7. When switching to the 100X lens, what should you use? -

a) The 100X lens should only be used with low light intensity

b) 100X lenses should be used with a few drops of immersion oil to enhance the image

c) When switching to the 100X lens, a wet cloth should be used to clean the lens for clarity

d) The 100X lens should be used in conjunction with a 15X eyepiece only


It’s not D I turned it in like that and I got it wrong :/ please help

The two main drivers of genetic variation are mutations and genetic recombination. They can occur during the process of meiosis.

Meiosis is a process of cell division that occurs in sexually reproducing organisms. In this process, a parent cell divides into four haploid daughter cells that are genetically different from the parent cell and from one another. This is because meiosis involves two rounds of cell division and involves crossing over and random segregation of chromosomes, resulting in genetic variation.

Mutations : Mutation is a change in the DNA sequence that occurs spontaneously during DNA replication. It can occur randomly at any time, although some mutations are more common than others. Mutations can affect gene function and can lead to genetic disorders. They are also an important source of genetic variation in a population.

Genetic recombination : Genetic recombination is the process of shuffling genes between chromosomes. It is a type of genetic variation that occurs during meiosis. During this process, homologous chromosomes pair up and exchange genetic material, creating new combinations of alleles. This is why siblings can have different genetic traits from their parents or from each other.

Hence, two of the main drivers of genetic variation are mutations and genetic recombination. During the process of meiosis, these two events can occur.

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It is important to note that protein casts may not always be present in urine even in the case of a kidney disorder.

Protein casts are formed when there is an excess amount of protein in the urine, which can be a sign of a variety of kidney disorders, including glomerulonephritis, nephrotic syndrome, and lupus nephritis.

The presence of protein casts in the urine indicates that there is a problem with the kidneys' ability to filter and retain protein, leading to the formation of protein casts in the urine. Therefore, their presence usually indicates a disorder.

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All the nerve bundles of the mammalian body system are routed through the spinal cord.

The correct answer choice is option C.

The nerve bundles are those structures within runs from the nervous system throughout all the body parts. They are electrical wires which helps to transmit signals or electrical impulses.

That being said, the spinal cord signals different electrical impulses from the brain to different parts of the body and also from different parts of the body back to the brain.

In conclusion, we now know from the simple explanation above that the nerve cells branches to different parts of the body through the spinal cord.

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Mendel's five-part hypothesis, sometimes referred to as Mendel's principles of inheritance is a scientific explanation for how traits in living things are handed down from one generation to the next. It is mostly based on Mendel's observations and research on pea plants.

The dominance principle: Mendel noticed that although certain qualities (now known as recessive) were not expressed in the offspring, others (now known as dominant) were.

Mendel discovered that distinct features' determining factors now known as genes—separate during the development of reproductive cells (gametes) and reunite during fertilization. This is known as the concept of segregation.

Mendel discovered that the inheritance of one feature has no bearing on the inheritance of another, which is known as the independent assortment principle. Mendel discovered that when breeding true-breeding (homozygous) individuals, certain qualities remain constant while others change, and when breeding hybrid (heterozygous) people, other traits do not.

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Answer:

The student could move the lamp further away from the pondweed, for low light intensity. For high intensity, the student should move them lamp closer to the pondweed.

Explanation:

Hope this helps!

Since the given organisms prepare their own food, hence none of the organisms mentioned are heterotrophs. Thus, the correct answer is Option D.

Heterotrophs are organisms that depend on other species (plants and animals) for food since they are unable to prepare it for themselves. They are dependent on these producers for food, either directly or indirectly.  

The rose and the pine tree, two of the choices given, are both autotrophs since plants can make their own food through photosynthesis. On the other hand, the deep-sea tubeworm is a chemoautotroph, meaning it gets its energy from inorganic substances in its surroundings.

Therefore, the correct answer is Option D.

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Answer:

pulmonar; sistemica; plasma

Explanation:

La circulación pulmonar es responsable de llevar sangre del corazón a los pulmones. En este caso, la sangre rica en dióxido de carbono sale del ventrículo derecho a través de la arteria pulmonar, llega a los pulmones, sufre intercambio de gases y regresa a la aurícula izquierda del corazón a través de las venas pulmonares.

La circulación sistémica es responsable de garantizar que la sangre oxigenada se transporte por todo el cuerpo y que la sangre rica en dióxido de carbono regrese al corazón.

El plasma sanguíneo es una solución acuosa amarillenta que consiste en agua, minerales y proteínas. Su función es transportar estas sustancias por todo el cuerpo. El plasma representa aproximadamente el 55% del volumen sanguíneo.

Answer:

Its the Urinary bladder

Explanation:

A. skeleton

B. epithelial tissue

C. urinary bladder

D. a squamous cell

The correct answer as to which functions at the same organizational level as the kidney in the human excretory system would be the urinary bladder. The correct option would, thus, be C.

There are 4 progressive levels of organization as far as life is concerned. These are:

The cell is the basic unit, tissues are made of 2 or more cells, organs are made from multiple tissues, while systems are formed from numerous organs.

The kidney is at the organ level and so is the urinary bladder. Skeleton is a system made from different organs, epithelia tissues are tissues, while squamous cells exist at the cellular level.

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Answer:lions

Explanation:

Axon . The axon is the long neuronal process that carries nerve impulses away from the soma (cell body) of the nerve cell.

The long neuronal process that generally conducts impulses away from the soma of the nerve cell is called the axon. The axon is a specialized extension of a nerve cell (neuron) that transmits electrical signals, known as action potentials, away from the cell body towards other neurons, muscles, or glands.

The axon arises from a region of the cell body called the axon hillock and is covered by a lipid-rich insulating layer called the myelin sheath. The myelin sheath is formed by specialized cells called oligodendrocytes in the central nervous system and Schwann cells in the peripheral nervous system.

The axon may have branches called axon collaterals that allow for communication with multiple target cells. At the end of the axon, there are small structures called axon terminals or synaptic knobs that form connections, called synapses, with other neurons or target cells.

The length of axons can vary greatly, ranging from microscopic lengths to several feet in larger animals. The diameter of an axon can also influence the speed of impulse transmission, with larger axons typically conducting signals faster.

The axon is the long neuronal process that carries nerve impulses away from the soma (cell body) of the nerve cell. It serves as the primary conducting pathway for transmitting electrical signals to other neurons or target cells. The axon's structure, including the presence of the myelin sheath and axon terminals, allows for efficient and rapid communication within the nervous system.

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NOTE: MODERATORS, KINDLY SCROLL AWAY! THIS IS AN ACADEMIC, BIOLOGICAL USE OF THE CENSORED WORD.

Answer:

Females have two of the same kind of s3x chromosome (XX), and are called the homogametic s3x. Males have two different kinds of s3x chromosomes (XY), and are called the heterogametic s3x.

Explanation:

You can tell the cell was taken by a man and not from a woman because it has XY chromosomes

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- profparis

The given statement is true, the tissue of the capsule in a moss is diploid.

Funaria is moss and it belongs to the dominion Bryophyta. Funaria continues switching among the gametophytic department and sporophytic department phase. The pill and seta belong to the sporophyte which undergoes meiosis to provide spores. In mosses, the dominant level is the haploid generation (the gametophyte). This way that the green, leafy gametophytic tissue is haploid (has handiest one set of chromosomes). Each sporophyte plant consists of a pill, that's the middle of spore formation; a stalk; and a foot that attaches the sporophyte frame to the end of the gametophyte. Eventually, the diploid spores are launched and, upon a hit germination, develop into some other moss plant.

Thus, the given statement is true.

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Canola oil contains many carbon-to-carbon bonds of the type C=C, a double bond, whereas butter contains very few carbon-to-carbon bonds.

Fats, cholesterol, and minerals are all considered Lipids. Lipids have polar carboxyl groups in their hydrophilic region and non-polar hydrocarbon chains in their hydrophobic area. Saturated or unsaturated fatty acids can be lipids.

While unsaturated fatty acids lack the covalent carbon-carbon bond and instead have one or more bonds connecting the hydrocarbon chain, saturated fatty acids have a chain length determined by the number of carbon atoms with a maximal number of hydrogen atoms.

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Answer:

The structure labelled a was marked 10 and structure b was marked 20 how much bigger did these structures make the cells appear?

The term describes the mode of asexual reproduction in which offspring develop from unfertilized eggs D. parthenogenesis.

In this mode of reproduction, females produce eggs that are capable of developing into embryos without fertilization by a male gamete. This type of reproduction is common in insects, reptiles, and some fish species, where the females can produce offspring without mating with a male. Parthenogenesis is an important phenomenon in evolutionary biology as it allows populations to persist even when no males are present. In some cases, parthenogenesis can also lead to genetic diversity through mechanisms such as mutation and gene recombination.

The process of parthenogenesis can occur naturally or can be induced artificially through various techniques such as embryo splitting, oocyte activation, and somatic cell nuclear transfer. Overall, parthenogenesis plays an essential role in the survival and evolution of many species. So therefore the correct answer is D. Parthenogenesis describes the mode of asexual reproduction in which offspring develop from unfertilized eggs

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Answer: C) Long roots and needlelike leaves.

Explanation:

Hi! Plants in the tundra biome adapt with long roots and needlelike leaves. Shallow roots would have difficulty accessing nutrients and water in the frozen soil, and broad leaves would be prone to damage from the harsh winds and cold temperatures.

Missense mutations will have an effect on the protein produced by the gene in which the mutation occurs.

A gene's DNA sequence can be changed in a variety of ways. Gene variants, commonly referred to as mutations, can affect a person's health in a variety of ways, depending on where they occur and if they change the way certain proteins operate. The following are examples of variant types: This kind of variation swaps out one nucleotide, which is a component of DNA, for another. By their impact on the generation of protein from the changed gene, substitution variations can be further categorized.

Missense: A missense variant is a form of substitution when a nucleotide change causes the protein produced from the gene to have a different amino acid in place of one that was originally present. The protein's functionality could be affected by the amino acid alteration.

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Answer:

The current is sent through transformers to increase the voltage to push the power long distances. The electrical charge goes through high-voltage transmission lines that stretch across the country. ... The electricity travels through wires inside the walls to the outlets and switches all over your house.

Explanation:

Homeostasis control in living things is exerted over all of the following except response to stimuli. The correct answer is C.

Homeostasis is the ability of a living organism or cell to maintain a stable internal environment despite changes in external conditions. It involves the regulation of various physiological parameters, such as temperature, pH, fluid balance, moisture level, acidity level, and glucose levels, through feedback mechanisms that help to maintain a balanced and stable state.

This allows the organism or cell to function optimally and respond effectively to environmental challenges or changes. Homeostasis is essential for survival and is maintained by complex physiological and biochemical processes that work in harmony to keep the internal environment within a narrow range of acceptable levels.

However, the response to stimuli, such as sensory input from the environment, is not directly controlled by homeostatic mechanisms but by other physiological processes such as reflexes, sensory perception, and decision making in the brain.

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Answer:

heredity goes to the first one

phenotype at the second one

Explanation:

Answer:

Enzymes production is directed by genes located in chromosomes direct production of these enzymes

Answer:

the correct answer is A :Glucose is broken down into pyruvate

Answer:

If I'm correct, the glucose is broken down into pyruvate and energy.

Explanation:

I hope this helps! ^^

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Answer:

Antarctica Bones

Explanation:

Antarctica Bones Give Evidence of Continental Drift By Philip J. Hilts March 21, 1982 Scientists have found bones of the first land mammal ever discovered in Antarctica, the dramatic and long-sought animal evidence to confirm the theory of continental drift.

The statement "Bound hormones cannot readily leave a blood capillary and get to a target cell" is False.

When hormones are bound to a protein, they cannot cross a cell membrane and do not bind to their receptor, resulting in the hormone being inactive.

Hormones are molecules produced by endocrine glands, and they are involved in regulating and coordinating various physiological processes in the body.

They travel throughout the bloodstream and interact with cells in distant parts of the body via specific receptors on target cells.When hormones are in their unbound form, also known as free hormones, they are active and can readily leave a blood capillary and bind to receptors on a target cell.

Bound hormones are transported through the bloodstream attached to specific transport proteins, which help protect them from being broken down or excreted from the body. When the bound hormone reaches its target cell, it must first detach from the transport protein to become active and bind to the receptor.

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Growing food in ways which minimize water and fertilizer use and protect biodiversity while enhancing farmers' livelihoods is an example of sustainable sourcing.

Sustainable sourcing is the practice of procuring goods and services in a manner that preserves and improves the natural environment, social welfare, and economic well-being of current and future generations. The process of sustainable sourcing ensures that the procurement of products and services is completed in a way that minimizes any negative impact on the environment.

Additionally, sustainable sourcing also seeks to support social and economic development and protect the human rights of all parties involved. The use of sustainable sourcing practices is vital for addressing some of the most pressing environmental and social challenges facing the world today, including deforestation, greenhouse gas emissions, and water scarcity. It is also crucial for ensuring the availability of resources for future generations.

Therefore, sustainable sourcing is a critical component of many companies' corporate social responsibility (CSR) programs.

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Answer:

genetic variation and traits

Answer:

generally yes, bc as silicon is formed, it displaces the carbon. processes are used to improve purity. (: hope it helps! have an awesome day! :D

Explanation:

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