocarbon dating is a technique for determining the age of carbon-based materials derived from live beings. By measuring the quantity of carbon-14 in a sample and comparing it to an internationally accepted reference standard, an age may be determined. Radiocarbon dating is based on the basic principle that all living organisms absorb carbon from the atmosphere and food sources around them, including a small quantity of naturally radioactive carbon-14. When a plant or animal dies, it stops absorbing carbon, but the radioactive carbon it has stored decays.
What is the difference between a food chain and a food web?
A. A food web shows multiple food chains that are interconnected.
B. A food chain shows multiple food webs that are interconnected.
C. A food chain is used when there are no decomposers present, a food web includes them and shows the recycling of nutrients.
D. A food web is only used when organisms that have multiple ways of getting energy are involved, such as Omnivores.
Answer:
A
Explanation:
A food web shows multiple food chains that are interconnected.
plase help my and thanks . ammm
From the illustration, it can be said that the age of the rock layer is the same in the four locations of index fossil 1.
Age of fossilIt is a measure of how long a material has been fossilized.
Thus, if a rock layer contains a fossil and another similar rock layer does not have the fossil, one can conclude that the ages of the rock layers are different.
Only index fossil 1 is found in all the four locations as shown in the image. Hence, one can as well infer that the rock layers in all these four locations are of the same age.
More on age of fossils can be found here:https://brainly.com/question/2495177
#SPJ1
Select the correct answer.
Which is the correct definition of a large animal?
O A.
an animal that lives outdoors
OB.
an animal used for food, farming, or agriculture
OC. an animal of a large size that needs daily care
OD. an animal that needs large farms
Answer:
OC is the correct answer
Jayden is researching the Earth's
plates. How would he describe the
relationship between the Earth's plates
and soil and rocks?
Answer:
Geologists have hypothesized that the movement of tectonic plates is related to convection currents in the earth's mantle. Convection currents describe the rising, spread, and sinking of gas, liquid, or molten material caused by the application of heat.
The Earth's plates have a crucial relationship with soil and rocks. This connection is characterized by the plates' movement influencing the formation, distribution, and composition of soil and rocks across the planet.
The asthenosphere, which is semi-fluid beneath them, is separated into many tectonic plates that make up the Earth's lithosphere. Convective currents in the mantle cause these plates to move constantly. Processes like subduction, in which one plate falls beneath another, and rifting, in which plates move apart, are fueled by this movement. Mountains, valleys, and oceanic basins are all the result of these dynamic processes, which have a significant impact on the surface of the Earth.
Through volcanic activity and metamorphism, interactions between the plates also aid in the production of different types of rocks. Therefore, the distribution and makeup of soils and rocks on our globe are significantly shaped by plate movement, which also has an impact on landscapes, ecosystems, and geological characteristics.
To know more about Earth's plates here https://brainly.com/question/10508547
#SPJ3
Which led most directly to the decline of the latin language?
oa. the death of joan of arc
ob. fear of witchcraft
oc. the great schism
o d. interest in poetry
The great schism was what led to the decline of the latin language and is denoted as option C.
What is Great schism?This was characterized by Christianity being divided into two divisions, Roman Catholic and Eastern Orthodox.
This led to the latin language being replaced with others such as Greek etc in this scenario.
Read more about Great schism here https://brainly.com/question/1461104
#SPJ1
Which of the following is a scientific observation about the bird pictured
below?
Scarlet ibis
A. The pink feathers are especially beautiful.
B.The long beak helps the bird eat insects.
C.The scarlet ibis is the national bird of Trinidad.
D. The bird's features are red.
Answer: Yup, B should be correct :)
Answer:
B
Explanation:
B is the most "scientific" of the options
What adverse effects does covering the land with concrete and asphalt create?
Vegetation and trees cannot grow.
The flow of water in rivers is changed.
Non-native species are introduced to a foreign environment.
Natural resources are depleted.
Learn more about Asphalt and concrete effect on environment here:
https://brainly.com/question/14718527
May I get some help with his homework question?
what best discribes a possible negative impact of irrigation of farmland
Answer:
Food can be produced in dry areas.
Explanation:
This can be rice.
Why would a civilization choose to live near a river that regularly floods?
o a. the flooding provides extra water for drinking.
o b. flooded rivers have more fish than other rivers.
o c. rivers carve out extra land along the banks after floods.
d. rivers leave fertile soil along their banks after floods.
Rivers with regularly floods leaves fertile soil along their banks which is why a civilization will choose to live near there.
What is Fertile?
This is defined as the ability of land to produce crops and vegetation in abundant quantities.
Flooding washes minerals and humus to the bank of rivers which favors growth of plants which is why option D was chosen.
Read more about Flooding here https://brainly.com/question/134213
#SPJ1
How does sea level change when Earth's global temperature is lower?
A. Glaciers grow bigger, causing sea level to fall.
B. Glaciers grow smaller, causing sea level to fall.
C. Glaciers grow smaller, causing sea level to rise.
D. Glaciers grow bigger, causing sea level to rise.
Glaciers grow smaller, causing sea level to rise when Earth's global temperature is lower. Thus, the correct option is C.
