A scientist constructs a graph to show the age structure of the human population of Country Y. The graph is shown here.
What conclusion is supported by the graph?
a. The population is decreasing because there are fewer older members than younger members.
b. The population is relatively stable because there are fewer older members than younger members.
c. The population is relatively stable because the death rate is about the same as the birthrate.
d. The population is increasing rapidly because of the youth of the population.
Answers
Related Questions
The following diagram shows structures of three molecules produced by partial digestion of a fat, carbohydrate, or protein. They have about the same molecular weight and are shown in no particular order. Though all three molecules have similar molecular weights, they have different amounts of stored chemical energy. Based on the chemical structures of these molecules, by comparison, Molecule has the highest energy content.
Answers
Answer:
sorry but where is the diagram
Explanation:
explanation of gender in female
Answers
Answer:
Female means a women gender.
Explanation:
this is the correct answer you want .
Answer:
First off, chromosomes are thread like structures found in the nucleus of a cell containing genes, which determine a certain characteristic, and DNA which is the chemical that is the basic unit of inheritance.
All human cells ( excluding people who has cell abnormalities etc. ) contain 46 chromosomes. However there's this one pair of chromosomes called the sex chromosomes ( X and Y chromosome ) which defines whether the person is a make or female.
A male will have XY chromosomes, but a female will have XX chromosomes. That's how you differentiate.
How would transcription of the E. coli trp operon be affected by changing the two Trp codons in the leader peptide gene to His codons?
Answers
Answer:
The attenuation system would respond more to histidine (His) than to tryptophan (Trp) levels
Explanation:
In genetics, the attenuation system refers to the process of control which is responsible for triggering premature termination of transcription in bacterial operons. In bacteria, the process of attenuation is characterized by the presence of an attenuator, which is a stop signal sequence found in the leader mRNA. The tryptophan (trp) operon, which is a cluster of genes responsible to encode the components required during the production of tryptophan, is controlled by the attenuation system. When there is a high tryptophan level, the ribosomes are able to translate an attenuator sequence, thereby resulting in termination of transcription. The attenuation system also controls the synthesis of other amino acids including histidine (His), phenylalanine (Phe) and threonine (Thr).
traits in organisms are controlled by
A)trait factors
B)fertilization
C)genes
D)Elon Musk
Answers
No it’s C please don’t put Elon musk
Which representation of data visualizes potential relationships between variables?(1 point) a table a graph a chart a list
Answers
Answer:
A chart
Explanation:
A database management system (DBMS) can be defined as a collection of software applications that typically enables computer users to create, store, modify, retrieve and manage data or informations in a database. Generally, it allows computer users to efficiently retrieve and manage their data with an appropriate level of security.
A chart is a representation of data which visualizes potential relationships between variables. Some examples include pie chart, bar chart, etc.
A bar graph also known as a bar chart can be defined as the graphical representation of data (informations) by using vertical columns or rectangular bars. When a data set is observed, a bar chart can be used to graphically represent or record the total or overall amount of information contained therein. Generally, bar charts are used for the comparison of informations obtained from a data collection by representing each value (information) with rectangular bars respectively.
Answer:
A graph
Explanation:
Took the quick check xd :)
The amount of nitrogen in the atmosphere is affected by:
A) sewage treatment plants
B) inorganic nitrogen fertilizers
C)pollution from factories
D)all of the above
Answers
How many nucleotides are there in 5 codons?
Answers
Answer:
15 because one codon is three nucleotides
PLEASE ANSWER FAST!! :)
Which of the following biogeochemical cycles can be influenced by human activity and cause eutrophication of a local water supply?
nitrogen cycle
water cycle
oxygen cycle
carbon cycle
Answers
Answer:
A.
Explanation:
Nitrogen Cycle
Answer:
D
Explanation: Its either D or C but I think its D oxygen wont hurt water
The following changes in the US energy policy are recommended.
Use more natural gas to reduce reliance on imports.
Subsidize the use of alternative energy sources.
Evaluate the advantages and disadvantages of nuclear power.
Strongly promote conservation measures.
If these recommendations are adopted, which statement will describe the US energy policy?
A)
It is moving toward the hard-path or business-as-usual approach.
B)
It is moving toward the soft-path or visionary approach.
C)
It continues to take the hard-path or business-as-usual approach.
D)
It continues to take the soft-path or visionary approach.
Please select the best answer from the choices provided
Answers
Answer:
B
Explanation:
makes the most sense and its definitely not A or D
Answer:
B.) It is moving toward the soft-path or visionary approach
Explanation:
Got it right on Edge
How can humans interfere with the phosphorus cycle?
