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Answer:

1:2:1

Explanation:

To get the phenotypic ratios, first you must figure out the genotype results of the cross. If the two cattle both have RW, then you get 25% RR, 50% RW, and 25% WW.

This means you have 1 fully red cattle, 2 roan cattle, and 1 fully white cattle, or just simplified as 1 (red) : 2 (roan) : 1 white.

The ratio of red to white is 1:1, and the ratio of roan to non-roan is 2:1, which gives the phenotypic ratio of 1:2:1 for red:roan:white.

Codominance is a type of genetic inheritance in which both alleles of a gene are expressed equally in the phenotype of a heterozygous individual. This means that neither allele is dominant or recessive, and both contribute to the observable traits of the organism

When two roan cattle (Rr x Rr) are crossed, the possible genotypes of their offspring are RR, Rr, and rr. The phenotypic ratios of the offspring will be:

25% red (RR)

50% roan (Rr)

25% white (rr)

This is because both red and white alleles are codominant, meaning they are expressed equally in the heterozygous state (Rr) and produce the roan phenotype. The ratio of red to white is 1:1, and the ratio of roan to non-roan is 2:1, which gives the phenotypic ratio of 1:2:1 for red:roan:white.

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Answer:

Unlike the mucosa of other hollow organs, the urinary bladder is lined with transitional epithelial tissue that is able to stretch significantly to accommodate large volumes of urine. The transitional epithelium also provides protection to the underlying tissues from acidic or alkaline urine.

Explanation:

Answer:

Two strategies China is using to make less of an impact on ecosystems are:

Answer: C. Eat a plant-based diet

Explanation: Of the following, the most impactful action you can take to reduce your

carbon footprint is: Eat a plant-based diet

Carbon footprint is the emission of the greenhouse gases like carbon. Lights should be turned off whenever not in use can help in reducing the carbon footprint. Thus, option A is correct.

The carbon footprint is the amount of carbon, methane, and other greenhouse gases emitted due to natural or man-made activities. It is expressed in the terms of carbon dioxide released into the atmosphere.

The lights should be turned off whenever not in use to reduce the emission of the gases that harms the ozone and environment as the light energy release many greenhouse gases.

Therefore, the lights should be turned off whenever not in use to reduce the carbon footprint.

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Nicotine is absorbed easily through the skin and feathers of birds. The smoke emitted from cigarettes will release nicotine into the air and that nicotine will settle on surfaces. These surfaces include your bird’s cage, bowls, toys and the bird itself. When a bird has nicotine land on their skin from secondhand smoke they will many times pick at their feathers or bite at their feet. Some will bite at themselves to the point that they create open wounds.

Respiratory infections and lung cancers are also a concern for birds kept in an environment where secondhand smoke is prevalent. Pneumonia is a very serious condition in domesticated birds and can lead to death.

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Based on the DNA sequence: TAC,CCA,TAG, CAC ,GTT,ACA, ACG

Transcription is the process by which RNA molecules are made from DNA molecules.

The RNA molecules produced are known as messenger RNA or mRNA which are then used to make proteins.

Translation is the process by mRNA molecules are used to make proteins from amino acids at the ribosomes.

The nucleotides in the mRNA are read in triplets known as codons.

For the given DNA sequence: TAC,CCA,TAG, CAC ,GTT,ACA, ACG

The mRNA produced is: AUG, GGU, AUC, GUG, CAA, UGU, UGC.

The amino acid sequence is: Met, Gly, Isoleucine, Val, Glu, Cys, Cys.

Therefore, proteins are made from DNA through the process of transcription and translation.

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The missing statements and hormone interactions are:

Hormones have three ways of interaction that affects how a cell can give.

One hormone has the opposite effect of another one. For example, when glucose levels are high, our body releases insuline so that our body can store it for later. However, when glucose levels are low, our body releases glucagon to release the storaged glocose.

The release of one hormone allows the second one to act in a different organ. For example, the hypothalamus releasing TRH, which affects the hypofisis releasing TSH, and his hone affects the tyrod gland, which will produce T4 and T3.

It is an effect that happens when two hormones with a similar effect act together, amplifying their effect. For example, the increasing levels of testosterone and FSH together allow for sperm production.

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Answer:

Yeast can carry out both anaerobic respiration (fermentation) and aerobic respiration.

Explanation:

Both produce carbon dioxide, fermentation produces a much lower amount of ATP. Fermentation produces ethanol.

Answer: Yes.

Explanation:

it do demonstrate the fact because it has 2 different ways of testing whether or not oxygen effects the production of foam in the glasses.

Answer:

Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planets in orbit around the sun.

Explanation:

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The sun’s gravitational pull extends to all 8 planets by the The Sun's gravity pulls the planets in orbit round it, and a few planets pull moons in orbit round them.

A planet's orbital pace changes, relying on how a long way it's far from the Sun. The nearer a planet is to the Sun, the more potent the Sun's gravitational pull on it, and the quicker the planet movements. The farther it's far from the Sun, the weaker the Sun's gravitational pull, and the slower it movements in its orbit.

Even spacecraft are in movement via the sun system, both in orbit across the Earth or Moon, or touring to similarly worlds, due to gravitational forces.

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Cell-mediated immunity involves the activation of different specialized cells present in the immune system.

Cell-mediated immunity is a type of adaptive immune response that involves the activation of different specialized cells present in the immune system.

These cells include, among others, phagocytes (macrophages), cytotoxic T-lymphocytes, etc.

Cell-mediated immunity also involves the release of chemical messengers such as cytokines that activate immune responses (e.g. inflammation).

These immune responses act in a concerted mode to recognize and attack antigens present in the flu virus.

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Answer:

Plants are autotrophs, which means they produce their own food. They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel. These primary producers form the base of an ecosystem and fuel the next trophic levels.

The observation of a new plant species in the Amazon rainforest that has blue leaves can be interpreted as a plant that absorbs all color wavelengths except blue.

Photosynthesis is a group of reactions through which plants can produce simple carbohydrates by using the energy from the sun.

During this process (Photosynthesis), the plant needs to absorb solar radiation in different color wavelengths.

The observation of blue leaves means that the plant cannot absorb this color wavelength during Photosynthesis.

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Answer:

I believe that this one is the cell membrane, but double-check.

Explanation:

Answer:

fish: blood flows unidirectionally from the two-chambered heart through the gills and then the rest of the body.

mammal: Blood is pumped from veins of the systemic circuit into the right atrium of the heart, then into the right ventricle. Blood then enters the pulmonary circuit, and is oxygenated by the lungs. From the pulmonary circuit, blood re-enters the heart through the left atrium.

Answer:

Some tortoises, including Lonesome George, have shells that rise in front, like a saddle. This adaptation makes it easier for them to lift their heads high to eat tree cactus and to resolve disputes over limited food resources, which they do through raising their heads as high as possible during social interactions.

Explanation:

Answer:

LD50 means a lethal dose of a particular substance or drug is given to a group of animals in a test group. This dose has the ability and capacity to kills 50% of the population of the test group of animals.

If Substance A has an LD50 of 20 mg/kg of body mass, this means that for 1 kg of body mass, 20 mg of substance A can kill 50% of the population that substance A was given to the test group.  

If Substance B has an LD50 of 10 mg/kg of body mass, this means that for 1 kg of body mass, 10 mg of substance A can kill 50% of the population that substance B was given to the test group.

Therefore, Substance B is deadlier than Substance A because the quantity of substance B (10mg) is less than the quantity of Substance A (20mg) and it has the same lethal effect on the population.

Explanation:

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Answer:

B

Explanation:

Substance B is deadlier than Substance A because the quantity of substance B (10mg) is less than the quantity of Substance A (20mg) and it has the same lethal effect on the population.

Answer: Many animals make their home in coniferous forests, some of which have thick fur to insulate them against frigid winters, while others hibernate to endure the cold and some migrate to warmer temperatures.

Explanation:

The oxidation of a substance is the a chemical reaction in which oxygen is combined with another substance. Similarly the phosphorylation is the addition of phosphate group and dephosphorylating is the removal of phosphate group.

The oxidation reaction is a type of  reaction in which a substance reacts with oxygen or it loss one or more electron to transfer to its higher oxidation states.

The phosphorylation is the addition of a phosphate group  (PO₄) into a molecule. Phosphorylation is a very significant combination reaction step takes place in nucleic acids in all living things.

Dephosphorylation  is just opposite to the phosphorylation reaction. Here, the phosphate group is removed from the molecule. In some metabolic reactions ATP undergo dephosphorylation to form ADP molecule. Hence, all the terms and definitions are correctly matched here.

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Answer:

if it is longshore

it leaves the waste materials in the water on the lanf

Answer:

They are usually found in the center and they are called embyro sacs.

Explanation:

Answer:

The lac Z , Y , and A genes would not be expressed . 8 . What is the role of glucose in catabolite repression ? It decreases the levels of c AMP in the cell , repressing transcription from the lac operon

Explanation:

Answer:

The maximum population size that an ecosystem can support is called carrying capacity. Limiting factors determine carrying capacity. The availability of abiotic factors (such as water, oxygen, and space) and biotic factors (such as food) dictates how many organisms can live in an ecosystem.

Explanation:

Answer:

Fusion is generally impossible because the strongly repellent electrostatic forces between the positively charged nuclei prevent them from colliding and fusing. One of the key reasons we haven't been able to realize the promise of fusion is because its energy requirements are outrageously large. High-energy neutrons are produced during fusion reactions, although they are not radioactive in and of themselves. They do, however, have such a strong influence on the reactor's walls.

We can confirm that actions that would not be considered routine after said procedure include all of which are not directed towards the care and recovery of the animal.

Routine practices include caring for the animal as it recovers from the effects of the anesthesia as well as administering fluids to keep it hydrated. Even pain control through the use of pharmaceuticals is considered normal practice, anything that would fall outside of these actions may be considered abnormal practice.

Therefore, we can confirm that actions that would not be considered routine after said procedure include all of which are not directed towards the care and recovery of the animal.

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Answer:The changes in land use associated with urban development affect flooding in many ways. Removing vegetation and soil, grading the land surface, and constructing drainage networks increase runoff to streams from rainfall and snowmelt.

Explanation: