Which of the following refers to a population of organisms at risk of becoming extinct due to low numbers, changing environmental conditions, or predation? O endangered species endemic species O native species O invasive species​

Answers

Answer 1

Answer:

Endangered species

Explanation:


Related Questions

¿A qué se debió el incremento en la cantidad de oxígeno en la atmósfera hace miles demillones de años?

Answers

Debido a que el hidrógeno molecular expulsado por los volcanes se difundió en el espacio, la Tierra ganó una atmósfera rica en oxígeno. Otra posibilidad es que el oxígeno se acumule debido a una disminución de gases – como el hidrógeno – que reaccionan con y por lo tanto "absorben" el oxígeno.

Explanation:

Answer: Some authors suggest the rise in oxygen about 2,470 – 2,450 million years ago was related to extensive volcanic activity,

Explanation:

Cuál es el órgano más grande del cuerpo humano

Answers

Answer:

Explanation:

La piel

Answer:

The skin is often known as the largest organ of the human body. This applies to the exterior surface, as it covers the body, appearing to have the largest surface area of all the organs. Moreover, it applies to weight, as it weighs more than any single internal organ, accounting for about 15 percent of body weight.

Explanation:

Hi! Can someone please help me and fill out the family tree genetics?
Instructions- 1. Pick a trait for each parent. If the trait is Heterozygous (one capital, one
lowercase) ten roll the dice to determine which one gets passed on, an odd number on the dice means the dominant allele is passed on, an even number means the recessive allele is passed on.
I’ll give brainly :)

Hi! Can someone please help me and fill out the family tree genetics? Instructions- 1. Pick a trait for

Answers

Despite not being impacted, they must since they have affected children.They are both heterozygous because both have the disorder-causing allele.

How can you be certain that II 3 and II 4 have heterozygotes? Despite not being impacted, they must since they have affected children.They are both heterozygous because both have the disorder-causing allele.Due to the absence of dimples in unshaded individuals like I-1, they must have the homozygous recessive genotype dd.The chance of having sickle-celled offspring is exceedingly unlikely for someone with the AA genotype who can choose a life partner from almost any other genotype category.While the AA genotype has the highest compatibility and is also the most prone to malaria, some study demonstrates this.First filial generation (F1) is referred to as such, whereas second filial generation (F2) is that which results from crossing F1 generation.

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Which class is a lever with the fulcrum located between the effort and resistance?

Answers

A class 1 lever has the fulcrum positioned between the effort and resistance, allowing for the amplification of force or the achievement of balance.

The class of lever with the fulcrum located between the effort and resistance is called a class 1 lever. In this type of lever, the fulcrum is positioned in the middle, with the effort applied on one side and the resistance on the other. Class 1 levers are commonly seen in tools such as seesaws and crowbars. They can be used to amplify force or achieve balance. When the effort is applied closer to the fulcrum than the resistance, a mechanical advantage is gained, allowing a smaller effort to move a larger resistance. On the other hand, if the effort is applied farther from the fulcrum, a mechanical disadvantage is created, requiring a larger effort to move a smaller resistance.

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what forms between daughter plant cells near the end of the telophase and during cytokinesis​

Answers

Answer:

a cell plate forms along the metaphase plate, growing inward from the sides of the rectangular plant cell.

Explanation:

It was believed for a long time that Jellyfish were a trophic “dead end” and that no organisms utilized jellyfish as a food source. Based on the illustration above, is it true that Jelly fish are at the top of the food chain? Explain your reasoning using the data.

It was believed for a long time that Jellyfish were a trophic dead end and that no organisms utilized

Answers

In the Irish sea, a lot of different types of water animals eat jellyfish. It would be hard to say that they are on the top when all these animals/fish eat the jellyfish.  Out of 2500 examples of different species the herring had more than 20 percent of jellyfish in them out of 512 that were cut open to see if a jellyfish was in them. In this whole experiment 2500 sea creatures were gutted and the results definitely weren't in the jellyfishes favor. Although the Grey Gurnard, Dab, Sprat, Poor Cod and Squid do not eat much Jelly Fish. The Herring and Dragonet do. I def finitely do not think they are on the top, but they sure do not have that many sea creatures eating them. And you would of thought that the ones that did would be bigger.  I am actually very surprised to see that so many creatures were found with the Jelly Fish inside of them. I also wonder what other creatures eat it that we may not know about yet.

Why is shadow so small ?

Answers

Answer::)

Explanation:

The reason you shadow is small is either because you are small or because the sun is at a certain angle and your shadow seems small.

How does fluoroquinolone help?

Answers

Fluoroquinolones are antibiotics approved to treat or prevent serious bacterial infections, including skin, bone and joint, lower respiratory tract and urinary tract infections. They work by killing or stopping the growth of certain bacteria.

What has to be present in order for metamorphic rocks to form?

Answers

Factors such as  high heat and high pressure have to be present in order for metamorphic rocks to form.

What is a Rock?

This is referred to as a solid collection of mineral grains that grow or become cemented together and are formed through various types of techniques.

Metamorphic rocks in the other hand is referred to as any of a class of rocks that result from the alteration of preexisting rocks in response to changing environmental conditions and the process it undergoes is metamorphism hence the name given to it.

Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids etc or combination of the factors mentioned above which are usually present in the deep region within the Earth or where tectonic plates meet.

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50 POINTS!!!!! Pls Help !

Use the following table to answer the question…
Codons Found in Messenger RNA. Using this information, what sequence of nucleotides in the template strand of DNA could code for the polypeptide sequence Val-His-Thr?
This table shows the codons found in messenger RNA. Using this information, what sequence of nucleotides in the template strand of DNA could code for the polypeptide sequence Val-
His-Thr?

1. GUA CAU ACC
2. GTA-CAT-ACC
3. CAT-GTA TGG
4. CAU-GUA-UG

50 POINTS!!!!! Pls Help !Use the following table to answer the questionCodons Found in Messenger RNA.

Answers

A and B is the correct answer

Answer:

A

Hoped this helped <3

Over the last 60 years, scientists have come to the conclusion that birds descended
from theropods instead of the previous explanation that all dinosaur species died
out 65 million years ago. Using your knowledge of science and the source provided,
give two pieces of evidence to support the idea that birds descended from
theropods and explain how each plece of evidence supports the explanation.

Answers

Two pieces of evidence supporting the idea that birds descended from theropods are Fossil Evidence and Comparative Anatomy.

The discovery of fossil specimens that exhibit intermediate characteristics between theropod dinosaurs and early birds provides strong evidence for the evolutionary link between the two. One notable example is the fossil of Archaeopteryx, which exhibits features of both dinosaurs and birds. It possesses reptilian features such as teeth, a long bony tail, and claws on its wings, while also having bird-like feathers and flight adaptations. This transitional fossil suggests a gradual evolutionary progression from theropod dinosaurs to birds, supporting the idea of avian evolution.

Comparative anatomical studies between birds and theropod dinosaurs reveal numerous similarities. Both groups share skeletal characteristics such as hollow bones, a furcula (wishbone), and a similar arrangement of limbs.

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what is action potential in psychology?

Answers

Answer:

An action potential is part of the process that occurs during the firing of a neuron. During the action potential, part of the neural membrane opens to allow positively charged ions inside the cell and negatively charged ions out. ... This electrical impulse is carried down the nerve through a series of action potentials.

Explanation:

If you infect the buffalo population with a disease how do you predict that will affect the buffalo population ?

Answers

It will decrease the population of Buffalo.

Without proper treatment, the Buffalo will die off. Resulting in less buffalo.

A scientist is testing whether light color affects plant
growth. She places three groups of plants in boxes, each
with only one color of light: red, blue, or green. She places
a fourth group of plants in natural light. Each day she
measures the plants and records their growth.
What is the dependent variable in this experiment?
OA. The color of light the plants received
B. The plants in natural light
OC. The type of plants she used
D. The growth of the plants

Answers

The dependent variable in this experiment is D. The growth of the plants.

The scientist is measuring and recording the growth of the plants each day, which is the variable that is being affected and influenced by the different colors of light. The growth of the plants is the outcome that is dependent on the variable being tested, which is the light color.The dependent variable in this experiment is the growth of the plants, as it is the outcome that is being measured and recorded. The scientist is interested in observing how the different colors of light affect the growth of the plants. By comparing the growth of the plants in red, blue, green, and natural light conditions, the scientist can analyze the impact of light color on plant growth.

In conclusion, the dependent variable in this experiment is the growth of the plants. By manipulating the colors of light that the plants receive and measuring their growth over time, the scientist aims to determine the effect of light color on plant growth.

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Question 1

Someone with an O blood type is suspected to be the father of a child with B blood. Is
this possible?
Answer using correct terminology in 1-2 sentences.

Answers

It can be possible because the mother can present B blood phenotype. This opens the possibility of she having an heterozygous genotype of I^b i or I^b I^b which are dominant over the genotype of the O type father.

Which is NOT a problem with clear-cutting as a means of timber harvest?

Answers

High Cost of clear cutting when compared to other methods
Clear-cutting as a means of timber harvest can have several negative impacts on the environment and ecosystem. Some of the problems associated with clear-cutting include:

1. Loss of biodiversity: Clear-cutting removes entire forests, which can lead to a loss of habitat for many plant and animal species.

2. Soil erosion: Without trees to hold the soil in place, rain and wind can cause significant soil erosion, which can lead to problems like landslides and sedimentation of streams.

3. Water quality: Clear-cutting can negatively impact water quality by increasing sedimentation and runoff.

4. Climate change: Deforestation and clear-cutting can contribute to climate change by reducing the amount of carbon dioxide that is absorbed by trees and increasing greenhouse gas emissions.

Therefore, the statement "clear-cutting has no negative impact on the environment" is incorrect, as clear-cutting can have significant negative impacts on the environment and ecosystem.

What can result in winds blow across the ocean water?
How

Answers

Winds blowing across the ocean water result in the formation of waves and surface currents.

Twists blowing across the sea surface can bring about a few impacts. The rubbing between the air and the water, right off the bat, causes the exchange of energy, making waves or little waves known as wind waves. These breeze waves can then combine and form into bigger waves over the long haul. Also, the power of the breeze can create surface flows, pushing the water toward the overarching wind. These flows, known as wind-driven flows or surface flows, assume a urgent part in reallocating intensity and supplements inside the sea. They can likewise impact the development of marine organic entities and add to the arrangement of maritime highlights, for example, upwelling and beach front upwelling.

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In sediments and waterlogged soil, dissolved O2 concentrations are so low that the microorganisms living there must rely on other sources of oxygen for respiration. Some bacteria can extract the oxygen in sulfate ions, reducing the sulfur in them to hydrogen sulfide gas and giving the sediments or soil a distinctive rotten-egg odor. What is the oxidation number of sulfur in these compounds

Answers

Answer:

SO₄²⁻ (+6)

H₂S (-2)

Explanation:

To determine the oxidation number of sulfur in a compound, we need to consider that the sum of the oxidation numbers of the elements present is equal to the charge of the compound.

Some bacteria can extract the oxygen in sulfate ions...

SO₄²⁻

1 × ON(S) + 4 × ON(O) = 2-

1 × ON(S) + 4 × -2 = 2-

ON(S): +6

...reducing the sulfur in them to hydrogen sulfide gas...

H₂S

2 × ON(H) + 1 × ON(S) = 0

2 × +1 + 1 × ON(S) = 0

ON(S): -2

What do red lines in rocks indicate about the biosphere? (1 point)
O Continental drift affected the biosphere..
O
Volcanic action has damaged the biosphere.
Oxygen is being produced by the biosphere.
O Carbon dioxide is being produced by the biosphere.

Answers

Red lines in rocks do not provide direct information about the biosphere.  Red lines in rocks typically indicate the presence of iron oxide minerals, such as hematite or rust, and do not provide direct information about the biosphere.

These minerals can form as a result of a variety of geological processes, including weathering, deposition, and alteration. However, the composition and structure of rocks can provide indirect evidence about the history of the biosphere, such as the presence of fossils or the types of sedimentary rocks formed in ancient oceans.

Continental drift and volcanic action can also indirectly impact the biosphere by affecting climate, geography, and atmospheric composition. The composition and structure of rocks can provide indirect evidence about the history of the biosphere, such as the presence of fossils or the types of sedimentary rocks formed in ancient oceans.

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The term ____ refers to anatomical structures that are found on the same side of the body.

A. Contramedial
B. Bilateral
C. Contralateral
D. Ipsilateral

Answers

Answer:

D. Ipsilateral

Explanation:

Ipsilateral is the occurrence of anatomical structures like the muscles, body organs, parts, etc., on the same side of the body. Thus, option D best fits the blank.

What is Ipsilateral?

Ipsilateral is an anatomical terminology that defines the position, regions, and body structures that lie or occur on the same side of the body. On contrary, contralateral defines the structures on the opposite side of the body.

Bilateral is an anatomical term that refers to the anatomical structures that are present on the left and right side of the body and affects both sides. It defines the symmetry of the body.

Therefore, the Ipsilateral refers to structures of the same side.

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The lacrimal gland is also known as the tear gland. It provides the proper ingredients and most of the volume of the tears that bathe the ____ of the eye. Secretions here contain an antibacterial enzyme called ____ , and also antibodies that attack ____ before they enter the body.

Answers

Lacrimal glands are the tear glands. These secrete tears that bathe the  orbit of the eye. These secrete enzyme called Lysozyme which is antibacterial and secretory IgA antibodies that attack viruses and bacteria.

What are Lacrimal Glands?

Lacrimal glands are the exocrine glands that secrete tear. These are found in most terrestrial vertebrates and some marine mammals. These are present on the orbit above the lateral end of each eye. These secrete watery fluid which cleanses and protects the eye surface.

Secretions of the lacrimal gland contain enzymes such as lysozyme, amylase, secretory IgA antibody, etc. These protect the eye by attacking the bacteria and virus.

Therefore, proper functioning of the lacrimal gland is important for the protection and lubrication of eye.

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what are some characteristics and examples of members from the class reptilia?

Answers

Reptiles are cold-blooded animals that breathe air and have dry, scaly skin. They lay eggs on land and are found in a variety of habitats, from deserts to forests to oceans. Some examples of reptiles include snakes, lizards, turtles, crocodiles, and alligators.


The conformational change in an enzyme after the substrate is bound that allows the chemical reaction to proceed, can be explained by
A.induced fit
B. transition
C. fit and fine
D. Pasteur

Answers

The correct answer to explain the conformational change in an enzyme after the substrate is bound, allowing the chemical reaction to proceed, is A.

Comprehend and summarize the process of photosynthesis, such as the roles of light, carbon dioxide, water and chlorophyll; production of food; release of oxygen.
Identify the reactants, products, and basic functions of photosynthesis.
Include supporting evidence that living systems follow the Laws of Conservation of Mass and Energy

Answers

Answer:

the chemical equation for photosynthesis is 6CO2 + 6H2O → C6H12O6 + 6O2

Explanation:

reactents-Photosynthesis requires sunlight, carbon dioxide, and water as starting reactants (Figure 5.5). After the process is complete, photosynthesis releases oxygen and produces carbohydrate molecules, most commonly glucose. These sugar molecules contain the energy that living things need to survive.

stomata- underside of leaf

02(oxygen)-releases oxygen for any living thing

sun is necessary

xylem is a series of tubes

chloraphull must be present

A plant that has round seeds is crossed with one that has wrinkled seeds. The offspring had half round seeds and half wrinkled seeds. What were the genotypes of the parents?




A plant that has round seeds is crossed with one that has wrinkled seeds. The offspring had half round seeds and half wrinkled seeds. What were the genotypes of the parents?




Rr x Rr


RR x rr


Rr x rr


RR x Rr

Answers

Answer:

2nd one

Explanation:

I believe this is correct. rr is a recessive homozygous.

Suppose a person has two different alleles of a specific gene that influences hair color. Which of the following is FALSE about these two alleles?
a. Each allele is represented by a sequence of nucleotides in the person's DNA.
b. Every diploid cell in the person's body has both alleles.
c. Each allele is composed of double-stranded RNA.
d. An specific allele would be found at a specific location on a specific chromosome.
e. The two alleles are located, one each, on two homologous chromosomes.

