“Fish and other wildlife become unhealthy and die without __________.”

Oxygen
Carbon Dioxide
Eutrophication

(This is 7th grade science)

Answers

Answer 1

Answer:

Oxygen

Explanation:

Answer 2
Andwer is oxygen if not then eutrophication

Related Questions

If a cell suddenly stopped producing transfer RNA, which of the following processes would be immediately affected?

Answers

Answer: DNA

Explanation: The RNA is a big affect on the DNA because, there will be no repairs of the DNA leading to cancer

which of the following is problem created when a cell becomes to large

Answers

Answer:

As a cell increases in size, it usually does not make extra copies of DNA. If a cell became too large, an "information crisis" would occur. The cell has more trouble moving enough nutrients and wastes across the cell membrane.

Explanation:

Answer 15 and 16 correctly and I will mark as brainliest

Answers

Answer:

I think its A and G

Answer:

15. B.

16. H

Explanation:

Can someone please help me I don't understand the and my parents don't under please

Answers

432hz x 432hz = 2228

Explanation:

the simple explanation is shushh

In mature animals when do cells still need to differentiate?

Answers

Answer:

As an organism develops, cells differentiate to form different types of cells. Most types of animal cell differentiate at an early stage. Many types of plant cells retain the ability to differentiate throughout life. In mature animals, cell division is mainly restricted to repair and replacement.

Explanation:

''.''

In mature animals cells differentiate during : Repair and replacement of  animal cells

Cells differentiate in organisms and plants to create more cell types, as the organism and plants continue to mature. While cell differentiation in animals occur mostly before maturity, plants cells continue to differentiate until they die.

While in mature animals, cells differentiates at maturity only when the cells of the mature animal needs repair or replacement due to damage caused to the a cell or tissue.

Hence we can conclude that in mature animals cells differentiate during repair and replacement of cells.

Learn more : https://brainly.com/question/19015367

4 points
The inferred temperature and pressure of Earth's
interior at a depth of 3,000 kilometers are
approximately
(1) 1000°C and 0.5 million atmospheres
(2) 1000°C and 1.0 million atmospheres
(3) 5000°C and 1.5 million atmospheres
(4) 5000°C and 3.0 million atmospheres

Answers

Answer:

(4) 5000°C and 3.0 million atmospheres

Explanation:

The inferred temperature is 5000°C and pressure of Earth's  interior is 3.0 million atmospheres at a depth of 3,000 kilometers. At the depth of 3000 kilometers, core of the earth is present which is very hot and it is mostly consist of iron. The inner core has a radius of about 1,220 kilometers while the outer core is about 1,400 miles thick which comprise of iron, Nickle, gold, platinum, and uranium elements.

which is NOT part of the cell theory?

A) all living thing a are composed of cells
B) Cells are the building blocks of germs
C) All cells come from other cells
D) Cells are the basic units of structure and function in living things

Answers

Answer:

B.

Explanation: Hope this helps! ^^

A simple life cycle is one in which the offspring look similar to their parents.
True
Or
False

Answers

False — life cycles have to do with birth to death progressions, not genetic traits.

If the cell cycle lasts 36 hours and mitosis takes 25% of the cell cycle, how many hours will the cell be in mitosis?

Answers

mitotic index I = (P+M+A+T)/ TOTAL cell, N) *100 %
(P+M+A+T) — the sum of all cells in phase as prophase, metaphase, anaphase and telophase, respectively; N — total number of cells.
Mitototic index (MI) is 3/25000 x 100 = 1.2 %
From the cell cycle, 1.2% is mitotic and the rest will obviously be interphase.
So, 1.2% is 30 minutes, so 100% (length of total cell cyle) is 2500 minutes (42hours).




I hope this helped you.

What is the difference between a molecule and a diagram of a molecule ?

Answers

Answer: The molecule itself is the actual thing present.

while the diagram explains what makes up a molecule or what it looks like structurally

Explanation:

What is the definition of a DNA Polymerase

A. Enzyme involved in DNA replication that joins individual nucleotides to produce a DNA molecule
B. An enzyme that unwinds the DNA double helix during DNA replication
C. A class of nucleotides that includes adenine and guanine.
D. A bond between complimentary base pairs in DNA​

Answers

A. I hope this hopes

What process in humans is a good representation of asexual reproduction?

A. Meiosis

B. Mitosis

C.Fertilization

Answers

Answer:

B.

Explanation:

how do you think the idea of sustainability influences the work of foresters?



help me

Answers

It’s funny because the concept of sustainability is thought to come from field of forestry. Around the year 1700, Carl von Carlowitz described the concept of sustainable forestry.

Which statement is part of the cell theory?
A Single-celled organisms are made of one cell.
B Cells are different in size and shape.
C All cells come from other living cells.
D Cells sometimes only have one job.

Answers

Answer:

I believe it's C, all cells come from other living cells.

Which human activity negatively affects the stability of the environment?

Answers

Answer:

Some human activities that cause damage (either directly or indirectly) to the environment on a global scale include population growth, overconsumption, overexploitation, pollution, and deforestation, to name but a few.

Explanation:

Brainliest?

What do you call protozoa that you can see with the naked eye?

Answers

Answer:

Paramecium protozoa

Explanation:

because of their size (50-300 μ long) and the human eye can see things as small as about 100 µm and P.

If a hydrocarbon chain has a carbon to carbon double bond then it is _______________.

Answers

Answer:

It is Alkene..........

Answer:

Alkenes

Explanation:

Alkene is a hydrocarbon chain that has a carbon to carbon double. Alkenes are considered 'acyclic' because it has one carbon to carbon double. Since they contain less than a maximum number of hydrogen atoms they are unsaturated.

Hope this helped    

When you step
on a scale, what is being
measured?

Answers

Answer:

Although scales measure force, they give you measurements of mass in kilograms, grams, pounds, or whatever.

Explanation:

What the person above me said is correct


Explanation it’s correct I’m positive

Of all of the energy given off by the Sun directed towards Earth, approximately only 50 percent of the energy penetrates directly to
the surface of Earth. What is the best explanation for what happens to the rest of the energy?

A) Energy is lost during while traveling through space.

B) Energy is reflected or absorbed by Earth's atmosphere.

C) Some of the energy is reflected back into space by the Moon.

D) Energy is lost through the process of overcoming the Sun's large gravitational force.

Answers

The answer is C) some of the energy is reflected back into space by the moon

What larger part of the body do cells make up?​

Answers

Each cell has a size and shape that is suited to its job. Cells that do the same job combine together to form body tissue, such as muscle, skin, or bone tissue.

Answer:

i pretty sure it ovum :)

Explanation:

What appearance is liquid and gas? Choose all that apply.
A: Flows
B: Rigid
C: Stays at bottom of the container
D: Holds it's shape
E: Fills container
F: Takes shape of container
G: No visible shape

Answers

Answer:

2 shows the differences among solids, liquids, and gases at the molecular level. A solid has definite volume and shape, a liquid has a definite volume but no definite shape, and a gas has neither a definite volume nor shape

Explanation:

What changes occur to the ratio of surface area to volume as a cell
grows?

Answers

Answer:

As a cell grows, its surface area-to-volume ratio decreases

The image below shows how wolves and dogs compare to some other animals in the levels of classification.



Based on this chart, which pair of organisms are most closely related?

Insect and rabbit
Cat and rabbit
Insect and fish
Cat and wolf

Answers

I think the answer is cat and rabbit

Look at the graph below. A graph is shown with Absolute magnitude shown on y axis and Surface temperature in degree Celsius shown on x axis. The Dwarf stars are shown along a slanting line from coordinates 30,000 and minus 3 to 10,000 and minus 4. The Main Sequence stars are shown along a slanting line from coordinates 20,000 and minus 2 to 2,000 and minus 6. The giants are shown along a line parallel to the x axis from coordinates 5,000 and 2 to 2,000 and 3. The supergiants are shown along a line parallel to the x axis from coordinates 7,500 and 4 to 2,500 and 4. Point A has coordinates 20,000 and minus 4. Point B has coordinates 2,500 and minus 4. Point C has coordinates 5,000 and 2. Point D has coordinates 7,000 and 4. Which of the following stars is most likely to be red? Star A Star B Star C Star D

Answers

Answer:

Star A

Explanation:

If you look directly at the diagram, the dwarf stars are labeled under 'A' and are the least in mass and temperature.

Being the smallest and coldest, dwarf stars most commonly have red coloration, which would make them the obvious choice.

Star A which is a dwarf star has the coldest temperature, and therefore is a red star since red stars are the coldest stars.

What are stars?

Stars are a large self-luminous bodies whichbpriducw large amounts of heat energy and light energy as a result of the nuclear reactions occurring within them.

Stars have different colors and different sizes.

Red stars are the coldest stars and also the least massive.

From the chart, Star A which is a dwarf star has the coldest temperature, and therefore is a red star.

Learn more about red stars at: https://brainly.com/question/11562269

#SPJ2

True of False: Marsh was able to prove that animals changed over time.

Answers

Answer:

True

Explanation:

Hope this helps :D Have a great day..can i hav brainliest?

I think the answer is true


:):):):):):):):)

Which blood component fights and destroys disease-causing bacteria and
viruses?

Answers

Answer:

white cells

Explanation:

the answer is white blood cells

Which of these are an important part of a scientific process? ​

Answers

Answer:

Is it multiple choice?? If it is, then show us the options

Explanation:

What is a constant?
O a variable
a number that stands alone with no variable
O the number in front of the variable
O two terms that look exactly the same


need help please

Answers

Answer:

a number that stands alone with no variable

Hope this helps!

What are three differences between rocks and soil

Answers

Answer:

Rocks are made of one or more minerals. based on the way the rock was formed: sedimentary metamorphic and igneous Soil is formed of fine rock particles mixed with air, water and particles from dead plant and animal matter.


Which is not a likely economic tool to address environmental issues?
Emissions fees and taxes

Responsibility for a product from production to disposal

Small business liability relief

Defunding government regulation

Answers

Explanation:

Policy-makers have two broad types of instruments available for changing consumption and production habits in society. They can use traditional regulatory approaches (sometimes referred to as command-and-control approaches) that set specific standards across polluters, or they can use economic incentive or market-based policies that rely on market forces to correct for producer and consumer behavior. Incentives are extensively discussed in several EPA reports

Two basic types of traditional regulatory approaches exist. The first, a technology or design standard, mandates specific control technologies or production processes that polluters must use to meet an emissions standard. The second, a performance-based standard, also requires that polluters meet an emissions standard, but allows the polluters to choose any available method to meet that standard. Performance-based standards that are technology-based, for example, do not specify a particular technology, but rather consider what available and affordable technologies can achieve when establishing a limit on emissions. At times, EPA may completely ban or phase out the use or production of a particular product or pollutant, as it has done with chlorofluorocarbons (CFCs) and certain pesticides. Regulations can be uniform or can vary according to size of the polluting entity, production processes, or similar factors. Regulations are often tailored in this manner so that similar regulated entities are treated equally. MARK AS BRAINLIEST IF IT HELPS

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