Why Floating of ice on water?​

Answers

Answer 1
Believe it or not, ice is actually about 9% less dense than water. Since the water is heavier, it displaces the lighter ice, causing the ice to float to the top. How is ice less dense than water? ... So for water, the density actually decreases along with a decrease in temperature - causing ice to be less dense than water!

Related Questions

what are the benefits of the cluster of curriculum ?​

Answers

so the teachers can focus instructions to meet all the students academic needs

Answer:

Empowering all teachers by expanding awareness and providing preparation, Teachers can focus instruction to better meet all students academic needs. on -going assessment of students

{{40 POINTS!!}} DUE SOON!
Cystic fibrosis is a recessive genetic disease that affects the respiratory and digestive systems. Devin, who has Cystic fibrosis, and Cindy (no cystic fibrosis in her family) are married and planning to have children. As a student of genetics, develop an explanation for their chances to have a child that does not have Cystic fibrosis.

Answers

Good as new hope u do well

please help me, 15 points

Answers

Answer: C

Explanation:

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Sickle cell anemia is a recessive genetic disease. Treshon and Shameka are married and planning to have children. Treshon has sickle cell anemia. Shameka does not have the disease, but her father did. As a student of genetics, develop an explanation for the chances that this couple would have a child with sickle cell.

Answers

Answer:

Hi

Explanation:

hi

In the diagram below, which cells are involved in the process of sexual reproduction? A.) cell 3, only B.) cell 1 only C.) cell 1 and 2 D.) cell 2 and 3

Answers

C I’m sorry if it’s incorrect

Cell 1 and 2 are involved in the process of sexual reproduction which are sperm and egg respectively.

What are gametes?

Gametes are reproductive cells that are responsible for sexual reproduction. In animals and plants, gametes are typically specialized cells that are specifically designed for the purpose of reproducing and transmitting genetic information from one generation to the next. Gametes are produced by the process of gametogenesis, which is the process of forming and developing gametes.

In animals, gametes are typically either eggs (ova) in females or sperm in males. Eggs are large, non-motile cells that contain a large amount of cytoplasm and nutrients to support the development of an embryo. Sperm are smaller, motile cells that are specialized for fertilization and are capable of swimming through the female reproductive tract to reach the egg.

In plants, gametes are typically produced by specialized cells called gametophytes. Gametophytes produce gametes through a process called meiosis, which is a type of cell division that results in the production of four genetically diverse daughter cells. The gametes produced by gametophytes are typically small and non-motile, and they are capable of fusing with gametes from other plants to produce a fertilized egg, or zygote.

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A red blood cell is 7.5 µm in diameter. It is magnified 2000 times. Calculate the diameter of the image seen through the microscope in millimetres.

Answers

Answer:

15 mm

Explanation:

Given that,

The diameter of a RBC = 7.5 µm

It is magnified 2000 times.

We need to find the diameter of the image seen through the microscope in millimeters.

The size of the diameter is given by :

[tex]d=2000\times 7.5\\\\=15000\ \mu m\\\\or\\\\d=15\ mm[/tex]

So, the diameter of the image seen through the microscope is 15 mm.

What were the three important achievements made by the team of negotiators?

Answers

guaranteed both nations access to the Mississippi River, defined the boundaries of the United States, called for the British surrender of all posts within U.S. territory I hope this helps

Help please and thank you :) .(Cycling of matter and energy flow quick check).

1. Which of the following describes the amount of organic material that is available for transfer to the next trophic level after subtracting material used for respiration?
-Gross Primary productivity
-Biomass
-Net Primary productivity
0r
-Primary productivity

2. Suppose a plant is eaten by a mouse, the mouse is consumed by a snake, and the snake is in turn consumed by a hawk. What could be assumed about the level of available organic matter in the mouse versus the plant?
-There will be less organic matter available.
-There will be more organic matter available.
-Organic matter does not transfer between the plant and the mouse.
0r
-They both have the same amount of organic matter.

3. How does biomass change from lower to higher trophic levels?
-It fluctuates.
-It increases.
-It decreases.
0r
-It stays the same.

4. The incomplete burning of _____ in gasoline is known to create black carbon and contribute to global warming.
-ethanol
-methane
-carbon
0r
-carbon dioxide

5. Why are there less secondary consumers in an ecosystem than producers?
-Around 90% of energy from one trophic level to the next is available.
-There is less land to use for habitat after the producers grow.
-More tertiary consumers will eat secondary consumers over producers.
0r
-There isn’t enough energy available to support more secondary consumers.
...Thanks...

Answers

Answer: 1. Net primary productivity

2. there will be less organic matter available

3. it decreases

4. ethanol

5. there isn’t enough energy available to support secondary consumers

Explanation:

1. Gross Primary productivity is the organic material that is left after subtracting energy used for respiration. It is always greater than net primary productivity.

2. There will be less organic matter available for the mouse because plant is a primary producer of biomass and it lies at the lowest trophic level as we go up in the trophic level the level of energy reduces.

3. The biomass will decrease while going from lower to higher trophic levels this is because of the fact that the plants or other autotrophs are the primary producers of biomass.

4. The incomplete combustion of gasoline and methane are the major fuels contributing to global warming.

5. There are less secondary consumers in an ecosystem because more tertiary consumers are dependent on secondary consumers for their food and energy requirements.

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Assuming that the muscles within both arms below are the same strength, which arm would be able to lift the most weight and why?



Arm 1. because muscles in shorter arms are stronger.

Arm 1, because muscles in shorter arms can exert more force on an object held in the hand.

Arm 2, because muscles in longer arms are stronger.

Arm 2, because muscles in longer arms can exert more force on an object held in the hand.

Answers

Answer:

khk rhfjhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

jrfjfwhf

Explanation:

Answer:

B

Explanation:

Trust me bro

the important of complement system in host defenses against infectious disease

Answers

Answer:

If its Right Braliantes please

Want Answer?

Explanation:

Complement is an effector system capable of mediating a number of biological activities. Most familiar is the ability of the system to mediate the lytic destruction of many kinds of cells including bacteria and viruses surrounded by lipid membranes.

The diagram shows a football field that represents a geological time scale. Why are no organisms labeled between the end zone and 30 yard line on the left side of the field? Scientists disagree about the fossils from this time period. Scientists have not studied that part of the time scale. There is very little fossil evidence for this time period. There are too many fossils to name.

Answers

Answer:

the is b

Explanation:

Answer:

b

Explanation:

boi

Which of the following statements DOES NOT accurately describe the experimental design used by Fred Griffith?

A.The type of bacteria injected into the mouse was the independent variable in his experiment. B.The injection of the live rough bacteria into the mouse is a control because it was used as a standard of comparison for other experimental setups.
C.The dependent variable in the experiment was the health of the mouse after injection.

Answers

Answer:

The correct answer is B. It is false that the injection of the live rough bacteria into the mouse is a control because it was used as a standard of comparison for other experimental setups.

Explanation:

The experiment conducted by Frederick Griffith in 1928 was one of the first experiments to show that bacteria could transfer genetic information.

Griffith used two slightly different pneumococcal strains in his experiment. One of them was harmless to the mice, while the other was not. Using each strain separately, the logical thing happened: the mice died with the fatal strain, and nothing happened with the harmless.

Then, Griffith killed the deadly strain, and mixed both strains, introducing them into the mice. After this, the mice died, which allowed us to verify that the bacteria can transfer genetic material even after dying, through the transformation process.

Design an experiment using a seedling and a block of agar soaked with auxins that might con firm the effect of this hormone on the elongation of the coleoptile. (Hint: Remember that the auxins are permeable to the agar material.)

Answers

Answer:

Grow the seedlings of oats for Avena coleoptile test in a petri plate and let them germinate in light, so that the coleoptile forms with leaves.Cut the coleoptile stem and add agar block of auxin with different concentrations in all different oat seedlings and expose them to sunlight.Then observe the amount of bending of coleoptile stem towards the light in different samples added with different amount of auxin in the agar slab.

Explanation:

Cultivate oat saplings in a petri dish for the Avena cotyledon experiment and let them germination in light until the coleoptile develops with branches.

Cut the coleoptile stems and place an agar blocks with varying quantities of auxin in each of the oat saplings before exposing them to sunlight.

Next, in separate samples with varied amounts of auxin inside the agar slab, examine the degree of bending of the coleoptile branch more toward the sunlight.

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how does the atmosphere affect the temperature on earth?
explain ur answer.

F. Wind speeds are increased, keeping the planet cool.
G. It helps hold heat in, keeping the planet warm.
H. Sunlight is reflected away, keeping the planet cool.
I. The gasses expand as they rise, keeping the planet warm.

Answers

Answer:

i think its I

Explanation:

The teeming diversity of the rainforests has led to
A. overpopulation of communities
B. Extinction of herbivores
C. species specialization
D. overcrowding in the canopy

Answers

Ans: C- species specialization

True or False. Anything that has molecules doesn’t have heat. Explain your answer.

Answers

Answer:

False

Explanation:

That is false. In my own words that is false because molecules needs heat to help the cells. All set ❤️❤️❤️

How Is DNA related to the nucleus? ODNA makes up the nucleus. ODNA needs the nucleus to function. ODNA and nucleus work together to make proteins. ODNA is located in the nucleus.​

Answers

Answer:

DNA is located in the nucleus.​

Explanation:

Answer: DNA is located in the nucleus.​

What is the primary use of freshwater worldwide?
O A. Petroleum refining
O B. Crop irrigation
O C. Manufacturing processes
O D. Drinking water

Answers

Answer: i would say drinking water

Explanation:

Answer : B
Explanation: Throughout the world, the major use of water is crop irrigation in agriculture.

4
Select the correct answer.
According to Piaget's theory of cognitive development, which stage is over by the end of the first two years of a child's life?
OA. preoperational stage
ОВ.
concrete operational stage
Ос.
formal operational stage
OD
sensorimotor stage
Reset
Next

Answers

Answer:OD --sensorimotor stage

Explanation: There are four stages According to Piaget's theory of cognitive development which are  Sensorimotor, Preoperational, Symbolic thought  and Concrete operational.

The sensorimotor stage  is the first stage of a child's development which starts at birth till age 2. This stage is characterized  with the child acquiring knowledge by physical activities with his or her environment  which develops to developing  fine motor skills and the ability to use symbols to create  mental representations   toward end of the stage.

Which type of energy resource is nonrenewable?
O A. Wind
OB. Uranium ore
OC. Geothermal energy
O D. Sunlight

Answers

That’s very simple uranium I believe but I haven’t done science class in like 7 years so don’t quote if I’m wrong

Answer:

Uranium Ore

Explanation:

Took the test on A P E X

Describe the structure of a chloroplast. How do the inner membranes differ from the outer membranes?

Answers

Answer:

the outer membrane has small organic molecules but the inner membrane is less permeable and studded with transport proteins.

Explanation:

The outer membrane has the small organic molecules

Name 4 things that happen during telophase.

Answers

Answer:

1. The chromosomes arrive at the cell poles.

2. The mitotic spindle disassembles.

3. The vesicles that contain fragments of the original nuclear membrane assemble around the two sets of chromosomes

4.  Separate the nuclear DNA from the cytoplasm.

answer:

During telophase, the chromosomes begin to uncoil and form chromatin. This prepares the genetic material for directing the metabolic activities of the new cells. The spindle also breaks down, and new nuclear membranes (nuclear envelope) form.

