Which of the following best describes the difference between population size and population density?

A. Population density measures the abundance of an organism, whereas population size measures the distribution

B. Population size measures the abundance of an organism, whereas population density measures the distribution

C. Population size measures abundance, but population density measures how rapidly the size changes

D. Both variables measure abundance, but population density takes the into account the size of individuals, not just the number of individuals in the population

E. None of these descriptions are correct

Answers

Answer 1

Population size refers to the number of individuals, while population dendity refers to the number of individuals per unit of area or volume. The correct option is E. None of these descriptions are correct.

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Before answering the question, let us review the concepts of population size and density.

Population size refers to the number of individuals composing a population.

Population size might determine the destiny of the population.

A small population has more chances to get extinct than a bigger-sized population.

Density refers to the average number of individuals of the same species per unit of area or volume. This measure may be more significant than population size.

To estimate population density there are two possible methods: Direct methods and indirect methods.  

Abundance indexes are the parameters related to density, and they reflect changes that might happen in the target population density. They are commonly used to compare population sizes.

According to these concepts, the correct option is E. None of these descriptions are correct.

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Related Questions

check this for me pls

Answers

Answer:

it's both A and B for your answer

Explanation:

both genders can get this disease since it's being past down to their children or offspring, some may get that gene and some might not.

In some pea plant crosses, the plants are self-pollinated. Is self-pollination considered asexual or sexual reproduction? Explain your reasoning. I need a good answer and not from quizlet

Answers

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. Rain washing away soil from a hillside is an example of.... *
1 point
weathering
erosion
deposition
Plz helpp

Answers

Answer:

erosion

Explanation:

rain moving soil is the earths crust slipping, also known as erosion

Answer:

Erosion

Explanation:

because weathering is the breakdown of rocks by physical or chemical weathering, deposition is the dropping of eroded material, and erosion is the movement of rock material from one place to another.

Hope you understood the concept at least.

List 4 significant problems with nuclear power plants....,,,,,?

Answers

Barriers to and risks associated with an increasing use of nuclear energy include operational risks and the associated safety concerns, uranium mining risks, financial and regulatory risks, unresolved waste management issues, nuclear weapons proliferation concerns, and adverse public opinion. Hope this helps!

3 types of animal like protest at least 3 types of plant like protest and at least 1 example of fungi like protozoan

Answers

Answer:

Animal-like protists include the flagellates, ciliates, and the sporozoans.

Explanation:

Umami is one of the taste types that humans can recognize. Which selections below describes the taste of umami? savoriness, brothy, meaty salty sweet bitter

Answers

Answer:

a. savoury...........

Option A) savoriness, brothy, meaty

why groups of animals are found on some islands but not others?

Answers

Answer:

Wilson has created the theory of the biogeographic nature of the island, which predicts that the number of species on the island depends on the balance between colonization, the evolution of the novel island species, and extinction.

Explanation:

A new DNA sequence containing 596 species of terrestrial birds from 41 island chains (archipelagos) around the world has been assembled by the researchers. The data combined sample data from their own field visits, research, and field samples from GeneBank colleagues. This information was utilized to build and employ a dynamic model that predicted international relationships that regulate biodiversity variation in their novel analysis approaches. In that, they confirmed two main components of MacArthur and Wilson's initial biogeography theory on the island.

The understanding of biodiversity on the island is important to conservation but also has implications beyond that – when imposing barriers to species dispersal it could enable us to assess better the effects of human activities, and it can contribute to a wider understanding of biodiversity around the globe.

50 POINTS 4. The age of the Canyon Diablo meteorite was determined by
A) carbon-14
B) uranium-235
C) hydrogen-3
D) potassium-40​

Answers

Answer:

The answer is uranium have an awesome day!

Which phase describes "movement around each other" on a molecular level?
A) Solid
B) Gas
C) Liquid
D) Methane

Answers

Answer: I think it is liquid

Explanation:

What type of plate boundary is shown in the diagram

A. Subduction boundary
B. Convergent boundary
C. Divergent boundary
D. Transform boundary​

Answers

I'll need to see a picture of the diagram to be able to answer this luv!?

Create a typewritten paper describing the carbon cycle.
Describe the exchange of carbon through carbon-containing compounds between an
organism and the environment.
iii. Describe the contributions of photosynthesis and cellular respiration within and among
the four spheres. Discuss how carbon enters and leaves each of the four spheres and in
what forms.
Discuss the role of carbon storage in organisms
It only has to be one paragraph :)

Answers

Answer:

Plants reform the carbon into climatic carbon dioxide into carbon-containing organic compounds, such as sugars, fats, and proteins. Plants take in carbon dioxide by minute openings into their leaves, called stomata. They connect atmospheric carbon with water and produce organic compounds, utilizing energy trapped from sunlight in a method called photosynthesis. The by-product of photosynthesis is oxygen, which plants discharge into the atmosphere by the stomata.

Explanation:

Not positive if I'm right but it's the best answer I've got.

As a population grows past the ecosystem's carrying capacity the size of the population will (blank) until the size of the population stabilizes at a constant level.

