What nitrogenous base is found in RNA
that is not found in DNA?
A. thymine
B. uracil
C. guanine

The order of the picture showing the stages of mitosis is found in the attachment.

Mitosis is a process of cell division that creates genetically similar cells with a constant chromosome count.

The division of duplicated chromosomes into two new nuclei occurs during the cell cycle stage of mitosis.

The stages of mitosis have been conventionally divided into 5 phases, which include:

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Answer:

Competition

Explanation:

Predation refers to one animal killing & eating the other animal. Eg, as referred - tiger & deer (former eats latter)

Competition is when an organism competes with another for resources. Eg, as given - paddy & weeds (they compete for growth resources - like nutrients etc).

Answer:

The competitive exclusion principle.

Explanation:

A process of examination in which a problem exists is first recognized and observations, investigations, or other appropriate data exists then utilized to build or test hypotheses that purport to solve it.

A process of examination in which a problem exists is first recognized and observations, investigations, or other appropriate data exists then utilized to build or test hypotheses that purport to solve it.

The scientific method exists utilized in all sciences including chemistry, physics, geology, and psychology. The scientists in these areas ask various questions and complete various tests. However, they utilize the same core method to estimate answers that exist logically and are supported by proof.

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Answer:

Topic Pyramid-

Explanation:

the basic structure of interaction in all biological communities characterized by the manner in which food energy is passed from one trophic level to the next along the food chain.

:Hope's It's Help:

According to this, there is a 50% probability that an offspring will have type A blood (AO), and a 50% chance that they will have type O blood (OO) of parents. Blood types B or AB are not likely to be present in the progeny.

Rh factors are inherited from one's parents. A child may have a mix of both parents Blood types and Rh factors, or they may have one of each. Rh factors inherit according to a typical genetic pattern. Even when combined with a Rh-negative gene, the Rh-positive gene prevails because it is dominant (stronger). A blood type A would be present in 50% of the offspring in this scenario. Watch the process of derivation. For the ABO blood type, there are three alleles.

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In this situation, half of the children or 50%, would have blood type A.

The type of blood is determined by the antigens that are on the surface of the red blood cells. Type A blood has A antigens, B blood has B antigens, AB blood has both, and O blood has neither. An O allele is considered recessive while alleles for A and B are co - dominant.

The father has blood type A, and one of his own parents had blood type O. This means that his genotype would be heterozygous, (inheritance of A)i. He would have to have IA allele to have type A blood and would have the i allele from one of his parents.

The mother is type AB, so her genotype would be (inheritance of A)(inheritance of B).

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Answer:

Rhizobium Blue green algae help in the fixation of atmospheric nitrogen into ammonia. (ii) Nitrosomonas ammonia to nitrites, and (iii) Nitrobactor converts nitrites into nitrates.

Explanation:

it is where we live and share resources with order species

I hope this was helpful

The correct sequence of metamorphic changes is d.

Shale, Phyllite, Slate, Schist. Metamorphism is a process of alteration and transformation of existing rocks into other rocks due to extreme temperature and pressure. The sequence begins with shale, a sedimentary rock composed of clay, silt and quartz particles.

Under high heat and pressure, shale is transformed into phyllite, a foliated metamorphic rock composed of mica and quartz particles. Further metamorphism of phyllite produces slate, a shiny, flat-layered metamorphic rock composed of mica, quartz and chlorite. The last stage of metamorphism is schist, a coarse-grained metamorphic rock composed of mica and quartz particles. Schist is the most highly metamorphosed of the four rocks and is characterized by its foliation and distinct layering.

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Synthetic pesticides are widely available and last longer than most organics.

        Pesticides are chemicals that kill or manage pest populations. There are many various types of pesticides on the market today, but the most prevalent are herbicides and insecticides, which kill or manage undesired plants and insects.

       Synthetic pesticides are frequently less expensive than organic pest control options. While some synthetic pesticides have a limited life in the environment, many are more persistent than organic pesticides. This can result in extended durations of protection as well as fewer frequent and smaller volume pesticide applications, saving time and money.

       Unfortunately, synthetic pesticides that do not degrade fast can pollute the environment or impose harvest limits.

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The water-soluble vitamin that is part of the TPP (thiamine pyrophosphate) complex is thiamine, also known as vitamin B1. Thiamine is an essential nutrient that cannot be synthesized by the human body and must be obtained through the diet.

Thiamine is converted into its active form, TPP, through enzymatic reactions in the body. TPP serves as a coenzyme that is involved in the decarboxylation of pyruvate, a key step in the conversion of glucose into usable energy. Specifically, TPP acts as a cofactor for the enzyme pyruvate dehydrogenase, which catalyzes the decarboxylation reaction.

Without sufficient thiamine and TPP, the breakdown of glucose and energy production would be impaired, leading to various health issues, including neurological and cardiovascular problems. In conclusion, thiamine is the water-soluble vitamin that is part of the TPP complex. Its presence and conversion into TPP are essential for the efficient breakdown of glucose and the generation of energy in the human body.

