Science Work, Help Please!

1. A. What is diffusion?

1. B. Use diffusion to
explain what happens when you drop a
sugar cube into a mug of hot tea.

2. A. What is osmosis?

2. B. Describe how water molecules
move through the cell membrane during
osmosis.


Answers

Answer 1

Answer:

Diffusion is the spreading of something more widely. When you drop a sugar cube in hot tea the sugar cube spreads out and the sugar starts to dissolve in the tea. Osmosis is a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane. If the concentration of water molecules ouside the cell is lower than the concentration of water molecules outside the cell then the water moves out through osmosis. Water travels through the cell membrane.

Answer 2
Diffusion is the movement of particles from a higher concentrated area to a lower concentrated area
Omosis is the movement of solvent particles across a sermipermeable membrane from a dilute solution into a concentrated solution

Related Questions

Which statement about fossils could be used as evidence that
evolution by natural selection has been in effect for millions of
years?
Fossils found in higher layers of rock are older than those
found in lower layers.
Fossils found in lower layers of rock are more complex than
those found in higher layers.
© Fossils of current species have been found throughout rock
layers that are billions of years old.
0 Fossils of species that no longer exist but are ancestors of
current species have been found in rock layers.

Answers

D because they evolved into the special that are current now

Fossils of species that no longer exist but are ancestors of current species have been found in rock layers. Thus, the correct option is D.

What are Fossil fuels?

A fossil fuel is a hydrocarbon-containing material which is formed naturally in the Earth's crust from the remains of dead organisms such as plants and animals which are extracted and burned as a fuel. The main fossil fuels which are present in the earth's crust include coal, oil, and natural gas.

The evolution of species is easily confirmed by the presence of fossils of the most diverse species of the living beings in the world. This is because, fossils are the records of species which do not currently exist, however there are existed millions of years ago and are similar to the current species, being their ancestors.

Therefore, the correct option is D.

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what could be done in terms of genetic engineering to minimize the chance of farmed raised fish from breeding with wild fish

Answers

Answer:

you could split the fish apart from each other or into different groups

Explanation:

hope this helps

How does the need for resources affect the relationships organisms in an ecosystem?

Answers

Answer:

The need for resources will make the organisms competitive in their ecosystems.

Angelman Syndrome or Prader Willi will be present in a child when:

a) there is a deletion on the X chromosome.

b) there is a mutation involving the X chromosome.

c)methylation has occurred involving one parent's chromosome.

d)methylation has occurred involving both parents' matching chromosomes.

Answers

Answer:c

Explanation:

PLEASE HELP!! Would you expect to find many fluorescent organisms in the very deep ocean? Why or why not?

Answers

Answer:

Yes

Explanation:

many deep sea animals use bioluminecense to communicate, lure in prey, and defend against predators.

What percent will be white?
0%
25 %
50 %

Answers

Answer:

0% will be white.........

What is the uterus?
O A muscular organ where the fetus develops during pregnancy
The place where oocytes and estrogen are produced
O A female structure crucial in blocking bacteria and sperm
The passageway allowing the oocyte to travel to where it can implant

Answers

Answer:

A muscular organ where the fetus develops during pregnancy

Explanation:

Answer:

A muscular organ where the fetus develops during pregnancy.

Explanation:

The Uterus is the organ in the lower body of a woman or female mammal where offspring are conceived and in which they gestate before birth. It's also known as the womb.

What climate conditions occurs during el ninio

Answers

Answer: El Niño is a part of a routine climate pattern that occurs when sea surface temperatures in the tropical Pacific Ocean rise to above-normal levels for an extended period of time.

hope this helps !_!

ENJOY groovie DAY
Global climate La Niña impacts tend to be opposite those of El Niño impacts. During a La Niña year, winter temperatures are warmer than normal in the Southeast and cooler than normal in the Northwest.

What are 2 examples of conservation efforts in the marine environment?

Answers

Answer:

Explanation:

Marine conversation is a structured plan in the protection and preservation of oceans ecosystem and seas.

Example of conversation method is,

Marine protected areas are areas protected to limit human activities. Some places are permanently closed while some are zoned into various categories.

Sustainable fisheries this is also done to conserve fishes in the ocean to avoid a continuous decline in population. It is done using theoretical approach and practical approach.

Which stage in the chart best represents a pioneer species?
Stage Organisms Present
А
None
B
Lichens and Moss
С
Grass
D
Shrubs and Small Trees
E
Forest
a
b
O O O O
Stage A
Stage B
Stage C
Stage E
С
d

Answers

Answer:

b

Explanation:

it is the most likely to be carried around by people on ships

The blood disorder in which the blood doesn't clot properly is known as-


Hemophilia


Erythemia


Color blindness

Answers

The Answer is Hemophilia

Which of these locations is most likely to experience moderate climate throughout the year?

Answers

Answer:

b

Explanation:

The location that is most likely to experience moderate climate throughout the year is C.

The location C of the map will experience moderate climate because it is a coastal region of the map.

Moderate climate weather is described as a weather condition that occurs during the day, as cool air from sea rush towards the land and during night, as cool air from the land rush towards sea.

Because location C is a coastal region which means that the location is surrounded by land which better absorbs and radiates heat much faster than sea.

Therefore, the location that is most likely to experience moderate climate throughout the year is C.

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Which ones goes with organ,organ system, and tissue

Answers

organ = a structure made of two or more tissues that work together.

organ system = organs that work together.

tissue = a group of cells that work together.

Sorry I just need points lol

How do limiting factors impact local ecosystems?



A)Limiting Factors prevent populations in ecosystems form growing any larger. If any of the limiting factors change, animal and plant populations change, too.


B)Limiting factors do not prevent populations in ecosystems from growing any larger. If any of the limiting factors change, animal and plant populations do not change, too.


C)Limiting factors can never impact ecosystems.


D)As biodiversity of an ecosystem increases, the ability to withstand environmental stress due to the loss of a single species or group also increases, improving the sustainability of the ecosystem.

Answers

Answer:

limiting factors like the availability of food, water, shelter and space can change animal and plant populations. Other limiting factors, like competition for resources, predation and disease can also impact populations. ... Sometimes a population will grow too large for the environment to support.

Explanation: a

Which of the following are the major "reservoirs" of carbon in the environment?
Select one or more:
A. the Sun
B. natural habitats
C. the Earth's interior
D. the atmosphere
E. sediments
E the oceans
G. the human body

Answers

Answer:the atmosphere, the oceans, and sediments

Explanation:

D. G. E. Plz mark as brainliest plzz

A cell phone discarded in the United States can cause a person processing it in China, India, or Africa to suffer negative consequences if it is not handled properly.

True Or False

Answers

Answer:

true

Explanation:

it is true

Mia uses the formula m2 to find the area of a circle . What is m2 an example of ?

Answers

The answer is D a model

Which factors add to the greenhouse effect and are caused by human activities? Select two options. (This question requires Two answers)

A.a decrease in the amount of dust in the atmosphere
B.a decrease in the amount of water on Earth’s surface
C.an increase in gases in the atmosphere that absorb heat
D.an increase in surfaces that radiate energy into the atmosphere
E.an increase in the amount of solar radiation that reflects into space

Answers

Answer:

There is overwhelming evidence that human activities, especially burning fossil fuels, are leading to increased levels of carbon dioxide and other greenhouse gases in the atmosphere, which in turn amplify the natural greenhouse effect, causing the temperature of the Earth's atmosphere, ocean, and land surface to.Human activities contribute to climate change by causing changes in Earth's atmosphere in the amounts of greenhouse gases, aerosols (small particles), and cloudiness. The largest known contribution comes from the burning of fossil fuels, which releases carbon dioxide gas to the atmosphere.

Explanation:

EXAMPLES: Burning of Fossil Fuels: Fossil fuels like coal, oil and natural gas have become an integral part of our life. ... Deforestation: Forests hold a major green area on the planet Earth. ... Increase in Population: Over the last few decades, there have been huge increase in the population.

according to the Nationalinstitute on drug abuse 2013 survey how much is spent annually in workplace because of drugs

Answers

600, is the correct answer

Answer:

600

Explanation:

According to the Nationalinstitute on drug abuse 2013 survey, 600 dollars is how much is spent annually in workplace because of drugs.

PLEASE GIVE BRAINLIEST!!!!

I need to submit this ASAP please help

State reason(s) why ash should or should not be used in making compost

Answers

Answer:

Fireplace ashes for compost can be used to help maintain the neutral condition of the compost. It can also add nutrients to the soil. Decomposing materials in the compost pile can become somewhat acidic and wood ash can help offset this, as it's more alkaline in nature.  But Adding too much ash to the pile can be detrimental to the makeup of the compost because of its alkalinity. Ashes tend to raise the soil pH, so you shouldn't use it directly on plants, especially acid-loving ones like rhododendrons, azaleas, and blueberries. Also, in high amounts, wood ash can inhibit plant growth by restricting nutrients, like iron.

What is the pathway of air into the body?

A. nose → nasal cavity → pharynx → trachea → larynx → bronchi → lungs
B. nose → nasal cavity → pharynx → larynx → trachea → lungs → bronchi
C. nose → nasal cavity → larynx → pharynx → trachea → bronchi → lungs
D. nose → nasal cavity → pharynx → larynx → trachea → bronchi → lungs

Answers

Answer:

D

Explanation:

Answer:

The answer is D

Explanation:

Arctic ice retreat is threatening many species in this ecosystem. Their resources are being cut and they are needing to find new ways to survive. Do you think in your lifetime you will see drastic effects to the species in this ecosystem and why? Will that affect other ecosystems?

Answers

Answer:

no

Explanation:because they will find new ways to survive in the environment

Answer:

We are already seeing drastic effects to the ecosystem and it's wide assortment of species. Animals such as polar bears, and seals are losing their breeding and hunting grounds. Polar bears in particular are losing their ways to catch seals for food and interbreeding with grizzly bears. Fish and whales from warmer parts of the world are starting to move up north and are becoming invasive. Most importantly, since cold water from the melting ice are mixing with ocean currents, global climates and weather systems are changing course. Ultimately, in about 500 years, there could be a large Global Climatic Shift that may put us into another Ice Age.

Line t passes through (4, 5) and is perpendicular to the line shown on the coordinate grid.

a coordinate plane with a line passing through two points at 0 comma 3 and 7 comma 2

What is the equation of line t in standard form?

x − 7y = −161
7x − y = 23
−7x − y = 23
x + 7y = 161

Answers

Answer:

it is b

Explanation:

The equation of line t is [tex]7x-y=23[/tex]

Equation of line :

Given that , A line passing through two points [tex](0,3),(7,2)[/tex]

Slope of line is,

                   [tex]m=\frac{2-3}{7-0}=-\frac{1}{7}[/tex]

Since, line [tex]t[/tex] and given line are perpendicular to each other.

Slope of line [tex]t[/tex] is, [tex]=7[/tex]

Equation of line [tex]t[/tex] is, [tex]y=7x+c[/tex]

Line [tex]t[/tex] passes through [tex](4, 5)[/tex]

Substitute point in equation of line [tex]t[/tex].

             [tex]5=28+c\\\\c=-23[/tex]

Equation of line [tex]t[/tex] become, [tex]y=7x-23[/tex]

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The picture below shows a simple model of the rock cycle. Use the picture to answer any questions that follow.Which events at point 6 could transform sedimentary rock into igneous rock?

Extreme winds and storms weather the sedimentary rock into particles, which collect in rivers and are compacted into igneous rock.

Rising oceans erode mountains of sedimentary rock into particles, which sink and get compacted into layers that form igneous rock.

Tectonic plates drive sedimentary rock under Earth's surface, where it melts into magma and turns into igneous rock as it cools.

Shifting tectonic plates push the sedimentary rock toward the poles, where it freezes and hardens into igneous rock.

Answers

Answer:

Tectonic plates drive sedimentary rock under Earth's surface, where it melts into magma and turns into igneous rock as it cools.

Explanation:

Why should extra precautions against sun exposure be taken when boating?

Water cancels out most sunscreens.
UV rays are blocked over land, but not over water.
The heat of the water increases potential skin damage.
The water reflects UV rays, adding to exposure.

Answers

Answer:

the correct answer would be D the water reflects UV rays, adding to exposure

Explanation:

Answer:

the correct answer would be D the water reflects UV rays, adding to exposure

Explanation:

Explanation:

when would you need to summarize and article

Answers

When you are copying from a direct source.
when copying from a direct source! :)

Microclimates can be affected by: elevation, large cities, density of vegetation or all of these - pls :(

Answers

Answer:

elevation

Explanation:

I need an answer for this ASAP. it’s number 6 7 8. 52 points to first person

Answers

8. Weather refers to short term changes in the atmosphere. Climate refers to what the weather is like for a long period of time.
7. Hailstorms, ice storms, thunderstorms, windstorms, tu rica es and tornadoes.
6 high air pressure experts a force on the surrounding low air pressure results in hire sea levers

Answer:

6. So high air pressure over a sea area corresponds to low sea level and conversely low air pressure (a depression) results in higher sea levels.

7. Thunderstorms, Tornadoes, Hurricanes, Winter storms

8. weather is short-term changes in the atmosphere and climate what the weather is like over a long period of time in a specific area.

Hope this is helpful!

Physical characteristics include 3 pairs of legs and 3 body sections *
arachnids
insects
annelids
echinoderms

Answers

Answer:

The three main features of an arthropod's body are the _ or cuticle made of chitin; a series of paired, jointed _ , and segmented _ parts. A long organic molecule made of sugars, arranged in layers. Chitin.

Explanation:

Answer:

Which of the following equations are balanced correctly?

2Ag2O → 4Ag + O2

Zn + HCl → ZnCl2 + H2

Cu + H2O → CuO + H2

2C4H10 + 13O2 → 8CO2 + 10H2O

Explanation:

Helppp !
Mendel published his results in 1865, but the significance of his work was not
recognized at that time. What is one reason scientists were not excited about
Mendel's work at the time?
O
A. He did not have enough data.
O
B. His results were false.
O
C. He did not repeat his experiments.
O
D. His results conflicted with accepted theories.

Answers

the answer should be d

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