Energy flow in an ecosystem is best represented by
a. the predator/prey relationship
b. food chains
C. food webs
d. autotrophs

Answers

Answer 1

Answer:

It's actually C. food webs

Explanation:

took the test

Answer 2

Answer: c

Explanation:

edge 2020


Related Questions

Which organelle packages materials and distributes them throughout the cell?
O lysosome
O chloroplast
O Golgi body
O cell membrane

Answers

Answer:

golgi body

Explanation:

i took the test

Organelle packages materials and distributes them throughout the cell through the Golgi body (also known as the Golgi apparatus or Golgi complex). The correct option is C.

The Golgi body plays a crucial role in the packaging, modifying, and sorting of proteins and lipids synthesized in the endoplasmic reticulum (ER). It receives these molecules from the ER and then modifies them, such as by adding sugars or lipids. The Golgi apparatus then packages these molecules into vesicles and distributes them to their appropriate destinations within the cell, such as other organelles or the cell membrane.

A. Lysosome: Lysosomes are organelles responsible for the digestion of waste materials, cellular debris, and foreign substances. They contain enzymes that break down various molecules. Lysosomes are not involved in packaging and distributing materials throughout the cell.

B. Chloroplast: Chloroplasts are organelles found in plant cells responsible for photosynthesis, the process by which sunlight is converted into chemical energy. Chloroplasts are involved in producing energy-rich molecules (such as glucose) rather than packaging and distributing materials within the cell.

D. Cell membrane: The cell membrane (also known as the plasma membrane) is a semipermeable barrier that surrounds the cell, separating its internal environment from the external environment. While the cell membrane controls the entry and exit of substances into and out of the cell, it is not directly involved in packaging and distributing materials within the cell.

Therefore, the Golgi body is the correct answer as it specifically carries out the task of packaging and distributing materials throughout the cell.

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If Justin races his Chevy S-10 down highway 37 north for 2,560 meters in 60 seconds, what is
his velocity? a. Draw Justin's trip. What are his distance and displacement? b. The Chevy S-10
started rounding at 10 meters per hour. What is the acceleration at 30 seconds on the
highway? c. The S-10 has a force of 30 N. What is the mass of the car?

Answers

Answer:

A.) 42.7 m/s

B.) 0.33 m/s^2

C.) 90 kg

Explanation:

A.) If Justin races his Chevy S-10 down highway 37 north for 2,560 meters in 60 seconds, what is his velocity? 

Velocity = displacement/time

Velocity = 2560/60

Velocity = 42.67 m/s

B.) The Chevy S-10 started rounding at 10 meters per hour. What is the acceleration at 30 seconds on the highway?

Acceleration = velocity/time

Acceleration = 10/30

Acceleration = 0.33 m/s^2

C.) The S-10 has a force of 30 N. What is the mass of the car?

Force = mass × acceleration

30 = mass × 0.33

Mass = 30/ 0.33

Mass = 90 kg

a marble is shot horizontally from a table .8 m High, and it lands, 1.2 meters away horizontally. what was the initial velocity of the marble as it left the table

Answers

Answer:

3 m/s

Explanation:

First, find the time it takes to land.

Given in the y direction:

Δy = 0.8 m

v₀ = 0 m/s

a = 10 m/s²

Find: t

Δy = v₀ t + ½ at²

0.8 m = (0 m/s) t + ½ (10 m/s²) t²

t = 0.4 s

Next, find the velocity needed to travel 1.2 m in that time.

Given in the x direction:

Δx = 1.2 m

a = 0 m/s²

t = 0.4 s

Find: v₀

Δx = v₀ t + ½ at²

1.2 m = v₀ (0.4 s) + ½ (0 m/s²) (0.4 s)²

v₀ = 3 m/s

Match each physical property of matter to the appropriate definition
conductivity
density
buoyant force
solubility
boiling point

Answers

probably a little late on this but the dude got everything wrong heres a screenshot of the answers.

Solubility: the ability of a substance to dissolve in another.

Density: the amount of mass in a given volume.

Buoyant force: the upward force on an object in a fluid.

Conductivity: the ability of a substance to transfer heat or electricity.

Boiling point: the temperature at which a liquid becomes a gas.

Solubility can be defined as a measure of how readily a substance dissolves in a solvent to form a solution.

Hence, a substance is typically considered to be soluble if it is able it dissolve completely in a solvent.

Density can be defined as mass all over the volume of an object.

Simply stated, density is mass per unit volume of an object.

Buoyancy can be defined as an upward force created by the fluid (liquid) displaced by an object.

Conductivity can be defined as the ability of an object, substance or body to transfer heat or electricity to another.

Boiling point is the temperature at which a physical matter changes phase from liquid to gas.

For example, the boiling point of water is 100 degree Celsius (100°C).

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Calculate the change in time for each quarter of the track. Record the change in time in Table E of your Student Guide. The change in time for the first quarter is seconds. The change in time for the second quarter is seconds. The change in time for the third quarter is seconds. The change in time for the fourth quarter is seconds.

Answers

Answer:

Answer:first 1.39

second 0.78

third 0.64

fourth 0.54

Explanation:just did it

Explanation:

Answer:

this is it

Explanation:

This is a sign of a chemical reaction that involves a new color being created during the reaction.

Answers

Answer:

The five conditions of chemical change: color change, formation of a precipitate, formation of a gas, odor change, temperature change.

Submit the assignment following the instructions in the lesson assessment 01.05 measuring physical properties ​

Answers

Answer:jeff gordon is a boss

Explanation: i am so cool thats how i know its correct

Which of the following is a hypothesis?
A. Squid sometimes squirt ink.
B. What is a reason for squid to squirt ink?
C. If a squid is attacked by a predator, it will squirt ink.
D. All of the evidence accumulated by scientists over many years
shows that squid squirt ink to defend themselves.

Answers

Answer:

C

Explanation:

Hypothesis is one of the science methods. Hypothesis is the same as guessing. It's a scientific method that precedes observations.

According to the question asking that Which of the following is a hypothesis ?

The correct option is C which is

If a squid is attacked by a predator, it will squirt ink

It is an hypothesis because there is no experimental evidence to back it up.

Which option gives an object's volume in Sl units?
A. 3.4 L
B. 2.6 m3
C. 5.5K
D. 4.3 kg

Answers

Answer:

B.

Explanation:

K is the SI unit for Kelvin which measures temperature.

kg is NOT an SI unit, g is the SI unit for mass.

L is NOT an SI unit, m^3 is the SI unit for volume.

Therefore the answer is B.

a 12 lb bowling ball goes faster than a 15lb ball when thrown with the same force. Why is this Newton's 2nd law of motion? Please I need an explanation.

Answers

Answer:

This is Newton's 2nd law of motion because Newton's second law pays more attention to the mass of the object and amount of force is being put from the object.

You are driving down a two-lane road at 45 mph. The oncoming vehicle�s right wheels drop off the pavement. The most likely occurrence is...

Answers

Answer:

a)The vehicle will enter your lane

Explanation:

The complete question is

You are driving down a two-lane road at 45 mph. The oncoming vehicle's right  wheels drop off the pavement. The most likely occurrence is...

a)The vehicle will enter your lane

b)The vehicle will continue on the shoulder of the road.

c)The vehicle will spin out and hit a tree.

d)The vehicle will return smoothly back onto the road.

The dropping off of the oncoming vehicle's right wheel off the pavement will force the driver to overturn to the left towards you, and this might lead to the vehicle entering your own lane.

The mercury manometer of fig. P2.57 indicates a differential reading of 0.30 m when the pressure in pipe a is 30-mm hg vacuum. Determine the pressure in pipe


b.

Answers

Answer:

The pressure in pipe b is 33.4 kpa.

Explanation:

Given that,

Pressure in pipe a = 30 mm hg vacuum

Differential reading = 0.30 m

We need to calculate the pressure in pipe b

Using diagram

[tex]P_{B}+W_{oil}(h_{1}+h_{2})-W_{Hg}(h_{2})-W_{H_{O}}(h_{1})=P_{A}[/tex]

Where, P = pressure

W= specific weight

Put the value into the formula

[tex]P_{B}+W_{oil}(0.15+0.30)-W_{Hg}(0.3)-W_{H_{2}O}(0.15)=-W_{Hg}(0.030)[/tex]

Put the value of specific weight

[tex]P_{B}=-(133)\times(0.030)-(8.95)\times(0.45)+133\times(0.3)+9.80\times0.15[/tex]

[tex]P_{B}=33.4\ kPa[/tex]

Hence, The pressure in pipe b is 33.4 kpa.

Urination is one of the key mechanisms for losing fluid from the human body.

Answers

This is a true statement

Answer:

TRUE. so is breathing, sweating

hope this helped :)

why should we conserve biodiversity​

Answers

Biodiversity conservation protects plant, animal, microbial and genetic resources for food production, agriculture, and ecosystem functions such as fertilizing the soil, recycling nutrients, regulating pests and disease, controlling erosion, and pollinating crops and trees.

Why do u think women basketball is not as popular as men’s basketball

Answers

Answer: Look, the main difference between men's and women's college basketball is the attention the programs and players get. The women's ball is slightly smaller than the men's ball. ... Men get a thirty-five-second shot clock, while women only get a thirty-second shot clock.

Not as many women play sports as compared to men and many ... ... or Women's World Cup Soccer, women's sports are not as popular as the male counterparts in ...

how to increase current​

Answers

Answer:

So to increase current of the circuit what you can do is :

1. Use conductor of low resistivity, ¶.

2. Use conductor of small length.

3. Use thick wire.

4. Decrease the temperature of the circuit.

5. If operating temprature is high than use semiconductor, because it have negative temprature coefficient.

6. Minimise the circuit losses.

Answer:

by making dam into near the water resource

If you walk 30 meters forwards, and then turn around and walk 25 meters backwards, what is the distance that you walked? What displacement do you have after this walk?

Answers

Given :

Walk in forward direction is 30 m .

Walk in backward direction is 25 m .

To Find :

The distance and displacement .

Solution :

We know , distance is total distance covered and displacement is distance between final and initial position .

So , distance travelled is :

D = 30 + 25 m = 55 m .

Now , we first move 30 m in forward direction and then 25 m in backward direction .

So , displacement is :

D = 30 - 25 m = 5 m .

Therefore , distance and displacement covered is 55 m and 5 m respectively .

Hence , this is the required solution .

Which state(s) of matter have no definite shape or volume? liquids and solids liquids and gasses gasses solids

Answers

Answer:

c gasses

Explanation:

Liquid and gases  state(s) of matter have no definite shape or volume

What is the matter?

Anything which has mass and occupies space is known as matter, mainly there are four states of matter solid liquid gases, and plasma.

These different states of matter have different characteristics according to which they vary their volume and shape.

The solid has a definite shape and definite volume because the atoms and molecules of the solid are very close to each other forming a great bond structure.

The liquid and gaseous state have their atoms and molecules apart from each other forming a loose bonding structure because this liquid does not have a fixed shape it takes the shape of the container, similarly, gases, their atoms are far apart from each other that's why they don't have fixed shape or the fixed volume.

States of matter those have no definite shape or volume are liquids and gases.

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Which body system is most closely associated with transport and delivery?

Answers

It is Cardiovascular.

The body system that is most closely associated with transport and delivery is known as the cardiovascular.

What do you mean by Body system?

The Body system may be defined as the collection of specific organs and tissues that work together in order to accomplish some important functions for the body. For example, the circulatory system plays an important role in the migration of oxygen and nutrients to each cell of the body via the blood.

The cardiovascular system effectively delivers numerous nutrients, hormones, oxygen, and other important substance to each cell of the body in order to facilitate the survivability of cells and entire organisms.

Therefore, the cardiovascular system is a type of body system that is most closely associated with transport and delivery.

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which of the following is a class of wave in physics
A. Ripple tank
B. Electromagnetic
C. Stationary
D. longitudinal​

Answers

Answer: They are all types of waves

A. Ripple tank

B. Electromagnetic  wave

C. Stationary  wave

D. longitudinal​wave

Explanation:

A biker goes out for a ride and begins riding North at 18 km/h for 200 minutes, then the driver turns around and rides at 12 km/h South for another 50 minutes.

Answers

Answer:

Explanation:

18 km / h

= 300 m / min

12 km / h = 200 m / min

distance travelled in 200 minutes = 300 x 200 = 60000 m

distance travelled in 50 minute in return journey = 200 x 50 = 10000 m

total distance travelled = 70000 m

total time = 250 minute

speed = 70000 / 250

= 280 m / min

= 16.8 km / h

Total displacement = 60000 - 10000 = 50000 m

total time = 250 min

velocity = 50000 / 250

= 200 m / min

= 12 km / h

What is the maximum energy that can be transferred to an electron in a hard collision by a 25 MeV
a) Electron (according to convention)
b) Positron
c) Proton
d) Alpha particle

Answers

Answer:

Electrons

Explanation:

The electrons are called the subatomic particles. The electrons have one of the symbol of e-and β-. The electrons are the first generation of the Lepton particles. These are generally describe the elementary particles. These particles do not have components and substructure.

Like all other elements the electrons also exhibits some types of properties. These electrons also hit with another particles and start to diffracted in different direction like lights.

The wave property of the electrons can be observed with the help of experiment.

5. Scientists studying bull sperm whales off the coast of South Africa have
calculated that these mammals can descend to depths of nearly 3,000 m during
their search for food. What is this depth in kilometers?

Answers

This would be 3 kilometers, because there are 1000 meters in 1 kilometer. I hope this helps! Have a great day!

If two people answer i will give brainliest to the first one that answers if right

What term best classifies cell A?

Choose 1 answer:

(Choice A) A Plant cell

(Choice B) B Fungal cell

(Choice C) C Animal cell

(Choice D) D Bacterial cell

Answers

Answer:

Choice A) A Plant cell

Explanation:

what type of quantity is frequency​

Answers

Radians per second (rad/s)

A fast Humvee drove from desert A to desert B. For the first 12
hours, it travelled at an average speed of 185 km/h. For the
next 13 hours, it travelled at an average speed of 160 km/h.
What was the average speed of the whole journey?
km/h

Answers

Answer: 172

Explanation: Because yeah

both nuclear fusion and nuclear fission reactions____

Answers

Answer:

releases large amounts of energy

Explanation:

Calculate the average speed of Terri's trip.

Answers

Answer:

please provide more information about the question so that I can help you

1. In a biology experiment the number of yeast cells is determined after 24 hours of growth at
different temperatures.
a) Identify the independent and dependent variables in the experiment.

Answers

Answer:

In a biology experiment the number of yeast cells is determined after 24 hours of culture at different temperatures. a) Identify the independent and dependent variables in the experiment. b) Draw the graph of the

Explanation:

Rank the nonmetals in each set from most reactive (1) to least reactive (3). Bromine: Chlorine: lodine:​

Answers

Answer:

2,1,3

Explanation:

Edge 2020

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In order for the economy to be strong, individuals must a. produce goods and pay workers b. provide labor and pay workers c. produce goods and buy goods d. provide labor and buy goods. PLEASE HURRY Collection of a $1,000 Accounts Receivablle:_____________. a. increases an asset $1,000; decreases an asset $1,000. b. increases an asset $1,000; decreases a liability $1,000. c. decreases a liability $1,000; increases stockholders' equity $1,000. d. decreases an asset $1,000; decreases a liability $1,000. Find the value of X in this equation.g=c+x When the spine develops an S- or C-shaped curve, this imbalance is referred to as which of the following?a. Lordosis b. Flatback c. Scoliosis d. Kyphosis what is society write in a sentence what is the 2 adjectives in ten girls were running for homecoming queen Which continent is 60 n , 100 w Which of the following is in the correct sequence? (What came first)1. empires2. nomadic tribes3. farming villages1. empires2. farming villages3. nomadic tribes1. nomadic tribes2. farming villages3. empires1. farming villages2. nomadic tribes3. empires Which term describes having a negative or hostile attitude or feeling toward agroup of people or its members?A. InferiorityB. BehaviorC. PrejudiceD. Stereotyping Heat cramps are caused by 30. When asked his age, the algebra teacher said, "If yousquare my age, then subtract 23 times my age, theresult is 50. How old is be?F. 23G. 25H. 27J. 46K. 50 . Sonya buys four pairs of shoes onsale for buy one, get one 50% off.The sales tax is 6.5%. If theoriginal price for each pair of shoeswas $35, how much does Sonyapay for the four pairs altogether?A. $74.55B. $105.00C. $111.83D. $149.10________________ HELP ME ASAP PLEZZZZ PLEZZ How do dendrites help the function of nerve cells? They help the neuron block messages from the dendrites of another neuron.They help the neuron receive messages from the dendrites of another neuron.They help the neuron block messages from the axon of another neuron.They help the neuron receive messages from the axon of another neuron. What is the correct order for the application of Koch's postulates? a. Inoculate suspect agent into test subject and observe that subject develops disease of interest b. Isolate and culture suspect agent in the laboratoryc. Find suspect agent in every case of disease of interest but not in healthy hosts d. Recover and isolate suspect agent from the test subject Is the square root of 0.49 rational The Manchu Dynasty and the Mughal Empire were similar in which of the following ways? * Both were fearful of advancing Clown Hordes from Atlantis and were able to repel them with advances in water balloon technology. Both governments relied heavily on Buddhism in order manage their respective societies Both were minority groups ruling large majority groups Both were able to successfully isolate themselves from European intrusion. what is 1xy+3x-(23y+3) 1.1.22Solve the equation.17 + 28 = 5(4x 9) According to John Locke, what is the primary purposeof laws?O to abolish unfair practicesto preserve liberty and freedomO to assist the nation in times of warO to restrain those who would do harm When exercising, which hormone level decreases in females often causing a better mood?EstrogenAdrenalineBlood SugarCortisol