PLEASE HELP ME - In 1839, Schleiden and Schwann began formulating a theory of cells and their role in living organisms. Over time, cell theory has been updated. Modern theory is summarized below. All known living things are made up of cells. The cell is the structural and functional unit of all living things. All cells come from pre-existing cells by division. The flow of energy occurs within cells. Cell theory explains all of the following except a. the growth of animals. b. how viruses require the cells of living organisms to survive. c. how bacteria reproduce. d. the storage of chemical energy in plant cells.​

Answers

Answer 1
It made it possible to actually see cells. Explanation: With the development and improvement of the light microscope, the theory created by Sir Robert Hooke that organisms would be made of cells was confirmed as scientist were able to actually see cells in tissues placed under the microscope.
Answer 2

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Related Questions

What happens when two
protons get close together?
A. They are attracted to each other.
B. They repel each other.
C. Nothing happens.

Answers

Answer:

they repel each other

Explanation:

in basic chemistry:

protons repel other protons

protons are attracted to electrons

electrons repel electrons

Answer:

B. they repel

Explanation:

I'm learning the same thing lol

i need some help on this i dont know can someone plz help me

Answers

Answer:

D is your answer I believe

Which pair of waves could overlap to produce a wave with a higher amplitude through interference?​

Answers

Answer:

D: Two waves of the same amplitude with crests that are perfectly aligned

Explanation:

A P E X

Which shows the levels of organizational hierarchy listed from least complex to most complex?
O organism, population, community
O species, ecosystem, community
O population, community, species
O organism, community, population

Answers

Organism, population, community (first choice)



I hope this helped out, have a nice day! :)

If a sample originally had 120 Adams of carbon 14 how many atoms will remain after 17,190 years

Answers

Answer:

15 atoms

Explanation:

About 15 atoms out of the 120 Adams would remain.

Generally, the half-life of a substance is the time it takes for one-half of that substance to disintegrate.

Carbon 14 has a half-life of approximately 5,730 years. 17,190 years means that the sample had stayed for 17,190/5,730 which is equal to 3 carbon-14 half-lives.

Out of 120 Adams,

the first half-life will reduce 120 to 60 Adamsthe second half-life will reduce 60 Adams to 30 Adamsthe third half-life will reduce 30 Adams to 15 Adams.

Hence, at the end of the 17,190 years, approximately 15 Adams would remain.

how does the respiratory and digestive system work together to maintain homeostasis

Answers

You have four main types of tissues: epithelial, nervous, muscle, and connective tissue. Epithelial tissue covers the outside of the body. It also lines organs and cavities. Nervous tissue sends electrical signals. Muscle tissue helps you move. Connective tissue joins bones and cushions organs.
When groups of tissues work together, they are called organs. Some
examples of organs are the heart, lungs, skin, and stomach. When organs work together, they are called systems. For example, your heart, lungs, blood, and blood vessels work together. They make up the circulatory system.
There are eleven systems in the human body: muscular system, respiratory system, digestive system, integumentary system (skin), skeletal system, circulatory (or cardiovascular) system, excretory (or urinary) system, reproductive system, nervous system, lymphatic system, and endocrine system. Each system has a special job.
All of your body systems have to work together to keep you healthy. Your bones and muscles work together to support and move your body. Your respiratory system takes in oxygen from the air. It also gets rid of carbon dioxide.
1
2
3
4
5
6
Your digestive system absorbs water and nutrients from the food you eat.
Your circulatory system carries oxygen, water, and nutrients to cells throughout your body. Wastes from the cells are eliminated by your respiratory system, your excretory system, and your skin. Your nervous system controls all these activities with electrical impulses. If any system in your body isn't working properly, other systems are affected.
Think of your body as a building. A building has a plumbing system, a heating system, a cooling system, an electrical system, and a support system. If any system in a building breaks down, other systems can be affected.
As one example, think about a building's electrical system. Suppose a mouse chewed through an electrical wire to a furnace. Without electricity, the heating system would not work. If this happened in very cold weather, the plumbing system could be affected. Water pipes might freeze and burst. If a lot of water leaked into the building's walls, its support system would be damaged. Like a building's systems, your body's systems have to work together.
HERE IS UR ANSWER MATE!.....

The respiratory system brings oxygen into the lungs when you breathe. The digestive system breaks food down into nutrients such as glucose. Now the circulatory system enters the picture. It transports glucose and other nutrients from the digestive system to the cells.

HOPE IT HLPS UH WELL

HELP PLEASE

At Love Canal in the 1970s, there was an environmental disaster. In response, the Superfund law was passed. Why can we view Love Canal and the creation of the Superfund as a positive environmental event?

A. It allowed the EPA to find toxic waste sites and force the responsible parties to clean up the sites.
B. It provided money to businesses responsible for toxic waste sites to clean up their pollution
C. It helped boost the economy among those waste sites
D. It helped identify toxic waste site and move people away from them​

Answers

Answer:I’m stuck on the same question

Explanation:

Please someone helpp pleassseee pleaseeee

Answers

Answer:

Honeybees and Flowers

Honeybees and flowers

which of the following is an object used in relative dating

A-Carbon 14
B-Daughter Isotope
C-Index Fossil
D-Parent Isotope

i know for sure it’s not A

Answers

option C!!