Answers
Answer:Humans affect the phosphorus cycle mainly by the use of fertilizers and raising livestock, especially hogs.
Explanation: Hope this helps:)
which statement about the Aqua culture industry in the US is true
Answers
Answer:
The true statement about the aquaculture is that It means “cultivating small acreages of land.”
How do trees remove carbon from the atmosphere ?
Answers
Answer:
Trees and including all plants use the energy of sunlight and including the process of photosynthesis they take with the carbon dioxide or know as ( CO2) from the air and water from the ground. In this process of converting this into wood they can relase oxygen into the air.
I hope this helps you .
What is most likely to happen if predators are introduced to an ecosystem with no known predators?(1 point) An increase in species migration. An increase in species differentiation. A decrease in species evolution. A decrease in species abundance.
Answers
Answer:
A decrease in species abundance.
Explanation:
(this was correct- connections academy)
if predators are introduced to an ecosystem with no known predators there is a decrease in species abundance.
What is the role of predators in the ecosystem?
Predators are an important part of a balanced ecosystem. Predators remove vulnerable prey, such as the old, injured, sick, or very young, leaving more food for the survival and success of healthy prey animals.
Also, by controlling the size of prey populations, predators help slow down the spread of disease.
Thus, if predators are introduced to an ecosystem with no known predators there is a decrease in species abundance.
To learn more about the ecosystem click here:
https://brainly.com/question/869877
After reading this paragraph, what
do you think the rest of the text will
be about?
It will explain the steps you take to
1) choose a career after volunteering
somewhere
It will describe where the closest
places to volunteer are located
It will show how different kinds of
volunteer work can be both fun and
rewarding
It will argue that volunteering is better
at an animal Shelter than in nature
Answers
Answer:
It will explain why the writer believes that volunteering is better at an animal shelter than in nature.
Explanation:
Typically if an opinion or claim is made then the writer will give his/her reasons.
A scientific investigation is replicable if
A.
the same investigation is conducted in two different laboratories by two different scientists and the same results are produced.
B.
one scientist performs many different experiments in his or her own laboratory.
C.
two different scientists perform different experiments in their own laboratories but they produce the same results.
D.
one scientist performs the same experiment in his or her own laboratory and different results are obtained.
Answers
Answer:
I believe the answer is d
Answer:
"the same investigation is conducted in two different laboratories by two different scientists and the same results are produced"
Explanation:
I just did this on study island and got it right!
a What is the other name for a microbe ?
Answers
Answer:
microorganisms, bacillus, bacterium, virus or germ
Answer:
microorganism
Explanation:
10 points! please help
Answers
Answer:
2,3,4,5
Explanation:
dnnsnsnszjjsnana
Which one of the following types of the tissue stores fat in the body?
A) cartilage
B) bone
C) adipose tissue
D) fibrous connective tissue
Answers
its c), adipose tissue.
Answer:
C) Adipose Tissue
Explanation:
Adipose Tissue stores fats in the body!!
Which is the relationship between photosynthesis and cellular respiration?
Cellular respiration makes the glucose that is needed by photosynthesis
Photosynthesis makes the glucose that is broken down by cellular respiration
Cellular respiration converts the glucose that is made by photosynthesis to oxygen.
Photosynthesis converts the glucose that is made by cellular respiration to carbon dioxide
Answers
20 POINTS
In the _____ the virus can reproduce so rapidly that it causes the cell membrane to disintegrate.
a lysogenic
b lactic
c lymphatic
d lytic
Answers
In the lytic cycle, the virus introduces its genome and replicates after that it assembles a new virus body and ruptures the cell membrane, hence option d is correct.
What are the lytic and lysogenic cycles?In a lytic cycle, the virus transfers its genome into a host cell and starts replication by seizing control of the host's cellular machinery.
When the infection is finished, the host cell is lysed, releasing the freshly duplicated and assembled virus particles into the surrounding waters.
The virus replicates by integrating its genome with the genome of the host cell during the lysogenic cycle, which is also known as a non-virulent infection.
Therefore during the lytic cycle, the virus-cell membrane is disintegrate and the lysogenic cycle happens without killing the host, hence option d is correct.
Learn more about viruses, here:
https://brainly.com/question/1145533
#SPJ2
HELP PLEASE
When Earth, the moon, and the sun align, which order would lead to a solar eclipse? (1 point)
A. sun–Earth–moon
B. moon–Earth–sun
C. sun–moon–Earth
D. moon–sun–Earth
Answers
Answer:
C. sun-moon-Earth
Explanation:
For a solar eclipse to occur, the moon must be between the sun and Earth.
