What is extinction ?

Answers

Answer 1

Answer:

The term extinction's dictionary meaning, is the process of when a species, plant, or any other term for animal family, goes extinct. In more, basic terms, it means when a certain species of animal dies out completely.

This can happen due to several reasons, some being massive natural disasters. Others die out due to an unknown predator entering an ecosystem in which it doesn't belong, therefore disbalancing it.

Examples of extinct animals are Dinosaurs, but their exact reason for going extinct is unkown, there are only theories.

There are also many animals in danger of going extinct, for example Bees.

Hope this information could be of use to you!


Related Questions

3.4 Highlight why it is important to evaluate impact assessment studies before any
development could be made on the environment.​

Answers

Answer:

EIA is a tool that ensures the protection and conservation of the environment and natural resources and ensures a sustainable economic development for any project under construction. ... EIA studies the effect of the surrounding environment on the project as well as the effect of the project on the surrounding environment.

hope it helps

Which process causes Earth's surface to warm?

Answers

Answer:the radiation of the Sun’s electromagnetic waves

Explanation:

The radiation of the suns electromagnetic waves the convection of air from the atmosphere

TLE 6 4th Quarter 2nd Summative Test Precious Nicole Arabis G Grade: Directions: Encircle the letter of the correct answer. 1. are the basic necessities of people such as food, clothing, shelter and education. a. Needs b. Wants c. Demands d. Necessities​

Answers

Answer:

a. Needs

Explanation:

Needs are those things that humans primarily depend upon. They are said to be the basic necessities of man. They include; food, clothing, shelter and education.

These basic necessities are a requirement for people in any nation to live a decent life and sometimes, even survive. These basic necessities, called NEEDS, is the poverty determinant of a nation.

Where are blood type proteins located?

Answers

Blood group antigens are either sugars or proteins, and they are attached to various components in the red blood cell membrane

Answer:

Red blood cell antigens can be sugars or proteins

Blood group antigens are either sugars or proteins, and they are attached to various components in the red blood cell membrane.

An antibiotic kills 99.9% of a bacterial population. You would expect the next generation of bacteria Group of answer choices to be just as susceptible to that antibiotic as was the previous generation. to be more resistant to that antibiotic. to be more contagious than the prior generation. to die out due to the drastic decrease in population size.

Answers

to be more resistant to that antibiotic

if an antibiotic eliminates 99.9% of the germs. It makes sense to assume that the new strain of bacteria will be more resistant to that drug than the old strain. Here the correct option is A.

The majority of the susceptible bacteria in the population are killed by the addition of a bactericidal antibiotic, while the resistant bacteria continue to exist. Only the resistant bacteria will continue to grow and multiply while being exposed to the antibiotic.

Antibiotic misuse, overuse, and ineffective infection prevention and control all contribute to the acceleration of antibiotic resistance. At all societal levels, actions can be made to lessen the effects and contain the spread of resistance.

Thus the correct opion is A.

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La polidactilia en la especie humana se debe a un alelo dominante. Entre Francisco y Martha, ambos abuelos de Santiago, uno de ellos tenía polidactilia, sin embargo Juan su hijo (papá de Santiago) nació normal. A pesar de ello Santiago es polidactílico. La explicación a esta situación es que

Respuestas:
A)Como Juan nació normal (aa) la única posibilidad para que Santiago su hijo naciera con polidactilia era que su madre lo fuera también.

B) Como uno de los abuelos era aa (homocigoto recesivo-normal) y el otro Aa (heterocigoto-polidactílico), Juan nació probablemente aa (homocigoto recesivo-normal) y por ello no hay manera que Santiago naciera polidactílico.

C) Como uno de los abuelos era aa (homocigoto recesivo-normal), Juan nació probablemente aa (homocigoto recesivo- normal) y por ello Santiago es polidactílico.

D) Como Francisco y Martha eran Aa (ambos heterocigotos-polidactílicos), Juan nació probablemente AA (homocigoto dominante- polidactílico) y por ello Santiago es polidactílico.