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The Maplewood Marine Restoration Project will seek to dredge sand and substrate from the
southwest of the site to create a drainage channel in the Maplewood basin. This will create a ______
supporting fish and invertebrate communities. The substrate
will be used to fill in the northeastern corner of the basin to make a mudflat that supports and
shellfish in______
and juvenile salmonids and crabs in
_______(figure 3.3)
options are:
rock reef habitat
intertidal flat habitat
shallow subtidal eelgrass

Answers

Answer: shallow subtidal eelgrass, intertidal flat habitat, rock reef habitat

Explanation:

The project will seek to dredge sand and substrate from the

southwest of the site to create a drainage channel in the Maplewood basin. This will create a shallow subtidal eelgrass

supporting fish and invertebrate communities. The substrate

will be used to fill in the northeastern corner of the basin to make a mudflat that supports and

shellfish in intertidal flat habitat

and juvenile salmonids and crabs in

rock reef habitat(figure 3.3)

This is the passage that we will get after we add those two habitats from your question which are rock reef habitat, and intertidal flat habitat, and also shallow subtidal eelgrass.

Rock reef habitat is opposite to intertidal flat habitat because it is not flat it is the place when fishes can hide or live.

Eelgrass is considered a flowering underwater plant.

atmosphere hydrosphere biosphere geosphere

help solve number 2

Answers

Answer:

Oceanic CO2  

Cold temperatures from the ocean dissolves CO2 and stores it into deep waters.  

Marine Plants/algae  

Plants and Algae go through Photosynthesis  

Sediments  

Plants and Algae sink to the bottom of the ocean building up large amounts of carbon.  

 

need help with this

Answers

Answer:

The answer want me A) decrease calorie comsumption by 500 calories per day.

Explanation:

Well it shouldnt be that high, but if you want if this was a more in person this and I was personally talking to someone who wanted to lose weight. I would ask them, how much they want to lose and help them like that. Because then they would only be eating 1500 calories a day, which isnt that bad. But isnt that great.

___ ___ is the flow of alleles into or out of a population.

Answers

Answer:

Gene Flow

Explanation:

Which action is most likely to stop succession and make an ecosystem less
stable?
O A. Using fewer pesticides in gardens
B. Using less fertilizer in gardens
C. Planting a variety of native species in gardens
D. Planting nonnative species in gardens

Answers

The answer is D.  Because planting nonnative species is bad for the area because the plants that normally grow there have to compete with that new species then.  

Answer:

D. Planting nonnative species in gardens.

Explanation:

Planting nonnative species in gardens are bad for your garden. The nonnatives can steal most to all of your native plants food and they can attack your native plants and kill them.

Clouds with light rain.

In your current location, the weather is much like this picture: cloudy and drizzly. The weather has been like this for several days. The good news is that the weather report says warmer weather is coming soon.

Which type of front most likely caused this weather?

occluded front
stationary front
warm front
cold front

Answers

Warm fronts move more slowly and are less violent than cold fronts. They are associated with warm air moving over cold air and are more likely to produce large regions of light to moderate rain, drizzle or snow. Cirrus clouds and alto cumulus, along with fog, often precede warm fronts as they move through an area. The milder weather that follows will be warmer in temperature. So it would be warm fronts.

Answer:

Warm Front

Explanation:

What river basin has the least amount of land amount of land inside of NC’s borders

Answers

Answer: Savannah basin

Hope this helped

Answer: Savannah basin

Explanation: The North Carolina portion of the Savannah basin, located along the southeastern flank of the Blue Ridge physiographic province, amounts to approximately 171 square miles, making it the smallest river basin in North Carolina.

Deleting or adding a DNA base (“letter”) can mean a different amino acid can be produced.
A.True B.False

PLEASE HELP ME PLEASE PLEASE PLEASE PEOPLE PLS HELP ME PLEASE ):
I'M GIVING Y'ALL 23 POINTS I DON'T HAVE THAT MUCH LEFT PLEASE HELP PLEASE PLEASE PLEASE
PLEASE

Answers

Answer:

true

Explanation:

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