When Earth, the moon, and the sun align, the correct order that leads to a solar eclipse is sun–moon–Earth. Thus, the correct option for this question is C.
What is a Solar eclipse?The Solar eclipse may be defined as a type of natural phenomenon that involves the passage of the moon between the sun and the earth. As a result of this, it obscures the Earth's view from the Sun either partially or completely.
The correct order of the solar eclipse clears one thing with respect to the actual location of the moon is always found between the sun and the earth. Now, among the options given, only option C matches this required instance.
Therefore, the correct order that leads to a solar eclipse is sun–moon–Earth. Thus, the correct option for this question is C.
To learn more about the Solar eclipse, refer to the link:
https://brainly.com/question/1077760
#SPJ6
Evaluate whether two places at the same altitude would have the same climate.
Answers
Answer:
Places at the same latitude may have very different climates if one is on a coast and one is inland. On the coast, the climate is influenced by warm moist air from the ocean. Farther inland, the climate is influenced by cold or hot air from the land. So, it depends on where you are on the world.
The LD50 for arsenic in humans is 13mg/kg. Which of the following approaches should be used to
calculate the number of grams of arsenic it would take to reach the LD50 in a 140-pound person?
Answers
Answer:
B
Explanation:
ap classroom
It would take 0.827 g of arsenic to reach the LD50 in a 140-pound person.
The lethal dose 50 (LD50) for arsenic in humans is 13 mg/kg.
What is the LD50?LD50 is the amount of a material, given all at once, which causes the death of 50% of a group of test animals.
To calculate the number of grams of As that it would take to reach the LD50 in a 140-lb person, we need to convert 140 lb to kg using the conversion factor 1 lb = 0.454 kg.
140 lb × 0.454 kg/1 lb = 63.6 kg
The LD50 of As is 13 mg of As per kg of body mass. The mass of As to reach the LD50 in a 63.6-kg is:
63.6 kg BM × (13 mg As/1 kg BM) × (1 g As/1000 mg As) = 0.827 g As
It would take 0.827 g of arsenic to reach the LD50 in a 140-pound person.
Learn more about LD50 here: https://brainly.com/question/8136561
. In your own words, define a compound light microscope.
Answers
A compound light microscope is a microscope with more than one lens and its own light source. In this type of microscope, there are ocular lenses in the binocular eyepieces and objective lenses in a rotating nosepiece closer to the specimen.
What spheres are affected by pesticides? Is the atmosphere, geosphere, hydrosphere, and biosphere affected by pesticides?
Answers
What might happen to the cell if it were suddenly unable to use lipids?
A. It would not be able to make proteins or transfer substances to other cells
B. would not be able to transfer genetic information to other cells
C. It would not be able to store energy or communicate with other cells
D. It would not be able to store water or protect itself from viruses
Answers
Explanation:
I don't know the exact answer but I can tell you that lipids are considered the building blocks of cells . the body uses lipids as a storage for energy and insulation and to make cell membranes. without lipids the cell will die . the way lipids function is .... lipidsfunction as an energy reserved regulate hormones transmit nerve impulses cushion vital organs and transport fat soluble nutrients.
I hope this can help you a little bit good luck!
Answer:
B
Explanation:
Lipids are used to store information.
20. Dominant inheritance: Pattern of inheritance in which, when an individual receives contradictory
alleles for a trait, only the dominant one is
Answers
Answer:
Only the dominant one is expressed.
Two rough black guinea pigs when bred together have two offspring. One of them is rough white and the other is smooth black. What are the genotypes of these parents?
Parent 1 __________ Parent 2 ___________
Answers
Answer:
Parent 1 = RrBb
Parent 2 = RrBb
Explanation:
This question involves two genes in guinea pigs. The allele for rough coat (R) is dominant to smooth coat (r), and the allele for black coat (B) is dominant to white coat (b).
According to this question, two rough black guinea pigs when bred together produced two offsprings. One of the offsprings is rough white (R_bb) and the other is smooth black (rrB_). This means that, to produce such offsprings, the parents must be both heterozygous for both genes (RrBb). Please find the punnet square for this cross attached
where do plants get their energy from for photosynthesis to occur? water, sunlight, oxygen, or food(glucose)
Answers
Answer:
Sunlight and Water
Explanation:
Plants can make food from absorbing sunlight
A wave transfers _____?
Answer: energy
Answers
Answer:
Kinetic energy
Explanation:
Hope that helps