Chemistry Middle School

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Answers

Answer 1
Answer:

C

Explanation:

Smooth muscles are in the digestive system, skeletal muscles are the ones we voluntarily move, and cardiac muscles are for the heart.

Related Questions

Which statement is true about the elements in the periodic table?
Elements in family 2 are all nonmetals.
Elements in period 4 are all metals.
Elements in period 6 have similar properties.
Elements in family 7 have similar properties.
(Please don't send a link to a different site and just tell me which one it is)

Answers

The correct answer is elements in family 7 have similar properties because elements in the same group or family have the same number of valence electrons.

Answer:

Give the other person brainliest

Explanation:

Describe how sound waves travel through a solid, liquid, and gas. Why does it move differently through these different mediums?

Answers

Answer:

Sound travels more quickly through solids than through liquids and gases because the molecules of a solid are closer together and, therefore, can transmit the vibrations (energy) faster. Sound travels most slowly through gases because the molecules of a gas are farthest apart.

hope this helps.

Why do people mix up weather and climate?

Answers

Answer:

The difference between weather and climate is a measure of time. Weather is what conditions of the atmosphere are over a short period of time, and climate is how the atmosphere "behaves" over relatively long periods of time.

Explanation:

please mark this answer as brainlest

Answer:

Weather and climate are not the same things, yet we might get confused between the two.

Explanation:

sorry if this does not answer your question

Please help
Will give brainliest
A - 1
B - 2
C - 3
D - 4
E - 5

Answers

Answer:

B-2

Explanation:

In the graph you can so that two of the shapes ae fully black, that means that they are color blind, the half colored ones means they are a carrier but they aren't color blind. So two males in the offspring are color blind.

I believe the answer is B -2

ASAP LIKE RIGHT NOW
What is the frequency of a wave?

Answers

Answer:

The number of waves that pass a fixed point in a given amount of time

Explanation:

Explain the concept of the conservation of mass during a change in the state of matter.

Answers

Answer:    The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.

Answer:

The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants. this is what I think I hope I didn't get the same answer as anyone else.

Explanation:

Suppose a dam was built that prevented melted snow from reaching streams and rivers below a series of mountains. How may this affect the water cycle?

Answers

Answer:

The water may not fall for a while because the water that dosen't go down the stream won't be able to evaporate. So rain clouds won't form in that area.

Explanation:

I hope I helped.

What are the genotypes and phenotypes of the offspring in this image?

Answers

Answer:

Genotypes: Hh, Hh, hh, and hh

Phenotypes: Short Hair, Short Hair, Long Hair, Long Hair

Have a nice day! ^-^

Explanation:

Genotypes:-

Hh, Hh, hh and hh

Phenotypes:-

Hh = Hh = May be long hair or short hair

hh = hh = Short hair

So,

Mainly phenotypes are Long hair, long hair, short hair and short hair.

20 points I will give you brainliest if you answer in 5 mins
How is an image formed by a plane mirror?
A) Light bounces off of the mirror and then appears to come from in front of the mirror.
B) Light passes through the mirror and then appears to come from behind the mirror.
C) Light passes through the mirror and then appears to come from in front of the mirror.
D) Light bounces off of the mirror and then appears to come from behind the mirror.

Answers

Answer:Light bounces off of the mirror and then appears to come from behind the mirror.

Explanation:Plane mirrors form images that are virtual, upright and the same size and shape as the object it is reflecting.

When rays of light from the object hits a plane mirror they bounces off the mirror,that is they undergo reflection, and appear to originate from behind the mirror, resulting to the formation of a virtual image.

The image formed appears to be behind the plane in which the mirror lies. A virtual image is an image that is formed at a location from which the rays of light appear to come from. The image can not be formed on a screen..

(06.05 LC)

What makes the results of a scientific experiment accurate? (5 points)
Having multiple trials
Lacking any supporting data
Working in a lab
Using a hypothesis that is always true

Answers

Answer:

having multiple trials

Explanation:

I hope this helps :)

Answer:

the other person is right :)

Explanation:

What is a medium? In science.

Answers

Answer:

A medium is a substance that allows any material to travel through it.

Explanation:

Which medical condition(s) can prevent molecules from entering the cell?

Answers

Answer:

Explanation:

any type of spreading disease that kills

Answer:

The cell membrane's main trait is its selective permeability, which means that it allows some substances to cross it easily, but not others. Small molecules that are nonpolar (have no charge) can cross the membrane easily through diffusion, but ions (charged molecules) and larger molecules typically cannot.

Explanation:

pease mark this answer as brainlest

pls helps and no files since my school have blocked things like that on my computer

Answers

I did this the answer is B
the answer is b. hope this helps

what is the third largest asteroid in the asteroid belt with a diameter of 267 miles

ONLY ONE
ANSWER

Answers

juno is the largest asteroid
Ceres, Pallas, and Vesta are the three largest asteroids.

What can you tell about the location of the Sun from this illustration of the Milky Way? A) It is outside of the Milky Way. B) It is near an outer arm of the Milky Way. C) It is on the right side of the Milky Way. D) It is within the Central Bulge of the Milky Way. Hint

Answers

It is within the central bulge

Name two positive effects caused by high biodiversity.

Answers

Answer:

Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play. For example, A larger number of plant species means a greater variety of crops. Greater species diversity ensures natural sustainability for all life forms.

Explanation:

Answer:

CLIMATE CHANGE AND ECO SYSTEM

Explanation:

How does the ocean currents change the air temperature?
NOT TAKING ANSWERS FROM G00GLE

Answers

Answer:

sending heat toward the polar regions

Explanation:

It makes the heat go towards the polar regions

PLEASE HELP MEEE I WILL MARK BRAINLIST FOR THIS ITS SUPER SIMPLE....BUT U MUST TYPE EVERYTHING needed ASAP

all I need you to do its to type out these pictures word for word it pretty simple

Answers

Other Causes of Extinction

In addition to habitat destruction, other human-caused problems are also threatening many species. These include issues associated with climate change, pollution, and over-population.

Habitat Destruction

Your habitat can be altered, and you can easily adapt. Most people live in a few different places and go to a number of different schools throughout their life. But a plant or animal may not be able to adapt to a changed habitat.

Humans often destroy the habitats of other organisms. Habitat destruction can cause the extinction of species.

Extinction is the complete disappearance of a species. Once a species is extinct, it can never recover.

Invasive Species

As we have learned earlier in the unit, invasive or non-native species can also change an ecosystem.

When invasive species enter an ecosystem they change that ecosystem's dynamic and cause a disruption to the flow.

Climax Community

A climax community is the end result of ecological succession. The climax community is a stable balance of all organisms in an ecosystem, and will remain stable unless a disaster strikes.

Human Activity

It's important to note that human activity has the greatest impact on the amount and quality of wildlife habitat in many areas of the world. Wildlife habitat can be destroyed or its quality diminished as a result of urban growth, agricultural practices, pollution, or habitat destruction.

People can also have a positive impact on wildlife populations through improvement and protection of habitat or ecosystems. Planting trees and shrubs and providing sources of food and water in individual yards is one way people can help wildlife.

PLEASE HELP MEEE I WILL MARK BRAINLIST FOR THIS ITS SUPER SIMPLE....BUT U MUST TYPE EVERYTHING needed ASAP
all I need you to do its to type out these pictures word for word it pretty simple

Answers

Answer:

Other Causes of Extinction in addition to habitat destruction, other human-caused probelms are also threatening many species. These include issues associated with climate change, pollution, and over-population.

Invasive Species as we have learned earlier in the unit, invasive or non-native species can also change an ecosystem. When invasive species enter an ecosystem's dynamic and cause a disruption to the flow.

Habitat Destruction Your habitat can be altered, and you can easily adapt. Most people live in a few different places and go to a number of different schools throughout their life. But a plant or animal may not be able to adapt to a changed habitat.

Humans often destroy the habitats of other organisms. Habitat destruction can cause the extinction of species.

Extinction is the complete disappearance of a species. Once a species is extinct, it can never recover.

Explanation:

no link just right answer

Answers

Answer:

I think it is C since the trees hold the habitats of the animals and provide cover so with less animals there is less diversity.

Select the statement below that best describes how environmental conditions affect an individual’s likelihood of survival and reproduction.

Explain why you chose the answer you did to the question above.

Answers

B - Let’s say for example you put 2 penguins onto Antarctica and then you put 2 giraffes onto the same place. Giraffes have very soft skin and can’t tolerate the cold and basically need warmth to live. They also cannot get their primary food source which are leaves, the environment matters a lot and the penguins would flourish as they would be made for fishing in the ice cold water.

Nicolaus Copernicus was a Polish astronomer who is best known for the theory that the sun is near the center of the universe and that the earth and other planets revolve around it. Copernicus did not believe that the planets were influenced by or revolved due to the sun; instead he believed that the sun was located near the center of the universe and that it was this center which influenced those bodies and caused them to revolve. When this theory was first published, the scientific community did not accept it. Which reason BEST explains the reason for rejection of this theory? A) It was not published until his death. B) It was not understood by scientific world. C) It lacked sufficient evidence and explanation. D) It lacked practical examples in supporting theory.

Answers

It is B nevermind I thought it was c but it wasn't.

Answer:

So hey Which one was it ?

Explanation:

A solution that contains more OHions than H30+ ions, is called a(n)... O A. base O B. acid O C. neutral solution O D. isosolution​

Answers

Answer:

a

Explanation:

compare the properties of the moon to those of earth

Answers

Out of all the planets in the solar system, Earth is the only planet that scientists can study in detail. Atmospheric scientists can measure minute by minute atmospheric conditions (weather) from ground level to the “edge of space” by use of surface instruments and space vehicles. Geologists not only can detail surface features and how they change over time, but also can deduce Earth's structure to its very center. The division of Earth's interior into a core, mantle, and crust structure sets the context for how we study the other similar planets.

A wellington has higher tempatured and more precipitation

B Wellington has higher tempatures and less precipatation

C Wellington has lower tempatures and less precipatation than nairobi

D Wellington has lower tempatures and more precipatation than Nairobi
Based on their climate zones, which statement best compares the climates of Wellington and Nairobi?

Answers

I believe it is A
Please give me Brainliest
I’m pretty sure the answer is A

Out of metal, Non-metal and metalloids. which one needs contact to transfer heat?

Answers

Metal because it’s a conductor to heat
Metal, hope it helped

What's wrong with Danny? Danny is 13 years old and loves to ride dirt bikes. On Saturdays Danny would meet with his friends at Tony's pizza shop before they went to the track. One day Danny noticed that every time he ate he started feeling sick. His stomach starts to hurt and he had diarrhea. Plus, he was always tired. Danny's mom took him to the doctor to see what was wrong. Doctor Lawson conducted multiple test and realized that Danny's digestive system wasn't functioning properly. He was not producing enough digestive enzymes. What could be wrong with Danny? What medical condition does Danny have?

Answers

He has diabetes but I’m not sure what type it could be type 1 diabetes or type 2 diabetes

Tectonic activity causes potential energy to build up in the crust. An earthquake occurs when this potential energy is released within the crust. Which statement BEST describes what happens when the energy is released?
Select one:

a. It generates seismic waves that spread out in all directions around Earth.

b. It generates heat waves that affect climate changes around Earth.

c. It generates changes in the magnetic field of Earth.

d. It generates changes in the orbiting speed of Earth.

Answers

Answer:

c. It generates changes in the magnetic field of Earth.

Explanation:

please mark this answer as brainlest

Answer:

C

Explanation:

What is the smallest unit of an element that retains the properties of that element?
A.Eletrons
B.Molecule
C.Neutron
D.Atom

Answers

Answer:

Atom

Explanation:

The smallest unit which maintains an element's properties is an atom.

An atom is the smallest unit of matter that retains all of the chemical properties of an element.

PLS HELP ME NO LINKS

Answers

Probably A only because it looks differ from the rest that’s what I go off of and somehow get through school that way
The answer is definitely A.
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