4. What is population density?​

Answers

Answer 1

Answer:

The amount of living organisms in a set area, usually humans. Like the maps that show purple is no people red is lots of people.

Answer 2

Answer:

Population density is the number of individuals per unit geographic area, for example, number per square meter, per hectare, or per square kilometer.

Explanation:

Hope this helps my dude.


Related Questions

The Sun is the primary source of energy that drives all the biogeochemical cycles on Earth. Which statement best describes how the Sun’s energy powers the water cycle?
A.
Plants require energy from the Sun to perform photosynthesis.
B.
The Sun's heat reflects off ice sheets near the polar caps, reducing the overall temperature of Earth.
C.
Heat from the Sun drives evaporation, turning water on Earth's surface into water vapor.
D.
Energy from the Sun provides the warmth necessary for cold-blooded animals to survive.

Answers

Answer: A

Explanation:

Answer:

C) Heat from the Sun drives evaporation, turning water on Earth's surface into water vapor.

Explanation:

The question is discussing water cycle, so the answer must be something to do with water. Option A talks about to photosynthesis in plants, which is not directly related to the water cycle. Option B discusses earth temperature, which is again not related to the water cycle. Finally, option D talks about the living requirements for cold blooded, again not related to water cycle. That leaves option C.

How many days does each lunar phase last? Explain your claim with reasoning.

Answers

Answer:

29.5 Days.

Explanation:

The Moon takes 27.3 days to orbit Earth, but the lunar phase cycle (from new Moon to new Moon) is 29.5 days.

7 days…because g.o.o.g.l.e said so.

I actually don’t know the reasoning but it’s definitely 7 days total.

Drag the appropriate labels to their respective targets. Label processes on the right in PURPLE, and all other components on the left.

Answers

Starting from the top downward:

Group 1:

TranscriptionRNA processingTranslation

Group 2;

DNAPre-mRNAmRNARibosomePolypeptide

The entire setup represents what happens during gene expression. The process starts in the nucleus with genetic information in DNA being transcribed into mRNA.

The pre-mRNA undergoes some processing before being transported to the cytoplasm where it gets attached to the ribosome and utilized in the synthesis of polypeptides (also known as proteins) in a process known as translation.

More on gene expression can be found here: https://brainly.com/question/10706638

A hormone signals through a G protein-coupled receptor as shown in the diagram. After the production of IP3, which of these events will MOST quickly stop the transduction of the signal?
A. the hydrolysis of IP3
B. the hydrolysis of GTP
C. the hydrolysis of PIP2
D. the hydrolysis of the hormone

Answers

Answer: The answer is A

Explanation: Took the test lol

The quickest halt to the signal transduction process after IP3 production occurs through the hydrolysis of IP3 itself, as option A.

The hydrolysis of IP3 results in the quickest termination of the signal transduction pathway among the available alternatives. A series of actions are triggered by IP3, which causes the release of calcium ions from intracellular reserves. IP3 is hydrolyzed by phosphatases, which halts the calcium release and prevents protracted signaling.

Even while the hydrolysis of GTP and PIP2 is a necessary step in the cessation of G protein-coupled receptor signaling, it happens later and does not have the same rapid effects as IP3 hydrolysis. The hormone's own breakdown is not a known mechanism for halting signal transmission.

To know more about signal transduction here https://brainly.com/question/30449991

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Thyroid hormone receptor (TR) regulates growth, development, and differentiation of mammals. TR contains both a domain that binds to T3, the thyroid hormone, and a separate domain that binds to DNA. Which of the following BEST explains how TR signals?
A. T3 binds to TR at the cell membrane, which then releases second messengers to regulate gene expression.
B. T3 binds to DNA at the cell membrane, which then releases second messengers to regulate gene expression.
C. T3 diffuses through the cell membrane to bind to TR, which then binds to DNA to regulate gene expression.
D. T3 diffuses through the cell membrane to bind to DNA, which then binds to TR to regulate gene expression.

Answers

Answer:

C. T3 diffuses across the cell membrane, attaches to Tr, and then binds to DNA to control gene expression.

Explanation: Thyroid hormone, as a ligand, diffuses across the plasma membrane, then searches for the nucleus TR (Thyroid receptor and RxR aie heterochimeric bind to DNA).

When Thyroid Hormone binds to the A domain of T3, Corepressor Proteins are removed, which stimulates gene transcription.

Which of these plant cell structures is also found in a prokaryote?

A
B
C
D

Answers

If you could provide the choices for the answer options please?

How many pairs of cranial nerves do humans have?
(a) 12 (b) 31 (c) 21 (d) 16

Answers

Answer:

A

Explanation:

correct me if I'm wrong thanks

What is the process of obtaining food for energy?

Answers

Answer:

photosynthesis

Explanation:

4. At night a similar event takes place (as that described in #3 above). As the sun goes down,
the air contains a certain amount of water vapor. The air then begins to cool
and eventually the air reaches the dew point. What is the dew point and what would form
at this point?
100points?

Answers

Answer:

its t0 wlsllslseopwpwooop

approximately_____ element's occur naturally on earth​

Answers

Answer:

approximately chemical elements naturally occur on earth

Answer:

About 92 I believe

Explanation:

Where in a cell would you most likely find DNA?

Answers

Your answer is → compartment within the cell called a nucleus

In a cell, DNA would most likely be found inside the nucleus which is known as the controlling center of the cell.

What is DNA?

DNA stands for Deoxyribonucleic acid. It is considered the most common genetic material of living organisms. The genetic information of a particular organism is encoded with these segments, known as DNA.

The process of transcription is initiated within the nucleus of the cell which transforms DNA into mRNA. It is known as the brain of the cell. Due to compartmentalization in eukaryotic organisms, a well-defined nucleus has appeared which helps in the transfer of genetic information from one generation to the next.

Therefore, the nucleus is the region where DNA is most likely found within the cell.

To learn more about the Nucleus, refer to the link:

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What are some explained examples of pathways on how cells obtain energy.

Answers

Answer:

Catabolic pathways release the energy stored in complex molecules through the breakdown of these molecules into simpler compounds. Anabolic pathways, sometimes called biosynthetic pathways, require energy to combine simpler molecules into more complicated ones.

Exergonic reaction proceeds with a net release of free energy and is spontaneous. Endergonic reactions are nonspontaneous; they must absorb free energy from the surroundings.

Enzymes are biological catalysts agents that speed the rate of a reaction but are unchanged by the reaction

Investment of activation energy is known as a free energy of activation where the energy that must be absorbed by reactants to reach the unstable transition state, in which bonds are likely to break, and form which the reaction can proceed.

Kinetic energy is the relative motion of object whereas potential energy is the energy an object not in motion still possess

Explanation:

hope it helps

have a nice day : )

At what age will most adults experience decreased ROM

Answers

For instance, due to the normal aging process, muscle properties decline about 30–50% between the ages of 40 and 80 years old; this decline may result in reduced range of motion (ROM), reduced muscle strength, and diminished plantar tactile sensation leading to alteration in plantar loading responses3).

Answer:

between the ages of 40 and 80 years old

Explanation:

The physical act of moving air into and out of the lungs is called:

Answers

The physical act of moving air into and out of the lungs I called ventilation or breathing.

I hope this helps

What organisms use the carbon dioxide produced by animals

Answers

Answer:

It is produced by almost all living organisms (both plant and animal). It is given off, (exhaled) into the air every time we breathe. Even organisms without lungs or gills release carbon dioxide into the environment. This includes insects, plants, bacteria, etc.

Every year, 25 km 3 of sand is deposited on a beach by a nearby river, and 28 km 3 of sand is removed by wave action. Is the size of the beach increasing or decreasing? Explain your answer.

Answers

If 25 km3 of sand is deposited on a beach yearly and 28 km3 of sand is removed by wave action, the size of the beach would be decreasing, not increase.

First, there is a need to understand that the size of a beach is a function of the amount of sand deposited into it. The more the sand deposited, the more the beach would increase in size.

In this case, 25 km3 of sand is deposited annually but 28 km3 of sand is washed away by waves. The net amount of sand deposited can be calculated by subtracting the amount washed away by waves from the amount deposited. Thus

Net sand deposited = 25 - 28

                                     = -3 km3

Hence, the net amount of sand deposited annually is negative, meaning that the beach would decrease in size.

More on land formation can be found here:  https://brainly.com/question/469070

Why is the surface temperature of the ocean usually greater than the temperature on the ocean floor?

Answers

Answer:

Cold, salty water is dense and sinks to the bottom of the ocean while warm water is less dense and remains on the surface.

Cold water is a higher density in warm water.

The actual amount of heat generated per square meter of earth is quite small, especially compared to the amount of heat necessary to warm the ocean.

How does the friction affect the total time a pendulum is in motion? And what could cause this friction in the real world?

Answers

Answer:

Without friction, the equation of motion for a pendulum of length L is,

md2θdt2+mgsin(θ)L=0.

Or for small oscillations, (i.e., sin(θ)≈θ),

md2θdt2+mgθL=0.

Assuming an initial angle θ0 and a pendulum that starts at rest, the solution to this differential equation is,

θ(t)=θ0cos(gL−−√t).

Frictional force adds an additional damping term into the equation of motion,

md2θdt2+λdθdt+mgθL=0,

where λ is a coefficient of kinetic friction.

Assuming an initial angle θ0 and a pendulum that starts at rest, the solution to the damped differential equation is,

θ(t)=θ0e−12λmtcos((gL−λ24m2−−−−−−−−√)t).

(Note: If you would like to consider closed form solutions for large angles, I would recommend consulting the mathematics section. The solutions to that problem are called elliptic integrals of the first kind.)

Friction decreases the total time that a pendulum is in motion.

If we consider a pendulum in motion, in accordance with Newton's law, the pendulum will continue moving unless it is acted upon by an external force.

In the case of the pendulum, the external force that acts on it is the air resistance or friction. As a result of this friction, the pendulum will eventually come to a stop.

In the real world, the surface of objects cause friction which causes moving objects to stop.

Learn more: https://brainly.com/question/18754989

Why is the abundance of viruses in water
directly related to the abundance of microbial life
in the water?

Answers

Answer

viruses kills cells and microorganisms can thrive where other species have been wiped out.

Explanation:

Microorganisms can flourish in areas where other species have been  off because viruses damage cells.

In how many viruses is a  of salt water contained?

Viruses are the most prevalent creatures in the water, despite their seeming insignificance. One milliliter of coastal water that has been gathered from the ocean's surface contains up to 10 million.

In oxygen and hydrogen—which make up the water molecule—abound in large quantities. A typical salt that includes both sodium and chlorine is called sodium chloride. Many of the dissolved substances found in the ocean come from the crust of the Earth.

Through the process of photosynthesis, which involves the use of sunlight, nutrients, carbon dioxide, and water, phyto plankton produce oxygen and food for other organisms. the planet's seas, which cover 71% of it.

learn more about viruses refer

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6. Alteration so that some of the proteins original properties are diminished or eliminated is:

a. Activation energy
b. Denatured
C. Catabolism
d. Anabolism

Answers

B, denaturing. Denaturing is the process in which proteins lose their native fold. The native fold is what gives each amino-acid sequence chain their function.

in humans, the inheritance of what is best explained as being codominant

Answers

Answer:

height

Explanation:

Which of the followWhich of the following correctly match a convection current in an Earth system to the primary source of energy for that convection current?

A
the atmosphere: global wind patterns -> source: solar radiation

B
the hydrosphere: global ocean currents -> source: solar radiation

C
all of the above

D
the geosphere: plate tectonics -> source: radioactive decay of elements in Earth’s coreing is a beneficial effect of volcanic eruption?

is for enviromental systems

Answers

Explanation:

Looking at the Ecological concept of Modern Ecology

we have

Atmosphere, Lithosphere, Biosphere, Niche, Environment, Habitat, Population, Ecosystem and Biotic community

Hydrosphere and Geosphere are not part

so Atmosphere is the correct answer

Giving brainliest too correct answer

Answers

Answer:

A.) Different ideas from different scientists.

Explanation:

5. Look at the highlighted portion of the graph. Which of the following is the best explanation for what is occurring within the population during this time period? A. birthrate > death rate B. birthrate < death rate C. birthrate = death rate

Answers

Answer:

A. birthrate > death rate

Explanation:

I had this question and this was the right answer

Which of the following best describes sickle-cell anemia?
O Caused by environmental factors that an individual was exposed to during pregnancy.
O A hereditary genetic mutation that causes a resistance to malaria.
O An inherited disorder that increases the risk of contracting malaria from mosquitos.
O A genetic mutation that is inherited from a dominant allele of one parent.

Answers

Answer: The answer should be B "O A hereditary genetic mutation that causes a resistance to malaria."

Explanation:

I do FLVS also you can find this out in your lesson 3.04 on page 5.

It says, "Sickle-cell disease is a genetic disorder that gives red blood cells a crescent shape instead of the typical disk shape. Sickle cells are stiff and sticky. They tend to block blood flow in the blood vessels of the limbs and organs. Blocked blood flow can cause pain, serious infections, and organ damage. This genetic disease is recessive, meaning the allele must be inherited from both parents to be expressed in a person’s phenotype. It is caused by a mutation in the gene that produces hemoglobin, the blood’s principle oxygen-carrying protein. Sickle-cell disease occurs more commonly in people and descendants from tropical and subtropical regions where malaria is common. Scientists have discovered that individuals with just one allele for sickle-cell disease are not only healthy, but they actually have a high resistance for the parasite that causes malaria. This resistance gives the carriers of one sickle-cell allele a great advantage over malaria, which claims more than a million lives each year, and explains why the allele for this dangerous genetic disease survives to be passed down to future generations."

Have a great day hope this helped!!!

:3

The sickle cell gene is inherited and results in sickle cell disease. You cannot catch HPV from an infected person because it is not brought on by whatever the parents did either before or during the pregnancy. Thus, option B is correct.

What are the characteristics of sickle-cell anemia?

Red blood cells are typically disc-shaped and sufficiently flexible to pass readily through blood arteries.

Red blood cells with sickle cell disease have a crescent or “sickle” shape. Because sickle cells impede blood flow to particular organs, sickle cell disease complications can develop.

The severe side effects include stroke, acute chest syndrome, organ damage, various disabilities, and even early death. Acute chest syndrome lowers the blood's oxygen content.

Therefore, A hereditary genetic mutation that causes a resistance to malaria.

Learn more about sickle-cell anemia here:

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A hair consists of two parts: a follicle and a shaft

Answers

Answer:

ur answer is in the screenshot below.

Explanation:

se presenta cuando un dividuo se alimenta de una parte del cuerpo de otro individuo conocido como huésped u hospedero Cuál es el organismo ​

Answers

Answer:

El parasitismo ocurre cuando un individuo, el parásito, se beneficia de otro individuo, el anfitrión, mientras daña al anfitrión en el proceso. Los parásitos se alimentan de tejidos o fluidos del huésped y se pueden encontrar dentro (endoparásitos) o fuera (ectoparásitos) del cuerpo del huésped (Holomuzki et al. 2010).

how many moles of water are produced?​

Answers

Answer:

10.86 moles of water are produced

Hope it helps!

28. Many biochemical reactions in living systems would occur at a rate too slow to sustain life without
the action of enzymes. What function do the enzymes perform?
A.
Inhibitor
C.
Catalyst
B.
Product
D.
Reactant

Answers

I think it would be catalyst but I’m not sure

Which of the following was likely present in Earth's early atmosphere over four billion years ago?

Group of answer choices

Presence of DNA molecules

Very hot temperatures

Low levels of ultraviolet radiation

Abundance of oxygen

Answers

Answer:

low levels of ultraviolet radiation ;)

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What are some environments or countries that you can think of that have extreme conditions? plsss help giving brainliest and 100 points Minutes That MatterBy Kristina WaltzAs a teenager, whenever you have gone out with friends or traveled away from home, you've likely been asked to call and check in every once in a while. Most of us probably don't think much about doing so. We may even talk on the phone with friends or family members several times a day. But pretend for a moment that you are a soldier in the military. You have been sent overseas for several months, away from all of your family and friends, in order to serve your country. You might imagine that the ability to call home and talk with your loved ones would be something to look forward to. But what if those phone calls left you with a $7,600 phone bill?When 14-year-old Brittany Bergquist and her 12-year-old brother Robbie, of Norwell, Massachusetts, saw a news story about a soldier who found himself with just this problem, they decided to help. Robbie recalls, "We were taken aback and wanted to make sure he didn't have to pay that cell phone bill!" They began by raising money. Brittany and Robbie donated 14 dollars of their own savings and collected seven dollars from friends. A local bank heard about what they were doing and donated $500. But $521 was nowhere near the amount needed to help the soldier pay his bill. So Brittany decided to send donated cell phones to the soldiers. This way, they would have their own phone to use when calling home, which would be less expensive. Brittany and Robbie collected as many old cell phones as they could. But there was a problem. Because of security concerns, the Pentagon would not allow the phones to be sent overseas. 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Multiply.(2.04)(4.3)Enter your answer in the box. At the end of the semester, Andrea has to give an oral report in front of the whole class. She practices, but when she stands up, she gets so nervous she drops all of her notes. She is embarrassed and cannot seem to put them back in the proper order. After the presentation, she whispers to her classmate, "This is the worst day ever. I am so embarrassed.What response would express empathy toward Andrea?Hopefully you will still get a good grade.I dont think anyone was paying attention anyway.That looked really painful. Do you want to talk?Next time, have a backup plan.