In chicken feather color black is incomplete dominant to white. The intermediate is Blue.
A blue feathered chicken is crossed with a white feathered chicken.

If they produce 8 chicks, how many will have Blue feathers?
a.0
b.4
c.8
d.2

Answer:

the algae is a primary consumer

The members can propose:

A good way to start is to save water drive less walking use less energy buy recycled products eat locally grown vegetables and go green to combat air pollution. These include joining organizations generating less waste and planting more trees.

You are one of twenty-four companies accredited by the United Nations to provide advisory services on climate change. The main goals of the green initiative include offsetting greenhouse gas emissions from human activities and reforestation projects in riparian areas in need of restoration. They act as catalysts for expanding social and economic opportunities and improving quality of life.

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The time that it would take the disease to spread is exponential function.

We know that a disease spreads rapidly and that it is possible to make use of a mathematical model to tell the rate at which the infection would spread across board. We have that;

Number of infected people Po =  100,000

Number of people infected after time t = 800,000

Time taken = t

Infection rate = 12%

We then have that;

P(t) = P(o)e^rt

800,000 =  100,000e^0.12t

800,000/100,000 = e^0.12t

8 = e^0.12t

ln 8 = 0.12t

t = ln 8/0.12

t = 17 days

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Tiger mosquitoes are associated with the transmission of many human diseases, including viruses such as dengue fever West Nile fever, and Japanese encephalitis.

In Asia, this species is the vector of dengue fever and Japanese encephalitis. Laboratory studies have shown that tiger mosquitoes are efficient vectors for many viral pathogens including yellow fever West Nile virus, St. Louis encephalitis, and La Crosse encephalitis. Asian tiger mosquitoes were introduced to the United States. Tire casings are imported for remanufacturing.

Due to the movement of tire casings, this species has spread to more than 20 states since 1985. Asian tiger mosquitoes were introduced to the United States. Tire casing imported for remanufacturing. This species carrying tire casings has spread to more than 20 states since 1985. Tiger mosquitoes are important vectors in Asia. Tiger mosquitoes can transmit viruses such as dengue chikungunya and zika to humans.

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Answer:

a quarter is a metal while an eraser is a rubber.

Explanation:

it is simply a difference between conductor and insulators.

The correct sequence that represents structures organized from the most complex to the least complex is oak tree-leaf- guard cell- chloroplast.

A tissue is made of groups of the same kind of cells with a common structure and function.  An organ is a structure that contains at least two different types of tissue functioning together. These are called level of organization .

In plants the cells have cell wall which is the more complex , hence it is considered as most complex structure .The body of a multicellular organism, such as a tree or a cat, exhibits organization at several levels that includes tissues, organs, and organ systems .

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Independent genes are inherited according to the law of independent assortment, while Linked genes are inherirted together. Linked genes: 1) 3:1. 2) No. 3) AB, ab. Independent genes: 1) 9:3:3:1 2) Yes. 3) AB, Ab, aB, ab.

Independent assortment is a law that states that the alleles from two or more different genes distribute independently from each other in gametes.

A gamete receives an allele from a gene that does not depend on nor influence the allele of another gene in the same gamete. This can only be applied to independent genes.

These genes segregate independently after crossing over because they are located far away from each other.

Some other genes, however, are too close to each other and do not segregate independently. These are the linked genes, and they do not exhibit an independent distribution, and they inherit together more frequently.  

In the exposed example,

We will assume these genes express complete dominance.

Linked genes

1)

Parentals) AaBb  x  AaBb

Gametes) AB ab      AB  ab

Punnett square)         AB     ab

                      AB    AABB  AaBb

                       ab    AaBb  aabb

F1) 1/4 AABB + 2/4 AaBb  : 1/4 aabb

2/4 of the progeny is exprected to express the dominant traits, while 1/4 is expected to express the recessive traits.

Phenotypic ratio ⇒ 3:1

2)

No, the law of independent assortment does not apply

3)

Since the parents of these individuals are both true breeding, the gametes are AB and ab.

Independent genes

1)

Parentals)        AaBb        x         AaBb

Gametes) AB Ab aB  ab        AB Ab aB  ab

Punnett square)         AB        Ab          aB        ab

                      AB    AABB     AABb    AaBB    AaBb

                      Ab    AABb     AAbb     AaBb    Aabb

                      aB    AaBB      AaBb     aaBB    aaBb

                      ab    AaBb       Aabb     aaBb    aabb  

F1)

9/16 individuals are expected to express the two dominant traits, A-B-

3/16 individuals are expected to express one of the dominant traits, A-bb

3/16 individuals are expeected to express the other dominant trait, aaB-

1/16 individuals are expected to express the recessive trait, aabb

Phenotypic ratio ⇒ 9:3:3:1

2)

Yes, the law of independent assortment does not apply

3)

Since the parents of these individuals are both true breeding, the gametes are AB, Ab, aB, and ab.

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Answer:

The reason why they have a sore throat is because they most likely have mono

Explanation:

If your throat is sore and based on the information listed the only possible reason would be is that they have mono

The graph representing number of deer's vs deer population is plotted and discussed below.

A graph plotting is a process of plotting the coordinates given that represent a relation between two quantities and gives an idea of how one quantity varies with respect to other.

Given are the coordinates of Deer population from 1905 to 1939.

We can plot the given coordinates on the graph very easily. Along the x - axis, we will plot the deer population and along the y - axis we will plot number of deer's. The plotted graph is attached with the answer. For a given coordinate say (x, y), the x - coordinate is plotted on x - axis and the y - coordinate is plotted on y - axis.

Therefore, the graph representing number of deer's vs deer population is plotted and discussed above.

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Answer:

Explanation:

Keratin is a type of protein that forms the cells that make up the tissue in nails and other parts of your body. Keratin plays an important role in nail health. It protects nails from damage by making them strong and resilient.

This question's correct answer is 0.44.

A dominant phenotype is one that manifests itself in one of two ways: the inheritance of two dominant alleles (homozygous dominant) or the inheritance of one dominant and one recessive allele (heterozygous dominant).

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cardiorespiratory fitness is important because allows the blood to carry oxygen and nutrients to the body.

The intensity of your workout and oxygen use are measured using metabolic equivalents (METs). They gauge energy use when at rest.

Maximum oxygen uptake (VO2 max) and how it is utilised during vigorous exercise are the two factors used to gauge cardiorespiratory endurance. Increased oxygen uptake indicates that your cardiorespiratory system is operating effectively and that you are using more oxygen. VO2 tests are often performed in a lab, hospital, or clinic with the assistance of a clinician or exercise physiologist. With a certified fitness teacher, you can perform submaximal testing.

Your cardiorespiratory endurance is assessed using submaximal exercise tests. Your cardiorespiratory endurance may be enhanced with the help of these exercises. They can be performed anytime, anywhere, and don't require a lot of equipment.

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The requirements of biosynthesis are carbon and other essential elements as well as (d) "reducing agents and energy for anabolic enzymes."

The question asks for the conditions necessary for biosynthesis. Biosynthesis describes the processes that result in the production of complex polymers from simple monomers.

It indicates that anabolic reactions are being discussed. (Catabolic reactions are those that cause polymers to disintegrate into monomers.) Complex polymers are created by anabolic reactions, which are defined as those processes.

Polymer synthesis is a reduction process. For instance, carbon dioxide is converted to generate glucose during photosynthesis. It implies that reducing agents that convert monomers into polymers are necessary.

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Option b The presence of H3K27me element would make you most confident that a region is facultative heterochromatin and not constitutive heterochromatin.

Eukaryotic genomes contain heterochromatin, which serves a variety of purposes including limiting DNA replication and repair and silencing of gene expression. Heterochromatin separates from euchromatin spatially within the nucleus and is preferentially positioned around the nucleolus and nuclear periphery. In contrast to euchromatin, which is less condensed, richer in genes, and more readily transcribed, heterochromatin is highly condensed, gene-poor, and transcriptionally silent (Huisinga et al. 2006). Differentiating euchromatin from heterochromatin are nucleosome changes. The active transcription of DNA into mRNA products occurs in the presence of euchromatin. Gene regulatory proteins and RNA polymerase complexes can attach to the DNA sequence thanks to the unfolded structure, which can then start the transcription process. The distal arms of chromosomes include euchromatin, which is present in a decondensed form. Typically, it is spread out all across the nucleus.

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Answer:

The nucleus of an atom contains the atom's protons and neutrons. It is the higher concentrated region of the atom that contributes to most of its weight. It has a positive charge because the protons are positively charged and the neutron is uncharged.

hope it helps.

The process of reading a DNA strand and making a complementary DNA copy of that strand is called Replication.

DNA must be duplicated when a cell splits into daughter cells because it houses the genetic code for an organism. Replication is the process of copying DNA. One double-stranded DNA molecule can produce two identical DNA helices through the process of replication.

Step 1: Formation of Replication Forks The double-stranded molecule of DNA needs to be "unzipped" into two single strands before it can be copied. Adenine (A), thymine (T), cytosine (C), and guanine (G) are the four bases of DNA that pair up between the two strands.

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Pricilla uses Rods to move around and recognize simple shapes in her room in the middle of the night.

How do photoreceptors work?

which convert light into signals that are sent to the brain. Photoreceptors give us both color vision and night vision. The two different types of photoreceptor cells are rods and cones. Numerous eye problems may affect photoreceptor cells.

The initial stage of vision is carried out by specialized neurons known as rod and cone photoreceptors. In the back of the retina, close to the retinal pigment epithelium (RPE), which is a cell layer necessary for photoreceptor survival, are these light-sensitive cells.

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The given image is of fermentation. Fermentation is an anaerobic chemical process that breaks down molecules like glucose.

These pathways for fermentation are simply more complex versions of glycolysis. Yeast undergoes more reactions than your muscles do, which results in alcohol being produced instead of lactic acid.

Although it's a frequent process, fermentation isn't the sole way to anaerobically extract energy from fuels (in the absence of oxygen).

Anaerobic cellular respiration relies on the movement of electrons from a fuel molecule through an electron transport chain to power the production of ATP, much like aerobic cellular respiration does.

Therefore, The given image is of fermentation. Fermentation is an anaerobic chemical process that breaks down molecules like glucose.

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Bacteria can be grow best in warm, moist and protein rich environment. The following precautions we need to take while growing of bacteria:-

Bacteria are small single-celled organisms. Bacteria are found nearly anywhere on earth and are vital to the planet's ecosystems. some species can stay beneath intense situations of temperature and strain. The human frame is complete of bacteria, and in reality is expected to contain more bacterial cells than human cells.

The ancestors of bacteria were unicellular microorganisms that were the primary forms of lifestyles to seem in the world, about four billion years in the past. For about three billion years, maximum organisms have been microscopic, and bacteria and archaea were the dominant forms of life.

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The statement that people who exercise for an hour may have lower cholesterol levels is a hypothesis. The cholesterol level would be the dependent variable.

In science, hypotheses are tentative statements made regarding natural phenomena. These statements are untested. They can be tested using relevant experiments.

Thus, hypotheses are usually made before relevant experiments are conducted.

Thus, in the illustration, the statement that people who exercise for an hour may have lower cholesterol levels is considered a hypothesis.

Also, in experiments, there are different types of variables:

Independent variables are supplied by researchers and can be manipulated to produce different outcomes.

Dependent variables are a measure of the effects of the independent variables.

Thus, in the illustration, the level of exercise is the independent variable. The variable that the exercise was hypothesized to affect is the cholesterol level. Meaning that cholesterol level is the dependent variable.

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NnllddMM is the correct answer. A genotype is a classification of the type of variant found at a specific location (i.e., a locus) in the genome.

In a broad sense, the term "genotype" refers to an organism's genetic makeup; in other words, it describes an organism's entire set of genes. In a narrower sense, the term can refer to the alleles, or variant forms of a gene, that an organism carries. A genetic test is an obvious way to determine our genotype. Companies like 23andMe can do this fairly cheaply these days. To make this work, scientists must first identify the genetic difference that causes a trait.

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The bacteria that are responsible for turning nitrogen from the atmosphere into usable nitrogen for plants are commonly called as Rhizobium.

Rhizobium bacteria are a particular taxonomic group of bacteria that are well known because they are able to fix important amounts of nitrogen present in leguminous plants. These bacteria can generate nodules capable of fixing nitrogen in the air which is then employed by the plant to synthesize biomolecules.

Therefore, we can conclude that Rhizobium represents bacteria that can use the nitrogen in the air to fix it into leguminous plants.

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Velocity is the rate at which something moves in a specific direction. as the speed of a car driving north on a highway or the pace at which a rocket takes off. Because the velocity vector is scalar, its absolute value magnitude will always equal the motion's speed.

Sea waves slow down as they get closer to land. The following equations explain how a wave's velocity, wavelength, and frequency are related:

v= f x λ

the frequency f

equals wavelength

f = 1/λ ..............(1) (1)

In this way, as the wave expands in speed, the wavelength and frequency also rise depending on the circumstance (1). When the velocity drops, the frequency and wavelength both start to get smaller.

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We know very little about the mantle because-

For humans, creating a picture of the mantle is very challenging. It is difficult to send a robotic or human mission to the mantle (Earth's core) to observe and gather additional evidence in order to further our understanding of its existence because of the mantle's extreme temperature.

A mantle is a layer inside a planetary body bordered below by a core and above by a crust. Typically the thickest and most massive layer of a planetary body, mantles are composed of rock or ice. Planetary bodies that have undergone differentiation by density are known to have mantles. Mantles are found on all planetary moons, all terrestrial planets (including Earth), and a number of asteroids. Silicate rock makes up the Earth's mantle, which lies between the crust and the outer core. Its 4.01 x 1024 kg mass is 67% that of the Earth. It makes up about 84% of the Earth's volume and has a thickness of 2,900 km (1,800 mi). Although it is mostly solid, in geological time it behaves like a viscous fluid.

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DFCEBA : A plasmid is isolated from a strain of bacteria, the gene of interest is isolated from the cell of an organism,the gene of interest is inserted into a plasmid, the plasmid containing the recombinant dna is inserted into bacteria.

Bacteria and certain other microscopic species contain plasmids, which are tiny circular DNA molecules. Physically distinct from chromosomal DNA, plasmids multiply on their own. They typically include a small number of genes, some of which are transferred from cell to cell and are linked to antibiotic resistance. Recombinant DNA techniques are used by scientists to splice the genes they want to research into a plasmid. The inserted gene is duplicated along with the plasmid as it duplicates itself. Molecular biotechnology has benefited greatly from the development of plasmids. They serve as vectors, or delivery systems, for introducing foreign DNA into bacteria. Beginning in the 1970s, DNA from other creatures was initially "cut and pasted" into particular locations within plasmids.

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Answer:

(1) 7 a

Explanation: