Which step in a comparative investigation is not included in a descriptive
investigation?
A. Asking questions
B. Collecting data
C. Comparing or contrasting
D. Making observations

Answer:

1-J, 2-G, 3-C, 4-H, 5-B, 6-I, 7-E

8-a biological community of interacting organisms and their physical environment

9-D, 10-F

Biosphere-A

Explanation:

1. Atom/Molecule --> J. smallest part of an element or compound

2. Organ --> G. a group of similar tissues working together like the heart or lungs

3. Population. --> C. a group of one kind of organism living in an area

4. Biome --> H. all the living and nonliving things living in a similar environment such as a desert

5. Cell -->  B. Smallest level at which life exists

6. Organelle --> I. parts of a cell such as the nucleus

7. Community --> E. Several populations of organisms living together

9. Tissue --> D. group of similar cells working together

10. Organism --> F. a living thing that may be unicellular or multicellular

8. Ecosystem --> a biological community of interacting organisms and their physical environment

Biosphere --> A. All living & nonliving things on earth

Meiotic division(s) which reduce(s) the chromosome number is Meiosis I. As a reductional division, meiosis I decreases the amount of chromosomes that each daughter cell inherits.

During meiosis, the number of chromosomes is divided in half.. The number of chromosomes in each daughter cell will be one-half that of the parent cell. Because gametes (sperm, eggs) have half as many chromosomes as diploid (2N) individuals, meiosis is a necessary aspect of the sexual process.  

Meiosis is a two-stage process in which the number of cells doubles but the number of chromosomes does not. Meiosis I is the initial division.  Meiosis II is the second division; unlike mitosis, it does not result in a reduction in the number of chromosomes. The names of the phases are identical to those of mitosis.

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According to the diagram above, the layer where a green, crystalline igneous rock called peridotite is most likely to the found is D.

A rock can simply be defined as the solid minerals of the earth. There are different types of rocks, namely:

So therefore, according to the diagram above, the layer where a green, crystalline igneous rock called peridotite is most likely to the found is D.

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The correct answer is Tract.

The nervous system divides somatosensory experience into stimulus fragments distributed across body parts, reducing it to parallel streams of neural activity. So how does one feel "one" with their body, and how does one recognize an object by touching it? This is possible because the parietal lobe of the cerebral cortex is where somatosensory information converges to provide one a coherent impression of the body and of somatosensory stimuli.

The fundamental structure of the somatosensory system and how somatosensory information is represented and processed in the parietal cortex will be covered in more detail in the first section of this chapter. Clinical evaluations of somatosensory function will make use of this knowledge of the overall structure of the somatosensory pathways. a neuron

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We can all contribute to reducing climate change, and therefore help polar bears and other endangered species. A significant cause of climate change is the emission of polluting gases from burning fossil fuels, such as coal and oil. Fossil fuels are burned when we use electricity or drive our cars, among other things.

Climate change refers to long-term changes in temperature and climate patterns. These changes may be natural, but since the 18th century human activities have been the main cause of climate change, mainly because of the burning of fossil fuels (such as coal, oil and gas), which produce gases that trap heat.

With this information, we can conclude that Everyone can help limit climate change. We can make a difference through the way we get around, the type of energy source we use and the food we eat. Start with these ten actions to help tackle the climate crisis.

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Those actions which are carried out to increase their chances of survival and reproduction are considered as the behavioral adaptation noticed in some people that might act in their favor.

Behavioral adaptation is a type of action that generally animals carry out to increase their own chance of survival as well as the process of the life cycle which makes the health insurance of life of an individual might act in their favor.

The behavior may or may not be learned and passed from one generation to the next which may come from instinctive behavior from the past as it is inherited genetically by the genetic combination acquired from parents.

In order to cope with variations occurring in the environment, some organisms make behavioral adaptations to match the difference.

Any particular action that a plant or animal adapts to survive in an environment is generally a behavioral adaptation whereas it depicts about actions as the word 'behave' stays right there in the name itself and it is considered as a word on which how we act.

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Answer:

c

Explanation:

it moves with the concentration gradient and it is the movement of water. It is a passive transport and it requires no energy.

Molecules composed of a small oligosaccharide covalently linked to a phospholipid are called: Glycolipids

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The time the cook spends flushing out the chemical irritant released by the onions that caused her eyes to water is an example of setup time.

In the earth, onions develop into bulbs. Voles, which enjoy nibbling on roots, tubers, and bulbs, are among the critters that call the underground abode of the onions their home. Onions have a defence system that is intended to shield them from predators as they grow in order to prevent this from happening. When an onion's skin is damaged, it releases enzymes and sulfonic acid. Propanethial S-oxide, an unpleasant gas, is created when these chemicals mix.

Tear gland irritation makes them continuously release tears, regardless of whether or not there is a desire or feeling to cry. Allyl sulphide is one of the chemical substances generated by onions; it is also found in garlic and spring onions.

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Matching the Property of water

Water molecules stick together due to cohesion.

Water molecules adhere to other substances.

High surface tension causes the bonds that keep water molecules together to flex and stretch before breaking.

Water can store a lot of heat before transitioning from a liquid to a gas due to its high heat of vaporization.

Water has a high specific heat, which means it can store a lot of heat without altering its appearance. Cold water seems to be warm water.

Evaporative cooling: Because water can transmit heat, it is employed to assist terrestrial creatures regulate their body temperature.

Ice floats because its crystalline lattice makes it less dense than liquid water.

Many chemicals may dissolve in water and are so transported via the body's water.

Cohesion [Select] Adhesion [Select] a surface with a high surface tension High evaporation temperatures [Select] [Select] a high specific heat [Select] Evaporative cooling Water that is solid is less dense than water that is liquid. The solvent you choose. Water retains a lot of heat without changing its appearance; cold water seems to be warm. Quick boiling occurs when using low heat. Since water can transfer heat, it is utilized to help keep terrestrial species' bodies at a constant temperature. Bonds keeping water molecules together will flex and stretch before breaking. Water molecules bind to other things. In the winter, London is colder than Chicago. Heat may be stored in water for a long time before it turns into a gas. Ice is produced by the crystalline matrix of ice.

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Explanation:

actually virus are both living and non living organisms they are living when they are in a living cell and non living when they are on there own they are in-between the borders of living and non living things

Answer:

Viruses are yet not considered as living. They serve as the border between living and non living.

Explanation:

I would make an effort to explain to my roommate, Miguel that ingesting DNP results in the release of calcium reserves from mitochondria and hinders re-uptake, which in turn leads to unopposed muscular contraction and hyperthermia in muscle cells that have free intracellular calcium.

2,4-Dinitrophenol (DNP) C₆H₄N₂O₅ is a weight loss supplement. However, because of its lethal side effects, it was considered to be unsafe for human consumption and was banned by the FDA in 1938.

DNP causes a rise in metabolic rate and heat by decoupling oxidative phosphorylation and limiting ATP synthesis. DNP inhibits the uptake of phosphorus into the mitochondria. Additionally, DNP makes it possible for hydrogen ions to sneak past the mitochondrial membrane and avoid ATP synthase. As cells try to produce more ATP, the potential energy that is typically retained during ATP creation is released as heat, leading to hyperthermia and increased calorie consumption through more carbohydrate and fat breakdown. It was because of this quality that it gained popularity as a weight-loss medicine in the 1930s and remains so today.

DNP stimulates the release of calcium reserves from mitochondria and hinders re-uptake; this liberated intracellular calcium in muscle cells causes unopposed muscular contraction and hyperthermia.

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Answer:

Taking place in different periods of time. Taking place every now and the, or taking place occasionally.

Explanation:

The number of dead microbial cells outnumbers the number of live cells during the stationary phase of microbial development.

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The part would you adjust in order to examine a specimen under light microscope with two eyes at the same time is ocular lenses at an interpupillary distance

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Mast cells help regulate other types of immune responses as well as how the immune system reacts to certain germs and parasites. They include substances including growth factors, cytokines, heparin, and histamine.

Macrophages play a crucial role in the upkeep and defence of host tissues by detecting and swallowing foreign particles and, when necessary, triggering an inflammatory reaction. Almost all tissues they migrate to and circulate through as they search for infections or remove dead cells

Mast cells are linked to the development of tumours, and angiogenesis and cancer cell motility have been seen to be induced by macrophages. Macrophages generate inflammatory cytokines similar to mast cells.

At the location of the cut, they produce substances that widen blood vessels.

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One step is the minimum required to separate nuclei from ribosomes in a cell lysate by centrifugation.

During experiments dealing with molecular biology, centrifugation is essential to promote the separation of biological molecules.

In these experiments, centrifugation is done in a machine, where the scientist can choose the speed at which the centrifugation will be performed. Depending on the speed chosen and the materials centrifuged, only one centrifuge step will be necessary.

An example of this can be seen in centrifugation to separate nuclei from ribosomes in a cellular lysate, where only one step is needed.

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Molecules composed of a small oligosaccharide covalently linked to a phospholipid are called glycolipids.

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A specialized protein in saliva breaks up starch molecules in food into smaller chains of simple sugars. In this reaction, specialized protein is the enzyme, starch molecules are the substrate and the product is the smaller chains of simple sugars.

In the field of science, we can describe enzymes are a kind of proteins that lower the activation energy of a reaction, hence speeding up a reaction. In the reaction above, specialized proteins that help in breaking down starch molecules are the enzyme.

Each enzyme has an active site into which only a specific substrate can fit and get catalyzed. In the scenario above, starch molecules are the substrates as they are the ones being catalyzed.

The products are the resulting substances that are produced after catalysis. In the case above, as smaller chains of simple sugars are the ending results, hence they are the products.

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Due to the ozone layer's increasing absorption of UV radiation, the temperature in the stratosphere typically rises as height does.

The stratosphere, the second layer of the Earth's atmosphere, has layers, one of which being the ozone layer. Our globe is covered in a layer of shielding gases known as the stratosphere.

Because it is stratified, or layered, the stratosphere gets its name. The stratosphere warms up as elevation rises. Because the ozone gases in the upper layers absorb strong UV energy from the sun, the stratosphere gets warmer as it gets higher.

Life on Earth benefits from the ozone layer's protective role.

The radiation known as ultraviolet radiation, or UV light, which may damage DNA molecules in plants and animals, can penetrate organisms' protective layers like the skin, is well-trapped by ozone. UVB and UVA are the two main categories of ultraviolet light.

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The Anatomical position can be referred to the specific body orientation used when describing an individual’s anatomy.

The anatomical position of the human body consists of the body standing upright and facing forward with the legs parallel to one another.

The anatomical position is very important because it provides a clear and consistent way of describing human anatomy and physiology.

For example, the arms are lateral to the chest, and the ears are lateral to the head.

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Scientists originally hypothesized that proteolytic enzymes such as pepsin and trypsin are secreted in inactive form because these proteolytic enzymes, in active form, would digest the very tissues that synthesize them.

Pepsin is a proteolytic enzyme that is made by the chief cells of the stomach. Trypsin is another proteolytic enzyme that is formed by the pancreas and brought to the small intestine at the time of digestion.

The chief cells form pepsin originally as pepsinogen. The pancreas secretes trypsin originally as trypsinogen. As there are various proteins that are present in the chief cells as well as the pancreas, hence making of these enzymes would mean that they will break down the other enzymes and proteins of the very own cells that created them.

Hence, pepsin and trypsin are formed in their inactive forms and are only converted into their active forms at the time of digestion.

Although a part of your question is missing, you might be referring to this question:

Why did scientists originally hypothesize that proteolytic enzymes such as pepsin and trypsin are secreted in inactive form?

A) These proteolytic enzymes, in active form, would digest the very tissues that synthesize them.

B) They identified the hormone that activates pepsin and trypsin.

C) The stomach is too acidic to maintain these enzymes in their active form.

D) Pepsin and trypsin have never been isolated in their fully activated form.

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Differential media contains only the minimum nutrients requirements for microbial growth is the false Statement.

The four stages of microbial growth are as follows:

A growth curve made up of four seperate phases of growth- the lag phase , the exponential or log phase ,the stationary phase and the death or decline phase has been found emerge from bacteria growing in a closed system or batch culture ( no food provided ,no wastes removed) .

The statement given the question is false statement. For growth and nutrition of bacteria ,the minimum nutritional requirements are water, a source of carbon,a source of nitrogen and  some inorganic salts.

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Analytes migrate across electrolyte solutions using Capillary electrophoresis procedures while being influenced by an electric field. Analytes can be divided by non-covalent interactions into different phases or according to ionic mobility.

Gradients in conductivity and pH can also be used to concentrate or "focus" analytes.

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Flowering plants reproduce sexually through a process called pollination. The flowers contain male sex organs called stamens and female sex organs called pistils. The anther is the part of the stamen that contains pollen. This pollen needs to be moved to a part of the p

Scientists originally hypothesize that proteolytic enzymes such as pepsin and trypsin are secreted in an inactive form because these proteolytic enzymes, in active form, would digest the very tissues that synthesize them.

Both pepsin and trypsin are proteolytic enzymes, which means that they are involved in the breakdown of proteins.

Pepsinogen is the inactive form of pepsin. The chief cells of the stomach originally secrete pepsinogen which is then converted into pepsin only when the food arrives in the stomach. Trypsinogen is the inactive form of trypsin, that is secreted by the pancreas. The trypsinogen is converted into trypsin only when it has been transported to the small intestine and when the process of digestion is occurring.

Both these enzymes are secreted in inactive forms because if secreted in their active forms they would digest all the other important proteins of the very cells that are making them. Hence, scientists originally hypothesized that proteolytic enzymes such as pepsin and trypsin are secreted in an inactive form.

Although a part of your question is missing, you might be referring to this question:

Why did scientists originally hypothesize that proteolytic enzymes such as pepsin and trypsin are secreted in inactive form?

A) These proteolytic enzymes, in active form, would digest the very tissues that synthesize them.

B) They identified the hormone that activates pepsin and trypsin.

C) The stomach is too acidic to maintain these enzymes in their active form.

D) Pepsin and trypsin have never been isolated in their fully activated form.

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Cell organelle that converts the chemical energy stored in food into compounds that are more convenient for the cell to use is Mitochondria

It converts the chemical energy stored in food into compounds that are more convenient for the cell to use.

Mitochondria are the sites of metabolic reactions. They are the sites of the Krebs cycle and oxidative phosphorylation . The mitochondria receive the products from glycolysis, pyruvate, and NADH/FADH2, which are later processed. Oxidative phosphorylation is the process in which  ATP is produced in the cell. Oxidative phosphorylation produces ATP through a chemiosmotic process.

Chloroplasts are the organelles accountable for photosynthesis where carbon dioxide, water, and energy from the Sun are converted into carbohydrates (anabolic process). The endoplasmic reticulum is the organelle that contain ribosomes which are the protein-making factories of the cell (anabolic process). The golgi apparatus is a main organelle involved in the logistics of processing and packaging of proteins and lipids with most ought to be excreted from the cell.

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Chromosome duplications and deletions frequently result in abnormal phenotypes or inviable gametes. Gene dosage is modified is a major contributor to this phenomenon.

In the field of genetics, we can define gene dosage as the quantitative measure or copies of a particular gene that is present in an organism. Abnormalities in the gene dosage at a particular location can cause severe damage to the resulting phenotype.

Gene dosage can lead to chromosome duplications if the copy number or gene product is more and it can cause deletions if the copy number or gene product is less. Such complications will result in abnormal phenotypes or inviable gametes. For example, in Down's syndrome, the person has a modification of the 21st chromosome as there is one extra 21st chromosome present. This leads to a variety of diseases and defects in the person.

Although a part of your question is missing, you might be referring to this question:

Chromosome duplications and deletions frequently result in abnormal phenotypes or inviable gametes. Which factor is a major contributor to this phenomenon?

a. Recessive diseases are unmasked by additional copies.

b. The genes are found in a novel arrangement.

c. Gene dosage is modified.

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