List three factors that account for the rapid growth of the world's human population over the past 200 years.

Answers

Answer 1

Answer:

In the 1960s, China's large population was growing so rapidly that there was a serious threat of mass starvation.

• The government established the world's strictest family planning and birth control program, promoting one-child families and provides contraceptives, sterilizations, and abortions for married couples.

• Married couples pledging to have no more than one child receive a number of benefits including better housing, more food, free health care, salary bonuses, and preferential job opportunities for their child.

• Between 1972 and 2011, the country cut its birth rate in half and trimmed the average number of children born to its women from 5.7 to 1

Explanation:


Related Questions

A change in DNA could alter the amino acid order which will affect the folding of the protein, and therefore it's function. True or false

Answers

Answer:

true

Explanation:

amino acids are complex macromolecoules therefore it would alter the genetic structure of the compound thus changing its dna

This is a true !Hope im not too late

Describe how rodent and human skeleton's are similar in structure and function.
Please help, ill give brainliest:))))

Answers

Answer:

Both a human and rodent skeleton have skulls, but they aren't much alike. Both the human and rodent skeleton need calcium to keep their bones strong. Both a human and rodent skeleton have 24 ribs, these are used to protect vital organs.

Someone please help me

Answers

it’s c) volume
:)) hope this helps

Answer:

I'm pretty sure it's volume

Can you help me with this please it’s science

Answers

Answer:

A

Explanation:

a

A- because most everything is science is changing and has been changed through new technologies

What is oxygen and how would you describe it ?

Answers

Answer:

Oxygen is a colourless, odourless, tasteless gas essential to living organisms, being taken up by animals, which convert it to carbon dioxide; plants, in turn, utilize carbon dioxide as a source of carbon and return the oxygen to the atmosphere.

Which of your cells has allof your DNA code?
Only hair cells
All of your cells
Only brain cells
Heart and skin cells

Answers

Answer:

answer is all of your cells because DNA is present all

in all places

Round (R) is dominant over wrinkled (r) and
Green (Y) is dominant over (y) yellow. Cross the
following and express the phenotypic and
genotypic ratios. RrYy and rrYy

Answers

R r
Y RY rY
y Ry ry

The 4 in the middle are the genotypes and the phenotypes are Round green, wrinkled green, round yellow, wrinkled yellow

29. Which of the following occurs throughout most
of a star's lifetime?
A. matter ejection
B. gas contraction
C. heavy core formation
D. nuclear fusion

Answers

Answer: Nuclear fusion
Reasoning: most of a stars life is in the main sequence phase. This is the phase where nuclear fusion turns hydrogen into helium.

What impact could artificially raising the carrying capacity have on the deer
population long term?

Answers

Answer:

Deer population increases.

Explanation:

Deer population increases if increasing occur in carrying capacity of an ecosystem by artificial means because more food, water, shelter and other resources are available to the deer due to increasing carrying capacity of an ecosystem. If food, water and shelter are available in large amount to the deer so they reproduce rapidly and increase occur in their population.

Someone please help me

Answers

Answer:

its c do that to

Explanation:

Answer: Grams is not a unit of volume its a unit of mass

Many plants tend to wilt on a hot, sunny day. The most likely cause of this wilting is ​

Answers

Answer:

Maybe due to the fact of plant diseases wich causes the plants to wilt and discolour

Cause of the wilting is Loss of water

What is the wavelength of a wave with a frequency of 330 Hz and a speed of
343 m/s?

Answers

Answer:

1.039m

Explanation:

s=f*λ

s=speed of wave(m/s)

f=frequency of wave(Hz)or(s^-1)

λ=wavelength

343m/s=330Hz*λ

λ=[tex]\frac{343m/s}{330s^{-1} } =1.039m[/tex]

Answer:

1.04

Explanation:

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Help me ASAP


What happens to the actin and myosin during a muscle contraction?

•The actin filaments push against the myosin filaments, making the myosin filaments smaller

•The actin filaments are forced inward by the flexing of the muscle

•The myosin filaments remain in place as they pull the actin filaments inward

•The myosin filaments compress the actin filaments, making the actin filaments smaller

Answers

Answer:

C, The myosin filaments remain in lace as they pull the actin filaments inward

Explanation:

Muscles contract when the heads on the myosin filaments latch onto the actin filaments, drawing them inward. As a result, the entire sarcomere shortens, resulting in a muscle contraction.

The myosin filaments remain in place as they pull the actin filaments inward. The correct option is C.

Thus, Actin filaments are drawn inward as a result of the myosin heads cycling and attaching to fresh binding sites, which causes the muscle to contract.

Multiple sarcomeres within muscle fibres engage in this process simultaneously, which causes the entire muscle to contract.

In conclusion, during muscle contraction, actin filaments are actively pulled inward by myosin filaments, specifically the myosin heads, by the sliding filament mechanism. Muscle contraction and movement depend on the coordinated action of myosin and actin filaments.

Thus, The myosin filaments remain in place as they pull the actin filaments inward. The correct option is C.

Learn more about Myosin, refer to the link:

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Please help! Need it for my homework

Answers

Answer:

melanocortin 1 receptor

Explanation:

The MC1R gene provides instructions for making a protein called the melanocortin 1 receptor. This receptor plays an important role in normal pigmentation. The receptor is primarily located on the surface of melanocytes, which are specialized cells that produce a pigment called melanin.

hope it's help

which of the following is found in a plant cell but not in an animal cell

Answers

Answer:

A cell wall can be found in a plant cell but not an animal cell

Using the Gizmo, find a carbon atom path from the atmosphere to the cement plant. (Hint:
One of the ingredients in cement is limestone.)

Path:

Answers

Answer:

Path: Atmosphere -> Ocean -> Shells -> Limestone -> Cement Plant  

The path of a carbon atom is - air, ocean, shells/coral reef, limestone, cement plant.

Cement is manufactured through a closely controlled chemical combination of calcium, silicon, aluminum, iron, and other ingredients.

Common components used to manufacture cement include limestone, shells, and chalk or marl combined with shale, clay, slate, blast furnace, silica sand, and iron ore.Limestone form the coral reefs that are massive structures deposited by coral polyps.Coral reefs get their carbonate from the ocean that comes from air Carbon in limestone is produced in a cement plant when heated to make calcium oxide. The waste product is carbon dioxide.

Thus, the path of a carbon atom is - air, ocean, shells/coral reef, limestone, cement plant.

Learn more about:

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produce the eggs or ova​

Answers

Explanation:

yes produce the eggs and ova

The ovaries produce the egg cells, called the ova or oocytes.

Which process is responsible for the loss of biomass at each level of the ecosystem

Answers

Answer:

The correct answer is - excretion

Explanation:

In any ecosystem, there is a loss of biomass and energy at each level of the energy pyramid or trophic level. Biomass and energy both lost due to completing the life processes.

All the biomass is eaten at each level as not all food they take completely digested and removed by the process of excretion in various forms such as solid feces, carbon dioxide, and water in respiration and water and urea in urine.

For a particular trait, the allele C is dominant over the allele c. The Punnett square below shows
the genetic
С
с
Сс
ССС
ccc
CC
6. What percentage of the offspring will show the phenotype of the dominant and
recessive allele?
A. 50% will show the phenotype of the dominant allele and 25% will show the
phenotype of the recessive allele.
B. 75% will show the phenotype of the recessive allele and 25% will show the
phenotype of the dominant allele.
C. 75% will show the phenotype of the dominant allele and 25% will show the
phenotype of the recessive allele
D. 100% will show the phenotype of the dominant allele and 0% will show the
phenotype of the recessive allele.

Answers

Answer:

C. 75% will show the phenotype of the dominant allele and 25% will show the

phenotype of the recessive allele

Explanation:

on the punnet square you can see that 3/4=75/100 of the individuals have the dominant allele so they will manifest the dominant phenotype the other 25% don't have the dominant allele

75% will show the phenotype of the dominant allele and 25% will show the phenotype of the recessive allele.

What is Punnett square?

An illustration of the potential genotypes of an offspring resulting from a specific cross or breeding event is called a Punnett square. Knowing the parents' genetic make-up is necessary to create a Punnett square. They have tabular representations of the different conceivable combinations of their gametes.

The underlying presumption is that different qualities assort independently from one another and that each feature is determined by a single gene locus. There are numerous exceptions, even if this is generally true for many beneficial qualities, particularly when picking characters for plant or animal breeding.

This device was developed in the 20th century, many years after Mendel's groundbreaking genetics experiments.

Therefore, 75% will show the phenotype of the dominant allele and 25% will show the phenotype of the recessive allele.

To learn more about genotypes, refer to the link:

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what should be done to preserve the forest​

Answers

Answer:

To preserve the forest:

one should take part in awareness program

there should be a increase in afforestation

people should be careful with crackers and fire

People should be educated and aware of the things that can happen if trees are cut daily

Hope it helps:)

The interaction among animals of the same species is called courtship.


Please select the best answer from the choices provided

T
F

Answers

The definition of courtship is "the behavior of male birds and other animals aimed at attracting to a mate"

So yes, the answer is true.

Name two processes that require energy from ATP.

Answers

1) intracellular signalling
2) DNA and RNA synthesis

can someone please help me out on this :,,,) I’ll fail if I get this wrong

Answers

Answer:

1. plant chlorophyll

2. energy 3.molecules 4.oxygen 5.carbon dioxide 6.hydrogen 7. sugar molecules

Does mitosis occur in all organisms?

Answers

Answer:

Mitosis happens in all eukaryotic cells (plants, animals, and fungi). It is the process of cell renewal and growth in a plant, animal or fungus. ... Mitosis is also important in organisms which reproduce asexually: this is the only way that these cells can reproduce

Explanation:

It happens in all eukaryotic cells so no cause there are organisms made of prokaryotic cells such as bacteria and archaea :)

In humans, hemophilia is sex linked. If a woman is a carrier for the trait, what is the chance that her daughters will also be carriers? (Assume their father is normal.)

Answers

There is a 50% chance the daughters will be carriers of the trait.

The little x on the diagram I drew represents the trait.

Find an
equivalent ratio in simplest terms
90 : 14

Answers

Answer:

45:7

Explanation:

Select all that apply.
During melosis II:
chromosomes line up along the middle plate in double file
genetic variation results from crossing over
two diploid daughter cells are formed
sister chromatids split
four haploid daughter cells are formed

Answers

Answer:

chromosomes line up along the middle plate in double file

sister chromatids split

four haploid daughter cells are formed

Explanation:

Crossing over or recombination is the interchange of genetic material between non-sister chromatids. This process (crossing over) occurs during the prophase of meiosis I. Meiosis II is the second meiotic division that involves the separation of sister chromatids. In metaphase II, the centromeres of paired chromatids align on the equatorial plate of each daughter cell to be subsequently separated in anaphase II. At the end of meiosis II, four daughter cells are formed (i.e., four gametes), each with the same haploid number of chromosomes.

Match each precipitation type with its image.

Snow
Hail
Sleet
Rain

Answers

Answer:

snow C

hail D

sleet A

rain B

Answer:

Snow is C, Hail is D, Sleet is A, Rain B.

Explanation:

hoped it helped!!

_______measure air temperature and _______measure air pressure.​

Answers

Thermometer — barometer

Answer:

thermometer and barometer

Explanation:

because

a thermometer has a dry bulb that measures the air temperature

and

the most common instrument used to measure air pressure is a barometer

Which one is Convection? Warm air rising, Heat from an old-fashioned radiator, Batteries, and Touching a stove and burning your hand WHich one is it???????

Answers

Answer:

mnhjvcfhvnbkjhjgvhn bm,ljhgfvjbmn,jhkgjfvnb mn,jhkgjfhcvb nbvcgfmhjbk

Explanation:

stove burning your hand
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