Why do the cells have so many different organelles and structures?
What are the main differences between cell walls and cell membranes?
Answer:their function
Explanation:
The amoeba excretes waste through _________ while a sparrow excretes waste through __________.
Answer:
The amoeba excretes waste through Contractile Vacuole while a sparrow excretes waste through Cloaca.
Explanation:
In some unicellular eukaryotic organisms (e.g., amoeba), cellular wastes, such as ammonia and excess water, are excreted by exocytosis as the contractile vacuoles merge with the cell membrane, expelling wastes into the environment.
Birds, unlike mammals, do not have separate exits for urine and feces. Both waste products are eliminated simultaneously through the cloaca. While mammals excrete nitrogenous wastes mostly in the form of urea, birds convert it to uric acid or guanine, which reduces water loss in comparison.
Yes, we all know Pluto is no longer an official planet, merely a dwarf, but it still enjoyed full planet status when New Horizons rocketed from Cape Canaveral, Florida, on Jan. 19, 2006. Plutos demotion came just seven months later, a sore subject still for many.Were kind of running the anchor leg with Pluto to finish the relay," Stern says.The sneak peeks of Pluto in recent weeks are getting "juicier and juicier," says Johns Hopkins project scientist Hal Weaver. "The science team is just drooling over these pictures."The Hubble Space Telescope previously captured the best pictures of Pluto. If the pixelated blobs of pictures had been of Earth, though, not even the continents would have been visible.The New Horizons team is turning "a point of light into a planet," Stern says.An image released last week shows a copper-colored Pluto bearing a large, bright spot in the shape of a heart.Scientists expect image resolution to improve dramatically by Tuesday. The 7,767-mile span at closest approach is about the distance between Seattle and Sydney.New Horizons, weighing less than 1,000 pounds including fuel, has seven instruments that will be going full force during the encounter. Its expected to collect 5,000 times as much data, for instance, as Mariner 4.Were going to rewrite the book," Weaver says. "This is itthis is our once-in-a-lifetime opportunity to see it."The team gets one crack at this.Were trying to hit a very small box, relatively speaking," says Mark Holdridge, the encounter mission manager. "Its 60 by 90 miles, and were going 30,000 mph, and were trying to hit that box within a plus or minus 100 seconds."The only planet in our solar system discovered by an American, Pluto actually is a mini solar system unto itself. Plutojust two-thirds the size of our own moonhas big moon Charon thats just over half its size, as well as baby moons Styx, Nix, Hydra, and Kerberos. The names are associated with the underworld in which the mythological god, Pluto, reigned. New Horizons will observe each known moon and keep a lookout for more.Scientists involved in the 700 million effort want to get a good look at Pluto and Charon, and get a handle on their surfaces and chemical composition. They also plan to measure the temperature and pressure in Plutos nitrogen-rich atmosphere and determine how much gas is escaping into space. Temperatures can plunge to nearly minus-400 degrees.Bill McKinnon, a New Horizons team member from Washington University in St. Louis, Missouri, expects to see craters and possible volcanic remnants. A liquid ocean and a rocky core may lie beneath the icy shell.Anybody who thinks that when we go to Pluto, were going to find cold, dead ice balls is in for a rude shock," McKinnon says. "Im really hoping to see a very active and dynamic world."Pluto has tantalized astronomers since its 1930 discovery by Clyde Tombaugh using the Lowell Observatory in Flagstaff, Arizona. Some of Tombaughs ashes are aboard New Horizons. His two children, now in their 70s, plan to be at Johns Hopkins for the encounter.With its tilted, elongated 248-year orbit, Pluto has made it only a third of the way around the Sun since its discovery. The amount of sunlight that reaches Pluto is so dim that at high noon, it looks like twilight here on Earth. The massive surrounding Kuiper Belt, in fact, is called the Twilight Zone. The New Horizons team has its eyes on a few much smaller objects in the Kuiper Belt, and is hoping for a mission extension as the spacecraft continues toward the solar system exit on the heels of NASAs Voyagers 1 and 2 and Pioneers 10 and 11.For now, signals take 4hours to travel one way between New Horizons and flight controllers in Maryland.New Horizonsscience instruments will be cranked up to collect maximum data Tuesday, leaving no time to send back data. In fact, scientists wont be absolutely certain of success until Tuesday night, 13 hours following New Horizonsclosest approach, when it "phones home."It will be Wednesday before the closest of Plutos close-ups are available for release. And it will be well into next yearOctober 2016before all the anticipated data are transmitted to Earth.
