Is the mesosphere temperature high or low and what is the temperature

Answer:

Answer:

Explanation:

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Answer:

hybrid inviability,hybrid sterility

Explanation:

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Natural selection occurs when some of those traits help some individuals survive and reproduce more than others. That causes their genes to become more common in the population over time, and it's the way species evolve to adapt to changes in their environment.

Explanation:

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Answer:  Stem cells produce their exact copies by the process of cloning. It is defined as the deliberate production of genetically identical individuals.

Explanation: Stem cells has the ability to continuously divide to generate exact copies of themselves by a process called self renewal. and has the ability to change into specialized cells in a process called differentiation.

Clones contain identical set of genetic material in the nucleus, compartment that contains the chromosomes of every cell in their bodies.The cells from two clones has same DNA and same genes in their nuclei.

All multicellular plants and animals rely on the stem cells to grow from a single cell into an adult. Stem cells allows our body to build new tissues such as new muscle when we exercise.

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Answer:

Control environment is the most important procedures for getting good results.  

Explanation:

The control environment for an experiment is the essential part for getting good results. In control environment, there is no or less chances of infestation from the external environment which can cause the results of the data more acceptable. So the scientists prefers laboratory for performing experiment as compared to outer environment. So in my opinion for getting better results, the control environment is the most necessary experimental procedure.

Yes, for getting better results I think there is a step that could have been added to the procedure is to follow the international standard procedures for taking the readings by the experimenter.

Answer:

1. Describe at least one part of the experimental procedure that you thought was essential to getting good results. Did you find that certain steps in the procedure had to be followed carefully in order to get consistent results? If you wanted better results, do you think there is a step that could have been added to the procedure?

   - Having a controlled environment (like in the Phet lab) is the most important procedure for getting good results.

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2. Discuss your thoughts on the overall lab design. Did it help you understand the concepts better, or did it raise more questions? Do you think you could have designed a better experiment? If so, explain how and then discuss it with your classmates. Share some of your knowledge with them or learn a little more about the experiment you just did.

   - The overall lab design helped me understand circuits and current so much better. No, the experiment was well-designed and very helpful to my progress through the unit.

Explanation:

a p e x :))

Answer:

osmosis

Explanation:

on edge2020

The movement of water from an area of high water concentration to an area of low water concentration is called as Osmosis. Thus option D is correct.

The process in which solvent molecules pass from a lower concentration based solution to a higher concentration solution through a semipermeable membrane called as osmosis.

It is a passive process as no external energy is needed.

When a living plant cell kept in a sugar or salt solution, water diffuses from the cell sap out through the cell membrane called as ex-osmosis.

The cell causes shrinkage of the protoplasm due to water loss, where the cell undergo a condition called as plasmolysis or necrosis.

When the plasmolysed cell is placed in distilled water, the cell regains it’s turgidity and also the original shape and size by a process called endosmosis.

This condition is called deplasmolysis or cytolysis. Thus option D is correct.

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Answer:

A skeletal muscle called Ligaments connects two bones together by the joint. Those muscles moves the bones

Answer: TGGATCAGC

Explanation:

Homeostasis by definition is the equilibrium among the body systems necessary to survive and function properly. So diet is a very important factor to maintain tain this propper functioning of the organism, which is an important factor of metabolism. On the other hand food posses different levels of nutrients as are compounds, so calculating the necessary intake of micronutrients is quite difficult and each source of food is rich in several components, therefore a well-balanced diet accomplishes the micronutrient intake and add additional elements, whats more the body absorbs better each micro nutrient in the natural element than in a sinthetic manner, sometimes the molecular composition is not absorbed so easily or is not so stable, on other ocation the quatities are superior to the needed one and there are only wasted.

Answer:

hm

Explanation:

Minerals are the building blocks of rocks. They are naturally occurring, inorganic solids that have a crystalline structure and a specific chemical composition. When minerals are combined through geological processes, they can form rocks.

The way in which minerals combine to form rocks depends on a variety of factors, including the chemical composition of the minerals, the temperature and pressure conditions, and the presence of water or other fluids.

For example, in the case of igneous rocks, which are formed from molten magma or lava, minerals crystallize and solidify as the magma or lava cools and hardens. As the magma cools, the minerals that require a higher temperature to form will crystallize first, followed by minerals that require lower temperatures.

In the case of sedimentary rocks, which are formed from the accumulation of sediment over time, minerals can be deposited along with other organic and inorganic materials. As these sediments are buried and compacted, the minerals become cemented together to form a solid rock.

In metamorphic rocks, which are formed from pre-existing rocks that have undergone intense heat and pressure, minerals can undergo a process of recrystallization or rearrangement to form new minerals and a new rock texture.

Overall, the type and arrangement of minerals in a rock can provide important information about the geological history and conditions under which the rock formed.

Answer:

Minerals are usually defined as an inorganic solid substances that are comprised of a specific chemical composition as well as well oriented and preferred internal structure of atoms. Some of the examples of minerals are calcite, quartz, olivine, pyroxene, gold, silver and many more.

There are numerous minerals present in earth, and they combine with one another and give rise to the formation of rocks. These minerals are present randomly in terms of oxides, sulfides, native elements.

Thus, rocks are considered to be the aggregate of minerals which are formed under different condition such as temperature, pressure, rate of cooling, sedimentation and compaction.

Explanation:

Minerals are made out of rocks

Both the eye and the respiratory tract are protected against infections by interferons produced by immune cells. The two antigen presentation techniques match the two types of T cells' various functions in immune system.

The adaptive immune system is made up of lymphocytes, a particular subtype of leukocyte. The two main lymphocyte subtypes, B cells and T cells, are produced by hematopoietic stem cells in the bone marrow. T cells have a role in the cell-mediated immune response, whereas B cells are involved in the humoral immunological response. Helper T cells and regulatory T cells only identify antigens attached to Class II MHC molecules, whereas killer T cells only recognize antigens attached to Class I MHC molecules.

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Answer:After puffing off its outer layers, the star collapses to form a very dense white dwarf. One teaspoon of material from a white dwarf would weigh up to 100 tonnes. Over billions of years, the white dwarf cools and becomes invisible.

Explanation: googel hope it helps

The bone cell of a goat contains 60 chromosomes, so there will be 60 chromosomes in each daughter cell after mitosis, as mitosis is the cell division that will produce daughter cells with the same genetic contents.

The cell divides during mitosis, and the daughter cells formed have the same genetic content as the parents, here, two daughter cells are formed, with the bone cell having genetic content same as original bone cell. Because the duplicated chromosomes are separated equally by the spindle fibers without crossing over or recombination, 60 chromosomes will form that is the same number of chromosomes after mitosis.

Hence, the bone cell of a goat contains 60 chromosomes, so there will be 60 chromosomes in each daughter cell after mitosis, as mitosis is the cell division that will produce daughter cells with the same genetic contents.

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Neurons are electrically excitable cells that generate and transmit electrical signals in the form of action potentials. These action potentials are generated by the movement of ions across the cell membrane, which creates and maintains ion gradients across the membrane.

These ion gradients are critical for normal neuronal function and play a key role in the ability of neurons to generate action potentials.

In neurons that generate many action potentials, the ion gradients across the cell membrane are maintained by the action of ion pumps and channels. Ion pumps, such as the sodium-potassium ATPase pump, actively transport ions across the membrane against their concentration gradients, using energy from ATP hydrolysis.

This helps to restore and maintain the ion gradients across the membrane.

In addition, ion channels in the membrane allow ions to passively flow down their concentration gradients, which helps to maintain the ion gradients.

For example, voltage-gated ion channels are activated by changes in membrane potential, allowing ions to flow across the membrane in response to changes in the electrical activity of the neuron. These channels help to regulate the balance of ions across the membrane, which is critical for the generation and propagation of action potentials.

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The following is the key event that is under the direct influence of growth hormone that begins the process of closure of the epiphyseal plate: Cartilage cells stop dividing. The correct option is B.

The key event that is under the direct influence of growth hormone and begins the process of closure of the epiphyseal plate is the cessation of cartilage cell division.

The epiphyseal plate, also known as the growth plate, is a region of growing tissue located near the ends of long bones in children and adolescents. It is responsible for bone elongation by the process of endochondral ossification, where cartilage is gradually replaced by bone.

Growth hormone plays a crucial role in regulating the growth of bones and the closure of the epiphyseal plate. One of its effects is to stimulate the proliferation of cartilage cells in the epiphyseal plate. However, once the bone reaches its final length, growth hormone signaling causes the cartilage cells to stop dividing.

When cartilage cell division ceases, the epiphyseal plate gradually ossifies and closes. This process is essential for the proper completion of bone growth and the establishment of adult bone structure. The cessation of cartilage cell division is a key event influenced by growth hormone that initiates the closure of the epiphyseal plate and signifies the end of longitudinal bone growth. The correct option is B.

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Answer:

Breathing rate increases to provide the body (exercising muscles) with oxygen at a higher rate. Heart rate increases to deliver the oxygen (and glucose) to the respiring muscles more efficiently

Yes the oil hits vital points in and around the head and face helps relax your body, release tense muscles and calms the mind.

Answer:

Zoology is very relevant to industries.. but I am afraid there are no direct relationships among them. One is a subject and other is for minting money. If you ask relationship between zoologist and industry it would be appropriate. Well zoology as a subject has been providing ideas to generate multiple raw materials and even helping farmers. There is a special branch called as economic zoology. Read a few books on them and you can have more information regarding this.

The number of possible connections among the neurons of the brain is about 500 trillion (B).

Neurons are specialized cells that process and transmit information in the brain. Each neuron is connected to other neurons through synapses, which are the sites of communication between neurons. The number of possible connections between neurons in the brain is incredibly large.

According to estimates, the human brain has about 100 billion neurons, and each neuron can form connections with up to 10,000 other neurons. This means that the total number of possible connections in the brain is about 1 quadrillion (10^15).

However, not all possible connections are formed in the brain, and the actual number of connections is estimated to be around 150 trillion (10^14). Therefore, the correct answer to the question is an option (B) about 500 trillion.

