science question help?

Science Question Help?
Science Question Help?

Answers

Answer 1

Answer: The answer for question 8 would be C and the answer for question 6 would also be C.

Explanation: This is because although both the focus and epicenter describe where the earthquake was, the focus refers to the actual area on the fault that is underground and the epicenter refers to above ground.


Related Questions

experiment to show transpiration takes place in plants

Answers

Explanation:

experiment to demonstrate transpiration phenomenon with the Bell jar method

Question 3 of 10
2 Points
When can exponential growth happen?
O A. When there is unlimited food and space
B. When the death rate is high
C. When carrying capacity is reached
D. When there is competition for resources​

Answers

Answer: when there is Unlimited food and space

Explanation:

When there is unlimited food and space. Exponential growth occurs when a population has unlimited resources, such as food and space, and there are no limiting factors such as predation, disease, or competition for resources. In such a scenario, the population will continue to grow at an accelerating rate without reaching a carrying capacity. Hence option A is correct.

What is exponential growth?

Exponential growth can occur when there are no limiting factors that affect the population size. This means that the population has access to unlimited resources such as food, water, and space. In this scenario, the birth rate exceeds the death rate, and the population grows at an increasing rate over time.

As the population grows larger, the rate of growth also increases, resulting in a J-shaped curve on a graph.

However, in the real world, exponential growth is limited by factors such as predation, disease, competition for resources, and environmental factors like weather and natural disasters.

When these limiting factors are present, the growth rate of the population slows down, and the population may eventually reach a maximum size that the environment can support, known as the carrying capacity.

At this point, the population growth rate slows down to zero, and the population size stabilizes at or around the carrying capacity.

Hence option A is correct.

To know more about exponential growth:

https://brainly.com/question/1596693

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How does an artificial pacemaker work?

Answers

It sends an electrical impulse to make your heart beat. The job of a pacemaker is to artificially take over the role of your sinus node if it isn't working properly. Electrical impulses are sent by the pacemaker to stimulate your heart to contract and produce a heartbeat

A pacemaker helps monitor and control your heartbeat. The electrodes detect your heart's electrical activity and send data through the wires to the computer in the generator. If your heart rhythm is abnormal, the computer will direct the generator to send electrical pulses to your heart.

Convert 16.45 m into Kilometers

Answers

Answer:

0.01645 KM

Explanation:

1000 M = 1 KM

16.45 / 1000 = 0.01645

Hope this helps!

0.01645 this is the answer hope this helps

what statement did louis pasteur confirm with his broth e

Answers

Answer:

Pasteur observed that the broth in the straight-neck flask was discolored and cloudy, while the broth in the curved-neck flask had not changed.

Explanation:

He concluded that germs in the air were able to fall unobstructed down the straight-necked flask and contaminate the broth. The other flask, however, trapped germs in its curved neck,­ preventing them from reaching the broth, which never changed color or became cloudy.

Hope this helps.

Answer:

Pasteur observed that the broth in the straight-neck flask was discolored and cloudy, while the broth in the curved-neck flask had not changed.

A goal of using animal models is to explain the molecular detail of specific behaviors encoded in the human brain. How would you compare the developmental biology experiments on memory and learning using the fruit fly, drosophila melanogaster, as evidence about the evolution of a human behavior?

Answers

Answer:

It is possible to compare the expression of homologous genes in the brain of D. melanoganster and humans, because the expression levels of conserved genes may be associated with the evolution of cognitive features such as complex learning and memory.  

Explanation:

Model organisms can be used to understand the patterns and processes that affect human evolution. Drosophila melanogaster is a model organism that has been used to study expression patterns of conserved genes in the course of evolution. This model organism has also been used to develop genetic mutant lines in order to examine the role of genes evolutionarily conserved in animals, including those involved in neurocognitive development.

In genetic research, an experiment as the above described is framed in a research field named 'Behavioral Genetics', which is a discipline that studies how evolutionarily conserved gene networks may be associated with neurocognitive tasks during brain evolution.

Look at the chemical reaction below
Magnesium + hydrochloride acid —> magnesium chloride + hydrogen
Mg + 2HCI —> MgCI2 + H2
In this reaction
Magnesium (Mg) is a reactant or product
Hydrogen (H2) is a reactant or product
Magnesium chloride (MhCI2) is a reactant or product
Hydrochloride acid (HCI) is a reactant or product

Answers

Answer:

Mg is a reactant ,H2 is a product, MgCl2 is a product and HCl is a reactant.


What part of your brain controls all mental activities?

brain stem
medulla
cerebellum
cerebrum

Answers

Answer:

cerebrum

Explanation:

cerebrum controls reading, thinking, learning, speech and emotions

FALLING OF STONE

○ FAST CHANGE
○NATURAL DESIRABLE CHANGE
○NATURAL UNDESIRABLE CHANGE
○SLOW CHANGE ​

Answers

Answer:

answer is fast change due to free fall of object in air.

step 1: bacteria through nitrogen fixation and nitrification convert nitrogen into a usable form

Answers

Answer:

Bacteria through nitrogen fixation and nitrification convert nitrogen into a usable form to be taken up by plants.

in order to survive in its environment a single celled organism uses a contractile vacuole to remove excess water that diffuses into its cell. Another species a hydra also excretes excess water. Both processes involve the use of energy. Based on this information, state whether these two organisms live in fresh water or salt water support your answer

Answers

Answer:

They would live in salt water.

Explanation:

Salt water is a hypertonic solution where water needs to move outside of the cell because there is too much solute outside. Because the 2 organisms are removing excess water, it shows that they are living in salt water where water flows outside instead of inside the cell.

Based on the available information, these two organisms would:

Live in salt water

According to the given question, we can see that there is a need for survival which makes a single celled organism to make use of the vacuole to remove the excess water which it diffuses into its cell.

As a result of this, we can see that another specie, a hydra also excretes excess water which involves the use of energy.

Therefore, the conclusion we can reach about them is that they are living in salt water because it is a hyper tonic solution which allows water to move freely outside the cell because of the excess solute outside the cell wall.

Read more here:

https://brainly.com/question/15887615

extinction occurs when the environment changes and

Answers

Answer:

a population dies out

Explanation:

when the environment changes causes the animals or living specimens to die out

hi how old am i What is the dominant religion in North and South America? A. Islam B. Judaism C. Hinduism D. Christianity Please select the best answer from the choices provided

Answers

Answer:

D. Christianity

Explanation:

D. Christianity :) have a nice day!

Which statement best describes the kinds of questions science can answer ?

Answers

Answer:

option A

Science can answer only questions about the natural world

Explanation:

Science is a discipline which on the basis of implementation of experimentation procedure that can mimic the experimental setup resembling that of natural world. Therefore, is capable of answer questions about the natural phenomenas occurring in the natural world.

Answer:

option A.

Explanation:

That's because Science mainly deals with the study of the structure and behaviour of the physical and natural world through observation and experiments.

Which type of nonvascular plant grows in new or disturbed environments?

A. mosses
B. ferns
C. hornworts

Answers

Answer:

A.mosses

Option A is the right answer


Definition: In ecosystems, this is the breakdown of organic matter to its basic chemical components.

Answers

Answer:

Decomposition :)

Explanation:

Answer:

It is decomposition

Explanation:

Which one of these contains an atom of phosphorus?
Nitrogenous base Pentose Sugar Phosphate Group

Answers

Nitrogenous base i think

(1) What will be the frequency of the recessive allele in a population of 100 kangaroos if there are 50 dominant alleles?

a. 150

b. 0.75

c. 0.50

d. 0.25


(2) If the frequency of the recessive allele for a gene is 0.3, calculate the expected frequency of heterozygotes in the next generation if the population is in Hardy-Weinberg equilibrium.

a. 0.42

b. 0.21

c. 0.70

d. 0.30

Answers

Answer:

1. Option c

2. Option a

Explanation:

1. If there are 50 dominant alleles, this represent the frequency of dominant alleles p = 50/100 = 0.5

Using the formula p+q = 1 we can solve for the frequency of the recessive alleles q = 1 -0.5 = 0.5 = 50%.

2. the frequency of the recessive allele for a gene is 0.3 which is q = 0.3

From the Formula p + q = 1 we can solve for p the frequency of the dominant alleles = 1 - 0.3 = 0.7

To calculate for the number of heterozygotes, we use 2pq = 2 x 0.7 x 0.3 = 0.42

what does the m stand for in interphase

Answers

M stands for mitosis. This is where the cell actually partitions the two copies of the genetic material into the two daughter cells. After M phase completes, cell division occurs and two cells are left, and the cell cycle can begin again.

Answer:

I believe the answer is mitosis

Explanation:

Hope this helps.

In the text area below describe the function of the
cell wall.
DONE

Answers

The cell wall gives cells shape, enables plant growth, prevents bursting from water pressure, keeps out water and pathogens, stores carbohydrates and sends signals to cells. The flexible cell wall surrounds plant cell membranes.

Plant cell walls perform many functions. Their main task is to support proper plant growth. This is accomplished by the cell wall creating a skeleton-like frame that enables plants to grow vertically and develop a rigid stem. Cell walls vary considerably in thickness and organization, which accounts for the wide range of plant shapes and sizes on the planet. They consist of two layers ‰ÛÓ a primary cell wall, which supports the cell as it matures, and a rigid secondary cell wall that appears after the primary wall stops growing. The primary cell wall is thinner and more flexible than the secondary wall. Internally, the primary and secondary walls have a similar physical composition. Over the course of a plant's life, they perform complementary functions to keep the plant healthy and vibrant.

Answer:

The cell wall supports and protects the cell, determines the shape of the cell, assists cells in communication, stores carbohydrates, and allows water and smaller particles to enter the selectively permeable structure of the cell.

Which component of a DNA synthesis reaction determines the exact nucleotide sequence of the product?

Answers

Answer:

The complementary base pairing between incoming nucleotides and the DNA template

Explanation:

In a DNA synthesis reaction, the exact nucleotide sequence of the product is basically determined by both the DNA template from which a new strand is made and the incoming new nucleotides that makes up the new DNA strands. A complementary base Paris between these two gives the nucleotide sequence of the product.

Pre-Test
Active
TIME REMAININ
1
2
46:50
Chan Hee is inflating a basketball using an air pump. He notices that the pump gets warm as he uses it. What is a good
hypothesis that could lead to new experimentation?
If there is no air in a basketball, then it is hard to play the game.
A basketball that is inflated bounces better than one that is not inflated.
If air in a pump is squeezed more, then the air gets hotter because energy is added to it.
Basketball is more fun to play than baseball because you have to move a lot more.

Answers

Answer:

If air in a pump is squeezed more, then the air gets hotter because energy is added to it.

Explanation:

A good hypothesis in the given case is that inflating basketball is getting warmer, the more it is pumped, and as a result, it would possess more heat or more friction due to all the air being pumped into the basketball at a single time.  

hope this helped!

_______ is a primary developmental goal underlying the 10 principles on which the textbook is based.
A. Security and trust
B. Quantity of development
C. Directive opportunity
D. Teaching behavior

Answers

A.Security and trust
a , security and trust

1 pc
If
you are given a quadrat of 1.5 square meters and you count the
dandelions in 10 quadrats and find an average of 2 dandelions per quadrat
area. Use this information to estimate the population density of dandelions
per square meter in a 4500 square meter open field. (make your answer
just the number, round to the nearest 2 decimal places) *
Your answer
In a stable population of rabbits and wolves a government agency enacts a 1 point

Answers

Answer:

1.33 dandelions per square meters

Explanation:

The correct answer would be 1.33 dandelions per square meter of land.

Size of quadrat = 1.5 square meters

Average number of dandelions per quadrat = 2

Total study area = 4500 square meter

Population density = number of organisms per unit area

There were 2 dandelions per 1.5 square meters

How many would be per square meter?

= 2 x 1/1.5 = 1.3333 dandelion per square meters

To 2 decimal places = 1.33 per square meters

______________ surround each stoma and control its size.

A. Spongy Layer
B. Guard Cells
C. Palisade Layer

Answers

Answer:

The answer is B.

Explanation:

Guard cells is nearest to stomata which surround each stomata and control the size of stomata.

Which two types of clouds extend vertically through the troposphere?

Answers

cumulus
, and

cumulonimbus clouds

That would be my best guess, hope you get everything you needed :)

A plant cell is placed in a freshwater solution. When it swells with water, filling it's vacuole,


we say that it has



A)crenated


B)plasmolyzed


C)lysed


D)become turgid

Answers

Answer:

D. The plant becomes turgid

Explanation:

Use the drop-down menus below to identify the organ(s) that is/are responsible for each function of the
excretory system.
releases excess heat from body
reabsorb water to maintain normal composition and volume of blood
and fluids and prevent dehydration
excrete wastes that balance salt

Answers

Explanation:

releases excess heat from the body, which would be sweat glands, excretory system/

reabsorb h2o 2 maintain norm. composition, volume of blood=kidneys.

Answer:

1.skin

2.kidneys and large intestine

3.skin, large intestine, and kidneys

Explanation: got it right

how do electrons gain energy in photosystem 1?

Answers

Answer: they absorb photons from sunlight.

Explanation:

Answer:

They absorb photons

What are the inputs and outputs of cellular respiration and photosynthesis?
energy
water
oxygen
sugar
carbon
dioxide
Photosynthesis
Cellular Respiration
Inputs
Outputs

Answers

Photosynthesis

inputs : water , carbondioxide,

outputs: oxygen, sugar

Cellular respiration

inputs : sugar, oxygen

outputs: water, carbon dioxide

Other Questions
Choose four sounds that are members of a natural class of English phonemes, and explain their shared features in square brackets. Saved250 mgsing value in50 mg10 mlXChoice world environment day speech for class 7 We wish to find the probability that a child from this population who has inadequate calcium intake is 11 to 13 years old. In other words, if you know that a child has inadequate calcium intake, what is the probability that the child is between 11 and 13 years old New Yorks finger lakes exist today because the sum of two integers is 19. the larger of the two numbers is 3 more than 3 times the smaller integer. what are the integers hank scored 10% extra on his 30 point assignment how many extra points did he earn? What is a limitation of first-person narration in a story?O A. The reader does not feel a connection to the narrator.B. The reader is too far removed from the story's action.O c. The thoughts of too many characters are displayed.O D. The other characters' views and thoughts are left out. How would you go on dividing 7/893 Which equation can be solved using the expression StartFraction negative 3 plus-or-minus StartRoot (3) squared + 4 (10) (2) EndRoot Over 2 (10) EndFraction for x? City Middle School held its annual musical production last weekend. Of the 700 tickets sold, 55% were for the Saturday performance. How many tickets were sold for the Saturday show?City Middle School held its annual musical production last weekend. Of the 700 tickets sold, 55% were for the Saturday performance. How many tickets were sold for the Saturday show? If a man weighs 300 pounds on Earth, his mass on Earth is 136 kilograms. What would his mass be if he was on the moon? The mean percent of childhood asthma prevalence in 43 cities is 2.32%. A random sample of 32 of these cities is selected. What is the probability that the mean childhood asthma prevalence for the sample is greater than 2.8%? Interpret this probability. Assume that sigmaequals1.24%. The probability is nothing. Isabella files her income tax return 35 days after the due date of the return without obtaining an extension from the IRS. Along with the return, she remits a check for $40,000, which is the balance of the tax she owes.Note: Assume 30 days in a month.Disregarding the interest element, enter Isabella's failure to file penalty and and failure to pay penalty. Which two atoms form a covalent bond? A. A sodium and chlorine atom B. Two oxygen atoms C. Two sodium atoms D. An iron and oxygen atom Lesson 9: Problem Solving When the Percent ChangesExit TicketTamia and Laniece were selling magazines for a charity. In thefirst week, Tamia sold 30% more than Laniece. In the secondweek, Tamia sold 12 magazines, but Laniece did not sell any. IfTamia sold 50% more than Laniece by the end of the secondweek, how many magazines did Laniece sell? Choose anymodel to solve the problem. Show your work to justify youranswer. Please answer this correctly Expand the logarithm fully using the properties of logs. Express the final answer in terms of log x, and log y. log x^3 y^4 Asset management ratios are used to measure how effectively a firm manages its assets, by relating the amount a firm has invested in a particular type of asset (or group of assets) to the amount of revenues the asset is generating. Examples of asset management ratios include the average collection period (also called the days sales outstanding ratio), the inventory turnover ratio, the fixed asset turnover ratio, and the total asset turnover ratio. Consider the following case: Walker Telecommunications has a quick ratio of 2.00x, $35,550 in cash, $19,750 in accounts receivable, some inventory, total current assets of $79,000, and total current liabilities of $27,650. The company reported annual sales of $200,000 in the most recent annual report. Over the past year, how often did Walker Telecommunications sell and replace its inventory?a. 8.01 x b. 5.24 x c. 2.85 x d. 4.75x Letts Corporation manufactures and sells a single product. The company uses units as the measure of activity in its budgets and performance reports. During January, the company budgeted for 7,000 units, but its actual level of activity was 6,970 units. The company has provided the following data concerning the formulas to be used in its budgeting: Fixed element per month Variable element per unit Revenue $ 30.40 Direct labor $ 0 $ 6.10 Direct materials 0 8.70 Manufacturing overhead 46,700 1.80 Selling and administrative expenses 27,800 0.20 Total expenses $ 74,500 $ 16.80 The selling and administrative expenses in the planning budget for January would be closest to: