Answer:
Embryonic stem cells are pluripotent stem cells derived from the inner cell mass of a blastocyst, an early-stage pre-implantation embryo. Human embryos reach the blastocyst stage 4–5 days post fertilization, at which time they consist of 50–150 cells.
Explanation:
Adult Stem Cells
Embryonic Stem Cells
Induced Pluripotent Stem Cells
Pros
Trans differentiate and and reprogramming of these cells is possible but is not well studied
Thought to be less likely to be rejected if used in transplants
Success has already been demonstrated in various clinical applications
Can maintain and grow for 1 year or more in culture
Established protocols for maintenance in culture
ESCs are pluripotent cells that can generate most cell types
By studying ESCs, more can be learned about the process of development
Abundant somatic cells of donor can be used
Issues of histocompatibility with donor/recipient transplants can be avoided
Very useful for drug development and developmental studies
Information learned from the “reprogramming” process may be transferable for in vivo therapies to reprogram damaged or diseased cells/tissues
Cons
Limitations on ASC ability to differentiate are still uncertain; currently thought to be multi or unipotent.
Cannot be grown for long periods of time in culture
Usually a very small number in each tissue making them difficult to find and purify
Currently there is no technology available to generate large quantities of stem cells in culture
Process to generate ESC lines is inefficient
Unsure whether they would be rejected if used in transplants.
Therapies using ESC avenues are largely new and much more research and testing is needed
If used directly from the ESC undifferentiated culture prep for tissue transplants, they can cause tumors (teratomas) or cancer development
Methods for ensured reproducibility and maintenance, as differentiated tissues are not certain.
Viruses are currently used to introduce embryonic genes and has been shown to cause cancers in mouse studies
Why do diseases spread more quickly in crowded conditions? ( I need a short paragraph like 4 sentences) ASAP pls
Answer:
the diseases spread more quickly because there will be alot of people touching and pushing and it will transfer the disease quicker. Many people will coughing too lol
Answer:
Because people might get in touch with each other eveyonen is really close to each other and when people breath someone might have the disease so that way eveyone will breath the same air in thw place they might get the disease
HELP ,ME!!!!!!!!!!!!!! A vegetarian diet is not an option for most people because eating meat is too ingrained in most ____________________ diets.
Answer:
A vegetarian diet is not an option for most people because eating meat is too ingrained in most "option ingrained" diets.
Explanation:
First gets brainliest!
Answer:
(F)
Explanation:
Which of the following cells have DNA?
a. Eukaryote
b. Prokaryote
C.
Animal Cell
d. Plant Cell
e.
Bacteria
Answer:
I think it's all of the above except for Prokaryote.
Question 1
Recency, state forests and parks like Yellowstone National Park which contain varieties of flowering trees and shrubs, have started to erect signs tha
Which argument BEST supports why these signs are being placed in state forests and parks?
A
Flowering tree and shrub ecosystems can never fully recover once humans have adversely affected them because organisms in the
B
Removal of the flowering trees and shrubs will have a direct impact on the ecosystem by increasing the stability
с
Humans can cause damage to the stability of ecosystems by removing the flowering trees and shrubs
Flowering trees and shrubs make the state forest and parks more attractive and increase the revenue for the parks
C2520mate Education inic
Answer: Humans can cause damage to the stability of ecosystems by removing the flowering trees and shrubs
Explanation:
we have the same test
Which particles are located
in the nucleus?
Answer:
[tex]\boxed {\boxed {\sf Protons \ and \ neutrons }}[/tex]
Explanation:
In an atom, there is a dense center known as the nucleus. It is made up of two subatomic particles: protons and neutrons. The protons have a positive charge and the neutrons have no charge, so overall the nucleus is positively charged.
The third subatomic particles, negatively charged electrons, are located around the nucleus in a cloud.
The particles in the nucleus are [tex]\tt protons \ and \ neutrons[/tex].
Assess Your Understanding
Calculate You push on a desk with a force of
120 N to the right. Your friend pushes on the
same desk with a force of 90 N to the left.
What is the net force on the desk?
Enrichment
Directions: Fill in the 12 steps in the decay of U-235 in the diagram below. Begin with U-235 and finish with an
isotope of lead. The particles emitted in each step are listed below. Use the periodic table to find information about
mass numbers, atomic numbers, and chemical symbols. Place the correct symbol in the space corresponding to the
correct mass number and atomic number.
Step
Particle emitted
235
1
Alpha
2
Beta
231
3
Alpha
227
4
Copyright Glencoe McGw-Hill, division of The Mcww.Him Companies,
Alpha
5
Beta
223
6
Alpha
Mass Number
219
7
Alpha
215
8
Alpha
9
Beta
211
10
Alpha
207
11
Beta
12
Stable
203
81 82 83 84 85 86 87 88 89 90 91 92 93
Atomic Number
1. What nucleus is the final product?
Answer:
See explanation and image attached
Explanation:
Decay series refers to the sequence of natural nuclear transformations that occur in the heavy radioactive elements giving rise to a series of elements with different half lives and ending up with a stable nucleus.
The uranium-235 series is pictured in the image attached to this answer as obtained from Wikipedia. All the 12 steps in the decay are shown.
You can use this detail to fill in the table showing all the particles and isotopes involved in the process until the process finishes with an isotope of lead.
Which statement is true of fungi?
A. Some fungi are parasites of plants & animals, causing diseases.
B. Fungi are all single-celled micro-organisms.
C. Fungi are classified in 5 major groups based on their life cycles.
D. Most fungi can be found in water habitats like ponds & lakes.
Answer:
A
Explanation:
B Fungi can be single celled or multi celled so they are not all single celled
C is not true, fungi are categorized into 4 classes
D not true fungi grow everywhere, most are not restricted to water
Siblings have similar traits because they inherit those traits from a common ancestor. How is this similar to some evidence for evolution? Similarities can be seen between siblings in species today, which shows common ancestry. Similarities can be seen among related organisms, which shows common ancestry. There are many differences between siblings in species today, which shows common ancestry. There are many differences between related organisms, which shows common ancestry.
Answer:
Similarities can be seen among related organisms, which shows common ancestry.
Explanation:
edg 2020
Similarities can be seen among related organisms, which shows common ancestry.
Common Ancestry
According to the theory of evolution, all living organisms are here as a result of descent, with modification from a common ancestor.
This means that organisms from the same ancestor will have some features in common, which could be morphological, anatomical, or biochemical.
Thus, the analogy is that of siblings having similar traits because they are from the same parent.
More on evolution can be found here: https://brainly.com/question/2725702
Each statement explains a cause that would prevent a plant not to bear seed in its life cycle except:
The plant may be harvested before it bears any seed.
The plant will grow to full maturity and produce flowers instead.
The plant may die before it reaches maturity.
The mature plant could be affected by a drought preventing seeds from growing.
Answer:
B.The plant will grow to full maturity and produce flowers instead.
What plan can you use to find out how a drought will affect a forest system?
Answer:
you can measure the amount of water the flora take in on a normal day and double that for a storm and subtract the deficit by the regular intake then give the plant life that amount of water for the rest of the drought
Explanation:
ldk just want to be helpful
Which of the following is NOT evidence that species evolved from a common ancestor?
Answer:
there is no following
Explanation:
i cqnt aswer the qwestion
In evolutionary biology, a group of organisms has a common origin when its members share a common ancestor. There is a wealth of evidence from official research that supports the theory of the origin of all living organisms on Earth, from a universal common ancestor.
Charles Darwin was the first to propose the theory of the universal origin of species through the evolutionary process in his work The Origin of Species. The last world common ancestor is the most recent ancestor of all living organisms, and is believed to have lived 3.9 billion years ago.
Learn more about common ancestry in https://brainly.com/question/1358940
Which food has the most carbohydrates?
A. beef
B. carrots
C. celery
D. mushrooms
E spinach
F.peanuts
Answer:
The answer would be peanuts, Which contain a total of 24 g of carbs.
Sorry if i'm wrong! i just went on a mini reasearch spree :3
Where are red and white blood cells produced in the body?
Answer:
They form in bone marrow
All of the following our characteristics of mammals except mammals are not
A. Endothermic
B. Exothermic
C. Vertebrates
D. Heterotrophs.
Answer:
D
Explanation: Because A, B, C don't really talk much about animals. They don't go with the characteristics of mammals.
What is the value of having an international system for classifying and naming organisms?
Answer:
Everyone can understand what animal someone is referring to when they use the international name for the organism.
Explanation:
Since everyone uses different languages around the world, the international system helps such that they can understand each other without any language barriers and they can also quickly know which class the organism belongs to.
Compound X increases the rate of the reaction shown below. CO2 + H2O X → H.CO. Compound X is most likely -
Answer:
an enzyme
Explanation:
In the given case, the compound X is a catalyst.
• Any substance in chemistry, which enhances the rate of a reaction without getting consumed itself is known as the catalyst.
• The naturally occurring catalysts accountable for several essential biochemical reactions are the enzymes.
• The majority of the catalysts used in a chemical reaction are the sulfides, oxides, and halides of metallic elements or of the semimetallic elements like aluminum, boron, and silicon.
Thus, in the given case, the compound X is a catalyst.
To know more about:
https://brainly.com/question/12260131
The chemical formula for a substance called sodium nitrate is
NaNO.. What elements make up sodium nitrare?
