Answer:
Explanation:
In the process of differentiation the stem cells develop different sub-cellular structures to turn into the different types of cells - specialisation. The specialised cells can now carry out their important specific functions - essential for the efficient and healthy viability of any organism.
Cell differentiation is the process in which a cell develops new sub-cellular structures.
What is cell differentiation?It is a biological process in which cells in an entity acquire specialized roles and switch from one cell type to another.During human development, a fertilized egg differentiates into other specialized cells found in the body, such as muscle, neurons, etc. Stem cells are undifferentiated cells. These stem cells can be found in both embryos and adults.What is the purpose of cell differentiation?A single cell gives rise to all cells in multicellular organisms. Cell differentiation is how cells acquire their specific phenotype and functionality at maturity. Cell differentiation results in various cell types that perform essential functions.Why is cell differentiation significant?Occurs when a single cell develops into various tissues and organs.It aids in forming an organism from a single cell zygote.Thus, we can conclude that cell differentiation leads to a cell developing a new sub-cellular structure.
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What is the function of the hormone progesterone?
Answer:
Progesterone, hormone secreted by the female reproductive system that functions mainly to regulate the condition of the inner lining (endometrium) of the uterus. Progesterone is produced by the ovaries, placenta, and adrenal glands
Explanation:
A boxer has been jumping rope for an hour. His leg muscles are burning and
he feels weak. Which substance is the most likely
cause of the burning he
feels in his muscles?
Answer:
anaerobic respiration takes place when you demand your muscles to do vigorous work. normally, aerobic respiration takes place but when energy is needed immediately, anaerobic respiration takes place. during anaerobic respiration,the body produces lactic acid, which leads to the burning sensation. your lungs deliver oxygen to the muscles much slower than the rate you need, since you're putting your muscles through an extensive exercise, and this leads to muscle fatigue.
Prokaryotes and eukaryotes are similar in all of these aspects except
Answer:
The presence of DNA
Explanation:
Prokaryotes have a DNA strand (chromosome which looks a bit like a shoe lace )
Eukaryotes have their DNA stored in a nucleus
:)
A Lewis Dot Structure shows only valence electrons.
A. True
B. False
Answer:
A. True
Explanation:
Also, if you've ever read Romeo and Juliet, please help me in my questions tab! I only need a general answer, and I'll give brainliest.
Answer:
A. True
Explanation:
Yes, a Lewis Dot Structure shows only valence electrons.
What effect do biological washing powders have on the skin?
Answer:
Biological washing powder and liquids contain enzymes. These help to break down fat, grease and proteins to get clothes clean. While enzymes are great for getting rid of stains, they can damage wool, silk and other materials. Many people also find that they aggravate eczema and other sensitive skin conditions.
Explanation:
Answer:
The hysteria surrounding biological detergents in the UK led to claims that it can lead to or exacerbate such conditions as “erythema, pruritus and eczema.” Despite this, the review finds no evidence of any harmful effects to skin from bio washing powders and detergents
Maintaining a healthy lifestyle though diet and exercise is important
1. The role of bacteria in the carbon cycle is _________________
(a) breakdown of organic compounds (b) respiration
(c) absorption of nitrogen compounds (d) photosynthesis
Answer:
breakdown of organic compounds
Explanation:
Bacteria are responsible for maintaining the conditions of life as the earth by virtue of their powers of decomposition of plant and animal bodies by which the limited supply by C02 available for photosynthesis is replenished. Thus, they act as decomposers in the carbon cycle.
Which of the following discoveries were the result of Erwin Chargaff's experiments?
Answer:
A
Explanation:
The four bases found in DNA are adenine, thymine, cytosine and guanine.
Which muscle is highlighted below?
A. Obliques
B. Biceps brachii
C. Rectus abdominus
D. Latissimus dorsi
Answer:
A. Obliques
Explanation:
Those are oblique muscles. Biceps brachii are in your upper arm, rectus abdominis are your abs, latissimus dorsi is in your upper back (very big muscle)
Answer: obliques
Explanation:
took the quiz
(trust me ignore the comments on the other answer)
Entre las células, aquellas que presentan cloroplastos con clorofila pueden ser catalogadas como...… A) ...Heterótrofas B) ...Carnívoras C) ...Autótrofas D) ...Herbívoras
Respuesta:
La respuesta correcta es: C) Autótrofas.
Explicación:
La clorofila es un pigmento verde que se encuentra en las cianobacterias y en células vegetales, dándoles a las plantas y algas su característico color. Se encuentra dentro de los cloroplastos.
La clorofila es una molécula de muchísima importancia para llevar a cabo la fotosíntesis, un proceso clave en la vida de las plantas y cianobacterias, ya que es la forma en la que obtienen los nutrientes que requieren para su supervivencia. El hecho de realizar fotosíntesis es lo que convierte a estos seres vivos en autótrofos, lo que significa que elaboran su propio alimento orgánico a partir de sustancias inorgánicas.
Which level of an energy pyramid is most likely to have the highest number
of organisms?
Answer:
Number of Organisms at the level of producers (First level) is more and hence the availability of energy also will be more at the level of producers. Amount of energy available decreases as we you move from the level of producers to the top carnivores.
Explanation:
First-level producers have more organisms, hence their energy availability is greater. From producers to top predators, energy drops.
What is an energy pyramid?An ecological pyramid is a graphical depiction that is intended to show the biomass or bioproductivity at each trophic level in a particular ecosystem. It does this by inverting the order of the trophic levels.
Food webs are frequently shown as energy pyramids in order to more clearly illustrate how energy moves through ecosystems. Beginning with primary producers at the base of the pyramid, each step of the pyramid represents a different level of the trophic hierarchy. The size of each step is proportional to the amount of energy that passes through that particular trophic level.
The energy pyramid depicts a food chain with four tiers, beginning with producers and ending with carnivores. As a result of the significant amount of energy that is lost along food chains, the energy pyramid, also known as the food chain, typically only has four or five trophic levels.
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Which of the following are not marsupials? a. kangaroos. b. koalas. Opossums. d echidnas. Please select the best answer from the choices provided?
Answer:
echidnas
Explanation:
echidnas is not marsupials because it is a spiny insectivorous egg- laying mammal with a long snout and claws , native to Australia and New Guinea.Genetic evidence supports the idea that all organisms are related. This is because:
A) Some organisms have a DNA and some do not
B) Each organism has DNA made from different molecules
C) Each organism on Earth has DNA made from the same nitrogen bases in different sequences
D) Every organism on Earth has the same nitrogen bases in their DNA
can you tell me about the respiratory system in more detail?
The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs, and blood vessels. The muscles that power your lungs are also part of the respiratory system. These parts work together to move oxygen throughout the body and clean out waste gases like carbon dioxide.
In translation, which of these is responsible for forming a peptide bond? Choose the correct answer.
DNA
tRNA
nucleus
ribosome
lizard is a poikilothermic animal why
Answer:
Lizard is a poikilothermic animal because lizards are those animals that do not require a fixed body temperature, their temperatures can fluctuate with little to no adverse effects to their overall health.
Explanation:
Reptiles are cold-blooded, or ectothermic, animals. This means that they cannot produce heat in their own bodies, and have to rely on their surroundings to keep warm. By moving in and out of sunlight, reptiles can keep their body temperature at a steady level throughout the day.
SERE
Explain how using non-local resources has affected the United States both environmentally and economically.
Answer: Possible economic consequences of using non-local resources include increased costs of resources, loss of jobs, increased security risks, and a trade deficit.
Explanation:
Hope it helps you if not sorry
Sample Answer:
Possible environmental consequences of using non-local resources include the risk of oil spills as oil is transported over waterways, increased air pollution from water and land transportation of resources, and habitat loss that comes from pipeline construction and other infrastructures. Possible economic consequences of using non-local resources include increased costs of resources, loss of jobs, increased security risks, and a trade deficit.
Explanation:
What did the countries that signed the Kyoto Protocol agree to do?
O A. Stop using CFCs
O B. Stop depleting the ozone layer
O c. Reduce greenhouse gas emissions
O D. Ban CO2 use
Answer:
C
Explanation:
The countries that signed the Kyoto Protocol agreed to reduce greenhouse gas emissions (C) particularly carbon dioxide emissions, in an effort to combat climate change.
What is Kyoto protocol?The Kyoto Protocol is an international treaty under the United Nations Framework Convention on Climate Change that was adopted in 1997 in Kyoto, Japan (UNFCCC). The treaty seeks to address the issue of global climate change by establishing targets for reducing greenhouse gas emissions, specifically carbon dioxide emissions, from industrialized countries.
According to the Kyoto Protocol, developed countries must reduce their emissions by an average of 5.2% below 1990 levels by 2012. The protocol has been ratified by 192 countries, and signatories have implemented a variety of policies and strategies to meet their emissions reduction targets, including increased energy efficiency, increased use of renewable energy sources, and the implementation of emissions trading systems. The Kyoto Protocol is a significant step forward in terms of international cooperation and action on the critical issue of climate change.
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WILL MARK BRAINLIEST
Answer:
the answer is 7
Explanation:
Im pretty sure it's 7
which of the following can lead to an increase of squirrels in a park
A.increased emigration
B.increased immigration
C.a large number of predators
D.high competition for food
Answer:
Increased immigration.
Explanation:
Immigration = moving TO and area
The half-life of a material increases with the amount of material present.
Please select the best answer from the choices provided
OT
OF
Answer:
t
Explanation:
.......
what group from the food pyramid contains large amounts for making cell membranes
The group containing proteins and lipids from the food pyramid contains large amounts for making cell membranes.
plant a is placed in a room by the window and plant b is placed on the open field. assuming all other factors remain constant (same amount of carbon dioxide and water), which plant will have a higher rate of photosynthesis? why? explain your answer.
Answer:
plant B
Explanation:
This is because plant B is exposed to more sunlight which is essential in photosynthesis.
so the chlorophyll is able to trap more sunlight. which will make it have a higher rate of photosynthesis.
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Which statement describes how osmosis is a significant part of sexual reproduction
Answer:
k
Explanation:
what animal has the longest lifespan?
Answer:
Ans.The longest living mammal is the bowhead whale, which can live up to 200 years. Also known as the Arctic whale, this animal is big, and lives in cold waters so its metabolism is slow. The record age for bowhead is 211 years.
Some endoliths have lifespan as long as 10000years.
Process occurs in the
mitochondrion. Produces CO2
Athletes require energy to move their body. What biomolecules directly supplies your muscles with quick energy, or ATP, when broken down?
Creatine phosphate directly supplies muscles with quick energy, or ATP, when broken down.
Creatine phosphate is a phosphorylated creatine molecule. Muscles use stored chemical energy from the food we eat and convert it to heat and kinetic energy. Adenosine triphosphate is the source of energy used to power the movement of contraction in working muscles. However, ATP is not stored in large amounts in cells. So once muscle contraction begins, the process of making more ATP starts quickly. The muscle has three biochemical systems to produce more ATP for muscle contraction. One such biochemical system utilizes creatine phosphate. Muscles have a little ATP in them that they can use immediately but it does not last long. So, all muscle cells have a high-energy compound called creatinine phosphate which is broken down to form ATP quickly.
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Which unit should students use to express the force of gravity on the mass ot a metal cube? A Millimeter B. Joule C. Gram D Newton
Answer:
D newton
Explanation:
yeah
3. Which of the following is a risk factor for depression?
(2 points)
A sense of hopefulness
A major life change
Never having experienced depression before
Having no relatives with mood disorders
Answer:
major life change
Sometimes its hard to adapt to new life changes that your not happy with
Explanation:
major life change
The function of which organ is most like the cell walls of bacteria
Answer:
The skin
Explanation:
because it protects the internal organs just like the cellwall of the cell
