Biology Middle School

Fish must have oxygen in the water to survive.

How would a decrease in oxygen affect the fish in the aquarium?


The variety of fish would increase.

The variety of fish would decrease.

The number of fish would decrease.

The number of fish would increase.

Answers

Answer 1
The number of fish would decrease :)
Answer 2
The number of fish would decrease

Related Questions

the diagram shows the life cycle of a fern. what does stage 4 show?

Answers

d. a zygote forms when a sperm fertilizes an egg cell

Answer:

I believe the answer is D.

Explanation:

BRAINLIEST IF CORRECT! which event is an example of sexual reproduction in plants?

Answers

Answer:

Mosses form spores in capsules

Answer:

I am pretty sure it is A.

Explanation:

Will give brainliest
What is this?

Answers

a micro/nano organism

Pls help No Links
You are an American scientist working with Chinese scientists to protect the endangered giant panda. As you can't speak or write Chinese, how do you make sure that your coworkers and you are working on the same animal?

A. you both speak the same language

B. you use pictures

C, you speak using genus and species

D. you only text or send emails

Answers

Answer:

B. use pictures

Explanation:

It is the most obvious answer because the others don't make sense, you can't speak the same language, a and c are wrong, you can't write Chinese so d is wrong, using pictures will let the other person know what animal you are working on.  

You use pictures. Other people will be able to understand what you want, even if you don’t speak their language.

1. Energy from the is transferred to Earth’s surface. Some of that energy is then ____________ to the air ________ the surface.
2.Locations closer to the equator have a __________ temperature. Locations farther away from the equator have a _________ temperature.
3.Locations close to the equator get the ________ energy from the sun. Locations farther away from the equator get the _________ amount of energy from the sun.

Answers

Answer:

transferd to the air reflect the surface

too cold tem purature most , less

Explanation:

When the tide goes out, where does the water go?

Answer with at least two complete sentences.
Be sure to check your grammar and spelling.
You can use the sentence starters below to help you answer:
When the tide goes out, the water ________________________.

Answers

Answer:

When the tide goes out, the water retracts back into the sea. The water moves between the sun and the moon which pulls the water back into the sea.

Explanation:

Tides are caused by the gravity of both the moon and the sun “pulling” at the water in the sea. Because the Earth is constantly turning, the “pull” of gravity affects different places as each day goes on - so when the tide is “out” in your area, it is “in” somewhere else.

^^^^^^^ theyre 100% correct

1. If an asteroid
created enough
dust to block out
the Sun, what
would be the effect
on green plants, as
well as other life on
Earth? Why?

2. Write the
photosynthesis
equation using
either words or
chemical symbols.
Extra kudos for
balancing it!

Answers

1The green plants would all die out because they would not be able to get sunlight for energy. The rest of the earth would probably die from coldness as the sun is blocked.

26CO2 + 6H20 + (energy) → C6H12O6 + 6O2 Carbon dioxide + water + energy from light produces glucose and oxygen.

Find the functions of the following cell-organelles and organs
1) Nucleus
2) Mitochondria
3) Cell wall
4) Lungs
5) Kidneys
6) Blood
7) Saliva

Answers

Answer:

ALL of the above

Explanation:

Can someone help me with this asap

Answers

Answer:

The number of caterpillars would increase.

Explanation:

I'm sure

Can someone help me with this Asap

Answers

It should b the answer A

Answer:

recycling of nutrients from dead organisms back into the soil

Explanation:

That is what decomposition is

PLEASE ANSWER THE ONES THAT ARENT CROSSED OUT ITS PAST DUE AND IM STUCK AND PLEASE DON’T JUST ANSWER FOR POINTS THANK YOU

Answers

Answer:

Collection:

1: runs

Condensation:

1: fall

2: condense

Precipitation:

1: Earth's

2: droplet

3: solid

Explanation:

hope this helps

3 solid ummmmm not sure about any of the other ones. try looking it up?

Do you think our society is wasteful in terms of natural resources? Defend your position by explaining the social and economic factors affecting our use of natural resources. Discuss how we can improve the way that we use natural resources. What are some social or economic factors that will make it difficult to improve the way that we use natural resources?

Answers

the Answer is: Any natural substance that humans use can be considered a natural resource. Natural resources are used to make food, fuel and raw materials for the production of goods. All of the food that people eat comes from plants or animals. Natural resources such as coal, natural gas and oil provide heat, light and power.

light needs matter or material to carry light true or false

Answers

false because light can come from natural resources and it doesn’t need materials it just needs to produce itself
False


Explanation:

Mama am

5. Diagram below shows four moon phases observed during July. O First quarter July 8 Moon Last quarter July 24 New Moon July 16 July 31 On which date would the next New Moon occur? ​

Answers

Answer:

August 6th

Explanation:

The next new moon will occur on 15 august. The time period between two new moons is 29.5, which is called a lunatic or synodic month.

What is the moon cycle?

The moon orbits the Earth once every 29.5 days, which is known as the moon cycle. Each month, as the Moon progresses through its cycle, which includes a New Moon and a Full Moon, it exhibits eight successive phases. A lunar eclipse occurs when Earth passes in front of the Sun and the Moon, obstructing the Moon's exposure to sunlight. The lunar surface is entirely or partially hidden by Earth's shadow.

Every 27.3 days (a sidereal month), the Moon completes one orbit around Earth, but until it reaches the point in its orbit where the Sun is at the same relative position, the Moon has not yet completed a synodic cycle. This is due to Earth's orbital motion around the Sun.

Hence, the next moon will occur on 15 august.

Learn more about the moon cycle, here:

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What factors can destroy populations and lead to the extinction of species?

Answers

Answer:

Natural disasters, deforestation, overpopulation, Invasive species to name a few.

sorry no idea ahhhhhhh

A single chromosome contains many genes.
True
False

Answers

Answer:

True . It contains hundreds to thousands genes.

Answer:

yus

Explanation:

What were some of the wing-color traits you observed in your individual butterflies?

Answers

they’re yellow but of course they all have different patterns
Most of the butterflies have brown spots on the outer ends of their wings, some even have the same two dots on both forewings (front wings). They all have the same grayish, black abdomen (body), plus all the butterflies have mostly yellow wings.

In which of these ways might an ectotherm respond to changes in environmental temperature?

fight or flight
move elsewhere
shiver
sweat or pant

Answers

Answer: move elsewhere :)

Explanation:

They must move elsewhere:))

The sun’s heat causes the water particles to ____ spread out.

Answers

I’m sorry if I’m wrong but I believe it’s evaporate
The sun’s heat causes the water particles to ( evaporate and transfer to gas and) spread out

do you believe alien's or external life exist outside of our world? why?

Answers

Answer:

This is not a question we can answer, this is a question only you can answer because it is asking for your personal belief on wether alien's exist outside of earth or not.

Explanation:

Answer:

I do believe that there could be alien life out there, but our radio signals just aren't powerful enough to reach the further parts of space.

Explanation:

Please answer this question in the picture dont just answer for points

Answers

Gas maybe hssgjursdvjh

Which of the following is an example of chemical digestion?
A: A whole grape enters your mouth and your teeth break it up into smaller pieces that are easier to swallow.
B: The bagel you ate this morning eventually leaves your body as a waste material called feces.
C: Your body uses the eggs you had for breakfast for energy, growth and healing.
D: Little pieces of chewed up hamburger are broken down into smaller molecules by enzymes.

Answers

Answer:

Food passes through a long tube inside the body known as the alimentary canal or ... canal is made up of the oral cavity, pharynx, esophagus, stomach, small intestines, ... Food begins its journey through the digestive system in the mouth, also ... Teeth chop food into small pieces, which are moistened by saliva before the ...

Explanation:

The answer is D! I actually had to answer this like 2 seconds ago

What are the biological levels of organisms? (Explain each one)

Biological Levels of Organisms:
Cells
Tissues
Organs
Organ Systems
Organism

Videos:
1. Watch the videos and answer the closing question.
2. Submit the closing question.
3. Finish anything from the last 5 weeks that you have not finished.

Answers

Answer:

1:  Cells

2: Tissues

3: Organs

4: Organ Systems

5: Organisms

Explanation:

1: A Cell is the basic unit of life. Some people refer to it as "building blocks of life."

2: Tissues are groups of cells that work together to achieve a certain task.

3: Organs are groups of tissue that work to make the vital parts of the body

4: Organ Systems are groups of organs that work together to provide for body function. EX: Respiratory System, Circulatory System, Digestive, etc.

5: Organisms are any living thing that have many organ systems that work together. EX: Humans.

Cells
Tissues
Organs
Organ systems
Organism


Cells make up tissues, tissues make up organs, organs make up an organ system an organ system makes up an organism. hoped this help. :)

Can someone help me with this ASAP!

Answers

Answer:

The answer is C.

Explanation:

There are dominant alleles present in three out of four (CC, Cc, Cc) and the recessive is always cc. Three out of four make 75% and one out of four is 25%. That makes 75% dominant and 25% recessive.

I hope this helps!

C b/c CC and Cc both show the dominant allele phenotypically which is 75% and 25% will show the recessive allele phenotypically (cc).

can someone help me with these please please will give Brainliest
1. Where would you find the largest supply of liquid fresh water on Earth? *

2. Is a city on the Ohio River in the Ohio or Mississippi watershed? *

3. Agricultural wastes sometimes include fertilizers, which are nutrients that aid plant
growth. How might these wastes affect a pond?

4. What would happen to the saturated and unsaturated zones of an aquifer during a long drought? What might happen to shallow wells? *

Answers

Answer:

1. Well I would say the Nile River.

2. Mississippi Waterwahsed.

3. Pollution it depends on the health of the water..

4. It might get fulled depending on the space.

Explanation:

BRAINLIEST IF CORRECT!!! the diagram shows the life of a dragonfly. which statement best explains the process occurring in step 2 of the diagram?

Answers

A is the answer dhdbbehehe

Answer:

the answer is C.

Explanation:

please help me on this!​

Answers

Answer:

White wool

Explanation:

The genotypes of every offspring will be Ww, making white dominant over black.

the answer is white wool *

Which example is an abiotic factor of an aquarium environment?

water


bacteria


coral


sunfish

Answers

Water since it is nonliving
Water because it’s the only non-living thing on the list

Will give brainliest
What is this?

Answers

Answer:

cells

Explanation:

it should be

This looks to be Paramecium aurelia (maybe I’m not sure)

Select the characteristics of a hydrogen bond: hydrogen attracted to weakly positive atoms a gravitational force intermolecular force between hydrogen and oxygen, fluorine, or nitrogen an attraction between polar molecules

Answers

Answer:

intermolecular force between hydrogen and oxygen, fluorine, or nitrogen

an attraction between polar molecules

Explanation:

these are the correct answers....

Hydrogen bond is a type of intermolecular force between hydrogen atom and oxygen, fluorine, or nitrogen atoms Thus, the correct option is C.

What is Hydrogen Bonding?

A hydrogen bond is a type of an intermolecular attractive force in which a hydrogen atom is covalently bonded to a small, highly electronegative atoms i.e., nitrogen, oxygen, and fluorine. Hydrogen atom is attracted to a lone pair of electrons on an atom in a neighboring molecule. Hydrogen bonds are very strong compared to other dipole-dipole interactions. However, these bonds are weaker than covalent bonds.

Hydrogen bonds are responsible for the surface tension properties of water. The bonds are also responsible for the relatively high boiling point of water molecules because of strong attractive forces.

Therefore, the correct option is C.

Learn more about Hydrogen bond here:

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