What is the significance of this mission? What do you find extraordinary about it?
Answer:
jesus christ can you simplifiy it
Which water cycle processes usually cause a lowering in the water table? Which processes cause a rise?
Answer:
Explanation:
Lowering: During the summer months, the water table tends to fall, due in part to plants taking up water from the soil surface before it can reach the water table. The water table level is also influenced by human extraction of groundwater using wells; groundwater is pumped out for drinking water and to irrigate farmland.
Rise: Fluctuations in the water table level are caused by changes in precipitation between seasons and years. During late winter and spring, when snow melts and precipitation is high, the water table rises.
The water table typically drops throughout the summer because plants absorb water from the soil's surface before it can get to the water table.
What is Water table?Human groundwater extraction through wells, including pumping out groundwater for drinking water and farmland irrigation, has an impact on the water table level as well.
Variations in precipitation over the course of seasons and years are what create fluctuations in the water table level. The water table rises in the late winter and early spring as snow melts and precipitation levels are high.
The five steps of the nitrogen cycle, which are fixation or volatilization, mineralization, nitrification, immobilization, and denitrification. The fixation process is known as volatilization in this image because soil bacteria convert nitrogen gas (N2) into volatile ammonia (NH3).
Therefore, The water table typically drops throughout the summer because plants absorb water from the soil's surface before it can get to the water table.
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Which list places the layers of the sun in the correct order from outermost to innermost?
Corona, chromosphere, photosphere
Photosphere, radiative zone, convective zone
Convective, chromosphere, corona
Radiative zone, corona, convective zone
Answer:
photosphere,radiative zone, convective zone (2)
Answer:Photosphere, convective zone, radiative zone
Explanation: i got it rii on the test i promise
Which statement describes the motion of the sun?
The sun rotates more slowly at its equator.
The sun rotates faster at its equator.
The sun rotates faster at its poles.
The sun does not rotate at its poles.
Answer:
i think the third one because it rotates faster at the equator than it does its poles, but im not sure what you're comparing it to.
Answer:
The sun rotates faster at its poles is the correct answer
Explanation:
True or false? The FLSA classifies employees as exempt or nonexempt from earning overtime pay for hours worked in excess of 50 hours per week.
Answer:
true
Explanation:
Why do ruminants digest their food in 2 steps
Answer:
Due to half way digestion the food matter becomes softer than earlier and the animal can chew it well.
Explanation:
True or False? The final step of manually reconciling a bank statement is comparing deposits noted on the statement against the office's records or receipts by making a check mark next to each correct number.
Pls help will mark brainliest
The bank statement is defined as the summary of financial transactions in a specific period of time. It allows to check for errors, suspicious activity and is required to apply for the loan.
The given statement is True.
The steps involved in reconciling a bank statement are:
1. Compare the bank deposits, such that the deposits in the bank should match with the bank statements.
2. Adjusting the bank statement such that if any of the data does not match then the bank statements should be adjusted to the correct value.
3. The cash account should be adjusted after correcting the bank statement.
4. Thus, finally the bank deposits and the bank statements should be compared.
Thus, the given statement is true.
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PLEASE PLS PLS HELP I WILL GIVE BRAINLIEST
"Create a bar graph comparing the particle movement in hot water to that in cold water."
Two heterozygous dominant parents for attached earlobes are crossed to predict the traits of their offspring. What is the ratio of attached earlobes to unattached earlobes in their offspring?
A - 3:1
B - 1:3
C - 2:2
D - 4:0
Answer:
A - 3:1
Explanation:
In order to determine what number of offspring will have attached earlobes, we must make a Punnett table. We know that attached earlobes are the dominant gene, and we know unattached earlobes are recessive.
| P | p
——————-
P | PP | Pp |
——————-
p | Pp | pp |
As we can see, only one out of the four squares has two recessive genes. Therefore, our answer would be A - 3:1.
how does photosynthesis relate to the formation of dna?
Answer:
During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
Explanation:
what are wavy features found on some sandstones?
Answer:
Stratification which means arranging something, or something that has been arranged, into categories
Hope this helps <3
If the gasoline floats on the surface of the puddle, what does that tell you about how its density compares to that of water? Explain your answer.
It tells that gasoline is less dense than water, because according to Archimedes Law states that any body completely or partially submerged in a fluid is acted upon by an upward, or buoyant, force, the magnitude of which is equal to the weight of the fluid, displaced by the object. So, when gasoline is put in water, it floats, it means that the buoyancy force is greater than gasoline's weight. It means that the weight of the same volume of water is more than the weight of the same volume of gasoline. It means that water has more density.
The radiative zone is the outer shell of the sun from which light energy is radiated.
True
False
Answer:
FalseExplanation:
The Radiative Zone is located just beyond the sun's Inner Core, at a distance of 0.25 to 0.7 solar radii. Photon emission and capture by hydrogen and helium ions cause energy to be radiated in this zone.
OAmalOHopeO
can there be rainbow fish
Answer:
Yes, Rainbow Trout
Explanation:
Answer:
there might be maybe scientist just haven't found them yet
hope this helps
Explanation:
Elaborate on how an observation aids in the process of drawing a conclusion in the scientific method
Answer:
Restate: Restate the lab experiment. Describe the assignment.
Explain: Explain the purpose of the lab. ...
Results: Explain your results. ...
Uncertainties: Account for uncertainties and errors. ...
New: Discuss new questions or discoveries that emerged from the experiment.
Explanation:
A camel is lost in the desert. It is not finding any food or water. It needs 9000 kilo calorie energy and 4 litre water daily. Its mass is 650 kg and 10% of its mass is fat. It has a water reservoir near its neck with a reserve of 312 litre water. It can live using its fat storage. 1g fat contains 9 kilo calorie energy. How long the camel can survive with it's reserve?
The correct answer to how long the camel can survive with its reserve would be 65 days.
First, let us calculate the total amount of energy derivable from the fat in the body of the animal:
Mass of the camel = 650 kgMass of fat = 10% of the total mass= 10% x 650 = 65 kg
If 1g of fat is equivalent to 9000 kilocalories of energy in the animal, then, 65 kg of fat would be equivalent to:
65 x 1000 x 9000 = 585,000 kilocalories of energyThe total amount of energy is 585,000 kilocalories and the total amount of reserved water is 312 litres:
Amount of energy required per day = 9000 kilocaloriesNumber of days 585,000 kilocalories of energy can serve = 585,000/9000= 65 days
Amount of water needed per day = 4 litresNumber of days 312 litres of water can serve = 312/4= 78 days
The water reserve can last 78 days while the energy reserve can last 65 days. Since the camel needs both to survive, it means the animal can only survive for 65 days.
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In 3-5 sentances explain how the rate of photosynthesis or cellular respiration can be measured using products or reactants
⦁ True or false?- Yogurt has good bacteria that is beneficial to humans
What codes for proteins?
amino acids O
RNA O
polypeptides O
DNA O
Answer:
DNA my friend
pls mark brainiest if it helped :)
Please help with this problem!
I believe the answer is 3.
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Which bright solar feature is shown in the picture above?
Solar flare
Prominence
Sunspot
Convection zone
Answer:
ProminenceExplanation:
Prominence is a huge, glistening, and gaseous feature that extends outward from the sun's surface. The photosphere is one of the layers of the sun where prominences are anchored before moving into the corona.
OAmalOHopeO
Which is true of genes?
O They are sections of DNAthat produce the proteins that control an organism's characteristics
O They are proteins that produce sections of DNA which control the cell's activities
O They are features that can be observed rather than measured.
O They are the same as traits which show up in an organism if they are dominant
The statement that is true about Gene is that They are sections of DNA that produce the proteins that control an organism's characteristics.
What is Gene?Gene refer to an hereditary unity which is transmitted from parent to their offsprings and it is transferred from one generation to another.
It is the major constituent of an organism DNA.
Therefore, The statement that is true about Gene is that They are sections of DNA that produce the proteins that control an organism's characteristics
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What is the name of each labeled part?
Answer:
ttyttgggyhj
gyyuf
gfthj
fghifvbb.
drjj
what are the importance of agriculturist ? 4 points.
Please help!
Answer: HOPE IT WILL HELP U ...
Explanation:
1. It help to provide the direct employment to farmer.
2.It is the natural-friendly and most peaceful method of livelihood .
3.It is the primary source of the economic prior to the industrial revolution.
4.It contributes to the nations food safety and health .
HOPE SO THE GIVEN ANSWER HELPS YOU
Think of Earth as a ball with a rod through it, standing for the axis. This makes it easier to imagine Earths orientation in space relative to other objects like the Sun. Now consider the Sun as another ball. Imagine the Sun located in the center of a disk, kind of like a Frisbee. The planets in the solar system would be positioned on the Frisbee but at varying distances from the Sun. The area we are imagining as a Frisbee is actually called the plane of the ecliptic. It is the plane of Earths orbit around the Sun. Earths axis is not oriented perpendicular to the plane of its orbit. It is tilted at 23.5 degrees from the perpendicular. Why is this an important detail? This orientation in space, relative to the Sun, has great influence on Earths seasonal changes.
QUESTION 1
In paragraph 4, what word or phrase gives you a clue to what the word perpendicular means?
Somewhat like a Frisbee
Relative to the Sun
Rather it is tilted
Orientation in space
Explanation:
A ball is thrown straight up from a rooftop 320 feet high. The formula below describes the ball's height above the ground, h, in feet, t seconds after it was thrown. The ball misses the rooftop on its way down and eventually strikes the ground. How long will it take for the ball to hit the ground? Use this information to provide tick marks with appropriate numbers along the horizontal axis in the figure shown.
h=-16t^2+16t+320
What animal makes pepperoni?
sometimes it's made of cow and pig or it's just pig it just depends on what kind
Choose an organism. Use credible websites to research the classification of that organism and the characteristics its shares with other organisms you selected and full the table with information you gathered. PLSS HELP FAST!!
PLEASE HELP WILL GIVE BRAINLEST
Analyze the given diagram of the carbon cycle below.
An image of carbon cycle is shown. The sun, a cloud, two trees, one on the left and the other on the right, an animal, lake, and a factory are shown in the image. An arrow is shown from the sun towards the left tree marked A. The sun is marked B. There is an arrow from the air above the clouds, marked C, towards the left tree. An arrow from a location close to the ground marked D points towards Dead Organisms, which is a label under the animal. An arrow marked E points from the right tree straight up to the clouds. An arrow marked F points from the animal straight up to the clouds. An arrow marked G points from the factory towards the air above the clouds, C. There is an arrow pointing from the air to the lake labeled Carbonates in Water, an arrow pointing down from dead organisms to Fossils and Fossil Fuels, and an arrow from Fossils to the factory.
Part 1: Which compound does C represent?
Part 2: Name a process that could release this compound into the air.
Part 3: Explain how the elements that form it are conserved during the carbon cycle. Use complete sentences to explain your answer.
Justify how this compound was created from a recycling of carbon in the carbon cycle. Use complete sentences to explain your answer.