Answers

Answer:

A)Como Juan nació normal (aa) la única posibilidad para que Santiago su hijo naciera con polidactilia era que su madre lo fuera también.

Explanation:

La polidactilia es una malformación causada por un alelo dominante asociada con al aparición de más de 5 dedos en cada pie o más de 5 dedos cada mano. Un alelo dominante es una variante génica capaz de enmascarar la expresión de un alelo recesivo en individuos heterocigotos, es decir, en individuos portadores de una copia del alelo dominante y una copia del alelo recesivo para un gen en particular. De este modo, un alelo dominante es por definición aquel que será expresado en el fenotipo, con lo cual el único modo en el cual Santiago sea portador del alelo dominante causante del rasgo "polidactilia" es que él lo haya heredado, ya sea del padre o de la madre (es importante aclarar que también el alelo dominante puede haber surgido por mutación en la línea germinal). En este caso sabemos de acuerdo al enunciado que el padre de Santiago no tiene polidactilia y por lo tanto no es portador del alelo dominante, con lo cual se espera que Santiago haya heredado esta condición de su madre.

Where are the neutrons located in the atom? O In the nucleus O Around the nucleus​

Answers

Answer:

in the nucleus

Explanation:

they are found in it

cell produces a chemical that diffuses short distances to reach nearby cells. This type of cell-cell interaction is an example of _______.

Answers

Diffusion

I think I’m not sure

Match the hominin with the best description.
Late Pleistocene hominins found only in Europe, Western Asia, and Central Asia; the Shanidar site belongs to this group.
Middle Pleistocene hominin; found in Africa, Asia, Europe; shows a mixture of features from previous and later hominins.

Answers

Answer:

- Late Pleistocene hominins found only in Europe, Western Asia, and Central Asia; the Shanidar site belongs to this group: Neandertals

- Middle Pleistocene hominin; found in Africa, Asia, Europe; shows a mixture of features from previous and later hominins: Homo_heidelbergensis

Explanation:

Neandertals represent an extinct hominid lineage and the closest evolutionary relatives of humans. Neandertals lived in Europe, Central Asia, the Middle East and western Siberia. This group of extinct hominids appeared around 130,000 years ago until their extinction, approx. 40,000 years ago. On the other hand, Homo_heidelbergensis is an extinct group of Homo_Hominids who lived during the Middle Pleistocene, a time period spanning 780,000-120,000 years ago. Homo_heidelbergensis is considered the most recent common ancestor between H. sapiens (modern humans) and Neanderthals. This species (Homo_heidelbergensis) combined primitive features (e.g., a wide face, and thick arching brow ridges) with modern features (e.g., a large brain capacity).

For the following data calculate the MEDIAN.
5, 6, 6, 4, 3, 2, 2, 2, 1,3

Answers

the median is 3 because when you put the numbers in order from least to greatest 3 is the middle number.

Answer:

Mean: 3.4

Median: 3

Mode: 2

Range: 5

Minimum: 1

Maximum: 6

Explanation:

PUT THE NUMBERS IN ORDER TO FIND THE MEDIAN

1, 2, 2, 2, 3, 3, 4, 5, 6, 6

The median is the central number of a data set. Arrange data points from smallest to largest and locate the central number. This is the median. If there are 2 numbers in the middle, the median is the average of those 2 numbers.

The food web models a community along the coast of Alaska. Which
organism in the food web is an herbivore?
A Sea otter
B. Phytoplankton
C. Seagull
D. Rock ptarmigan

Answers

Answer:

its d. rock ptarmigan

i just did the pretest plus looked it up!!!!

What is the responsibility of the Large Intestines?

Answers

Answer:

Since, we know that the large intestines have so many responsibilities .... The purpose of the intestines is basically to absorb water and including salts from a material, Which means it has not yet been digested as food, and also to get rid of any waste products left over, Also this is very important for the intestines to do this process.

define the term colony as it relates to bacterial growth on solid media

Answers

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A colony is a territory under the complete political and military control of the settlers of a state, which is distinct from the home territory of the sovereign.

Two nucleotide sequences found in two different species are almost
exactly the same. What does this suggest about these two species?

Answers

Answer:

May have similar evolutionary histories.

hope it helps

Explanation:

Get rid of pathogenic contamination

Answers

Answer:

wash what ever u get like friuts

Answer:

The best way to ensure you are removing all germs is to use a food grade sanitizer. Food grade sanitizers remove 99.99% of all germs. Food grade or food contact sanitizer is the best choice, because it kills germs and is safe to come into contact with food without contaminating it.

Synovial joints have the greatest range of flexibility and motion.


Please select the best answer from the choices provided.

T
F

Answers

Answer: The answer is true

Answer:

true

Explanation:

true

What almost happened to the island foxs and why?

Answers

they almost went extinct, about 90% of the fox population was recently lost due to canine distemper virus

The island fox only lives on six of the eight Channel Islands off the coast of Southern California. They are found nowhere else on earth by 2000, predation on island foxes resulted in population declines to 15 individuals on San Miguel and Santa Rosa islands, and less than 80 on Santa Cruz Island. And they are Near threatened.

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Name the two systems in a growing plant​

Answers

Answer:

1. The Shoot System

2. The Root System

Explanation:

Answer:

1) the shoot system, and 2) the root system.

Explanation:

Stable salt densities in the oceans keep the earth's climate in balance. What factor causes salinity in the ocean to increase?

Answers

Answer: evaporation, ice melting, precipitation, and ice formation.

Explanation:

Salinity refers to the amount of salt water that can be found in a body of water.

It should be noted that the salinity of a water body can be affected by evaporation, ice melting, precipitation, and ice formation.

The salinity of seawater can be increased through evaporation due to the fact that when the water evaporates, this will lead to the salts being left behind, and this will then increase the salinity.

pa help naman po....

Answers

Answer:.

Explanation:

Answer:

planetrevolution year different Seaons ..( not sure bout this)

An example of transamination is finding a brand new sports car in your driveway with your name on it. removing a phosphate group from a molecule. removing an amino group and putting it into the bloodstream for the kidneys to discard. removing an amino group from one molecule and binding it to a different molecule.

Answers

Answer:

removing an amino group from one molecule and binding it to a different molecule.

Explanation:

Biological macromolecules can be defined as a very large molecule (structure) that comprises of covalently bonded organic atoms and smaller molecular structures (monomers).

Biological macromolecules are categorized into four main categories and these includes;

I. Lipids.

II. Carbohydrates.

III. Nucleic acid.

IV. Proteins.

Generally, proteins comprises of amino acids and it is responsible for maintaining the proper functioning of the body system.

Transamination can be defined as a biochemical process which typically involves the removal of amino groups from amino acids and transferring them to a ketoacid (amino acid without an amine group), so as to form new amino acids.

Basically, transamination is a reversible oxidation-reduction reaction that is responsible for the deamination of amino acids.

Hence, an example of transamination is removing an amino group from one molecule and binding it to a different molecule.


X-ray crystallography is a very important process that is used to help identify the structure of molecules. What exactly does this process show?

Answers

Answer:

can reveal the precise three-dimensional positions of most atoms in a protein molecule because x-rays and covalent bonds have similar wavelength, and therefore currently provides the best visualization of protein structure.

Because x-rays and covalent bonds have comparable wavelengths, they can now give the finest imaging of protein structure because they can reveal the precise three-dimensional locations of the majority of atoms in a protein molecule.

What is X-ray crystallography?

X-ray, a scientific technique called crystallography may be used to map out the atoms of a crystalline material in three dimensions. By using most crystalline materials' interatomic gap as a diffraction gradient for x-ray radiation, which has wavelengths on the order of 1 angstrom, this method makes use of the interatomic spacing of most crystalline solids.

Wilhelm Rontgen made the discovery of x-rays in 1895. Up until 1912, there remained disagreement about whether x-rays constituted electromagnetic energy or particles. Researchers recognized that this light's wavelength would need to be in the range of 1 Angstrom (A) if the wave theory was accurate.

It would be necessary to use a gradient with separation on the same order of magnitude as the light for diffraction and measurement of such tiny wavelengths.

To diffract the x-ray beams, the arrangement of the atoms must be in an ordered, periodic form. The specific arrangement of atoms in that crystal is then revealed through a sequence of mathematical computations to create a diffraction pattern. The principal technique still in use today for studying the structure and bonding of organometallic compounds is X-ray crystallography.

Therefore, since x-rays and covalent bonds can display the precise three-dimensional locations of the majority of atoms in a protein molecule, they provide the best imaging of protein structure currently achievable.

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What is the albedo effect?

Do you think the earth is warming up?

Answers

Answer: Astronomers define the reflectivity of an object in space using a term called albedo. This is the amount of electromagnetic radiation that reflects away, compared to the amount that gets absorbed.

Explanation: But to answer the "Earth warming up" question, I'd have to say that for over millions of years, Earth's climate has warmed up and cooled down many times. However, today the planet is warming much faster than it has over human history. Global air temperatures near Earth's surface have gone up about 2 degrees Fahrenheit in the last century. However, other evidence suggests that the period of 2,000 to 3,000 million years ago was generally colder and more glaciated than the last 500 million years.

So, yes I do believe that the Earth is warming up but not to explode.

Could I have Brainliest, please?

Have a fantastic day!

Yea what he said on top

All of the different organisms interacting in a pond make up:
A) a community
B) a population
C) the water cycle
D) the habitat

Answers

D or A because a habitat is made of different things and so does a community

Answer:

Hi, there your answer is a community

Explanation:

Which nutrient, identified in the 2010 Dietary Guidelines for Americans, is considered "a nutrient of concern"?

Answers

potassium is considered a nutrient of concern

Which of the following is an example of confirmation bias?

A. A researcher is studying the college readiness of American teens. He interviews 200 urban male teenagers from Philadelphia and finds that 85% say they are ready for college. The researcher concludes that 85% of all teenagers in America are ready for college.

B. An oil company has research done on the effects of drilling on the environment. It is found that in 87% of cases, there is a negative effect. The oil company only publishes the 13% that show a positive effect, or no negative effects.

C. A journalist who does not think climate change is real is writing an article about climate change. In his article he cites one article that discusses how humans cannot be causing climate change, and ignores several other articles that discuss how humans can cause climate change.

D. A pharmacologist is studying the effect of certain drugs on humans, and tells the test subjects that the drug may cause headaches. Some of the subjects are given the drug, and some are given placebos (sugar pills) instead. Then the number of headaches is counted.

Answers

Answer:

C

Explanation:

the journalist already has an opinion on the matter, and only uses sources that confirm his opinion and ignores anything that says he is wrong. His bias affects his findings.

The answer to this question

Answers

Answer:

- Spores occur underneath the leaves - PTERIDOPHYTES

- cones contain the seeds - GYMNOSPERMS

- absorbs nutrients through diffusion and osmosis - BRYOPHYTES

- ovary encases the seeds - ANGIOSPERMS

Explanation:

Plants are a very diverse group of living organisms. Each plant group has its own unique characteristics that distinguishes it from other groups. Bryophytes and pteridophytes are considered as lower plants because of their primitive features while gymnosperms and angiosperms are considered as higher plants because of their advanced features. The prominent characteristics of each plant group according to this question is as follows:

- PTERIDOPHYTES produce spores underneath their leaves.

- BRYOPHYTES absorbs nutrients through diffusion and osmosis since they lack true roots, stems and vascular tissues.

- GYMNOSPERMS bear their naked seeds on structures called cones or strobili.

- ANGIOSPERMS encases their seeds in ovaries of their flowers, which later develops into fruits.

