How might a bear be influenced by external factors in its environment?

Answers

Answer 1

Answer:

Environments are constantly changing and animals can often adapt to these changes. Climate change also is forcing animals to interact with each other in new ways. For example, as the sea ice melts,polar bears spend more time on land, which brings them into greater contact with brown bears.


Related Questions

An enzyme is a form of what

Answers

What an enzyne is a form of is a Protein.

Answer:

Proteins.

Explanation:

Proteins are made of the polymers of the amino acids that are linked together through the peptide bond. The proteins are the important biomolecules of the living organism.

The enzymes are made of the proteins. Each enzymes shows the important specific sequence of the amino acids. These enzymes are used in the metabolic reaction for the efficiency of the reaction and increases the rate of a reaction.

Thus, the answer is proteins.

Can someone please help me with this one problem I don’t understand it.

Answers

The heart rate would decrease because as the muscle gets stronger, it pumps more blood. Because there is more blood pumped with each pump, your body would need less pumps to pump the same amount of blood, making the heart rate slower.

As a result of these processes, the single celled organism accomplishes
1)Gamete production
2)energy production
3)sexual reproduction
4)asexual reproduction

Answers

Answer:

The correct answer is option 4 (asexual reproduction).

Explanation:

Asexual reproduction is a type of reproduction in which an organism produces genetically identical offspring's to the parents without involving contribution of genetic material of another individual. It is primary form of reproduction for single-celled organisms.

Mechanism of asexual reproduction involves:

1. Nuclear division- marked by the synthesis of DNA and

2. Cytokinesis- marked by the division of the cell into two identical daughter cells.

Asexual reproduction do not involve fertilization, reduction in chromosome and meiosis.

So, exact copies of parent cells are produced with identical genetic material content.

Thus, option 4-asexual reproduction is the correct answer.

As a result of these processes, the single celled organism accomplishes gamete production, energy production, reproduction of both types. All options are correct.

Several critical processes are carried out by the single-celled organism:

Gamete production: Gametes, which are specialised cells engaged in reproduction, are produced by single-celled organisms to reproduce sexually.

Energy production: Single-celled organisms, like all living things, require energy to carry out their biological functions.

Gamete fusion reproduction: Single-celled organisms may reproduce, integrating genetic material from two parents to generate children with distinct genetic characteristics.

Asexual reproduction: Many single-celled organisms may reproduce asexually in addition to sexually.

Thus, all options are correct.

For more details regarding reproduction, visit:

https://brainly.com/question/7464705

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True or false: when maintaining good posture the body alignment favors the position that requires the least amount of muscular work and places the most strains on muscles, ligaments, and bones.

Answers

FALSE

"Good posture involves training your body to stand, walk, sit, and lie in positions where the least strain is placed on supporting muscles and ligaments during movement or ... The spine's curves work like a coiled spring to absorb shock, maintain ... be at eye level, head position should include ears aligned with shoulders."

My source is https://mayfieldclinic.com/pe-posture.htm

plz give me a brainliesttt

This is false.

Hope this helps.

Which is the most sustainable practice?

Answers

A) Using more wind power

The most sustainable practice is using more wind power.

What is wind power? how it get generated?

When mechanical energy enhances a unit by harnessing wind power, it may be called a windmill, wind pump or wind charger. Wind energy can be used for anything from power on boats, battery charging or electricity to being used commercially.Wind turbines can use excess power to compress air, this is usually stored in large above-ground tanks or in underground caverns. When required the compressed air can be used through direct expansion into a compressed air motor.

Using more wind power is the best practice.

To learn more about wind power refer:https://brainly.com/question/26224243

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which object would take the most force to hold up in the air ? A. a bus B. a chair C.a balloon D. a nail

Answers

Hello! Well, this is just a common sense question, lets think about this on terms of weight, a bus is about 33,000 pounds, and you would need over a ton of helium to lift that force up. The other three would be the lightest so according to the weight of the Bus, that would be the answer. Good Luck!

Answer:

a bus

Explanation:

It takes more force to hold a heavier object up in the air because gravity pulls down with more force on objects that have more mass. A bus is the heaviest object, so it would take the most force to hold up in the air.

Which of the choices below gives a true example of how a natural resource can be renewed?

When an area's natural gas has been used up, oxygen can replace the gas.

When forests have been cut down, new native trees can be planted.

When all of the coal is gone from a mine, new coal can be grown in its place. When the wind is calm, electric fan can be turned on to make the windmills move.

When the wind is calm, electric fans can be turned on to make the windmills move.