Answers

Answer: The option C is the right answer  for the respective Question

Explanation:  one should note that the genes of humans are made up of DNA, not RNA. And the RNA is present in the form of a single strand in the body and if it's in the form of double-strand , it would stop transcription or we can say that protein formation will get interrupted.


A single gene with two alleles control variation in haemoglobin type in sheep. There are three different phenotypes corresponding to genotypes S^AS^A S^AS^B and S^BS^B respectively in a flock of 175 sheep the frequency of allele S^A was found to be 0.6 and frequency of allele S^B WAS found to be 0.4

Answers

Populations in Hardy-Weinberg equilibrium express the same allelic and genotypic frequencies through generations. Number of individuals expressing each phenotype: 63 sheep S^AS^A, 84 sheep S^AS^B, 28 sheep S^BS^B.

What is Hardy-Weinberg equilibrium?

The Hardy-Weinberg equilibrium theory states that allelic and genotypic frequencies in populations that is in equilibrium remain the same through generations. No evolutive forces are acting on these populations, so no evolution occurs.

Assuming a diallelic gene,

Allelic frequencies

The frequency of the dominant allele f(X) is pThe frequency of the recessive allele f(x) is q

Genotypic frequencies

p² (Homozygous dominant genotypic frequency), 2pq (Heterozygous genotypic frequency), q² (Homozygous recessive genotypic frequency).

The addition of the allelic frequencies equals 1

p + q = 1.

The sum of genotypic frequencies equals 1

p² + 2pq + q² = 1

In the exposed example,

Alleles          Frequencies

S^A      f(S^A) = p = 0.6S^B      f(S^B) = p = 0.4

Genotypes

S^AS^A ⇒ homozygousS^AS^B ⇒ heterozygousS^BS^B ⇒ homozygous

We need to get the number of animals expressing each genotype and phenotype. To do it, we just need to use allelic frequencies and calculate  genotypic frequencies (p², 2pq, and q²), and then multiply these values by the total number of animals (N = 175).

Genotypic and Phenotypic frequencies

F(S^AS^A) = p² = 0.6² = 0.36

F(S^AS^B) = 2pq = 2 x 0.6 x 0.4 = 0.48

F(S^BS^B) = q² = 0.4² = 0.16

Number of individuals expressing each phenotype

S^AS^A ⇒ 0.36 x 175 = 63 individualsS^AS^B ⇒ 0.48 x 175 = 84 individualsS^BS^B ⇒ 0.16 x 175 = 28 individuals

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Complete question

A single gene with two alleles control variation in haemoglobin type in sheep. There are three different phenotypes corresponding to genotypes

S^AS^A S^AS^B and S^BS^B

In a flock of 175 sheep the frequency of allele S^A was found to be 0.6 and frequency of allele S^B WAS found to be 0.4.

Using the hardy weinberg equation calculate the number of sheep with each phenotypes in the flock show your working

Ammonia oxidizing bacteria utilize ammonia as an electron source and use oxygen as a terminal electron acceptor. In this form of aerobic respiration, the ammonia is getting _____.

Answers

Answer:

oxidized

Explanation:

Oxidation is defined as a loss of electrons, increase in oxidation number, the addition of oxygen, or the removal of nitrogen. On the other hand, the reduction is defined as the gain of electrons, decrease in oxidation number, the removal of oxygen, or the addition of hydrogen.

Ammonia being utilized as an electron source means that the compound is an electron donor in the redox reaction while oxygen is acting as an electron acceptor. Hence, in this form of respiration, ammonia is getting oxidized while oxygen is getting reduced.


A generator changes electrical energy to mechanical energy.
trie or false

Answers

Answer:

False

Explanation:

A generator converts mechanical energy into electrical energy

Explain how the ocean affects human life through medicine, nutrition and the economy?

Answers

Answer:

Cures from the Deep

Explanation:

Many new marine-based drugs have already been discovered that treat some types of cancer, antibiotic resistant staph infections, pain, asthma, and inflammation.

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