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Answer:

Your body uses water in all its cells, organs, and tissues to help regulate temperature and maintain other bodily functions. Because your body loses water through breathing, sweating, and digestion, it's important to rehydrate by drinking fluids and eating foods that contain water.

Answer:

Water is needed for your digestive track as it digests foods. As water is also needed for each cell to properly function in your body.

Answer:

stored form of carbohydrates in animal

Answer:

c

Explanation:

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A substance is a single component that can't be separated (option C).

A substance in chemistry is a chemical substance is a form of matter having constant chemical composition and characteristic properties.

Every pure element and compound is a substance. Iron is an element and hence is also a substance. Methane is a compound and hence is also a substance.

According to this question, a substance refers to a single component that cannot be separated using chemical means e.g. elements, compounds.

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There are two theorys for the formation of galaxies, the theory of accretion that blobs of stars came together to form galaxies, and the collapse theory that says that galaxies are formed by the collapse of an enormous gas cloud. While collide theory says that large galaxies absorbs smaller galaxies, being more ralated to galaxies destruction than creation. Therefore, the alternative A. collapse theory is the correct one as a definition of galaxies formation.

Answer:

1. phospholipid bilayer

2. intergral membrane protein

3. carbohydrates

4. hydrophilic head

5. hydrophobic tail

6. cholesterol

7. protein channel (transport protein)

8. pore

1. phospholipid bilayer, 2. integral membrane protein, 3. carbohydrates attach to protein,  4. hydrophilic head, 5. hydrophobic tail, 6. cholesterol, 7. protein channel (transport protein), 8. pore in the channel.

All cells include a membrane that divides the inside from the external environment. This membrane is known as the cell membrane or the plasma membrane.

A lipid bilayer that is semipermeable makes up the cell membrane, the cell membrane controls the movement of materials into and out of the cell.

Lipids (such as phospholipids and cholesterol), proteins, and carbohydrate groups that are joined to some of the lipids and proteins make up the plasma membrane.

Therefore, a gate that allows waste items to exit the cell and to be transported into it, as well as a barrier keeping the cell's components within and undesired substances outside.

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Answer:

One severe weather event that occurred in the past 30 years was Hurricane Katrina, which hit the Gulf Coast of the United States in August of 2005. It was caused by warm sea surface temperatures, low wind shear, and atmospheric disturbances. The hurricane had a devastating impact as it caused widespread flooding and extensive damage to infrastructure and homes. The immediate impacts included lack of access to basic necessities such as food, water, and medical care.  Many people experienced power outages which led to spoiled food and stoves that did not work. The long-term impacts included loss of wetlands and damage to the local economy, with some estimates putting the total cost of the storm at over $100 billion. I do believe humans are the main cause of global warming, and I contribute to it by using gas to fuel my car and using oil to heat my home. I believe that the U.S. government has a responsibility to address global warming and climate change as it has the potential to cause significant environmental, economic, and social impacts. It is imperative that policies that reduce greenhouse gas emissions and promote the use of renewable energy sources are enforced to help mitigate the effects of global warming.

Answer:

2,3,4,6,7 absolutely. 1 no since bacteria is alive and is single celled, 5 no because an example of snakes don't develop, 8, some don't maintain it.

Answer:

__X_Are made of cells and have an organized structure.

__X_Reproduce and pass their genes(traits, characteristics) to offspring.

_X__Metabolize and obtain energy needed for food(light for plants).

___Grow and become larger.

_X__Develop and become specialized(an example is a human going from being carried to crawling, toddling, and then walking).

_X__Over long periods of living, things evolve in response to their environment.

__X_Respond to their environment.

_X__Maintain homeostasis.

Explanation:

I hope this is the answer you are looking for and I hope this helps!

A variation in gene function that does not involve a change in dna sequence but can be inherited is an epigenetic.

The field of epigenetics is concerned with heritable phenotypic changes that do not result from changes in the DNA sequence. Epigenetics, which derives its name from the Greek prefix epi-, refers to traits that are "on top of" or "in addition to" the conventional genetic basis for heredity. However, the term can also be used to describe any heritable phenotypic change. Epigenetics is most frequently associated with alterations that impact gene activity and expression. These modifications to cellular and physiological phenotypic features may be the result of external or environmental influences or be a normal component of development.

The phrase also refers to the modifications made to the genome that are relevant from a functional standpoint but do not affect the nucleotide sequence.

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Answer:

Maintain homeostasis.

Explanation:

Homeostasis is the ability to maintain a stable internal state. All organisms need to maintain homeostasis and must regulate their internal environment to process energy and stay alive. Rubbing your arms and shivering is your body's natural response to getting colder and trying to warm up. The students body is responding to the cold environment in order to maintain homeostasis - in this case the proper body temperature of 98.6°F or 37°C.

Even if all the cells have the same DNA they biochemical function are different, that's because differents sets of genes must be turned on and off in each cell type by the action of enzymes and other molecules. Each cell have the same 20,000 or so genes but they are biochemically selected by the action of molecules as hormones and chemical signaling. Therefore, different cells use different parts of the DNA code as directions.