Deana is studying the table shown here, which lists the birthrate and death rate for several countries.
Country Birthrate
(per 1000 People) Death Rate
(per 1000 People)
Brazil 14.7 6.1
Cambodia 24.1 6.1
Italy 8.3 9.8
Mali 43.5 10.5
Venezuela 19.6 5.5
Deana applies the data in the table to calculate the rate of population increase or decrease of each country.
Which assumption is necessary for Deana’s calculations to be accurate?
A. The immigration and emigration rates of the countries are insignificantly small or approximately equal.
B. The immigration rates of the countries are much higher than the emigration rates.
C. The immigration rates of the countries are much smaller than the emigration rates.
D. The population is evenly distributed between rural, suburban, and urban areas.
In order to use only the birth and death rates to calculate the rate of population growth or decrease of a country, the immigration and the emigration rates must either be insignificant or approximately equal.
Population growth rateThe growth rate of a population is determined by the following equation:
Growth rate = (Birth rate - death rate) + (Immigration - Emigration)
Thus, if immigration is more or less equal to emigration or both factors are insignificantly small, the difference between the birth and death rates can be used to estimate the population growth.
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How do organisms acquire the energy they need to live?
Organisms generate their own energy to live.
Organisms acquire energy from the temperature of the Earth.
Organisms acquire energy from hydrolysis.
Organisms capture energy from the environment
Which region of the brain receives sensory information after processing and then issues motor output?.
Answer: The Cerebellum
I hope this helps
What is the structural relationship between glucose and galactose?.
Answer:
They are both ald.open.toses.
Explanation:
Please help! Due in 5 minutes!
An articulated specimen refers to
A. a skeleton that is intact.
B. a skeleton undergoing mechanical preparation.
C. a skeleton treated with iron reduction.
D. a skeleton that is incomplete.
Answer:
A. a skeleton that is intact
Explanation:
Answer:
A
Explanation:
Please Help!
What is the approximate temperature and altitude of the tropopause, stratopause, and mesopause?
Answer:
tropopause: about 12-18 km about –60 stratopause: about 46-54 km about –2 to 0 mesopause: about 85-90 km about –90 4
Explanation:
Answer:
tropopause: about 12-18 km about –60
stratopause: about 46-54 km about –2 to 0
mesopause: about 85-90 km about –90
Explanation:
1. Which of the following correctly pairs a cellular structure with its function?
(A) Nucleus .. protein folding
(B) Chloroplast.. photosynthesis
(C) Peroxisome. . glycolysis
(D) Flagellum.. mitosis
(E) Mitochondrion .. secretion
What is the right answer?
Answer:
I believe the correct answer is c
One popular attraction in Austin, Texas is a spring-fed swimming area called Barton Springs Pool. The pool is fed by the Barton Spring which is fed by the Edwards Aquifer. Since the 1980s, the pool is occasionally closed due to high bacteria levels. Which is the BEST explanation for the source of bacterial contamination?
The explanation for the source of bacterial contamination will be "a housing development with septic systems was built in the Barton Creek watershed."
What is bacteria?Generally, Bacteria are germs that possess mono-cell structure and has them more in comparison to other organisms.
In conclusion, In the Barton Creek watershed, a housing complex with septic systems was created.
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What is the main difference between your ventricles and your atria?.
Answer:
The two atria are thin-walled chambers that receive blood from the veins. The two ventricles are thick-walled chambers that forcefully pump blood out of the heart.
Explanation:
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A group of environmental activists want to reduce the effects of global warming. What actions should they promote to achieve their goal?
Answer:
the answer is C. Use alternate energy sources
Explanation:
on Edmentum i did the test, it was correct
what is cell? and who discover it?
Answer:
The cell was first discovered and named by Robert Hooke in 1665. it is the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body. A cell has three main parts: the cell membrane, the nucleus, and the cytoplasm.
Explanation:
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PLEASE HELP I NEED THIS DONE!!!! 60 POINTS!!!!
Answer:
Below
Explanation:
1. Sedimentary rock
2. Metamorphic rock
3. Magma
4. Igneous rock
5. Weathering and Erosion Ign.
6. Weathering and Erosion Met.
7.Weathering and Erosion Sed
8. Compaction and Sedimentation.
9. Heat and pressure Sed.
10. Heat and pressure Ig
11. Melting
1. Sedimentary Rock
2. Metamorphic Rock
3. Magma
4. Igneous Rock
5. Weathering & Erosion (Ig)
6. Weathering & Erosion (Met)
7. Weathering & Erosion (Sed)
8. Compaction & Cementation
9. Heat & Pressure (Sed)
10. Heat & Pressure (Ig)
11. Melting
12. Cooling & Hardening
Hope this helps!
The above diagram illustrates how nature recycles what natural resources?
The diagram illustrates how nature recycles carbon through the various spheres of the globe.
Carbon cycleThe diagram illustrates the cycling of carbon.
Carbon is an important element in nature and cycles through various spheres of the globe.
One of the reservoirs of carbon is the atmosphere - it exists as carbon dioxide. The supply in the atmosphere is maintained by burning, respiration and decay of living organisms, volcanic eruption etc.
Carbon is fixed into living organisms (the biosphere) via photosynthesis.