Answer:
D. sodium, nitrogen, oxygen
Explanation:
Let's break up NaNO3 into its separate chemical symbols:
Na, N, O
Na is the symbol for sodium
N is the symbol for nitrogen
O is the symbol oxygen
Answer:
D
Explanation:
NaNO3 consists of sodium cation and nitrate anion. The nitrate is NO3 which is made with nitrogen and oxygen.
A commercial classification system such as the one presented in this chapter shows us the ______ in which the grower will sell the product, rather than showing the plant’s biological relationships.
Fill in the blank
Answer:
i have the same question
Explanation:
HELP.......Which best describes a way photosynthesis provides resources to animals?
Answer: I think B.
Explanation: A and D make no sense, and I just learned about photosynthesis and animals or plants need for water cannot decrease.
Photosynthesis increase plant growth, providing places for many animals to live.
What is photosynthesis?Photosynthesis provides resources to animals indirectly, by serving as the source of energy and organic matter for plants. During photosynthesis, plants convert light energy into chemical energy stored in organic molecules like sugars.
These sugars and other organic compounds produced by photosynthesis are then used by plants as a source of energy and building materials. When animals consume plants or other organisms that have consumed plants, they obtain the energy and organic matter stored in these molecules, allowing them to use the resources generated by photosynthesis for their own growth and survival. Therefore, photosynthesis plays a critical role in the food chain and supports the entire ecosystem, including the survival of animals.
Learn more about photosynthesis, here:
https://brainly.com/question/29764662
#SPJ1
the speed at which these reactions happen is called your ?
Answer:
The rate of a reaction is the speed at which a chemical reaction happens. If a reaction has a low rate, that means the molecules combine at a slower speed than a reaction with a high rate.
Answer:
Explanation:
The rate of a reaction is the speed at which a chemical reaction happens. If a reaction has a low rate, that means the molecules combine at a slower speed than a reaction with a high rate
How did whales evolve from land animals ?
Answer:
losing their hind-limbs, growing a flat tail, developing flippers and streamlining their bodies.
Explanation:
look on Google trust me it's faster
An incomplete diagram of the process of photosynthesis is provided. What is the missing component that correctly replaces the question mark to complete the diagram?
Answer:
water
Explanation:
glucose would come after this diagram is complete because photosynthesis converts the sun's energy into sugar.
pls help me with this!!!
Answer:
1. ( c)
2. (A)
3. (b)
Explanation:
prokaryotes have no nuclues and are unicelluar while Eukaryotes are multicellular with nucleus
Organs in the body help maintain homeostasis by distributing nutrients and
removing the
oxygen
energy
tissue
waste
Answer:
Waste
Explanation:
The body need to get rid of all its waste so that it can function properly...aka maintain homeostasis.
Hope this helps :)
ANSWER ASAP!! What types of organisms provide producers with the necessary nutrients?
A. the actions of carnivores
B. the actions of herbivores
C. the actions of decomposers
Answer:
C becuase decomposers provide nutrients
Explanation:
People have built canals and levees to divert water away from its natural flow and prevent floods in residential areas near the Florida Everglades. How have these changes affected the Everglades? О
О Some areas of the Everglades have dried up.
O The population of egrets has increased.
O Farm fertilizer no longer drains into the Everglades.
O Areas of wetland have been filled in for houses.
Answer:
Some areas of the Everglades have dried up.
Explanation:
These changes have caused some areas of the Everglades to have dried up. The everglades were known as the wetlands due to the massive flooding that occurred often but these canals made it so that water would not flow into some of the areas in the Wetlands. Therefore, since water never reached these areas they quickly began drying up and making the ground infertile due to the lack of water which the plants need to survive.
which TWO statements summarize a way that an other-feeder gets food?
A- Sphagnum moss takes in energy from sunlight.
B- Euglenas carry out photosynthesis.
C- Bacteria take in food that has already been digested by a person.
D- Paramecia sweep food into mouth-like structures.
Answer:
A and B
Explanation:
I did it
Answer:
C- Bacteria take in food that has already been digested by a person.
D- Paramecia sweep food into mouth-like structures.
Explanation:
Took the quiz
By which process does yeast produce the carbon dioxide responsible for bread rising?
o cellular respiration
O glycolysis
O dehydration synthesis
O photosynthesis
Answer:
The correct answer is - cellular respiration.
Explanation:
Bread rising is due to the production of carbon dioxide by yeast in both aerobic and anaerobic cellular respiration. If there is a presence of oxygen, yeast performs aerobic respiration and produce carbon dioxide from sugar or other sources of carbohydrates.
In absence of oxygen, yeast performs anaerobic respiration or undergo fermentation to produce carbon dioxide and alcohol as waste products.
Thus, the correct answer is - cellular respiration.