Biology Middle School

Emma bends and straightens her arms while lifting weights. Which body systems work together to make this happen?

a
Nervous and skeletal

b
Muscular and endocrine

c
Skeletal and muscular

d
Nervous and endocrine

Answers

Answer 1

Answer:

c

Explanation:

Related Questions

A single chromosome contains many genes.
True
False

Answers

Answer:

True . It contains hundreds to thousands genes.

Answer:

yus

Explanation:

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:

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:

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.

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

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.

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

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:

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.

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:

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

Biological Levels of Organisms:
Cells
Tissues
Organs
Organ Systems
Organism

Answers

Organs organ systems cells tissues organisms
organs, organ systems, cells, tissues, organism

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).

What organelles are usually found in both plant and animal cells?
NO LINKS PLEASEEEEEEEEEEE

Answers

Answer:

Some common examples of organelles  that they both share are nucleus, mitochondria, and  lysosomes

Explanation:

Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal elements.

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

Answers

Gas maybe hssgjursdvjh

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 diameter of a carbon atom is 2.2 × 10 -8cm. Write this as a whole number. (please help. i will give brainliest)

Answers

Answer:

14cm

Explanation:

The answer is 14cm. Hope this helps!

After studying plate tectonics, Lee became interested in mid-ocean ridges and how rock develops as the tectonic plates spread apart, so he decided to investigate further. Which of the following statements are true about sea-floor spreading? Choose the three statements that apply. A. Young rock forms in layers on the ocean floor as spreading occurs. B. Magma flows through cracks in Earth's crust and hardens. C. Continental crust is formed by the ridges as they grow. D. Mid-ocean ridges are the sources of the spreading. E. Older rock is farther away from the mid-ocean ridges.

Answers

Answer:

A, B, E

Explanation:

The magma rising through the cracks makes new younger rocks close to the crack as the magma follows out and hardens. This means that rocks farther away from the crack are older because they where formed when they where right next to the crack. They are father away meaning they got pushed back as time went on.

Mid ocean ridges are a result of the spreading not the cause.

Because they are in the middle of the ocean and they are moving constantly i dought the mid ocean ridges are creating continents.

Young rock forms in layers on the ocean floor as spreading occurs, magma flows through cracks in Earth's crust and hardens, and older rock is farther away from the mid-rock is farther away from the mid-ocean ridges. Thus, the correct options are A, B, and E.

What is Sea-floor spreading?

Seafloor spreading is a geologic process in which the plate tectonic and large slabs of the Earth's lithosphere split apart from each other in space. Seafloor spreading and other tectonic activities are the result of mantle convection, which is a slow, churning motion of the Earth's mantle.

The magma in the Earth rise through the cracks in rocks that makes new younger rocks which are close to the crack as the magma follows out and hardens. This means that rocks which are farther away from the crack in the rock are older as they were formed when they were right next to the crack.

Mid ocean ridges are formed as a result of the Seafloor spreading. Because they are present in the middle of the ocean and are constantly moving in the mid ocean ridges which create continents.

Therefore, the correct options are A, B, and E.

Learn more about Sea-floor spreading here:

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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

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

Can someone help me with this asap

Answers

Answer:

The number of caterpillars would increase.

Explanation:

I'm sure

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. :)

how many pairs of chromosomes are in a platypus??

Answers

Answer:

The platypus has 26 pairs of chromosomes in total.

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.

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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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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?

In your own words, who were the alchemists? What do you know about them and their work so far?

Answers

Answer:

an alchemist is a person versed in the art of alchemy their goal was to create philosophers stone and discovery of elixir of life

Explanation:

hope it helps❤️

Alchemy is an ancient practice shrouded in mystery and secrecy. Its practitioners mainly sought to turn lead into gold, a quest that has captured the imaginations of people for thousands of years. However, the goals of alchemy went far beyond simply creating some golden nuggets.

Alchemy was rooted in a complex spiritual worldview in which everything around us contains a sort of universal spirit, and metals were believed not only to be alive but also to grow inside the Earth. When a base, or common, metal such as lead was found, it was thought to simply be a spiritually and physically immature form of higher metals such as gold. To the alchemists, metals were not the unique substances that populate the Periodic Table, but instead the same thing in different stages of development or refinement on their way to spiritual perfection.

As James Randi notes in his "Encyclopedia of Claims, Frauds, and Hoaxes of the Occult and Supernatural," "Beginning about the year 100 and reaching its flower in medieval times, alchemy was an art based partly upon experimentation and partly upon magic. Early investigators of natural processes centered their search on a mythical substance they knew as philosopher's stone, which was supposed to possess many valuable attributes such as the power to heal, to prolong life, and to change base metals into precious metal — such as gold." (This "philosopher's stone" was not a literal stone but instead a wax, liquid, or powder that held magical powers.)

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

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

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