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Individual I-1 is heterozygous (Aa) for the dominant trait. This is because they have a child (II-1) who is homozygous recessive (aa). The only way for this to happen is if individual I-1 is heterozygous.

Pedigree analysis: A pedigree is a diagram that shows the inheritance of a trait from parents to offspring. In this pedigree, the dominant trait is represented by a solid symbol and the recessive trait is represented by an open symbol.

Genotype: The genotype of an individual is their genetic makeup, or the combination of alleles that they have for a particular trait. The phenotype of an individual is their physical appearance, which is determined by their genotype and the environment.

Heterozygous: An individual is heterozygous for a trait if they have one dominant allele and one recessive allele. This means that they have the potential to express the dominant trait, but they may also express the recessive trait if they are in an environment that is not favorable for the dominant trait.

Homozygous: An individual is homozygous for a trait if they have two copies of the same allele for that trait. This means that they will always express the trait, regardless of the environment.

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Since aging causes the brain to shrink, both in size and vasculature, it is possible that the student will notice these differences in the brains of the two cadavers.

The brain decreases with advancing age and there are changes at all levels from chemicals to morphology. The incidence of stroke, white matter lesions, and dementia increases with age, as does the severity of memory impairment, and neurotransmitter and hormone levels vary.

Researchers believe the following general changes occur throughout brain aging: Brain mass: Around the age of 60 or 70, the frontal lobe and hippocampus, which are involved in higher cognitive function and memory storage, begin to shrink.

Your brain and nerve system naturally change as you age. Nerve cells and weight are lost in your brain and spinal cord (atrophy).

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The anemia and easy bruising observed in a patient with leukemia indicate that the disease is affecting the normal functioning of the red bone marrow, leading to reduced production of red blood cells and impaired platelet function, respectively.

The presence of anemia and easy bruising in a patient with leukemia suggests that leukemia has an adverse effect on the red bone marrow, specifically on the production of red blood cells (erythrocytes) and platelets.

Anemia is a condition characterized by a decrease in the number of red blood cells or a decrease in the amount of hemoglobin in the blood. Since red blood cells are responsible for carrying oxygen to the body's tissues, a reduction in their numbers or functionality can result in reduced oxygen transport. In leukemia, the excessive production of immature leukocytes (white blood cells) in the bone marrow can crowd out the normal cells, including the production of red blood cells. This overcrowding and displacement can lead to a decreased production of red blood cells, resulting in anemia.

Easy bruising, on the other hand, is often associated with a decreased number or impaired function of platelets, which are responsible for blood clotting. In leukemia, the abnormal leukocytes can interfere with the normal production of platelets in the bone marrow or disrupt their normal functioning. This disruption can lead to a reduced number of functional platelets, causing a decreased ability of the blood to form clots and resulting in easy bruising or prolonged bleeding.

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Answer:

Equinox!!!

Explanation:

Answer:

it is an equinox.

Explanation:

Equinox

days when the suns light hits both hemispheres equally

hours of  daylight and darkness

takes place during solstices.

Answer:

The minerals will not be move or transported to other part of the plants because active transport require energy.

Explanation:

Active transport is a process where molecules and ions are move against a concentration gradient by using energy.

This process require energy, for ions or molecules of minerals to be taken up by plants, it is first moved to the root hairs where they are in high concentration against in dilute concentration on soil Active Transport then occur in the roots where it is taken up to the plants with the use of energy.

If there is not enough energy, active transport will not occur and the minerals will remain in the root hair and will not be move to other part of the plant.

Answer:

Where are the answer choice

In complete dominance the dominant allele inhibits the recessive one. Sex-linked genes are located and inherites together with the sex chromosomes. Example 1- 1) The father has dimples. 2) 50% of the progeny is expected to have dimples. Example 2- 1) The father is colorblinded XcY. 2) 50% of the girls are colorblinded, XcXc. 3) 50% of the boys are colorblinded, XcY

Complete dominance is the inheritance pattern in which one of the alleles hides the expression of the other allele.

The dominant allele inhibits the recessive allele when together in the same phenotype (heterozygous individuals), and only the dominnat phenotype can be expressed.

Sex-linked genes are those located on one of the sex chromosomes. In general, genes are linked to the X chromosome.

Example 1: dimples are controlled by a dominant allele, D

Parentals) Dd  x  dd

Gametes) D   d    d   d

Punnett square)      D     d

                         d    Dd    dd

                         d    Dd    dd

F1) 50% of the progeny is expected to be Dd and have dimples.

    50% of the progeny is expected to be dd and not express dimples.

1) Since dimples are coded by the dominant allele, then the father Dd has dimples.

2) 50% of the progeny is expected to have dimples.

Example 2: colorblindness is controlled by a recessive sex-linked allele.

Parentals) XcY   x   XCXc

Gametes) Xc   Y      XC     Xc

Punnett square)      Xc       Y

                      XC   XCXc   XCY

                      Xc   XcXc    XcY

F1) 1/2 = 50% of the progeny is expected to be normal XCXc and XCY

    1/2 = 50% of the progeny is expected to be colorblinded XcXc and XcY.

1) Since colorblindness is coded by the recessive sex-linked allele, then the father is colorblinded XcY.

2) 50% of the girls are expected to be colorblinded, XcXc

3) 50% of the boys are expected to be colorblinded, XcY

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Complete question

Example 1)

Fill in the Punnett squares for (A) dimples, a trait

controlled by a dominant allele, and answer the questions that follow.

1. Does either the mother or the father in A have

dimples?

2. What percentage of children are likely to have

dimples?

Punnett square)

                             D     d

                        d

                        d

Example 2)

Fill in the Punnett squares for colorblindness, a trait controlled by a recessive sex-linked allele. Then answer the questions that follow.

1) Is either the mother or the father colorblinded?

2) What percentage of the female progeny are likely to be colorblinded?

3) What percentage of the male progeny are likely to be colorblinded?

Punnett square)

                            Xc       Y

                    XC

                    Xc

The abbreviation T1, L2, L3, L4, L5, S1, and S2 refer to the spinal cord levels of the thoracic and lumbar vertebrae, as well as the sacral vertebrae.

Here is a list of what each acronym stands for:

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Answer:

Whole grain contains carbs, proteins, vitamins, etc. this creates a food supply for the germ, and energy for the rest of the plant.

Answer:

Host Cell

Explanation:

Viruses cannot live on their own, and instead need to infect a/n Host Cell to replicate. The two primary life cycles of viruses are the lytic cycle, also known as the virulent cycle, and the Lysogenic cycle, also known as the temperate cycle.

Answer:

host cell

Explanation:

Answer:

The roots of the plant grow into the cracks of the rock forcing the rock to break.

Explanation:

Hope this helps

Answer: The emergence of segmented noses in various species happened due to genetic changes that were selected for through natural selection. These genetic alterations could have occurred in either the body or the reproductive cells. Nevertheless, for the genetic transformation to be inherited by future generations, it must occur in the DNA of reproductive cells, such as egg or sperm cells, which transmit genetic information to offspring. Consequently, the genetic mutation leading to the segmented nose probably appeared in the DNA of reproductive cells.

Explanation: ^^

Answer:

See below, please.

Explanation:

In general, genetic changes that result in physical traits can occur in either the DNA of body cells or the DNA of reproductive cells.

Mutations or changes in DNA can happen spontaneously during DNA replication or as a result of exposure to environmental factors such as radiation or chemicals, among other reasons. These changes can occur in any type of cell, including reproductive cells (sperm and egg cells) or body cells (such as skin cells).

If a genetic change occurs in a reproductive cell, it can be passed on to offspring and can become part of the population's genetic makeup over time. However, if a genetic change occurs in a body cell, it will not be passed on to offspring but may still affect the individual's physical traits.

Finally, without further context about the specific genetic change that resulted in the segmented nose, it is difficult to determine whether it occurred in the DNA of body cells or reproductive cells.

Even if all the cells have the same DNA they biochemical function are different, that's because differents sets of genes must be turned on and off in each cell type by the action of enzymes and other molecules. Each cell have the same 20,000 or so genes but they are biochemically selected by the action of molecules as hormones and chemical signaling. Therefore, different cells use different parts of the DNA code as directions.

Population growth, requires two core assumptions: birth and death rate, which will acount for population growth and decrease, respectively. As medicine develops, it is expected that there will be more succesful births, and that death rate will decrease. Regarding death rate, lifespan predictions are important factors that are required for population growth. Lifespan predictions might vary between countries, since income and country development are important issues influencing population lifespan.

Answer:

Frigid temperatures, etc.

Explanation

The tundra has very low temperatures and a layer of permafrost over the soil. It has characteristics similar to the desert and it also has a short summer and a long, freezing winter. Therefore, there are not many flora variations that can thrive in that biome.

Answer:

The tundra experiences little rainfall, which makes the soil devoid of nutrients. The soil is permafrost, or permanently frozen. Both of these factors make it difficult for plants to grow in the tundra.

Explanation:

edge 2020

A sampling distribution of the mean is a theoretical distribution that represents the distribution of sample means that could be taken from a population. It is calculated by taking all possible samples of a fixed size n from the population and calculating the mean for each sample.

The sampling distribution of the mean is a distribution of the means of all possible samples of fixed size n from a population.

A sampling distribution of the mean has the following characteristics:

1. The mean of the sampling distribution of the mean is equal to the mean of the population from which the samples are taken.

2. The standard deviation of the sampling distribution of the mean is equal to the standard deviation of the population divided by the square root of the sample size.

3. The sampling distribution of the mean is approximately normal, regardless of the distribution of the population, as long as the sample size is sufficiently large (usually n > 30).

4. The width of the sampling distribution of the mean decreases as the sample size increases, indicating that larger samples are more representative of the population.

Therefore, a sampling distribution of the mean is the distribution of the means of all possible samples of fixed size n from a population, and it provides important information about the characteristics of the population.

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