Fill in the blank below with the vocabulary word that best completes the sentenc
is the science of naming and classifying organisms based on structura
genetic evidence

Answers

Taxonomy is the science of naming and classifying organisms based on structural comparisons and genetic evidence

Help! This question is nowhere in the internet!

Answers

Answer:

46%

Explanation:

what is a reasonable measurement for the distance across the milky way galaxy ?

Answers

Answer:

Between 100,000 and 150,000 light-years

Explanation:

According to BBC, "the Milky Way Galaxy is probably between 100,000 and 150,000 light-years across"

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A map of Northeastern Mississippi. Eastern side inward is labeled D, C B, A.Which soil region is labeled D on the mapBlack PrairieFlatwoodsPontotoc RidgeTombigbee Hills Suppose $p$ and $q$ are inversely proportional. If $p=28$ when $q=7$, find the value of $p$ when $q=49$. Match the group in column 1 with the action it wants to take toward theAmazon rain forest in column 2.NativeAmericans?Expand cattle farmingRanchers?Leave the forest aloneEnvironmentalgroups?Search for new medicinesDoctorsDoctors?Preserve the forest Find the volume of the given prism. A) 6,336B) 3,568 C) 1,784D) 1,920 Who can answer these? PLEASE HELP ME WITH THIS ONE QUESTION The half-life of Barium-139 is 4.96 x 10^3 seconds. A sample contains 3.21 x 10^17 nuclei. How much of the sample is left after 1.98 x 10^4 seconds?A) 8.03 x 10^16 nucleiB) 4.01 x 10^16 nucleiC) 2.02 x 10^16 nucleiD) 1.61 x 10^17 nuclei Tanklin 1. Which sentence is punctuated correctly? * The artist preferred to paint in oils he did not like water colors. O The artist preferred to paint in oils; he did not like water colors. O The artist preferred to paint in oils, he did not like water colors. orrectly? In April 1974, Steve Prefontaine completed a 10.0 km race in a time of 27 min , 43.6 s . Suppose "Pre" was at the 7.71 km mark at a time of 25.0 min . If he accelerated for 60 s and then maintained his increased speed for the remainder of the race, calculate his acceleration over the 60 s interval. Assume his instantaneous speed at the 7.71 km mark was the same as his overall average speed up to that time. What is the length of Line segment A C?3 ft4 ft18 ft12 ftOn edge unity pls help Jenna sells apples and pears. If 20 apples and 60 pears re sold every hour, there will be 80 pears when all the apples are sold. If 60 apples and 20 pears are sold every hour, there will be 400 pears when all the apples are sold. How many pears are there at the stall? what is the Quotient of 16.29100 Organelles are specialized structures that perform important cellular functions; they are structures you can generally see only under a microscrope. Which of the organelles below would you expect to find in all living cells?A) cell membrane B) cell wallC) DNA D) Cytoplasm E) Nucleus F) Chloroplasts The federal tariff of 1828, called the Tariff of Abominations, charged taxes on goods entering the country. This tariff affected the agricultural South more than other regions of the country. In response, the state of South Carolina called for? Which side lengths form a right triangle? estimate the quotient for the following problems. 482 5 Examine the diagram of circle O, where JW and JV are tangent to circle O at points W and V, respectively. The diagram as described in the problem. 2016 StrongMind. Created using GeoGebra. If JW=x8+4 and JV=x4+2, what is the length of JW?a. 2b. 6c. 16d. 10 due at 11 am todaypls solve both and explain in detail 8)Zack has 75 dollars in her bank account. After goingto the hair salon, he is left with 53 dollars. Whatwas the amount he spent at the salon?9)Steph paid the dues for his driving offenses recentlyand was made to pay a fine of 165 dollars for 5 monthsoverdue. How much did he pay as a fine per month? A gas pump filled a 27 gallon tank in 6 minutes.How many minutes will it take to fill an 18 gallon tank? help me plz it would really help u guys help me so much and make me understand my work more The outcome of protein synthesis is ______.A. A glucose moleculeB. An mRNA moleculeC. A protein