19. Which of the following do NOT involve the movement of molecules from an area of higher
concentration to an area of lower concentration? (1 point)
O osmosis
O facilitated diffusion
O diffusion
O bulk transport

Answer:

hello i think it's The resulting proteins made by the human gene are similar to the proteins made by the mouse gene.

Explanation:

I hope this helps

The human gene when placed into the mice functions properly because the resulting proteins made by the human gene are similar to the proteins made by the mouse gene.

The Granulocyte-macrophage stimulating factor or GM-CSF are glycoproteins secreted by immune cells. These are secreted by the GM-CSF gene. These factors function as cytokines in the body

This factor causes the activation of macrophages in small numbers and produces a rapid immune response against a pathogen. GM-CSF also influence mature cells like neutrophils to enhance their migration. Therefore GM-CSF plays a great role in the activation of the immune system against a pathogen and promotes its defence mechanisms.

Thus, even if the human GM-CSF and mouse GM-CSF vary by up to 60 per cent in their DNA sequence, human GM-CSF functions properly in nice because their resulting proteins are similar to each other.

Therefore correct option is B.

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Answer:  She should Avoid Contact with other people's bodily fluids.

Explanation: Hope that helps! (:

Answer:

She should avoid contact with other peoples bodily fluids

Explanation:

I just did the lesson and this is the correct answer.

Acidity rises and pH falls as carbon dioxide levels rise. The correct option is C.

A change in the characteristics of ocean water known as ocean acidification may be detrimental to plants and animals.

Scientists have noticed that the ocean's acidity is rising as a result of the water's absorption of atmospheric carbon dioxide.

Ocean acidification is the decrease in the ocean's pH level. The average pH of the ocean's surface fell from about 8.25 to 8.14 between 1751 and 2021.

Ocean water is more basic than drinking water because it is resistant to pH fluctuations due to the presence of various weak acids and their corresponding bases, or buffers.

The ocean is regarded as having a pH that is slightly alkaline. Acidity and pH both drop when carbon dioxide levels rise.

Thus, the correct option is C.

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Your question seems incomplete, the missing options are:

When CO2 increases, pH increases and acidity decreases.

When CO2 increases, pH decreases and acidity increases.

When CO2 increases, pH decreases and acidity decreases.

There is no relationship between CO2 and pH

Answer:

The mature animal

Explanation:

The baby would be a clone of the mature animal whose DNA was placed in the unfertilized egg before being implanted into the uterus of a surrogate mother.

The DNA of the egg donor has been removed and replaced with the DNA of the mature animal. The surrogate mother is just a mere carrier and has no biological relationship with the clone. The only organism with biological relationship with the clone would be the one that donates its DNA, which in this case is the mature animal.

Answer:

The statement "Instinct theory holds that aggression is a biologically adaptive trait" is True.

Answer:

The role of nitrogen-fixing bacteria is to supply plants with the vital nutrient that they cannot obtain from the air themselves. Bacteria take it from the air as a gas and release it to the soil, primarily as ammonia.

Explanation: Hope it helps you :))))

Have a good day

However, father's use of barbiturates interacts with a mother's use of marijuana, resulting in missing chromosomes on a child's 8th pair. This statement is not true, which makes option C incorrect.Father's use of crack cocaine causes sperm mutations, such that two sperm are capable of fertilizing a single ovum.

The father's use of alcohol or illegal drugs can affect his sperm, which in turn may lead to chromosomal damage that affects the fetus. This is how a father's habits can affect the health of an unborn child during prenatal development. It is important to note that the consumption of drugs, including alcohol, by expectant fathers poses significant risks to the developing fetus. Maternal alcohol or drug use, such as marijuana or cocaine, has long been known to have detrimental effects on the developing fetus, however, the negative effects of paternal alcohol or drug use on the fetus have only recently come to light. Nicotine intake does not produce DNA changes that are passed to the fetus on chromosome 23. Therefore, option B is incorrect . Barbiturates are a class of drugs that are used to treat a range of conditions, including anxiety and sleep disorders. They can be dangerous when taken improperly, leading to dependence and addiction. However, father's use of barbiturates interacts with a mother's use of marijuana, resulting in missing chromosomes on a child's 8th pair.

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During the follicular phase of the ovarian cycle, estrogen levels increase as the follicle grows and matures.

As the follicle reaches its maximum size, there is a surge of luteinizing hormone (LH) that triggers ovulation. After ovulation, during the luteal phase, the ruptured follicle becomes the corpus luteum, which produces progesterone that prepares the uterus for pregnancy.

If fertilization does not occur, the corpus luteum breaks down, and levels of both estrogen and progesterone decrease, leading to the shedding of the uterine lining and the start of a new cycle.

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The figure below provides evidence that the K-Pg extinction event resulted in a significant decrease in the diversity of marine species.

Explanation: The K-Pg extinction event, also known as the Cretaceous-Paleogene extinction event, was a mass extinction event that occurred approximately 66 million years ago. The figure likely represents data showing the biodiversity of marine species over time, with a focus on the time period surrounding the K-Pg boundary.

Based on the figure, it can be observed that there is a noticeable decline in the diversity of marine species following the K-Pg boundary. This decline suggests a significant loss of species during the extinction event. The decrease in biodiversity can be seen as a drop in the number of different species present in the marine ecosystem.

The figure provides evidence for the impact and magnitude of the K-Pg extinction event on marine life. It indicates that a large number of species were unable to survive the event, resulting in a substantial reduction in marine biodiversity. This information helps us understand the severity and consequences of the K-Pg extinction event and its effects on the Earth's ecosystems.

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Rocky bought 9 mixed cartons of eggs classified by grade 4-8 based on weight and sorted them.

Chicken eggs are classified by grades 4, 5, 6, 7, or 8 based on weight. Mixed cartons can contain eggs from any grade. Rocky purchased nine mixed cartons of chicken eggs for a science project. Rocky then sorted the eggs according to their weight. He may have used an egg scale to measure the weight of each egg.

The egg weight determines its grade. After sorting the eggs, Rocky could have identified how many eggs are in each grade and made calculations based on the eggs' weight. This is because the eggs are graded by weight, which makes it easier to find out how many eggs of each weight are in the carton.

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The problem with replicating the ends of linear DNA lies in the fact that the primers used for both leading and lagging strand synthesis cannot be fully replaced. In the case of lagging strand synthesis, there is no available 3' OH to add the replacement DNA onto, making it impossible to replace the primer.

This results in the generation of Okazaki fragments along both strands, but DNA ligase is inhibited by the tus-ter complexes at the ends of the DNA. In the case of leading strand synthesis, the primer cannot be removed and replaced. Additionally, primase cannot copy telomere DNA. Since replication only initiates at the ends of linear DNA and primers are permanent, the primer at the ends of the DNA cannot be removed, leading to incomplete replication and eventually, the shortening of telomeres. This can contribute to aging and diseases such as cancer.

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A. disruptive selection

[disruptive selection graph is always bimodal or two-peaked]

Answer:

sexual reproduction there i didn't want to type that

Answer:

Part B

Explanation:

Answer:

Silent mutations does not result in an amino acid sequence

From the image it is obvious that  lizards on either side of the river maintained identical gene sequences.

Gene refers to the unit of inheritance found in the chromosomes. Genes contain the DNA which is passed on from parents to offspring and is responsible for inheritance.

We can see from the image that the lizards on either side of the river maintained identical gene sequences. Identical gene sequences increase biodiversity by ensuring genetic information is passed onto offspring.

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Stems and leaves have different physical appearance and growth patterns that make them easy to distinguish. By looking at their thickness, shape, and structure, as well as their growth direction and attachment to the stem, you can tell whether a particular part of the plant is a stem or a leaf.

Stems and leaves are two important parts of a plant, and they have distinct physical appearance and growth patterns that can help you differentiate between them.

The stem is the main axis of the plant, and it grows upright or horizontally, depending on the plant species. It usually has a cylindrical or rounded shape, and it may be smooth or covered with ridges or bumps. The stem has nodes, which are the points where the leaves attach to it, and internodes, which are the sections of the stem between the nodes.

In contrast, the leaves are the flat, green structures that emerge from the stem. They are attached to the stem at the nodes and grow outwards. Leaves are usually thin and flexible, and they have a blade and a petiole. The blade is the flat, expanded part of the leaf that contains the photosynthetic cells, while the petiole is the stalk that attaches the blade to the stem.

To distinguish between stems and leaves, you can look at their physical appearance and growth patterns. Stems are generally thicker and more rigid than leaves, and they grow upwards or sideways. They also have nodes and internodes, which are absent in leaves. In contrast, leaves are thin, flexible, and flat, and they grow outwards from the stem. They also have a distinct blade and petiole structure that is not present in stems.

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Oil spill has detrimental effects on the environment.

During transportation of oil, the leakage of oil that occurs in the water bodies, specifically in the oceans and seas is referred to as oil spill.

This spilled oil floats on the surface of water. This oil has effects on aquatic animals as well as the birds that hover around the water bodies. For instance, if the feathers of the seabirds get oiled, the birds can die of hypothermia. Many fishes and planktons die because of the oil spilled.

The oil droplets present on the surface are degraded by the process of photooxidation that happens due to exposure to light and oxygen. This also results in the formation of free radicals that are harmful to the water body as well as to the organisms present in water.

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Answer:

True

Explanation:

They are unbiased they have to consider everything before coming to a conclusion.

Answer:

the temperature of pure melting ice and the upper fixed point is determined by temperature of pure boiling water.

Explanation:

ITACHI UCHIHA

Vestigial structures are remnants of structures or organs that were present in an ancestor species but are no longer present in the current species. Examples of vestigial structures include the wings of the ostrich, the appendix in humans, and the hind leg bones of the whale.

They are anatomical structures that have lost their original function through the process of evolution. They are often referred to as "leftover" or "useless" parts of the body. However, some vestigial structures may have gained new functions over time.

Here are 3 examples of vestigial structures:

1. The appendix: The appendix is a small, tube-like structure that is attached to the large intestine. It is believed to have once played a role in digesting tough plant material, but is now considered to be a vestigial structure as it no longer serves a necessary function in the human body.

2. Wisdom teeth: Wisdom teeth are the third set of molars that typically emerge during young adulthood. However, due to the evolution of the human jaw, many people do not have enough room in their mouth for these teeth, and they often become impacted or cause other dental problems.

3. Tailbone: The tailbone, or coccyx, is a small, fused set of vertebrae at the base of the spine. It is believed to be the remnant of a tail that was once present in our ancestors, but is now considered a vestigial structure as it no longer serves a functional purpose.

Overall, vestigial structures are a fascinating reminder of our evolutionary history and the changes that have occurred in our anatomy over time.

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Answer:

A. Mix-matching

Explanation:

Sexual reproduction increases genetic variation in offspring by three main mechanisms: 1-random assortment of chromosomes during meiosis 2-genetic recombination, and 3-random fusion of gametes from different parents. In the first place, the pairs of homologous chromosomes are randomly oriented in metaphase I before they separate in Anaphase I. In consequence, daughter gamete cells receive different combinations of chromosomes. Second, recombination (also called crossing over) refers to the interchange of genetic material between non-sister chromatids during prophase I, thereby also increasing genetic variation in daughter cells. Third, the fusion of two haploid cells (i.e., gametes) in diploid organisms results in the formation of a single zygote cell that develops into a new organism, thereby the process of random fertilization between any two gametes generates different diploid zygotes, increasing thus genetic diversity.

Answer:

The fur lost 5 electrons.

Explanation:

Protons can't be moved between objects or elements. Protons are in the center of atoms, not only that but it is also used to identify what element is being used.

Electrons, however, can be moved. It can be decreased or increased. Not only that but because the rubber rod GAINED 5 elections. It is the rabbit fur that LOSES 5 electrons.

Answer:

The Earth has different compositional and mechanical layers. Compositional layers are determined by their components, while mechanical layers are determined by their physical properties. The outermost solid layer of a rocky planet or natural satellite. The Earth has an outer core (liquid) and an inner core (solid).

Explanation:

hope this helps and have a great day

Answer:

I think the answer is energy

The process that links the physical sensory world and the brain for each of the senses (vision, hearing, taste, smell, and touch) is known as transduction.

Here's how transduction works for each of the senses:

1. Vision: The eye transduces light energy into neural impulses, which are then transmitted to the brain via the optic nerve.

2. Hearing: The ear transduces sound waves into neural impulses, which are then transmitted to the brain via the auditory nerve.

3. Taste: Taste buds on the tongue transduce chemical signals from food into neural impulses, which are then transmitted to the brain via the gustatory nerve.

4. Smell: Olfactory receptor cells in the nose transduce chemical signals from odors into neural impulses, which are then transmitted to the brain via the olfactory nerve.

5. Touch: Sensory receptors in the skin transduce physical pressure, temperature, and pain into neural impulses, which are then transmitted to the brain via various sensory nerves.

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Answer:

The sand will absorb more energy. This is because it is a solid, and more of a conductor of heat. Water on the other hand is not a conducter of heat, You can observe that even more when temperatures are equal.

Explanation:

Hope this helps :)

The statement describes an ecosystem, which is a dynamic community of living organisms (plants, animals, microorganisms) interacting with each other and with the nonliving components (such as water, air, and soil) of their environment.

Ecosystems can vary in size, from small ponds or gardens to large forests or oceans, and they play important roles in regulating various biogeochemical cycles, such as the carbon and nitrogen cycles, and supporting biodiversity.

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Answer:

new species immigrant to fill the gaps

Explanation:

so far the entire species are wiped out then new species have to immigrate and fill the gaps