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Roads are often built through forests for industrial purposes or as land is developed for residential and commercial needs. How would road construction through a forest most likely affect the ecosystem?.
What is the relationship between a gene and an operon.
Answer:
An operon is a segment of DNA containing a cluster of genes, which are all under the control of a single promoter and the same regulatory elements. The genes in an operon get transcribed together into a single mRNA strand and therefore undergo the same transcriptional regulation.
hope it helps
Which two animals are used to develop the idea of “special survival tricks”?
A. turtles and birds
B. insects and lizards
C. kangaroo rats and camels
D. snakes and small mammals
Answer:
A. Turtles and birds
Explanation:
Turtles use their shells to protect themselves from predators and birds use flight to escape
Why does fossil fuel use in the united states make the u.s. vulnerable to the political wishes of foreign countries? a. the us is a net exporter of fossil fuels. b. fossil fuels lead to global climate change. c. the us imports much of its petroleum from foreign countries which set the prices. d. all of the above. please select the best answer from the choices provided a b c d
The US imports much of its petroleum from foreign countries which set the prices.
What are fossil fuels?The trem fossil fuels refers to those fuels that are obtain from carbon by mining sucg as coal, crude oil and natural gas. The US often imports a large quantity of these fossil fuels friom other countries.
Hence, the US is vulnerable to the political wishes of foreign countries because, the US imports much of its petroleum from foreign countries which set the prices.
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#SPJ4
Answer:
C
Explanation:
look at the pic :)
PLEASE ANSWER ASAP: In the food chain- grass ---> grasshopper ----> bird ------> snake
Who would be affected the most?
Answer:
All would be affected but the snake would probably be most effected
Explanation:
If the bird was removed from the chain, the snake would have no valid food source leading to a decrease in population for the snakes.
Although the population of the grasshopper would increase because there is no birds to eat the grasshoppers the snake would probably still be most affected because they would all die off as they would have no valid food source
The ______ muscles compress the cheeks against the teeth to hold solid materials in place during chewing.
The buccinator muscles compress the cheeks against the teeth to hold solid materials in place during chewing.
The buccinator plays a very vital function in the mouth, it helps to hold the cheeks very close to the teeth while eating. It is found in both sides of the cheeks.
Without the buccinator, it would be very difficult to chew food, smile, whistle. It also helps the tongue to properly roll up food particles into bolus.
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Explain how scientists foresee the fuel being used?
Answer:When biomass is harvested and processed, scientists can break down and convert the plant cells into renewable fuels or chemicals.
Explanation:
Which of the following is NOT a true statement about organs?
A) An organ represents a higher level of structure than the tissues composing it.
B) An organ consists of several tissues.
C) An organ can carry out only the functions of its component tissues.
D) An organ consists of many cells.
Sensory receptors convert _____ into _____ by signal transduction.
Sensory receptors convert stimulus into electrical signals by signal transduction.
What is sensory receptors?.Sensory receptors are found in specialized organs such as the eyes, ears, nose, and mouth, as well as internal organs. Each receptor type transmit stimulus or sensory modality which is interpreted to electrical signal and into a single perceptual frame eventually.
Therefore, Sensory receptors convert stimulus into electrical signals by signal transduction.
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Based on the pyramid and what you know about iron, do you think you get
enough iron in your diet?
Answer:
Iron and area in the goal
Other photo for bill he video
A woman who is a hemophiliac has a normal daughter. What is the daughter’s genotype? Show
your work with a Punnett square.
Answer:
I found this on the internet so chang some of the word.
Explanation:
Daughter's genotype is XHXh (She got the Xh from her father. She has a normal phenotype, so we know her other allele is XH. A)
Use the resources provided to either describe in words OR create a model that describes at least 4 reasonable factors that might influence the carrying capacity of Nubian ibex in Israel.
Poaching, division of populations, loss of habitat and water availability affects the carrying capacity of Nubian ibex.
Factors affecting carrying capacityPoaching, division of populations, loss of habitat and water availability are the factors that greatly influence the carrying capacity of Nubian ibex at a particular region because these factors are the requirement of this organism for its survival.
So we can conclude that Poaching, division of populations, loss of habitat and water availability affects the carrying capacity of Nubian ibex.
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What is an enzyme and what is biochemistry and what is enzyme theory?
An enzyme is a protein which acts as a biological catalyst. Biochemistry is the study of chemical processes within or related to living organisms and enzyme theory is the different theories on how enzymes work, either with 'lock and key' method or enzyme-substrate complex theory.
I have to answer these questions with these graphs made how do i answer them
Answer:
A line graph is also used when there are two variables—but only makes sense when you're tracking changes over a continuous measurement (e.g., time, temperature, distance). Line graphs are especially useful for illustrating direction (i.e., peaks and dips) rather than magnitude.
Line graphs are used to track changes over short and long periods of time. When smaller changes exist, line graphs are better to use than bar graphs. Line graphs can also be used to compare changes over the same period of time for more than one group.
The model shows what happens to chromosomes during a certain part of the cell cycle
A.Metaphase
B.Interphase
C.Telophase
D.Anaphase
In which form is most carbon dioxide transported in the blood?.