What is the blank??
thx!

Answers

the answer is decrease i believe!!

Seed size in a plant is a polygenic characteristic. A grower crosses two pure-breeding varieties of the plant and measures seed size in the F1 progeny. She then backcrosses the F1 plants to one of the parental varieties and measures seed size in the backcross progeny. The grower finds that seed size in the backcross progeny has a higher variance that does seed size in the F1 progeny. Explain why the backcross progeny are more variable.

Answers

Answer:

The F1 progeny is completely heterozygous for the loci of interest since they were obtained by mating between two pure-breeding plant lines. In the next generation, the backcross progeny will have homo-zygous individuals and therefore they will be more variable, resulting from meiosis in F1 hybrids

Explanation:

An F1 resulting from the cross between two pure-breeding plant lines will produce all hybrid individuals, all of them genetically (and phenotypically) identical. Meiosis in F1 hybrids is well known to produce homo-zygous genotypes and thus increases genetic diversity in progeny. For instance, for a single locus, the expected ratio of genotypes obtained from crossing two heterozygous parents is 1:2:1, i.e., one homo-zigous dominant individual, two heterozygous individuals (genetically identical to the parents) and one homo-zygous recessive individual; while the expected phenotypic ratio is 3:1 (i.e., 3 dominant expressing: 1 recessive expressing​).

In a microclimate, the conditions of the small area are______?
A. the same as in the larger surrounding area
B. microclimates do not exist
C. much different than in the larger surrounding area
D. always hotter than in the larger surrounding area

Answers

the answer should be option A

According to Charles Darwin theory of natural selection

Answers

the answer should be the species most adaptable to changes (like in the environment etc.) but I would go for C or D

Answer:

C or D

Explanation:

the answer should be the species most adaptable to changes (like in the environment etc.) but I would go for C or D

1. What do you know about gravity?
2. How could gravity affect the water cycle?

Explain your answer.''

Answers

Explanation:

What do you know about gravity?

ans:Gravity is a force of attraction that exists between any two masses, any two bodies, any two particles. Gravity is not just the attraction between objects and the Earth. It is an attraction that exists between all objects, everywhere in the universe. ... where G is called the Gravitational Constant.

How could gravity affect the water cycle?

ans:It pulls precipitation down from clouds and pulls water downhill. Gravity also moves air and ocean water. ... Gravity pulls denser air and water downward, forcing less dense air and water to move upward. The warm water near the surface of the ocean heats up with sunlight and evaporates, keeping the water cycle in motion.

Homeostasis is the ability of the body to maintain internal balance despite changing external conditions. How does the respiratory system help maintain homeostasis? The respiratory system helps release hormones to control body processes. The respiratory system helps release unwanted heat and water from the body, The respiratory system produces white blood cells that kill disease causing organisms. The respiratory system releases enzymes that help in the break down of food.​

Answers

Answer:

b on edge

Explanation:

its right

The respiratory system helps release unwanted heat and water from the body, maintaining homeostasis.

What is homeostasis?" A state of balance among all the body systems needed for the body to survive and function correctly."How respiratory system maintain homeostasis?Respiratory system helps to remove carbon dioxide and excess heat from our body and maintains our blood pH.During respiration, carbon dioxide reacts with water to form a carbonic acid in presence of enzyme carbonic anhydrase. It further dissociates into bicarbonate and H+ ions. This reaction are in equilibriumWhen the level of H+ ions increases, the pH level increases. This will signal respiratory system to release more carbon dioxide. This will result in formation of carbon dioxide and decrease level of H+ ions which will result in increase blood pH.When we breathe out, the moisture from the tissue are also expelled.

Hence, the respiratory system helps release unwanted heat and water from the body.

To know more about homeostasis here

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How do divisions in the geologic time scale differ from the way we organize time using a clock?

Answers

Explanation:

The Earth's geologic past is divided into hierarchical time periods. This hierarchy comprises eons, eras, times, epochs, and ages, from largest to smallest. The Cenozoic, Mesozoic, and Paleozoic Periods are the three main divisions of the Phanerozoic.

The geological timescale is the official earth clock and differs from the way we organize time using a clock, as the planet's time is too long for us to use measures of hours.

Geologic timescale

Planet Earth is about 4.5 billion years old. To better understand its history, scientists divide geologic time into five levels of classification, called chronostratigraphic units:

EonsErasPeriodsEpochsand ages.

Eons are large and indeterminate spans of time and are divided into four classifications:

Phanerozoic (last 542 million years)ProterozoicArcheanand Hadean.

Of them, only the Hadean is not divided into ages. The ages are characterized according to the different positions of continents, oceans and their living beings. Within the ages are divided in the periods. Epochs, in turn, are divisions within periods and are divided into ages. According to the researchers, we currently live in the Quaternary period of the Cenozoic era.

To get a rough idea of ​​how much the existence of the human being is a mere recent episode in Earth's geological time, we use some analogies. For example, if the entire history of the planet were summarized in the twenty-four hours of a day, the existence of humanity would have occurred in the last three seconds of that same day.