Sea level lowers during cold climate periods, known as glacial epochs or ice ages, due to a shift in the global hydrologic cycle, in which water evaporates from the oceans and is stored on the continents as massive ice sheets, extended ice caps, ice fields, and mountain glaciers. At the last glacial maximum, some 20,000 years ago, global sea level was about 125 meters lower than it is today.
What is interglacial epochs?Because the melting North American, Eurasian, South American, Greenland, and Antarctic ice sheets returned their stored water to the world's oceans as the climate warmed, sea level rose. Sea level is at its highest during the warmest eras, known as interglacial epochs.
We are currently living in the most recent interglacial, which began around 10,000 years ago and is referred to by geologists as the Holocene Epoch. Sea levels were about 3 to 20 meters higher than they are now during several previous interglacials.
For more information regarding sea level, visit:
https://brainly.com/question/2092614
#SPJ1
Name the cavity between the nose and mouth.
A. pharynx
B. larynx
C. trachea
D. Esophagus
The cavity which separate or in between the nose and the mouth is the nasal cavity.
The nose and the mouth meet at a junction called the pharnx; option A
What is nasal cavity?The nasal cavity refers to a large, air-filled space above and behind the nose in the middle of the face. It is the cavity which divides the nose and mouth.
However, the nasal septum divides the cavity into two cavities .
The larynx is the passageway for air between the pharynx above and the trachea below.The pharynx carries air, food and fluid down from the nose and mouth.So therefore, the cavity which separate or in between the nose and the mouth is the nasal cavity.
Learn more about the pharynx:
https://brainly.com/question/3350759
#SPJ1
How do pollutants add to the problem of plastic in the ocean?
Answer:
Sea creatures will choke on it and suffers and die and it could make the water brown/unhealthy and sea creature may get stuck in the junk and die after that way.
Drinking alcohol during pregnancy negatively impacts development of the fetus because
1. Why is Maya Lim excited about classroom bioprinters? 2. What parts of Maya Lim's job as a chemical engineer sound interesting to you?
Classroom bioprinters can be used to print literally any biological object, whereas a chemical engineer is responsible to use chemistry to develop processes and devices.
What is a bioprinter?A bioprinter is a device that combines cells and transcriptional growth factors, in order to generate structures similar to tissues and organs.
Moreover, a chemical engineer is aimed at exploring the chemical properties of matter to develop processes and devices.
In conclusion, classroom bioprinters can be used to print literally any biological object, whereas a chemical engineer is responsible to use chemistry to develop processes and devices.
Learn more about bioprinters here:
https://brainly.com/question/25468891
#SPJ1
How many independent variables should you test at a time?
A two
B one
C as many as you want
D three
Answer:
b - one
Explanation:
testing only 1 independent variable at a time ensures that one factor causes a change in your dependent variable
testing more than 1 makes it unclear which independent variable caused a change in the dependent variable
Where is the nucleus usually located?
A. outside of the cell
B. in the center of the cell
C. moves between cells
Answer:
B
Explanation:
usually in the center . depends on what cell prokaryotic or eu
Why isa DNA replication regarded as semi conservative?
Answer:
each helix that is created contains one strand from the helix from which it was copied.
Explanation:
During respiration, what do consumers such as animals release?.
Answer:
carbondioxide
Explanation:
during respiration consumers release carbondioxide an inhale oxygen
Which question is most likely to be found in a dichotomous key for fish identification?
Where was the fish found?
Does the fish live in the water?
How closely related is it to a salmon?
Does it have a rounded tail?
Answer:
D
Does it have a rounded tail?
Which claim is most likely to be based on pseudoscience A. The arrangement of the stars can bring you good luck B. The color of light from a star can tell you how old it is C. The planets in our solar system move around the sun D. The volume of gas will increase if you heat the gas
The claim 'The arrangement of the stars can bring you good luck' is most likely to be based on pseudoscience.
What is pseudoscience?Pseudoscience is defined as knowledge that is not obtained or derived from using the scientific method.
From a scientific perspective, the type of knowledge derived from pseudoscience cannot be verified and therefore is meaningless.
In conclusion, the claim 'The arrangement of the stars can bring you good luck' is most likely to be based on pseudoscience.
Learn more about pseudoscience here:
https://brainly.com/question/604092
#SPJ1
1. A new species of multicellular, eukaryotic heterotrophs is discovered. This species secretes digestive enzymes to digest its food externally. Which taxa would this organism belong to?
A.
domain Archaea
B.
phylum Platyhelminthes
C.
kingdom Fungi
D.
kingdom Animalia
2. Mammals and reptiles both belong to the amniote clade. What is the evolutionary significance of this clade?
A.
Amniotes produce membranes that allow them to reproduce without laying eggs in water.
B.
Amniotes produce milk to feed their offspring.
C.
Amniotes were the first vertebrates to evolve limbs specialized for living on land.
D.
Amniotes were the first vertebrates to evolve jaws for digesting the tough food found on land.