Using index fossils for age estimates of rock layers is not a new idea. For example..
1) if you have a fossil trilobite and it was found in the Wheeler Formation.
2) Ammonites were common during the Mesozoic Era. They were not found after the Cretaceous period

The object that is used in relative dating is Index Fossil. Thus, option C is correct.

What is Fossil records?

Fossil records are described as the position of found fossils all through the surface or the layers of the earth. The older the fossils are, the deeper it is found. Fossil records are also considered to be gathered information about the total number of the discovered fossils and the data obtained from them.

Fossil records are important guides to determine how life existed before. If you are to assemble a fossil, you will be able to see and tell the evolutionary changes that happened over the past years. Fossil records are evidences pointing out that life before is totally different from now.

Index fossils are fossils that are common yet were only present for a brief time. By comparing a rock layer to other rock layers, index fossils enable scientists to determine the relative age of a rock layer. Organisms that are still alive today yet have undergone little alteration over millions of years are known as living fossils.

Therefore, The object that is used in relative dating is Index Fossil. Thus, option C is correct.

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The workers who paid a rate for every day they work are known as

Answers

Answer:

piece work

Explanation:

I hope this is right

what is the next number of the sequence?

0.99, 9.9, 99, 990, ____

Answers

I believe the next number is 9900

Reason: To get the next number in the sequence, move the decimal point

0.99 —> 9.9

9.9 —> 99.

99. —> 990.

990. —> 9900.

Sorry if wrong

Pls I need answers at least one answer of any of the questions

Answers

Have you ever wondered how many times your heart beats in a day, a month, a year—or will beat in total throughout your life? Over an average lifetime, the human heart beats more than 2.5 billion times. For a person to keep their heart healthy, they should eat right, not smoke and get regular exercise. In this science activity, you'll measure your heart rate during different types of physical activities to find out which gives your heart the best workout to help keep it fit.
Background
A 150-pound adult has about 5.5 liters of blood on average, which the heart circulates about three times every minute. A person's heart is continuously beating to keep the blood circulating. Heart health experts say that the best ways to keep our hearts healthy is through a balanced diet, avoiding smoking and regular exercise.

all you need is in the photo ​

Answers

Pretty sure it’s third choice :))
I think it would be the third option

Why is biodiversity important for ecosystems?

Answers

Answer:to stop from extinction

Explanation:

Can someone please helpppppo I’ll mark the brainliest

Answers

Answer:

C [the third one btw]

Explanation:

He believed that evolution gradually [slowly] happened over time.

Hope this helps :D Have a great day

The freezing point of a mixture of water and salt is
A. higher than that of pure water
B. the same as that of pure water
C. lower than that of pure water
D. none of the above

Answers

Answer:

lower

Explanation:

salt makes thing freeze faster

Answer:

A

Explanation:

Because when you mix a mixture and pure substances it’s higher

Which of the following statements about plankton or nekton is NOT correct?
a. Nekton are active swimmers.
b. Phytoplankton are important primary producers.
c. All plankton are closely related to plants.
d. Plankton drift or swim weakly.
e. Zooplankton are heterotrophic plankton.

Answers

Answer:

B is the answer

Explanation:

plants make their own food and in this case phytoplankton aslo plankton are known as plants

What is the term for traits an organism possesses that help it survive better?

a.
Permutations


b.
Mutations


c.
Generations


d.
Adaptations

Answers

Answer:

d. adaptations

Explanation:

Match each underlined word to its correct meaning based on the context of the sentence. Tom had long been picking his way cautiously through this treacherous forest; stepping from tuft to tuft of rushes and roots, which afforded precarious footholds among deep sloughs. It was a dreary memento of the fierce struggle that had taken place in this last foothold of the Indian warriors. He was sulky, however, and would not come to terms: she was to go again with a propitiatory offering, but what it was she forbore to say. At this propitious time of public distress did Tom Walker set up as a usurer in Boston.

Answers

Answer:

A. Tom had long been picking his way cautiously through this treacherous forest;  stepping from tuft to tuft of rushes and roots, which afforded precarious footholds among deep sloughs.  - 3.dangerous.

B. It was a dreary memento of the fierce struggle that had taken place in this last foothold of the Indian warriors. - 4.bleak.

C. He was sulky, however, and would not come to terms: she was to go again with a propitiatory offering,  but what it was she forbore to say. - 2.conciliatory.

D. At this propitious time of public distress did Tom Walker set up as a usurer in Boston. - 1.favorable .

Explanation:

The given underlined words in each sentence are-

1. "Precarious" refers to something unstable, unconfirmed, dangerous, uncertain, unreliable. So, when used in the given sentence, it suggests the dangerousness of the foothold that Tom had to depend on.

2. The word "dreary" is also used for something dull, uninteresting, bleak. It is used to describe the banal, cheerless memento of the fight the Indian warriors had given.

