11th-grade science is really hard can someone help me...

Micelium, which is formed by a number of filaments, has the main function of penetrating the substrate in search of food and nutrient. Moreover, it can suffer some modifications to form reproductive structures.

The correct option is: B. Nutrient absorption.

to answer the question, we will discuss each item:

A) The results obtained during an investigation are information that can be used to design subsequent experiments that will answer questions that could not be answered in the first experiment.

B) The activity of making a prediction before performing an experiment is called hypothesis, which is based on observations. That is, first we will observe the phenomenon, and based on our reasoning we will generate a prediction or hypothesis that we will test with an experiment to see if it is correct.

C) An important part of the research is to have detailed records of each part of the experiment, this way if there is an error we can know in which part of the experiment it occurred and also we can give this information to other researchers so that they can replicate the experiment and confirm the results we obtained.

D) Finally, when the experiment is finished and when we are analyzing the information, we must take all the data into account and not only those that confirm our hypothesis, since that would give us an erroneous conclusion and would be a bias of information. Therefore, the answer is D.

Answer:

Explanation:

Kepler's First Law: The orbit of a planet around the Sun (or a satellite around a planet) is not a perfect circle. It is an ellipse—a “flattened” circle. The Sun (or the center of the planet) occupies one focus of the ellipse. A focus is one of the two internal points that help determine the shape of an ellipse. The distance from one focus to any point on the ellipse and then back to the second focus is always the same.

The law of ellipses suggests that the orbit of planets is not circular but ellipses

Therefore your answer would be; Ellipses

Answer:

The law of ellipses suggests that the orbit of planets is not circular but elliptical.

Explanation:

Kepler's first law (the law of ellipses) explains that the orbit of the planets around the sun is not in a circular but elliptical path.

Answer: Base Pair Deletion

Explanation:

If the normal allele has more than the mutated then that means nucleotides were lost so a deletion occurred.

Answer:Base Pair Deletion

Explanation:

We know this because it is stated that the normal gene has more base pairs than the mutated gene. In other words, the mutated gene has less base pairs than the normal gene, which means that base pairs must have been deleted during the mutation.

Answer: 1. The right answer is amphibian.

2.  The right answer is Mollusks.

Explanation:

1. Regenerating a limb is not possible in mammals, as in most vertebrates. But in amphibians such as the salamander yes!

This amphibian does it very well, capable of making tail, eye or snout too. For a very long time, scientists have been trying to understand this secret of the salamander, or that of the zebrafish, because the answer is scientifically interesting but also, of course, because we can hope to take advantage of it to imagine one day of medical treatment for injured members. Just over a year ago, an Australian team showed the role of macrophages, cells of the immune system.

2. Mollusks (Mollusca) are a branch of Lophotrochozoans animals. They are unsegmented animals, with bilateral symmetry sometimes altered. Their body usually consists of a head, a visceral mass, and a foot. The visceral mass is covered in whole or in part by a mantle, which secretes a calcareous shell. The nervous system includes a double periesophageal collar. The general cavity is more or less reduced to pericardium and nephridia.

Chromosomes are structures of nucleic acids and protein carrying genetic information in the form of genes.

The chromosome is composed of two sister-chromatids.

During meiosis and mitosis, the sister chromatids are separated to separate half of the geentic material and create a new cell.

The difference between sister chromatids and non-sister chromatids is that sister chromatids have the same alleles in the same place and non-sister chromatids have different alleles in the same place. Non-sister chromatids will have the same length and configuration, but those different alleles will represent different types of the same characteristic (for example: different colors of fur). But they look the same as sister chromatids.

As a protocol, the sample must first undergo primary biochemical tests, one of which is gram staining. And although this stain can help us to identify bacteria of the Clostridium genus, such as gram + sporulated bacilli, a more specific test would be the endospore stain, since the clostridium genus produces endospores that are also easy to isolate, since they are more resistant to temperature than the vegetative form (not sporulated) of the bacterium. An example would be the Schaeffer-Fulton stain.

Answer: When CO2 is absorbed by seawater, a series of chemical reactions occur resulting in the increased concentration of hydrogen ions. This process ...

Explanation:

Africa and North America have moved apart since 2001 by a total of about 21 inches.

This comprises of about seven landmasses on the earth which is usually very large and discrete and comprises of different countries. Examples include Africa, Asia, North America, South America etc.

Continents in the world such as Africa and North America move apart since 2001 at a rate of 1 inch per year. Since we were told that it occurred in 2001 then the total years in which it occurred is 21 then =

1 inch × 21 = 21 inches.

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In order to answer this question, we must remember a bit of cellular metabolism, when mitochondria carry out the process of cellular respiration we can see that in the electron transport chain the final acceptor of electrons is oxygen. Therefore the correct answer for the question is option D oxygen.

Answer:

u already got the answer right what ur question

Answer:

camouflaging

Explanation:

plato

A mosquito repellent which is sprayed on one arm and the other arm is not sprayed, is an example of independent variable.

A mosquito repellant is a chemical substance applied on the skin, clothes or any non-living object to avoid the appearance of mosquitoes on that surface. It is made of constituents like DEET, metofluthrin, oil of lemon-eucalyptus, picaridin, etc.

Independent variable in an experiment is that parameter which is changed. It has the potential to alter the results of the experiment as the effect on the experiment are influenced by this variable. It is called independent because no other variable can make changes in its effect.

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Answer:

All living things need to water to survive. This is because all living things are mostly made of water and since they lose water in different ways, they need to get more water to stay the same size. So if a plant does not get enough water, it will shrink. If it goes long enough without water it will die because the plant uses water for a lot of different jobs needed to keep the plant alive.

If a city were a model for a cell, would wastewater be more likely part of endocytosis.

The process of engulfing an object or particle with the cell membrane and bringing it inside the cell is known as endocytosis. The membrane completely encloses the substance by folding it over.

Endocytosis is the process by which cells take in foreign material by encasing it in their membrane. The two primary kinds of endocytosis are ocytosis and receptor-mediated endocytosis.

Endocytosis is a term that refers to a variety of active transport processes that carry particles into cells by encasing it in vesicles made of plasma membranes (endo = internal, cytosis = transport mechanism).

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Answer:

Patagonia is the southern psrt of south america.

Earth's distance and tilt affect the relative amounts of solar radiation regions receive.

Earth's distance and tilt affect the relative amounts of solar radiation regions receive. There are no options provided in the question, but this is the correct answer. The earth's orbit is not circular and the earth rotates in a tilted orbit. Whenever the south pole is tilted towards the sun, then the south pole will get more solar radiation than the north pole. The Earth absorbs most of the energy reaching its surface and a small fraction is reflected. In total, approximately 70% of the incoming radiation is absorbed by the atmosphere and the Earth's surface while around 30% is reflected back to space and does not heat the surface.

The phrase "he clung to an exposed ledge over the valley from which the train had left" Northridge Junction seems like a desperate person, because out of feeling and/or despair he clung, in this sentence the verb to grab makes it seem like a desperate way not to be in danger of life.

Despair is an emotional state of extreme tension, anxiety and fear.

The person immersed in this state cannot get out easily, because his negative perception contributes to his always being down. When recurrent, it becomes clinical and can take control of emotions.

A hallmark of clinical despair is the meaninglessness of feeling. There are no imminent threats, suffering or dangerous circumstances. Even so, the person experiences this state again and again.

Despair is associated with some mental disorders, such as depression, anxiety, post-traumatic stress disorder, and especially panic syndrome.

Commonly, it is also caused by negative events in the person's life, such as trauma, divorce, dismissal, death of a loved one, abuse, use of chemical substances, among others.

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The surface that only vacuum metal deposition can  be used on is option  B: Non-porous surfaces.

Nonporous materials are substances that do not permit the passage of liquid or air. Nonporous materials are those that are not porous, such as glass, plastic, metal, and varnished wood.

Note that  Vacuum lifting nonporous materials is much simpler than vacuum lifting porous surfaces, as the definition suggests. A proven method for creating latent fingerprints on non-porous surfaces is vacuum metal deposition (VMD).

Therefore, A variety of displays, such as flexible plastic packaging, plastic bottles, glass, and others, respond best to vacuum metal deposition (VMD).

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The cosmos is expanding at the quickest rate that astronomers have discovered. In actuality, nothing is known to move faster than the speed of light, which acts as a cosmic speed limit.

Regardless of the mobility of the source or the viewer, the  in a vacuum remains constant for all observers.

What does the idea of light speed mean?

speed of light, the rate at which light waves move through various substances. Specifically, the speed of light in a vacuum is presently calculated to be 299,792,458 meters per second. One of nature's basic constants is the speed of light.

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Enzymes perform their functions within a specific temperature and pH range (which is specific for each enzyme in particular). In turn, within this range, there is a specific value at which they act in the most efficient way possible, which does not mean that they cannot on other values in the range. However, outside the limits of the range, the internal characteristic of enzymes can be affected and cause their denaturation, thus losing their capacity of action.

The statement that is true is as follows: the density of water is 1 gram per milliliter, so objects with a relative density greater than 1 gram per milliliter will sink (option C).

Density is the measure of the mass of matter contained by a unit volume. The density of a liquid substance is a determinant of whether the substance will float or sink in water.

Water is a liquid substance with a density of 1 gram per millilitres (1 g/mL). This suggests that any substance with greater density than that of water will sink while any substance with lesser density than water will float.

Density is a measure of how heavy something is compared to its size, hence, if an object is more dense than water it will sink when placed in water, and if it is less dense than water it will float.

Therefore, according to this question, objects with a relative density greater than 1 gram per milliliter will sink.

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There are three factors that determine whether a molecule can pass through a cell membrane: concentration, charge and size. The greater the difference in concentration, the more rapid the diffusion. Large and heavier molecules more more slowly so they diffuse more slowly.

B. the concentration of the gas molecules on each side of the membrane.

We have to consider that the DNA is first transcribed into pre mRNA in the nucleus of the cell by the RNA polymerase. After this process, the non-coding fragments (introns) of the molecule are spliced by ribonucleoproteins (snRNP). Eventually, each end of the pre mRNA is modified, being a modified nucleotide named CAP joined to the 5' end, and a polyA (poly Adenine) tail at the 3' end before the now matured mRNA gets out of the nucleus to the cytoplasm.

At this point, the mRNA will be recognized by ribosomes, which will synthesize each group of three nucleotides (codons) into amino acids in a process called translation, by the action of tRNA, and finally joined into a new protein.

Note that A, P, and E are sites of the ribosomes, being A the position where first arrives the mRNA.

D. the diencephalon is where the thalamus is located

Let's first define what carrying capacity is:

Carrying capacity is the maximum amount of organisms an ecosystem can carry. It is related to our logistical growth formula:

Where K is our carrying capacity.

Carrying capacity is affected by a couple of things:

0. Resource availability,: depending on how many resources there are in an ecosystem, it can only hold so many organisms.

1. Space,: depending on how ,large, an ecosystem is, the denser the ecosystem (of organisms), the harder it is for the organisms to coexist. Therefore, the smaller the area, the lesser the carrying capacity.

These 2 factors (resources being biotic and space being abiotic) are the only factors few factors that affect carrying capacity.

Therefore, our best answer choice is A.

To be considered as fit for evolution processes, a species must be able to adapt in its environment and with capacity to reproduce sucessfully. Ambrosia, for example, is an invasive species. It has the abillty to promote accelerated evolution due to its adaptibility to its environment. Zea mays is an excellent species for genetic analysis. Quercus also has evolutionary potential because of its physiological characteristics.

The rate of cell division over time is calculated as an average for the entire meristem by dividing it with the total cell flux. Total cell flux may be characterized as the number of cells in the meristem.

Cell division may be defined as a type of biological process through which a parental cell divides into two or more daughter cells. There are two types of cell division are there:

According to the context of this question, the availability of the nutrient plays an active role in the process of cell division. It can increase the population of cells by doubling the rate of promoting growth and division of respective cells.

Therefore, the rate of cell division over time is calculated as an average for the entire meristem by dividing it with the total cell flux.

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The pairs of base sequences could form a short stretch of a normal double helix of DNA is:

D) 5'-ATGC-3' with 5'-GCAT-3'

In DNA, the code letters are A, T, G, and C, which stand for the chemical substances adenine, thymine, guanine, and cytosine, respectively. Under normal occasions, the nitrogen-containing bases adenine (A) and thymine (T) pair collectively, and cytosine (C) and guanine (G) pair collectively. The binding of those base pairs forms the structure of DNA.

Because of the base pairing, the DNA strands are complementary to each different, run in opposite guidelines, and are referred to as antiparallel strands.

Complementary base pairing is important in DNA because it lets the base pairs be arranged in the maximum energetically favorable way; it's miles crucial in forming the helical structure of DNA. it's also critical in replication as it allows semiconservative replication.

You could determine the sequence of a complementary strand if you are given the series of the template strand. These strands are complementary, with each base in one sticking to its partner on the alternative. The A-T pairs are linked by means of two hydrogen bonds, whilst the G-C pairs are connected through three hydrogen bonds.

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The correct answer is C. To block UV radiation. Ozone filters the majority of UV spectra, so it protects organisms from its effects.