Understanding the dimension of geological time and its scales of measurement becomes a fascinating mental exercise to better understand the role of man in relation to this temporality and his role as heir of all the transformations that have taken place in terrestrial space throughout the geological ages.

Learn more about Geological time in https://brainly.com/question/10134253

Which of the following is true?
The flow of gases varies directly with airway resistance.
As lung compliance increases, the energy required to breathe increases
Surfactant increases the cohesiveness of water molecules therefore decreasing
the surface tension of the alveolar fluid.
Infant Respiratory Distress Syndrome occurs when there is a lack of surfactant
produced. THis is common in premature infants.
In healthy individuals, friction is a major factor affecting pulmonary ventilation

Answers

Answer: Infant Respiratory Distress Syndrome occurs when there is a lack of surfactant  produced. This is common in premature infants.

Explanation:

Infant Respiratory Distress Syndrome (RDS) occurs in new born infants whose lungs are unable to produce the enough surfactant to keep their lungs expanded which would enable them to breathe properly after delivery.

It is most common in premature infants because surfactant is produced in the third trimester of pregnancy so premature infants might not get the chance to produce enough before the are delivered. RDS needs to be treated as soon as possible or else a baby could suffer damage to the brain and other vital organs.

fertilization is the process by which an a)egg and pollen combine b)embryos grow into plants c)animal carries pollen between plants d)ovule breaks open and release seeds​

Answers

Answer:

l

Explanation:

PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.

Answers

Answer:

a

Explanation:

Answer:

I'm pretty sure that the answer is A

If a period contains many fossils of species that previously weren't found, what type of event most likely took place on Earth?

Question 17 options:

Natural selection


Population equilibrium


Punctuated evolution


Mass extinction

Answers

Answer:D

Explanation:

Answer:

Mass extinction

Explanation:

This mass introduction of new fossils points to a preceding mass extinction where many of the existing species died off.

Which is one characteristic of producers?

They recycle nutrients.

They do not eat other organisms.

They break down waste for energy.

They use other organisms for energy.

Answers

Answer:

That would be A

Explanation:

They recycle nutrients back into the soil


PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!

Answers

Answer:

D

Explanation:

All the other answers dont really make as much sense. So D is best answer.

:)

I have to write an acrostic poem for the word mutation. This is for science please help me ASAP!!

Answers

Mistakes not corrected during DNA Replication

Universal genetic code

Transcription and Translation

All amino acids after a Frameshift mutation are changed

They can either change one base or delete or add another

Ionizing radiation can induce mutations

Of course sometimes mutations don't change the amino acid sequence

Noncoding DNA Strand is complimentary to RNA


Knowing that the teenage brain rewards risk is:

-a warning to make choices carefully.

-an excuse to make bad decisions.

-not relevant because parents make all decisions for their teens.

-a reason to lower the drinking age.

Answers

E⁣⁣⁣xplanation i⁣⁣⁣s i⁣⁣⁣n a f⁣⁣⁣ile

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The diagram above depicts a karyotype of an individual human. Which of the following statements concerning the karyotype in the diagram is true? Select all that apply.

The diagram indicates an individual with an extra sex chromosome
The diagram illustrates a genetic condition found in females.
The diagram illustrates the results of nondisjunction during gamete formation.
The diagram indicates a mechanism for increasing genetic diversity in subsequent generations.

Answers

Answer:the diagram illustrates the results of non disjunction during gamete formation.

Explanation:

The following statements concerning the karyotype in the diagram is true - The diagram illustrates the results of nondisjunction during gamete formation.

Karyotype

Karyotype refers to the number and appearance of chromosomes present within the nucleus of a eukaryotic cell. It is illustrated as a diagram such as given in the question.

There is no Down's syndrome as the karyotype demonstrates a normal pair of chromosome 21.  In this karyotype, there is an extra X-chromosome that depicts non-disjunction during either oogenesis or spermatogenesis (gamete formation) in the parents leading to the 23rd trisomy.

Learn more about Karyotype:

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Plants have many characteristics. What is responsible for these characteristics? Select all that apply. inherited from parents inherited by sibling plants affected by the environment affected by soil position

Answers

Answer: Select A,B,D that’s the answer

Explanation: thank me! Your welcome!

When energy is transferred to or from a substance, it can change the molecules’ freedom of movement. True or False?

Answers

Answer:

True

Explanation:

When transfer energy, the substance's temperature changes which can change the molecules' freedom. For example, when water freezes the water molecules loose temperature and slow down, unlike in a gas where molecules are free and energetic.

For a thunderstorm to occur there must be instability lift and _______? A. Moisture. B. Cold temperatures. C. A time between noon and 3:00

Answers

Answer:

A. Moisture.

Explanation:

There are three ingredients that must be present for a thunderstorm to occur. They are: MOISTURE, INSTABILITY, and LIFTING.

Answered by NONE other than the ONE & ONLY #QUEEN herself aka #DRIPPQUEENMO!!!

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