3. "Propitiatory" is another word used to describe something that is like a conciliatory offering, a token of appeasement, or trying to please someone or something. In the given sentence, it is used to describe how she will be offering a conciliatory act to him.

4. The word "propitious" is synonymous with something favorable, advantageous, presenting a promising idea. And in its use, the sentence presents how the public distress is favorable for Tom Walker to set up his office.

Answer:

- 3.dangerous. Tom had long been picking his way cautiously through this treacherous forest;  stepping from tuft to tuft of rushes and roots, which afforded precarious footholds among deep sloughs.

- 4.bleak. It was a dreary memento of the fierce struggle that had taken place in this last foothold of the Indian warriors.

- 2.conciliatory.

He was sulky, however, and would not come to terms: she was to go again with a propitiatory offering,  but what it was she forbore to say.

- 1.favorable . At this propitious time of public distress did Tom Walker set up as a usurer in Boston.

Explanation:

Please help As fast as you can!

Answers

The answer is c because boy have the same rock layer you can use they key to help you

Which are the following statements are TRUE when concerning cells?
A: Prokaryotic cells can only produce eukaryotic cells
B:All cells come from pre-existing cells
C:Cells must always reproduce with other cells

D:Plant cells can only reproduce with animal cells

Answers

Answer:

I think it will option b hope it helps

True or false: recycling can positively impact Earth's spheres.

Answers

Answer:

true

Explanation:

Answer:

True

Explanation:

Recycling provides big benefits to the planet's atmosphere by reducing overall materials consumption. ... The more we recycle, the more we reduce the impacts of global warming on the earth's climate. Animal Safety. Ocean-dwelling animals are threatened by the large amounts of plastic trash dumped into the seas every year.

What would be the concern if a high percentage of cells were in some phase of Mitosis?

Answers

Answer:

When cell division goes wrong, harmful mutations affect the daughter cells

When these errors are not corrected, one of the daughter cells will be born lacking a particular chromosome while the other will inherit an extra copy of the chromosome

Explanation:

Water that falls onto land surfaces is either soaked into the ground or flows downhill into a body of water. The water that soaks into the ground is called groundwater.

Soil and rock that allow this water to pass through them are called ________.
A. aquifers
B. compacted
C. permeable
D. runoff

Answers

Materials that allow water to pass through the are called....

C. Permeable

The capacity of a rock or other substance to let the passage of water is known as permeability, hence option c is correct.

What is groundwater?

Groundwater may readily flow through permeable materials because the pore space is linked throughout the rock or sediment. Mud and clay are examples of materials with great porosity yet very limited permeability.

An aquifer is a water-bearing rock that easily transfers water to wells and springs, the aquifers may be dug into and water pumped out.

Therefore, water that falls onto land surfaces flows into water bodies or it may be soaked in the ground, this water flows through the soil and rock which are permeable, hence option c is correct.

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NEED HELP WITH THESE 4 QUESTIONS WILL GIVE BRAINLIST!!!
1.What were some characteristics that the finches developed to give them an advantage in surviving?

2.How do you think that the one species of finch evolved into many different species, each with its own advantages?

3. In what ways do these advantages help the finches to survive and reproduce?

4. What might have happened if the finches didn't evolve into many different species?

Answers

Answer:

1. Because the drought reduced the number of seeds and finches with bigger beaks were able to eat the larger and harder seeds so more of them survived.

2. Summary: Changes in the size and form of the beak have enabled different species to utilize different food resources such as insects, seeds, nectar from cactus flowers as well as blood from iguanas, all driven by Darwinian selection

3.  Medium ground finches with larger beaks could take advantage of alternate food

4. three species of Darwin's tree finches have been known to inhabit Floreana  but no birds singing that song on Floreana have been heard in many years.

Explanation:

which layer of the earth is made out of melted metal?

Answers

The outer core. A molten nickle- iron alloy.

What is the phase change from gas to liquid?
A. Sublimation
B. Condensation
C. Vaporization
D. Transpiration

Answers

Answer:

Condensation

Explanation:

Condensation is the phase change from gas to liquid. For example, water vapor condenses when you are taking a shower because wet spots show up on a mirror after taking a shower.

Answer:

Condensation

Explanation:

Sublimation is when a solid turns into a gas. Condensation is when water in the air collects to form droplets that gather on a surface/object. Vaporization is when a liquid forms into a gas. Transpiration is a thing in plants where water transfers throughout the plant.

Can someone help me with the question please.

Answers

Answer:

B Sun > Algae > Shrimp > Red drum

Which is located at the beginning of a gene?

terminator
promoter
mRNA
intron

Answers

Promoter................

6B(SCIENCE) (6BB OOB)
4
What is the difference between evaporation and boiling? *
(1 Point)
A) There is no difference - they are exactly the same.
B) Evaporation, unlike boiling, occurs at all temperatures.
C) In evaporation, unlike in boiling, there is no state change.
D) In boiling, unlike in evaporation, the liquid volume reduces.
This question is required.​

Answers

B) Evaporation , Unlike boiling, occurs at all temperatures
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