Many years ago, scientists working with cells developed what is now known as the cell theory. The cell theory states: – All living things are composed of one or more cells. – Cells are the basic units of structure and function in an organism. – Cells come only from the reproduction of existing cells. Which of the following observations best supports the cell theory?

Cells come in a variety of shapes and sizes.

Cells have different names for different structures.

Cells can live a very short time.

Cells from animals only create other animal cells.

Answers

Answer 1
A. Cells come in a variety of shapes and sizes

Related Questions

H-C-C-C-0-H
T-O-1
TO
Polor or non polar

Answers

polar i’m sure :)


hope it helps

GMO technology today is an important part of modern biotechnology and is used, among other things, to give bacteria, plants and animals new properties. This is possible by inserting a gene from, for example, a bacterium, into a plant or animal (transgenes).

The diagram provided represents some steps in a procedure used in the field of biotechnology SC.912.-16.10

This bacterial cell can now be used to produce

A. Insulin that can be used by humans

B. Human genes for enzymes that can be inserted into humans

C. The bacterial gene for insulin that can be inserted into humans

D. Enzymes necessary to treat human diseases

Answers

A would be the correct answer

Organisms whose genetic material has been modified are called Genetically modified organisms. The bacteria can be used for the production of Insulin that can be used by humans.

What are GMOs and transgenes?

Genetically modified organisms are altered and modified living things like animals, plants, a microorganisms that are modified by the methods of genetic engineering and recombinant DNA technology.

The genetic material that is modified and inserted in the host for the expression of the gene of interest is called a transgene. The genetically modified gene can be inserted in bacteria, plants and animals.

In the diagram gene for the production of human insulin is inserted in the bacterial DNA so the insulin produced can be used for the treatment of diabetic human patients.

Therefore, option A. bacteria cells can be used for the production of Insulin.

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Define: Temperate
Plzz help

Answers

Temperate is the relating to or denoting a region or climate characterized by mild temper
Definition:
relating to or denoting a region or climate characterized by mild temperatures or showing moderation or self-restraint.

Which of the following involves only abiotic factors?
A. a large rock being weathered by wind and rain
B. an otter using a stone to break open a sea urchin
C. a spider building a web in the corner of a building
D. a pine tree absorbing light from the Sun

Answers

A. This is because neither a rock, wind, or rain is a living organism.  

Answer:

A. a large rock being weathered by wind and rain.

Severe weather events can create ecological disturbances, which can impact biodiversity. Think about a severe weather situation you have experienced near your home or have witnessed on the news. In 3–5 sentences, explain how the severe weather event created ecological disturbances that impacted biodiversity.

Answers

Answer:

"Or Have Witnessed On The News" Hurricane Katrina was a weather event, that created huge ecological disturbances. The hurricane caused damage to 5 million acres of land, which included coastal forests where many animals called home. The storm killed thousands of humans and animals, and also sent potential invasive species to new environments.  The hurricane caused 10 coastal bird species to decline, the storm also caused disturbances in the aquatic wildlife with over 9 million fish being killed offshore due to the hurricane, the dolphins were also heavily impacted with many being injured in the storm, but most were rescued. The hurricane also caused freshwater overflood, it sent massive amounts of freshwater into coastal bays and estuaries which shifted the balance between salt water and fresh water.

Explanation:

My answer, i'd advise you to re-word it to advoid plagirism. For Biodeverisity Unit Test Essay Question

"O 1 Have Witnessed On The News" Hurricane Katrina turned into a climate event, that created big ecological disturbances. The storm prompted harm to five million acres of land, which protected coastal forests wherein many animals known as home.

The typhoon killed lots of people and animals, and additionally despatched capability invasive species to new environments. The storm prompted 10 coastal chicken species to decline.

The typhoon additionally prompted disturbances withinside the aquatic flora and fauna with over nine million fish being killed offshore because of the storm, the dolphins have been additionally closely impacted with many being injured withinside the typhoon, however, maximum have been rescued.

How clean water can be formed after ecological disturbance?

The storm additionally prompted freshwater overflood, it despatched big quantities of freshwater into coastal bays and estuaries which shifted the stability among salt water and clean water.

Hence concluded that ecological disturbances can cause cyclones.

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HELP ME FAST pleaseeee thanks

Answers

Answer:

you cant read it

Explanation:

I’m pretty sure it’s transparent

explain how can environmental conditions and individual choices can influence the expression of an organism's inherited traits

Answers

Answer:

"Environmental conditions and individual choices can influence the expression of an organism's inherited traits." It means that if you go out in the sun and lie down, then your skin would get darker

Explanation:

what is the function of gland in stomach?​

Answers

Answer:

Digestive glands play a role in producing digestive enzymes. Enzymes produced by the digestive gland are needed to assist the digestion of the food, making it easier to absorb the body.

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Speech
Read It!
#1
Which is an example of
an organelle?
Read It!
#2
Which is an example of
something where cells
are working together to
perform a function?
.
ent
A. glucose
B. carbohydrate
C. protein
D. mitochondria
X
A. Energy from the Sun heats the
Earth
B. Tissue in the stomach
C. A large pane of glass for
protection
D. The top of a table holds plates
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Read It!
#3
Why are there not large.
single-celled organisms?
Read It!
#4
According the ptsage,
why is it important that we
study cells?
edia
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B.
Their cel wals are too small to grow
Cells do not function when they get too
large
There are not enough elements to grow
Cels do not like light.
C
D
A. So that we can improve our
technology
B. To learn about our ancestry
C. To learn about evolution
D. To have a better understanding of
life
OkScience.com
Page
1

Answers

Answer:

God loves u

Explanation:

read the bible pray everyday

The process by which organisms obtain energy from inorganic compounds instead of from light is ______


Answers

Answer:

Chemo-synthesis

Explanation:

Chemo-synthesis occurs in bacteria and other organisms and involves the use of energy released by inorganic chemical reactions to produce food in the absence of sunlight.

8. Describe two ways that hormone imbalances can cause reproductive problems in humans.

Answers

Answer: Reproductive problems from imbalanced hormones can occur when abnormal levels of estrogen and androgen sex hormones develop, and can cause infertility and other health issues.

If the producers in a food chain contains 250 kcal of energy, how
much energy will be present in the primary consumers? *

Answers

The answer to this answer is 125 kcal

ANSWERR ASAPP FOR BRAINLIEST

Answers

The answer to the question is C.

Answer:

The answer is C.

Explanation:

Negative acceleration would mean downhill, therefore the correct answer would be c

Why is the cell cycle so tightly controlled in multicellular organisms?

Answers

Answer:

All multicellular organisms use cell division for growth and the maintenance and repair of cells and tissues. Cell division is tightly regulated because the occasional failure of regulation can have life-threatening consequences.

All multicellular organisms use cell division for growth and the maintenance and repair of cells and tissues. Cell division is tightly regulated because the occasional failure of regulation can have life-threatening consequences.

What is cell cycle?

Cell cycle has been as the defined as cycle in which cell produces, grows and divides. The cell cycle has mainly three steps the first one has G1 phase in which the size of the cell increases, S phase synthesis of DNA takes place and the third step has G2 phase in which all cell ready to divide.

Cell has been defined as the base of the life as it has the structural as well as functional unit of life. Cell has been made up of pre existing cells and the cell contain various part cell organelles such as mitochondria, endoplasmic reticulum, ribosomes, golgi appratus, nucleus, and cytoplasm.

Therefore, All multicellular organisms use cell division for growth and the maintenance and repair of cells and tissues. Cell division is tightly regulated because the occasional failure of regulation can have life-threatening consequences.

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Why is the time series useful as a management tool?
A) It estimates the probability of extinction.
B) It estimates the harvested numbers.
C) It monitors a population's age structure.
D) It designates wildlife refuge areas.

Answers

Answer:B

Explanation:

The answer is C if I am wrong tell me.

Help me plssss ASAP

Describe how having a peanut allergy can affect the human body systems. Provide 3 examples and evidence to match your statement.

Answers

It can result in inflammation, watery eyes, and a shut throat.

During the phase called the new moon, _____________ .

A) none of the Moon's face is visible from Earth

B) all of the Moon's face is visible from Earth

C) a sliver of the Moon's face is visible from Earth

Answers

A) None of the Moon’s face is visible from Earth

2.
Describe what happens during interphase. Be sure to include all three parts of interphase.

Answers

Answer:

Interphase is divided into three subphases which are G1 phase, S phase and G2 phase.

Explanation:

During G1 and G2 phases, the cell grows by producing proteins and cytoplasmic organelles. Cell growth and cell differentiation occur. In the S phase, synthesis of DNA occurs. The chromosomes are duplicated and DNA has replicated to form two identical sister chromatids joined together by centromere. During interphase, the chromosomes are not visible but appear as thread-like structures, chromatin. In general. Interphase is the phase where the cell prepares for cell division. It involves synthesis of protein and organelles, growth, replication of DNA, cell differentiation and energy storage.

Chemical barriers to pathogens include
lysozyme in the____and____
in
the stomach.

Answers

Answer:

tears or saliva and mucus

Explanation:

hope this helps

Explanation:

Chemical barriers to pathogens include

lysozyme in the___saliva_and__mucus__

in

the stomach.

Please select the word from the list that best fits the definition

"Visualizes where items are located"

A. Interpersonal
B. Musical
C. Body-Kinesthetic
D. Spatial
E. Linguistic
F. Intrapersonal
G. Logical-Mathematical​

Answers

Answer is D. Spatial

Spatial intelligence is the ability to visualize with the mind’s eye.

What is the name of the molecule that brings the amino acids to the
ribosome (purple blob)?

Answers

Answer:

Transfer RNA, or tRNA, molecules deliver the amino acids to the ribosome and are also involved in decoding the codons on the messenger RNA.

Mitosis results in which of the following?

A. Two cells with different genes.

B. Two cells with identical genes.

C. Four cells with different genes.

D. Four cells with identical genes

Answers

Answer:

The correct answer is B.