Answers

When forests have been cut down, new native trees can be planted

A. When an area's natural gas has been used up, oxygen can replace the gas.

Which tool enhances weather forecasts by enabling monitoring, which is necessary for predicting global weather and environmental events?

map
satellite
weather balloon
automated weather station

Answers

The correct answer is - satellite.

The satellites are something that is crucial for the functioning of the modern day world in pretty much all aspects. They are also very important in the climatology and meteorology. The satellites are able to monitor the whole planet, thus through them it can easily be seen where the air masses are moving, what type of air masses are moving towards where, their speed of the air masses, is there clouds, and if there is where are they moving, formation of large storms etc. ll of these information from the monitoring of the satellites go to the weather stations, where the weather forecasts are made, and than through the media reach the people all over the world.

Answer:

B

Explanation:

satellite

Jazelyn needs to create a project that shows reproductive isolation in action and decides

Answers

Here is the complete question:

Jezelyn needs to create a project that shows reproductive isolation in action and decides to make a video. Which of the following would make the best project?

A. A video that shows a large river that has penguin populations on both sides.  

B. A video that shows penguin species that have different mating dances.

C.  A video that shows a penguin that is laying eggs.

D.  A video that shows penguins in a tidal pool and an open ocean.

ANSWER

The correct option is B.

Reproductive isolation refers to evolution mechanisms that make it impossible for member of different species from successfully mating or producing fertile offspring. There are two different types of barriers that can prevent different species from mating, these are prezygotic and postzygotic barriers.

Prezygotic barriers are those hindrances that prevent different species from producing offspring by preventing formation of zygote. An example of this barrier is difference in courtship behaviors. Post zygotic barriers  prevent offspring produced by different species from being fertile, that is, they are sterile.

Answer:

b

Explanation:

how is sanitary landfill different from dump

Answers

Final answer:

A sanitary landfill is an engineered site designed to manage waste with protective measures such as liners and leachate treatment, while a dump is an unregulated site that poses environmental risks.

Explanation:

How is a sanitary landfill different from a dump? A sanitary landfill is a carefully designed structure built into or on top of the ground in which waste is isolated from the surrounding environment. This isolation is accomplished with a bottom liner and daily covering of soil. Landfills also have systems to manage leachate, which is contaminated water that moves through or drains from a landfill, and to collect and treat landfill gas. On the other hand, a dump is an area where trash is simply deposited and sometimes burned without any measures to protect the environment, leading to problems such as air pollution, smog, and potential groundwater contamination due to absence of linings and leachate treatment systems.

Emma is curious to see how fertilizer makes a plant grow larger. After doing some research, she believes that the chemicals within the fertilizer will make a plant increase in size. She also believes that plants that do not receive fertilizer will be smaller in size. Emma plans to put the same type of plant seed into 6 pots containing soil and fertilizer and monitor how the plants grow. She runs out of fertilizer, though, and decides to put sand into 3 of the pots instead of fertilizer and soil. After the experiment finishes, Emma observes that the plants that had fertilizer grew much larger than the plants with sand. She finally concludes that fertilizer greatly increases the size of a plant. Why is her conclusion invalid?

Answers

Her conclusion is invalid because using sand instead of soil slows down plant growth. Fertilizer, on its own, does not 'greatly' increase the size of the plant.

The correct way to do this experiment would be to keep all other parameters same, except the fertilizer. This will give her accurate results.

If this helps you, please mark Brainliest! :)

How is mitosis different from meiosis

Answers

I believe Mitosis is your individual cells dividing and meiosis is you and the males cells dividing but I might be wrong I'm not good at this subject sorry

Answer:

Mitosis produces 2 daughter cells with the same number of chromosomes as the parent cell while Meiosis results in 4 daughter cells with half of their parent's chromosomes.

Explanation:

Cells divide and reproduce in two different ways that are mitosis and meiosis. The fundamental difference in both cell division is that mitosis results in 2 identical daughter cells, but meiosis results in 4 sex cells with half chromosome numbers.

In mitosis, daughter cells are genetically identical , creates all body cells apart from sex cells and no recombination occurs, whereas daughter cells are different, creates only sex cells, and recombination occurs in meiosis.

The term vestigial comes from the Latin word vestigium, which means track or footprint. Explain how this relates to the meaning of vestigal structures

Answers

A track or footprint is something that is left behind by an organism that was there before. A vestigial structure is one that had a function in a previous organism but does not have a function in the organism you’re referring to. The structure has been left behind by another organism.

How often does the body perform cellular respiration? once in the morning and once at night only at night continuously only when the body runs out of ATP

Answers

continuously

its breaking down the chemical bounds in ATP and its energy is essential for survival

Answer: Constantly

Explanation:

Cellular respiration is a kind of  metabolic process by which the carbohydrates of the body are broken down into ATP molecules in the presence of oxygen.

The energy is stored in the bonds of ATP molecules which is released when the bonds are broken.

The cells of the body needs energy continuously so the cellular respiration occurs constantly.  

Most of the rocks we study were formed in what era?
A.Cenozoic
B.Paleozoic
C.Precambrian
D.Mesozoic

Answers

Answer: Paleozoic

Explanation:

Not as many rocks existed from the precambrian era

Which is the following could be caused by a decrease in carbon fixation?

A. a decrease in the total biomass if producers in the world

B. an increase in the size of insects and arthropods

C. a decrease in total biomass of consumers in the world

D. all of these

Answers

im not 100% sure but i believe the answer is B. an increase in the size of insects and arthropods

Answer:

a decrease in the total biomass of consumers in the world

Explanation:

A decrease in carbon fixation would likely increase the amount of carbon dioxide in the air and decrease the amount of oxygen. This would change how much respiration and photosynthesis could take place, resulting in:

a decrease in the total biomass of consumers in the world,

an increase in the total biomass of producers in the world, and

a decrease in the size of insects and arthropods, since their ability to move oxygen from the air into and through their bodies is limited.

Examine the air pressure map.



Which type of line is shown on the map?

isobar
isotherm
radar
humidity

Answers

The correct answer is - isobar.

The isobars are closed lines that are connecting spots with the same air pressure, thus giving us information about the air pressure in certain places. The air pressure can be standard, low, or high. The standard air pressure is 1013.25 mbar, the low air pressure is bellow the value of the standard one, and the high air pressure is above the standard one.

The low air pressure means that there are warm air masses in the area, or more water vapor in the atmosphere, while the high air pressure means that there are cold air masses present in the area. The reason why the warm air masses have low air pressure is that they are less dense, thus have less mass, and make less pressure, while the cold air masses are denser, have more mass, and make more pressure.

The unit most commonly used for measuring the air pressure is milibar (mbar)

Answer:A

Explanation:

which statement best explains why cells separate and expel waste.
1 it releases energy necessary for organisms to survive
2 it helps in growth and repair of cells of orgasms
3 it help remove toxins from the body to maintain homeostasis
4 it helps break down glucose into useful energy in plants​

Answers

I would say the 2nd one It helps growth and repair of cells of orgasms

But your school would probably say the 3rd one It helps remove toxins from the body to maintain homeostasis

Answer:

3. it help remove toxins from the body to maintain homeostasis

Explanation:

Our cells produce a lot of waste that must be eliminated (excreted) from the body. These residues are called excreta. The residues formed from the chemical reactions that take place inside the cells can be eliminated through:

of the respiratory system (carbon dioxide) skin (sweat) urinary system (urine)

Our cells expel these substances to maintain the dynamic balance (homeostasis) of our body and promote our well-being.

Which air mass has formed immediately north of Antarctica in the image ??


Maritime Polar

Continental Polar

Maritime Tropical

Continental Tropical

Answers

Answer:

Option (1)

Explanation:

Maritime polar air masses are normally characterized by the cool, moisture containing, unstable type of air mass, that are basically found in the higher latitudes, specially near the poles. It is designated as 'mP'.  

This air masses also originates from the continental areas forming continental polar air masses over the region of Asia and it further moves in the western direction over the Pacific ocean. During this time of air, it attains the warmth and moisture from the Pacific ocean.

In addition to this, they also originate from the Northern side of the Atlantic Ocean and further move towards the southwestern direction and thereby reaches the Northeastern states.

Thus, in the given image, the air mass forming over the northern side of Antarctica is the Maritime polar air mass.

Hence, the correct answer is option (1).

Match each vocabulary word to the correct definition.
1.
Annealing
2.
Complimentary base pairings
3.
CODIS
4.
Buccal cells
5.
Chromosomes
a.
A software program that contains DNA profiles of convicted offenders, missing persons, crime scene evidence, and other sources.
b.
Pairings on the DNA strand.
c.
The process of reforming a double DNA strand.
d.
Cells from the lining of the inner cheek.
e.
Rod-like structures that contain genetic material.

Answers

Annealing --> The process of reforming a double DNA strand

CODIS --> A software program that contains DNA profiles of convicted offenders, missing persons, crime scene evidence, and other sources.

Buccal Cells --> Cells from the lining of the inner cheek

Complimentary base pairings--> Pairings on the DNA Strand

Chromosomes --> Rod-like structures that contain genetic material

Hope this helps! Message me if you need help or have any questions! :)

Answer:

Rod-like structures that contain genetic material

Explanation:

Match the object with its characteristic

Answers

Moon: Not magnetic

Compass: Permanent Magnet

MRI: Not Magnetic

Answer:

The correct matches are:  

Moon: Not magnetic

Compass: Permanent Magnet

MRI: Not Magnetic

Explanation:

Moon does not show any type of magnetism as it is not magnetic. Compass has a permanent magnet in itself. The north pole is indicated by the north pole indicator in the compass. Its needle is a free moving magnet that aligns according to the north pole.

MRI is a scan that uses strong radio waves and magnetic fields to provides fine images of inside the body. It contains two large tubes of electromagnets.

Thus, the correct answer is Moon- Not magnetic

Compass- Permanent Magnet

MRI- Not Magnetic

Which of the following is maintained across the terminals of a battery?

a) a potential difference

b) a voltage drop

c) an electric charge

d) both A and B

Answers

Answer:

Option D, both A and B

Explanation:

The potential difference is created across a battery (between its two terminal –one positive and the other one negative) when work is done to move a charge from one point to another. This potential difference is measured in volts. 1 volt is the potential difference between two points when one joule of potential energy is spent to move a charge of one coulomb from one point to the other.  

Voltage drop across a circuit is the amount of electric current lost due to resistance/ impedance with in the cables of the circuit.  

Hence, both potential difference and voltage drop occurs across the circuit,  

Option D is correct.

What two factors affected the development of new species

Answers

The development of new species is influenced by environmental conditions and geographic separation, leading to genetic isolation and speciation through adaptation to new ecological pressures and different environments.

The development of new species is primarily influenced by two factors: environmental conditions and geographic separation.

Environmental changes, such as a significant drop in water level, can cause a population to split into two groups, leading to a small subsection of the population being exposed to new ecological pressures. This smaller group's gene pool can quickly evolve if a favorable trait emerges, contributing to the rise of new species.

Additionally, geographic separation can lead to speciation by isolating portions of a population in different environments, prompting them to adapt in diverse ways. For example, mammals living in mountainous regions may evolve increased fur for the cold, while those in lowlands develop differently. Over time, these adaptations may lead to the formation of new species as these groups experience genetic isolation.

The goal of science is to explain natural phenomena .true or false

Answers

False, science aims to explain and understand. Science as a collective institution aims to produce more and more accurate natural explanations of how the natural world works, what its components are, and how the world got to be the way it is now.

Answer:

True

Explanation:

I took a test with that question and got it right.

A few drops of milk are added to a glass of water, producing a cloudy mixture. the water is still cloudy after standing in the refrigerator for a week what is this mixture called?

Answers

Homogeneous mixture

In the diagram, the top square and circle represent the _____________ generation.

A) F1
B) F2
C) G
D) P

Answers

Answer:

p

Explanation:

Answer: P generation

Explanation:

These are the P generation, that is the parental generation that gives rise to subsequent F1 and F2 generations.

Which of these would help reduce the amount of carbon dioxide produced from your answer from question 1

A). Add a plant to the flask

B). Add a goldfish to the flask

C). Remove a plant from the flask

D). Do nothing else to carbon dioxide will naturally become diluted

Answers

A, because plants consume carbon dioxide and produce oxygen

Add a plant to a flask

Identify the properties of heat as it relates to the molecules within a body

Answers

At the molecular level, the heat comes from the agitation of the molecules and therefore their atoms. This increase in agitation causes the molecules to be less condensed between them and will separate after breaks in the intermlecular bonds. This distends the material, as we see when we heat a metal, or a transformation of the phase of the material, such as melting ice or boiling water.

hypothesis on food web

Answers

does the 1st part start with the sun?

Which statement does NOT correctly describe our sun? A. Our sun is an average sized star B. Our sun is a very old star C. Our sun has an average brightness D. Our sun is yellow-white

Answers

C, because the magnitude is -26.74

Final answer:

The incorrect statement about our Sun is that it is a very old star, whereas it is actually a middle-aged yellow dwarf star with average size, brightness, and a yellow-white color, expected to remain stable for about 5 billion more years.

Explanation:

The statement that does NOT correctly describe our Sun is that 'Our sun is a very old star.' Our Sun is not considered to be very old in astronomical terms. Instead, it is a middle-aged star that has been a main-sequence star for about 5 billion years and will remain in this phase for approximately 5 billion more years. The Sun is a yellow dwarf star that is average in size, brightness, and color, described as yellow-white. Comparing a red dwarf and a yellow dwarf of equivalent size, the yellow dwarf will have a greater temperature; the assertion that this is because yellow light has lower frequency is not the reason—temperature in stars is related to the mass and internal processes rather than the frequency of the light they emit.

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