Do convection currents of thermal energy form in Earth’s crust?

Answer:

answer is c

Explanation:

^since she was so helpful

Answer:

D. haploid spores that undergo mitosis.

Explanation:

The Life Cycles of Plants quiz on edge.

Answer:

The answer is D! It produces the proteins needed for chemical reactions to keep the body moving.

have a blessed day :)

Explanation: i just took the k12 test :D

Answer:

C) It creates the specialized cells needed to form tissues and organs.

The Cambrian Explosion (542-488 million years ago) is one of evolutionary biology's greatest mysteries. It was only during this period that complex organisms became widespread and diversified.

The scale of this event can be understood from the contrast between the biota and the extent of fossil diversity on the left and right. Cambrian paleontology has made great strides over the past century. In particular, well-preserved molluscs were found in the Middle Cambrian Burgess Shale and  Lower Cambrian Motianshan Shale sediments. The Cambrian side of the "Cambrian Explosion" is more abundantly depicted, contrasting with the Precambrian side. These extremely well-preserved fossil organisms are very difficult to study. The main challenge is her three-dimensional reconstruction and determination of the cellular tissue pattern of the Okina embryo and the fossil-buried structure of the Maotianshan shale. In this lecture, two recent technological approaches, propagating phase-contrast synchrotron X-ray microtomography and microtomography, enable non-destructive computational investigation and visualization of  internal and hidden features in each plane and in virtual 3-dimensional slices. We indicate that we provide our own analytical tools to make it possible. -D Internal structure representation.

Therefore, throughout the Cambrian epoch, each of these variables helped to expand animal phylum diversity.

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Answer:

Different

Explanation:

The climatic conditions or weather conditions of the southeast of the United States are different to that of the northeast Africa. And because of this, the two zones are not expected to have the same type of animals.

For example, the weather conditions of the southeast of the United States are humid and thunderstorms, while that of the northeast Africa are hot and dry.

When buffers acid of pH 5 is added to a strong base (pH 14), its pH will become lower, hence option a is correct.

The amount of hydrogen ions (acidity) rises and the pH decreases when acid is dissolved in a solution.

When an acid and a base are together, they react to counteract each other's effects and create a salt. Water is created when the OH⁻ anion of the base and the H⁺ cation of the acid mix.

Therefore acid lowers the pH of the base when added to the solution, hence option a is correct.

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The type of fatty acid that has hydrogen atoms located on the same side of the double bond is a cis fatty acid.

Fatty acids are organic molecules composed of a hydrocarbon chain and a carboxyl group (-COOH) at one end. They can have one or more double bonds in their hydrocarbon chain. In cis fatty acids, the hydrogen atoms attached to the carbon atoms of the double bond are on the same side of the molecule.

The cis configuration creates a kink or bends in the fatty acid chain. This bent structure affects the physical properties of the fatty acid, such as melting point and fluidity. The presence of the cis double bond introduces a rigid and less compact structure, making the fatty acid more likely to be in a liquid or oily state at room temperature.

Therefore, it is the cis configuration of the double bond in fatty acids that causes the hydrogen atoms to be located on the same side of the bond.

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Answer:

why

Explanation:

The amino acids in a protein polymer are connected by a covalent bond called a peptide bond that connects the carboxyl group of the first amino acid to the amino group of the second amino acid. Such successive amino acid bondings generate a protein polymer called a polypeptide.

A peptide bond is formed through a condensation reaction between the carboxyl group of one amino acid and the amino group of another amino acid. This bond results in the formation of a covalent linkage between the carbon and nitrogen atoms of the amino acids, creating a peptide bond. The successive formation of peptide bonds between amino acids leads to the generation of a polypeptide chain, which is the primary structure of a protein.

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The study of bacteria small, single-celled prokaryotic organisms is called Bacteriology .

The study of microorganisms, which are defined as any tiny creature with a single cell (unicellular), a group of cells, or no cells at all, is known as microbiology (acellular). Prokaryotes and eukaryotes, such as fungi and protists, are included in this.

Prokaryotes are single-celled microorganisms that lack nuclei, such as bacteria and archaea, while Eukaryotes, which include ourselves and all other animals, plants, fungi, and single-celled protists, have nuclei that serve to separate their DNA from the rest of the cell.

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The best characteristic of clonal selection is the production of identical B cells that produce antibodies to the same antigen that is present in the second option. So option B is the correct answer to this.

When a pathogen attacks the body, immune cells try to kill it; however, if the pathogen crosses the body's innate immunity barrier, cell-mediated immune cells take over. Neutrophils and macrophages encounter that pathogen, which is later represented to the T cell by the macrophage (APC). The T cell later activates the B cell, and the B cell differentiates to make its clone, and the B cells secrete antibodies for the same antigen.

Hence, The best characteristic of clonal selection is the production of identical B cells that produce antibodies to the same antigen that is present in the second option.

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The pulmonary veins transport oxygenated blood back to the heart from the lungs, while the pulmonary arteries move deoxygenated blood from the heart to the lungs.)

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The skeletal system is the body's framework of bones, cartilage, and ligaments that provides support and protection for the body's organs and tissues. The human skeletal system has 206 bones, which are divided into two main categories: axial skeleton and appendicular skeleton.

The axial skeleton is the central axis of the body and includes the skull, spine, and rib cage. It provides support for the head and trunk, and protects the brain and vital organs.

The appendicular skeleton consists of the bones of the limbs and the girdles that attach them to the axial skeleton. The bones in the upper limbs include the shoulder blade, collarbone, upper arm bone, forearm bones, and hand bones. The bones in the lower limbs include the hip bone, thigh bone, knee bone, leg bones, and foot bones.

The bones are connected to each other by joints, which allow for movement. Tendons and ligaments connect the bones to muscles, allowing movement and stability. The skeletal system also includes the cartilage, which cushions the joints and reduces friction.

The skeletal system also has a vital role in the production of blood cells. The bone marrow, the spongy tissue inside the bones, produces red blood cells, white blood cells, and platelets.

The skeletal system works closely with the muscular system to help the body move and stay balanced. The skeletal system also plays a role in protecting the body's internal organs and in storing minerals like calcium and phosphorus.

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The daughter cells receive an equal distribution of the genetic material, which is copied throughout.

Mitosis is crucial for growth because it replaces deteriorated or damaged cells. Additionally, some creatures utilise mitosis to reproduce, therefore it is crucial. Now that the chromatid pairs can be seen, the spindle is starting to take shape. In the cell's middle, the chromatid pairs are arranged in a row.

They contribute to cell proliferation, often known as growth. They aid in the healing of broken or regenerating cells in cuts or wounds. It aids in asexual reproduction since daughter cells must maintain their chromosomes.

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No, it is not better to rely on regional data from individual countries when looking at global trends.

Disappointment with strategies that operate at a global level may explain why companies that do perform well internationally apply a regionally oriented strategy in addition to—or even instead of—a global one. put differently, global as well as regional companies need to think through strategy at the regional level.

What is regional data?

Regional data collection improves the performance of your sites and mobile apps by minimizing the space and total time required for data to be sent across a secure connection to data centers.

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Answer:

hydrogen, covalent

Explanation:

On average, adults lose around 1-2 mg of iron daily from urine, sweat, and shed skin. This may seem like a small amount, but it can add up over time, especially if an individual is not consuming enough iron-rich foods or if they have a medical condition that causes excessive iron loss.

Iron is an important mineral that is needed for the production of hemoglobin, which carries oxygen throughout the body. When the body loses iron, it can lead to iron deficiency anemia, which can cause fatigue, weakness, and other health problems.

Therefore, it is important to ensure that the body is getting enough iron through a balanced diet or supplementation, especially for those who are at higher risk for iron deficiency, such as menstruating women, pregnant women, and vegetarians/vegans.

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Answer:

Dry Heat

Explanation:

Answer: dry heat

Explanation:

just took the quiz

Answer:

Nervous system

Explanation:

The nervous system in humans work together to collect information about the external environment because they consist of the brain, spinal cords and neurons. They collect information from external environment and those information travels through neurons from sense organs like eyes, ears, skin e.t.c as a form of electrical impulses. When they get to the end of the neuron, a chemical called neurotransmitters are released which travels across the cells and send it to the brain, the brain then process it and interprete the signals and respond to it as stimulus.

All animals must be able to take in information and react to their environmental conditions through the Nervous system.

What are the 4 main functions of the nervous system?

Thus, the nervous system is the answer.

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Answer:

probably a substance with a stronger molecular attraction

The following is true based on given data : sunflower produces oxygen in the presence of light, while the dog does not produce any oxygen as it is not capable of photosynthesis.

We can make some observations based on the information provided. The sunflower produces oxygen through photosynthesis in the presence of sunlight, which is reflected in the data. In bright sunlight, the sunflower produced 50mL of oxygen, while in the dark it did not produce any oxygen. This indicates that the sunflower requires light to carry out photosynthesis and produce oxygen. On the other hand, the dog did not produce any oxygen in the dark, which is expected as dogs are not capable of photosynthesis.

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Biodiversity Conservation: The Solomon Islands are home to rich biodiversity, containing singular environments and endangered class.

It is important to plan out biodiversity preservation through system which controls organization and administration of protected fields, in the way that nationwide parks and sea reserves

Climate Change Adaptation: The Solomon Islands are vulnerable to the impacts of temperature change, containing climbing ocean levels, raised frequency of extreme weather occurrences, and sea acidification. It is main to expand and implement agreement actions that focus on marshy care, tenable land use preparation, and trend-resilient foundation

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In a life cycle where the gametophyte predominates, the gametophyte is bigger, lives longer, and provides the majority of the nutrients. The larger, more durable, and photosynthetic phase of the life cycle is the sporophyte generation, thus the correct options are A and E.

The life cycle is referred to as haplontic if the gametophyte generation outlives the sporophyte generation and is therefore dominant. There is a haplontic life cycle in bryophytes. The single representative of sporophytic generation is the one-celled zygote. Free-living sporophytes don't exist. Haploid spores are produced by meiosis in the zygote. The gametophyte is created by the mitotic division of the haploid spores. The free-living gametophyte is such plants' primary photosynthetic phase.

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The complete question is:

What does it mean to say that a life cycle is gametophyte dominant versus sporophyte dominant? select all that apply.

A. The gametophyte is longer-lived than the sporophyte.

B. The gametophyte produces most of the nutrition.

C. The gametophyte differs from the appearance of the sporophyte.

D. The gametophyte exists independently of the sporophyte.

E. The gametophyte is larger than the sporophyte.

1. Distinguishing normal microbiota from non-resident microbes is important to monitor health and detect potential infections.

2. Proper sampling technique ensures accurate representation of throat microbes and minimizes contamination.

1. Distinguishing the normal microbiota from non-resident microbes in a specific body location is important because the normal microbiota play a vital role in maintaining health and preventing the overgrowth or colonization of potentially harmful pathogens. Identifying the resident microbes helps establish a baseline and allows for the detection of any changes or deviations that could indicate an infection or disease.

2. The sampling technique is crucial in culturing microbes from the throat because it ensures the collection of a representative sample that accurately reflects the microbial population present. The proper technique helps minimize contamination from external sources and maximizes the chances of isolating and identifying the target microbes. It also allows for the evaluation of the microbial composition and any potential pathogens present in the throat.

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The hormone which adjusts the rate of spermatogenesis by negative feedback onto the anterior pituitary is Inhibin.

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Answer:

Explanation:XD

Answer:

Provide suitable place, making laws and reduce pollution.

Explanation:

Provide suitable place where they can breed without disturbance, making laws to forbit hunting of endangered species and reduce pollution are the different methods that can protect endangered species of animals and plants around the world. For increase in population, suitable environment is required so that they have no predators or other factor that adversely affect their growth. The laws to forbit hunting or killing has also a significant effect on endangered species. Pollution is the main reason for change in the environment that make the environment not suitable for animals and plants.

Answer:

Independent variable: Adding/not adding soil.

Dependent variables: Does the plant grow? Amount of leaves, plant length.

Controlled variables: Type of plant used, amount of sunlight received, pot used for plant, amount of water given, temperature of soil, etc.

Explanation:

Independent variable: The thing that you want to change. To see if plants need soil to grow, you would need to either add or remove soil altogether.

Dependent variables: The thing that is being measured. By adding your independent variable, you should be able to answer certain questions.

Controlled variables: Things you want to keep the same for each experimental group. For example, if you used different plants, your results could be affected negatively as some plants might rely on soil less than others/grow at a slower or faster pace.

False. A locus is a specific physical location on a chromosome that can encode one or more genes.

However, the same locus typically encodes the same gene or genes in all individuals of a given species. There can be genetic variation between individuals at a given locus due to differences in the DNA sequence, but this does not result in the encoding of different genes.A locus is a specific location on a chromosome where a particular gene is located. Each gene is typically found at a specific locus, and the same gene is usually located at the same locus in all individuals of a given species. For example, in humans, the gene for the protein hemoglobin is located on chromosome 11, and all humans have this gene at the same locus on chromosome 11.

However, there can be genetic variation between individuals at a given locus. This variation can occur through differences in the DNA sequence, such as single nucleotide polymorphisms (SNPs) or insertions/deletions (indels). This variation can affect the function of the gene, and can also be associated with differences in traits between individuals. However, these differences in sequence do not result in the encoding of different genes at the same locus in different individuals of the same species.

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