Answers
Answer:
A. 17,100
Explanation:
The half life of carbon-14 is around 5,700 years. When the shell contains 50% of its original carbon-14, 5,700 years have passed. 25% means another 5,700 years have passed, meaning 11,400 years in total have passed. 12.5% means another 5,700 years have passed, meaning 17,100 years have passed in total.
Related Questions
Which of the following would be made entirely of
nonrenewable resources?
A. A bedspread
B. Olive oil
C. A car engine
D. A textbook
SUBMIT
Answers
Answer:
C. A car engine
Explanation:
Renewable sources of energies are those who can grow again, such as trees and plants, or that can always reappear, such as wind and solar energy. Nonrenewable energy, however, cannot be regenerated, like oil and coal, or are mined minerals.
A piece of wood weighs 72 g. What is its density
if its volume is 20 cm'?
Answers
Answer:
desnity is equal weight divided by volume ,so 72/20= 3.6
Explanation:
Hope this helps
Differentiate between:
Species diversity and ecosystem diversity
Answers
Answer:
Eplanation :spices diversity is the number or variety of species in the world or in a particular region. Ecosystem diversity is the number or variety of ecosystems within a particular area.
Answer:
Species diversity refers to the number of different species that are represented in a given community while ecosystem diversity refers to the variety of different ecosystems within an area.
Describe the bonding between ionic compounds
Answers
Answer:
Ionic bonding is the complete transfer of valence electron(s) between atoms. It is a type of chemical bond that generates two oppositely charged ions. In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion.Explanation:
Hopes this helps. Mark as brainlest plz!Answer:
Ionic bonding is the complete transfer of valence electron(s) between atoms. It is a type of chemical bond that generates two oppositely charged ions. In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion.
Explanation: It is
(PLEASE HELP!! AND NO LINKS OR I’LL REPORT YOU!) True/False: Organisms can adapt to unfavorable environmental conditions in their lifetime.
Answers
PLEASE ANSWERR ASAP I WILL GIVE BRAINLYEST AND REPORT (science) I KNOW 1, 2 AND 5 I NEED 3 4 AND 6
Answers
HELP ME ASAP! bbbbbb
Answers
Answer: I'm gonna say the answer is Mutualism.
Many snakes and lizards live in the desert, where temperatures are high during the day and cold at night. How does the temperature range affect the size of the snakes and lizards?
A. High daytime temperatures allow them to grow as large as the food supply will allow.
B. Cold nighttime temperatures limit their size, because large ectotherms need a long time to warm up in the sun.
C. High daytime temperatures limit their size, because large endotherms would overheat on very hot days.
D. Cold nighttime temperatures limit their size, because large endotherms would lose too much of their body heat.
Answers
Answer:
A. High daytime temperatures allow them to grow as large as the food supply will allow.
Explanation:
Snakes and lizards are cold-blooded animals. This type of animal cannot maintain a constant body temperature and depends on the temperature of the environment to keep warm and keep its organs and metabolism working.
Room temperature is so important to these animals that they even determine the size of their bodies. For these animals, high temperatures allow them to have their metabolism accelerated, so they can grow as much as the availability of food allows. On the other hand, if there is not enough food, or very cold temperatures, they will need to be smaller in size, as the metabolism will be slow.
Certain individual females in a population of deer decide to stop breeding with males that don't have antlers. this is an example of which Form of speciation
A. Allopatric speciation
B. Sympatric speciation
C. Parasympathetic speciation
Answers
Certain individual females in a population of deer decide to stop breeding with males that don't have antlers. This is an example of which Form of speciation A. Allopatric speciation.
What's an allopatric speciation instance?
Allopatric speciation occurs when two companies of organisms are separated by using a bodily or geographic barrier. Not unusual examples of those boundaries include mountain degrees, oceans, or even big rivers. The isthmus of Panama is a high instance of a geographical barrier and it separates the Atlantic and Pacific oceans.
In allopatric speciation, groups from an ancestral populace evolve into separate species due to a period of geographical separation. In sympatric speciation, agencies from the same ancestral populace evolve into separate species with no geographical separation.
Allopatry, which means 'in another area', describes a population or species this is bodily remoted from different comparable companies by an extrinsic barrier to dispersal. From a biogeographic angle, allopatric species or populations are those that do not have overlapping geographic levels.
Learn more about Allopatric speciation here: https://brainly.com/question/12387377
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Answer:
Its B
Explanation:
Sympatric speciation
Use the table to write the phenotypes that would be visible given the different genotypes.
I will mark Brainlist.
Answers
Answer:
EE. Large Eyes
oo. Round face shape
Ss. straight hair
CC.normal chin
Cc. normal chin shape
ee. Small eyes
ss. Curly hair
Oo. Oval face shape.
Dominant & recessive alleles are similar to sex-linked alleles because...
A. both have alleles that are only present on the X or Y chromosome.
B. both have one allele that hides the other allele when it is present.
C. both blend the allele traits together in the phenotype.
D. both have two or more dominant alleles.
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Answers
Answer:
B. Both have one allele that hides the other allele when it is present
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Answers
Answer:
the answer is B gamma particle
Answer:B
..............................
lodine-131 is radioactive. If after 160 days only 1/8 of the sample remains, how long is
its half-life?
A. 92.2 days
B. 20 days
C. 53.3 days
D. 16 days
Answers
explain the term.evapouration
Answers
Answer:
the process of turning from liquid into vapour
Answer:
Evaporation is a surface phenomenon, which implies that the process only occurs at the surface of the liquid. During evaporation, the molecules of the liquid that are present at its surface overcome the intermolecular forces of attraction to break away from the liquid and escape into the atmosphere as a gas (or vapour).
Or
The process of turning from liquid into vapour
This is the Answer for your question :3
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Choose the items that complete the sentence about the key features of f(x) = 8x. The y-intercept is Choose... , the asymptote is y = Choose... , and the range is y > Choose... .
Answers
Answer:
I suppose that the equation is:
f(x) = 8/x
(You wrote 8x, this is a linear function, so it has no asymptotes, then I assume that the actual function was 8/x)
The y-intercept is the value such that f(x) = 0
Notice that there is no value of x such that 8/x = 0 (if the numerator is never zero, then the quotient can't be zero)
So we do not have an y-intercept.
The asymptote:
Here we have four:
if x tends to zero from the negative side, then:
8/x tends to negative infinity.
if x tends to zero from the positive side, then:
8/x tends to positive infinity.
These two asymptotes can be written as:
[tex]\lim_{n \to \_-0} \frac{8}{x} = -\infty\\ \lim_{n \to \_+0} \frac{8}{x} = +\infty[/tex]
We also have two when x tends to plus infinity (and 8/x goes to zero) and when x tends to negative infinity, such that the function tends to zero again, these two can be written as:
[tex]\lim_{n \to \infty} \frac{8}{x} = 0\\ \lim_{n \to -\infty} \frac{8}{x} = 0[/tex]
Finally, the range:
The only value that y never reaches (only on limits) is:
y = 0
Then the range is the set of all real numbers except the zero, or:
R : { x ∈ R / {0} }
Is anaphase II similar to anaphase in mitosis?
A. Yes
B. No
Answers
Answer:
A
Explanation:
The __________ system is made up of the nose, pharynx, trachea, lungs, bronchi, and alveoli. (5 points)
a
circulatory
b
endocrine
c
immune
d
respiratory
Answers
Answer:
respiratory system. it is the system that helps you breathe/lets oxygen in body
Answer:
D. RespiratoryExplanation:
Respiratory is a pertaining to respiration; respiratory assistance. The respiratory system is made up of the nose, pharynx, trachea, lungs, bronchi, and alveoli.
Circulatory is relating to circulatory system or to circulation of the blood.
Therefore, the correct answer is d. respiratory.
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Which statement best explains how sewage systems help fight the spread of disease?
A. They carry antibiotics that kill pathogens
B. They carry human waste to treatment facilities away from cities
C. They kill animals that spread pathogenic bacteria
D. They add chlorine to drinking water before it is transported to homes.
Answers
B. They carry human waste to treatment facilities away from cities
Please help me to solve this question.
Answers
Answer:
i. Liver
ii. Heart Muscle, involuntary
iii. The cardiac muscle cell has one central nucleus, like smooth muscle, but it also is striated, like skeletal muscle. The cardiac muscle cell is rectangular in shape. The contraction of cardiac muscle is involuntary, strong, and rhythmical.
Explanation:
hii! i’ll give brainliest pls help
Answers
Answer:
I believe the answer is A. not building towns near the edge of a tectonic plate
How many dogs are in the world
Answers
Answer:
900 million around the globe.
Explanation:
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Justify the claim by describing an example of a behavioral event in ANIMALS that occurs in response to a 24-hour light/dark cycle.
Answers
This is cyclical process which controls sleep/wake activity. It involves cyclical changes in hormone levels, and is subject to regulation from external cues.
Hello! I need help ASAP and no links
Answers
Answer:
A
Explanation:
There are 5 conditions of chemical changes which are Color change, Formation of a precipitate, formation of gas, change in odor, or change in temperature
What is needed for work to be done?
Answers
Answer:
In order for work to be done on an object, what must happen to the object? A force must be applied to the object and the object must move at least partly in the direction in which the force is applied.
Explanation:
Green anoles were forced out of their established habitat of trees, plants, walls and fences by invasive brown anoles. The green anoles then had to find new habitats in wetlands and tree crowns. This example illustrates the concepts of:
Answers
Answer:
both competition and realized niche
Explanation:
help meeeee?
write a description of the ecosystem including biotic and abiotic factors? plz
Answers
Answer:
The correct answer is - Biotic factors are any living factors and abiotic factors are anything non-living in an ecosystem.
Explanation:
An ecosystem consists of all living organisms, non-living organisms that are present in a physical environment in a particular geographical area. The physical environment consists of several factors such as landscape, pH, climate, salinity, and other factors that represent abiotic factors.
Any living organism present in an ecosystem is biotic factor Examples of biotic factors include are mammals, birds, trees, microbes, grasses, fish, bacteria, and many more.
 please answer quick and correctly
The rest of teh choices for number 3 is blood and carbon dioxide and for 6 the choices are to transport gases to protect internal organs to control movement or to transport fats
Answers
Answer:
Yes, you are right for both.
Help due soon I’ll give brainliest
Over half of the people in Cape Canaveral, Florida are
over the age of fifty. How is
this related to Florida's role in space research?
A)
The Kennedy Space Center only hires people who are over fifty years old.
B)
The Cape Canaveral communities offer free medical care for senior citizens.
Cape Canaveral has laws only allowing senior citizens to live in the
community
An entire generation of space-industry workers retired in the Space Coast
area.
D)
Answers
Answer:
B
Explanation:
After synapsis has finished are the chromosomes identical?
A. Yes
B. No
Answers
Answer:
Hello There!!
Explanation:
The answer is=>No.
hope this helps,have a great day!!
~Pinky~
Answer:
A. Yes
Explanation:
Hope it helps you in your learning process.
The two bar graphs show the average temperature and precipitation in a temperate climate, like you might find in most of the U.S.
Imagine you are on a trip to Brazil for the summer Olympics. How might the temperature graph differ in that climate?
Answers
Answer:
high temps all year
Explanation:
Answer:
High Temperatures all year!!
Explanation: