Over various spans of time, human populations have increased, decreased, or remained the same, and at both global and local levels. Which statement best explains this observation?

Answers

Answer 1

Answer:

C. Like other populations, the human population is affected by a variety of factors in the environment

Note: The options are found in the attachment below

Explanation:

Factors that affect population in the natural world include; availability of food, water, shelter, space, competition for resources, predation, as well as disease.

These factors also affect human population resulting in an increase, decrease or stability in population.

Regarding decrease in population, factors like competition for scarce resources has resulted in wars which greatly reduced human population. Also disease outbreaks, droughts, famines, etc have resulted in decrease in population.

Availability of food, water, shelter and space on the other hand makes for an increase in population by increasing the birth rate, reducing competition and bringing stability.

In some other instances, overtime, there is a balance between birth and death rate, so human population will remain relatively unchanged at these times.

Over Various Spans Of Time, Human Populations Have Increased, Decreased, Or Remained The Same, And At

Related Questions

What is the difference between abiotic and biotic?

Answers

Answer:

Abiotic factors refer to non-living physical and chemical elements in the ecosystem. ... Examples of abiotic factors are water, air, soil, sunlight, and minerals. Biotic factors are living or once-living organisms in the ecosystem. These are obtained from the biosphere and are capable of reproduction.

Explanation:

When an antigen attacks the body, it activates adaptive immunity. This adaptive immunity produces a strong response when it encounters the same antigen for the second time. Which feature of adaptive immunity is essential for this kind of response?

Answers

Answer:

A) the ability to remember the antigen it encounters

Adaptative immunity reacts in a more general way producing nonspecific antibodies against the foreign antigen when the organism is first attacked by that foreign antigen. The second time around, when the organism is faced again with the same foreign antigen, it produces a much stronger response because it memorised the antigen and is not strange anymore so the response can be more specific, quicker, and effective.

Explanation:

Answer:

Explanation:

memory T cells plays an important role in fighting against microbe which encounter the body for second time

should a business owner be more interested in making money or doing what they are passionate about?why?

Answers

Answer:

passion

Explanation:

a business owner should be interested in doing what they are passionate about because if they like something they will make more money and more customers will be attracted to their new project

Which two elements are always found in amino acids?

Answers

Answer:

carbon and oxygen

Explanation:

hope this helps :)

Photosynthesis

Use respiration in a sentence.

Answers

Answer:

Cellular respiration produces the energy cells need to function, in the form of ATP.

Explanation:

Check Concepts
41. Using the scientific definition, which state-
ment is always true of work?
A) It is difficult.
B) It involves levers.
C) It involves a transfer of energy.
D) It is done with a machine.

Answers

Answer: C. It involves a transfer of energy.

Using the scientific definition, the statement that is always true of work is it involves a transfer of energy. The correct option is C.

What scientific theories?

Scientific theories are the theories that are given by scientific facts and information. These theories are based on observation of natural things and places.

There is the transfer of energy in the natural world. Every organism and plant is connected with each other in the form of a transfer of energy. This is called a food chain.

In the food chain, the organism is divided into different levels. These levels are based on their food. They are autotrophs, heterotrophs, and decomposers. Autotrophs have the largest amount of energy.

Thus, the correct option is C) It involves a transfer of energy.

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1. What is the function of the cell membrane? ___________________________________________
2. Explain how the cell membrane maintains homeostasis. ___________________________________
__________________________________________________________________________________

Answers

Answer:

Proteins in the cell membrane include cell-surface markers, receptor proteins, enzymes, and transport proteins.

One is to transport nutrients into the cell and also to transport toxic substances out of the cell.

Explanation: I hope this helps

When experiencing oxygen debt, why do human cells not carry out the process of alcoholic fermentation?

Answers

I believe the answer is because oxygen is a fuel/input/reactant to alcoholic fermentation.

Which of the following substances is responsible for transporting materials into and out of the cell by active transport? A. Carbohydrates B. Proteins C. Cholesterol D. Lipids

Answers

Proteins. Qqqqqqqqqqqqq

Which example has the most kinetic energy a football resting on a kicking tee a hurt football player sitting on the bench a football flying through a goal post a penalty flag on the ground

Answers

Answer:

The football flying through the goal

Explanation:

Kinetic energy is basiaclly moving energy. Since only the football going through the goal is moving, that's the one with the most kinetic energy.

please help me, i dont like this

Answers

Answer:

the answer is true because plant can be infected

by parasitic

sorry if wrong

Answer:

This is true.

Explanation:

Some plants are parasitic, which means they do not make their own food. They do, however, steal necessary water and minerals from other plants, often killing the other plants off. Parasitic plants sometimes do have chlorophyll, and others do not.

What is an example of malignant tumor?

Answers

Answer:

Carcinoma.

Explanation:

These tumors form from epithelial cells, which are present in the skin and the tissue that covers or lines the body's organs. Carcinomas can occur in the stomach, prostate, pancreas, lung, liver, colon, or breast.

find the solution to the equation
[tex] {x}^{2x} - 5x {}^{2} + 4 = 0 \\ [/tex]

Answers

Here you go, hope it helps

An example of a macromolecule is a(n)
a.oxygen atom
b.monosaccharide
c.glucose molecule
d.polysaccharide

Answers

both answers b and d are macromolecules so either one would be correct. personally i would put b

I can say it is not a because that is a “regular” molecule

I need help on this I am confused

Answers

Answer:

I don't see the last image after the snake. Anyway, I would say C because the Snake would eat more Toads, so Snake population would increase.