Explanation:

Mitosis usually results in two identical daughter cells, whereas meiosis results in four sex cells.

Explain how diffusion restored homeostasis during the dialysis treatment

Answers

Answer:

If the patient's blood is too low in ions, they will diffuse from the dialysis fluid into the blood, restoring the ideal level in the blood. If the patient's blood is too high in ions, the excess ions will diffuse from the blood to the dialysis fluid.

Explanation:

I may be wrong but yeh

If the patient's blood is too low in ions, they will diffuse from the dialysis fluid into the blood, restoring the ideal level in the blood. If the patient's blood is too high in ions, the excess ions will diffuse from the blood to the dialysis fluid.

What do you mean by dialysis?

Dialysis is a procedure to remove waste products and excess fluid from the blood when the kidneys stop working properly. It often involves diverting blood to a machine to be cleaned.

Moreover, hemodialysis is most often done at a special dialysis center. You will have about 3 treatments a week. Treatment takes about 3 to 4 hours each time.

In hemodialysis, the wastes and excess water are removed by using an external filter called a dialyzer, which contains a semipermeable membrane.

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compare and contrast the rock cycle and the carbon cycle

Answers

Answer:

The rock cycle and water cycle overlap with erosion, transporting, and deposition.carbon atoms are used repeatedly on Earth and cycled between the atmosphere, hydrosphere, biosphere, and lithosphere through processes

Explanation:

The rock cycle and the carbon cycle are two different types of natural cycles that occur on earth. The difference include components, processes, time scale, human impact, and environmental implications.

What is the difference between rock cycle and carbon cycle?

The rock cycle is a continuous process that occurs over millions of years, during which rocks are transformed from one type to another. There are three major types of rocks: igneous, sedimentary, and metamorphic. Each type of rock is formed through a different process.

The carbon cycle is the process by which carbon is cycled between the atmosphere, oceans, and living organisms. Carbon is essential for life, and is found in all living organisms. The carbon cycle is driven by photosynthesis, respiration, and decomposition.

During photosynthesis, plants absorb carbon dioxide from the atmosphere and use it to build organic molecules. These organic molecules are then consumed by other organisms, and carbon is transferred up the food chain.

When organisms die, their bodies are decomposed by bacteria and fungi, which release carbon dioxide back into the atmosphere.

In addition, carbon is stored in fossil fuels such as coal, oil, and natural gas, which are formed from the remains of ancient plants and animals. When these fuels are burned, carbon is released into the atmosphere, contributing to global warming.

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4. How does the microscope contribute to your viewing of the Daphnia?

A) It decreases the viewing size of the sample

B) It does not change the viewing size of the sample

C) It increases the viewing size of the sample

Answers

Answer:

it increases the viewing size.

Explanation:

Function of microscope is used to enlarge organisms for better look

C : it increases the viewing size of the sample -

Write about examples of how science has impacted your life.

Answers

Answer:

Science has made it much easier to understand the world around us, Work, improve technology, and planning ahead.

Explanation:

Scientific knowledge can improve the quality of life at many different levels—from the routine workings of our everyday lives to global issues. Science informs public policy and personal decisions on energy, conservation, agriculture, health, transportation, communication, defense, economics, leisure, and exploration. When scientific discoveries are combined with technological developments, they have resulted in the machines which are making our lives easy to manage. From household appliances to cars and planes, all are the result of science. Science has made it possible for farmers to save their crops from pests and other problems.

What is cancer?
Group of answer choices

Division of sex cells

A disease that attaches to your cells

A disease similar to a virus that can infect any cell of the body

Uncontrolled mitosis of cells

Answers

Answer:

C

Explanation:

*
contains the DNA and controls all of the cell's activities
Please help me !

Answers

Answer:

Nucleus

Explanation:

Nucleus contains the DNA and controls all of the cell's activities

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PLEASE HELP ASAPP ILL GIVE BRAINLIEST!!!

Answers

Answer:

I would expect the mass to be less

A couple has three children, two without sickle cell anemia and one with sickle cell anemia. The mother has sickle cell anemia as well, while the father does not.
Make and defend a claim as to how this couple could have children with and without sickle cell anemia.

Answers

Answer:

Explanation:

The sickle cell allele is recessive. Hence, in order for any child of the couple to have sickle cell anemia, such a child will have to inherit an affected allele each from the two parents. This means that both the father and the mother must have affected alleles in their genotypes. In other words, two sickle cell alleles are required for the abnormality to manifest.

Let us assume that the sickle cell allele is represented by S and the normal allele is represented by A.

Now, it is established that the mother has sickle cell anemia, her genotype would be SS. The father does not have sickle cell, his genotype can either be AA or AS.

Assuming the genotype of the father is AA:

          SS   x   AA

      AS   AS   AS   AS

All the children would be normal in this case.

Assuming that the genotype of the father is AS

           SS    x    AS

      AS   SS   AS   SS

50% of the children would have sickle cell while the remaining 50% would be normal.

Therefore, in order to produce children with sickle cell, the father has to be AS, otherwise, he has to be AA.

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