3. Which of the following is an example of negative feedback leading to homeostasis?
A.
a sponge conforming its internal salt concentration to match the salinity of its environment
B.
a frog slowing its metabolic rate while hibernating over the winter
C.
a cat’s uterine contractions increasing in strength as it gives birth to a litter of kittens
D.
a human sweating to reduce his or her body temperature on a hot day
2.In the evolutionary process, mammals and reptiles evolve Amniotes produce membranes that allow them to reproduce without laying eggs in water.
What are aminiot animals?Amniote animals are those that have amnion surrounding the embryo, while non-amniotes do not have this membrane.
3.Homeostasis in environments can have as a negative example a sponge conforming its internal salt concentration to match the salinity of its environment.
By saving too much the marine environment limits the lives of other animals causing them to migrate in this way, there will be a collapse in the food chain.
See more about evolution at brainly.com/question/13492988
#SPJ1
1. Those who were successful in Round One did not survive equally well when others were
competing for food at the same dish during round two. Which beak was not successful and why?
Large beak will not be successful if the food is small in size because they can't eat that food.
Which beak was not successful and why?
Large beak was not successful if there is small sized food is present on the dish while on the other hand, if the dish has big sized food then the small beak can't survive the second round because they are unable to eat that food.
So we can conclude that big beak will not be successful if the food is small in size because they can't eat that food.
Learn more about beak here: https://brainly.com/question/668440
#SPJ1
Help please . when and where would you expect to find the highest rate of primary productivity?
o a. in the temperate regions during the summer months
o b. in the polar regions during the summer months
c. in the polar regions during the fall
o d. in the tropics during the fall
Expected to find the highest rate of primary productivity in the tropics during autumn
In which ecosystems is primary productivity highest?The more sunlight the system receives, the greater the productivity. Thus, in tropical regions — where there is more sunlight and temperatures are higher throughout the year — productivity is higher than in places with a
temperatecold or polar climate.With this information, we can conclude that Expected to find the highest rate of primary productivity in the tropics during autumn
Learn more about primary productivity in brainly.com/question/14017102
#SPJ1
Use the following information to calculate the correct frequencies: In a population of
Pennsylvanians, only 18% of individuals express the recessive trait of Syndactyly or webbed finger
(formulas: p+q=1 and p²+2pq+q2²=1)
a. What percentage of the population are not Webbed?
If we have the recessive genotypic frequency, we can calculate the phenotypic frequencies in a population in Hardy-Weinberg equilibrium. The percentage is 82%.
What si the Hardy-Weinberg equilibrium theory?The Hardy-Weinberg equilibrium theory states that allelic and genotypic frequencies remain the same through generations in a population that is in equilibrium.
The allelic frequencies in a locus are represented as p and q. Assuming a diallelic gene,
Allelic frequencies
The frequency of the dominant allele f(X) is pThe frequency of the recessive allele f(x) is qGenotypic frequencies after one generation are
• p² ⇒ H0m0zyg0us dominant genotypic frequency,
• 2pq ⇒ Heter0zyg0us genotypic frequency,
• q² ⇒ H0m0zyg0us recessive genotypic frequency.
The addition of the allelic frequencies equals 1
p + q = 1.
The sum of genotypic frequencies equals 1
p² + 2pq + q² = 1
Available data:
18% of individuals express the recessive trait of Syndactyly
Let us say that the dominant allele is A and the recessive allele is a.
The dominant allele A codes for normal finger.The recessive allele a codes for webbed finger.Assuming this gene expresses complete dominance,
H0m0zyg0us dominant and heter0zyg0us -AA and Aa- individuals have normal finger.Their frequency in the population is p² + 2pq.
h0m0zyg0us recessive -aa- individuals have webbed finger.Their frequency in the population is q².
Individuals that express Syndactyly have webbed finger and their genotype is h0m0zyg0us recessive, aa. Their frequency in the population is q².
q² = 18% = 0.18
We can get the frequency of individuals with normal fingers by clearing the following equation,
p² + 2pq + q² = 1
p² + 2pq + 0.18 = 1
p² + 2pq = 1 - 0.18
p² + 2pq = 0.82
The frequency of individuals with normal fingers is p² + 2pq = 0.82 = 82%.
The percentage of the population are not Webbed is 82%.
You can learn more about the hardy-weinberg equilibrium at
https://brainly.com/question/16823644
#SPJ1
an organism has a hapoloid number of 20. what is the organisms diploid number
which mammal didnt become extinct during the Cenoozoic era
Answer:
rodents and small horses
When humans plant more trees, carbon can begin entering the _______________ as carbon dioxide.
Answer:
Hydrosphere, geosphere or biosphere
Explanation:
What is spermatogenesis and sporophyte?
Answer:
Explanation:
1. Production of sperm by meiosis
2. diploid generation which alternates with haploid (in plants)
At which of these locations is a dietician least likely to work?
school
theater
hospital
nursing home
Answer:
B. Theater
Explanation:
Think about it. Would a dietician really work at an amusement park? That sounds ridiculous! If a dietician wouldn’t work at an amusement park, he or she would not work at a theater.
You’re welcome.