Where does the carbohydrate reside ? Where is it found in cells ? What types of food is it found in ?

Answers

Carbohydrates are the sugars, starches and fibers found in fruits, grains, vegetables and milk products. Though often maligned in trendy diets, carbohydrates — one of the basic food groups — are important to a healthy diet.

b) Identify a dependent variable in the experiments. Identify the reasoning of the scientists when they tested the number of colonies produced by strains C3-PBB and C6-PBB . The scientists also analyzed the number of colonies produced from each of the environmental and clinical isolate strains when the strains were plated on a growth medium lacking the toxic chemical. Justify this analysis.

Answers

A dependent variable is the number of colonies produced. The experiment gives a useful insight into the toxicity of the chemicals.

A scientific experiment must always have a dependent and an independent variable. A dependent variable is the variable whose outcome is being determined by manipulating the independent variable which in this case is the presence or absence of the chemicals.

Toxicity of chemical substances is a very important information to scientists as such this experiment is very important because it highlights the toxicity of the chemicals to living things.

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If one strand of the DNA molecule had the sequence "ATTGCTC," what will be the sequence of the complimentary strand across from it?

Answers

Answer: It will be [TAACGAG]

Explanation:
Adenine levels with thymine
Guanine levels with cytosine
This is the rule for DNA bases by the schientest Erwin Chargaff

DNA and RNA are both types of —
A. enzymes
B. polysaccharides
C. proteins
D. nucleic acids

Answers

both DNA & RNA are the main types of nuclei acids so D

Answer:
D. DNA and RNA are both types of nucleic acids

*Psychology* Which IQ range indicates moderate mental ***********?
A.
70–79
B.
52–69
C.
36–51
D.
20–35
E.
19 or below

Answers

Answer IS CORRECT C 36-51

Explanation:

PLATO GANG

The IQ range that indicates moderate mental *********** is A. 70-79.

What is an IQ?

IQ stands for Intelligence Quotient and is a measure of cognitive abilities and intellectual potential. It is determined through standardized tests that assess various cognitive skills, including problem-solving, memory, and analytical thinking.

The average IQ score is set at 100, with scores ranging from 70 to 130 considered to be within the normal range. Scores below 70 indicate varying degrees of intellectual disability, while scores above 130 suggest above-average intelligence.

While IQ scores can provide insight into a person's cognitive abilities, they do not account for other factors, such as emotional intelligence or creativity, that may contribute to overall success in life. It is essential to recognize that IQ tests have limitations and should not be used to label individuals or limit their potential.

This range is considered to be a mild to moderate intellectual disability, indicating limitations in adaptive functioning and potential need for support in daily life activities.

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Which part of the cell theory most aligns with the process of Mitosis?

Answers

Answer:

cell division

Which of the following can be used to move a sperm cell?
A. flagella
B. cell wall

Answers

Not sure but I’m pretty sure it’s flagella

Answer:

A.flagella

Explanation:

the flagella is the organelle that moves the cell

plz mark me as the brainliest

Examples of ovoviviparous animal

Answers

Answer:

sharks, rays, snakes, fishes, and insects

Explanation:

These ovoviviparous animals produce eggs, but instead of laying eggs, eggs develop inside the mother's body. The eggs are laid in the mother. After rocking, they stay in the mother for a while and feed there. Then the young are born live.

Ovoviparity is, therefore, a mixture of oviparous (animals that lay eggs) and viviparous (animals that develop in the mother’s body).

The Krebs cycle, fermentation, electron transport, and the breakdown of starch are
processes of respiration. Which process could take place within an airtight bottle that
contained no oxygen?
A.aerobic respiration
B. Krebs cycle
C. fermentation
D. electron transport

Answers

The answer is c fermintation

two liquids that are at two different temperatures are added to each other in a container is closed . The temperature is taken at one-minute intervals .

Answers

Answer: Graph A

Explanation:

Which is the region of actively dividing
cells at the tip of the stem?

Answers

Answer:apical meristem

Explanation:

Inherited genetic variations are caused and influenced by environmental factors only. Factors like an organism’s habitat conditions and behavior can affect variation within a population. PLEASE EXPLAIN HOW ENVIRONMENTAL FACTORS EFFECT GENETIC VARIATION! WILL MARK BRAINLIEST!!

Answers

Answer:

Genetic variation among plant populations often occurs along different climatic gradients, such as temperature and precipitation gradients. Environmental factors are often responsible for the patterns of genetic structure observed at small spatial scales

Explanation:

1980g = __kg
A. 198 B.1.98 C.19800 D.19.8

Answers

Answer:

1.98 kg

Explanation:

state the doctorine of original evolution.

Answers

Answer:

because it is life

Explanation:

How do we detect the cosmic microwave background radiation?
by looking for radiation at the blue end of the spectrum

through radio telescopes

by looking for a glow in the night sky

through magnifying glasses

Answers

Answer:

Through radio telescopes :)

Explanation:

Answer:

through radio telescopes

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