A heterozygous white rabbit is crossed with a black rabbit. What is the probability of getting black rabbit offspring?

Answer:

i do not know the answer

Explanation:

Answer: After ovulation the oocyte is arrested in metaphase of meiosis II until fertilization. At fertilization, the secondary oocyte completes meiosis II to form a mature oocyte (23,1N) and a second polar body.

Explanation:

The events described involve both mechanical and chemical weathering processes, highlighting the complex nature of how weathering affects geological structures.

The events can be identified as the result of mechanical weathering or chemical weathering as follows:

The minerals in a marble statue react with water to form acids and pores in the structure - This is an example of chemical weathering. The water reacts chemically with the minerals in the marble, causing them to dissolve and form acids. These acids further react with the marble, leading to the formation of pores and overall degradation of the statue's structure.

A piece of rock crumbles after being constantly thrashed by strong waves - This is an example of mechanical weathering. The constant thrashing of strong waves exerts physical force on the rock, causing it to break apart or crumble. This type of weathering occurs due to mechanical forces like abrasion, pressure, or impact that physically break down the rock into smaller pieces.

Industrial runoff forms cracks in a rocky structure in its path - This is a combination of chemical and mechanical weathering. The industrial runoff may contain acidic or corrosive substances that chemically react with the minerals in the rock, leading to their dissolution or weakening. The cracks in the rocky structure may also be a result of the mechanical force exerted by the flowing runoff, causing physical fractures in the rock.

The rocks in a region are streaked orange after being exposed to repeated rains - This is an example of chemical weathering. The repeated rains introduce water into the rocks, which may contain dissolved iron compounds. Over time, these iron compounds oxidize in the presence of water and oxygen, leading to the formation of orange-colored iron oxide minerals, such as rust. The streaking of rocks with orange indicates the chemical transformation of the minerals due to the weathering process.

In summary, the events described involve both mechanical and chemical weathering processes, highlighting the complex nature of how weathering affects geological structures. Mechanical weathering involves physical forces breaking down rocks, while chemical weathering involves chemical reactions leading to the alteration or dissolution of minerals.

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Carl von Linné, also known as Carolus Linnaeus, is well known for being the first to organize organisms in a hierarchy of taxonomic ranks. He also created the binomial nomenclature or the binomial system, in which each species is given a name with two words in latin: one related to its genus followed by another one related to the species (a specific name).

Answer:

Scientific Theory

Explanation:

The statement "the characteristics of living things change over time" refers to the concept of biological evolution, which is widely accepted as a scientific theory in the field of biology. In scientific terms, a theory is a well-substantiated explanation of a natural phenomenon that is supported by extensive evidence, experimentation, and scientific consensus. The theory of evolution, proposed by Charles Darwin and further developed over time, provides a comprehensive explanation for the diversity and change in the characteristics of living organisms. It is supported by a vast body of evidence from various scientific disciplines, including genetics, paleontology, comparative anatomy, and molecular biology.

In contrast, scientific laws describe observable patterns or regularities in nature that are often expressed as mathematical equations or principles. Laws, such as Newton's laws of motion or the laws of thermodynamics, describe specific relationships or behaviors in the physical world.

Therefore, the statement about the characteristics of living things changing over time aligns with the theory of evolution, rather than being described by a scientific law.

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Natural selection is demonstrated by the increase in the proportion in dark-winged moths following urbanisation. Disruptive selection supports both extreme phenotypes, as opposed to directional selection.

Selection is referred to as stabilising when environmental factors favour the average version of the trait. When selection pressures favour one end of the trait distribution, directional selection takes place. When the average version of the characteristic is chosen against but neither extreme is altered, selection is disruptive.

When natural selection favours a median phenotype and excludes extreme deviations, stabilising selection reduces the genetic variance of a population. When subjected to outside changes, a population's genetic variation shifts towards a new phenotype, which is known as directional selection.

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Answer:

C // #3

Explanation:

Answer: Simplify the radical by breaking the radic and up into a product of known factors, assuming positive real numbers.

Exact Form: ^3 sqrt (5)

c is the answer

Explanation:

Answer:

I think antibiotics

Explanation:

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Brainliest pls? Have a good day/night

A description of the compost bin that can be used for this experiment is that the bin is a rectangle-shaped container that is made of wood. This container is 150 cm wide and 30 cm deep. It can hold up decaying materials for up to one month.

The compost can be used to store decaying materials that will be used in a nearby farm for manure. Composting is the act of storing up decomposable materials that remain in a container until they are ready for use.

The compost so obtained can be used to improve the fertility of the soil where crops will be planted.

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Explanation:

I'm sorry, but I cannot answer your question as you have not provided any information or context about the environment or rabbit population in question. Please provide more details so I can assist you better.

Answer:

Jovian planets are larger, further from the sun, rotate faster, have more moons, have more rings, are less dense overall and have denser cores than terrestrial planets. Jovian planets also have gaseous atmospheres, with the main gases being hydrogen and helium.

Answer:

RBCs are round red blood cells that easily move through blood vessels and carry oxygen with them to provide cells oxygen. In sickle cell anemia, the shape of the red blood cells is like sickles or crescent moons.

These cells occur due to mutation on the gene that produces this protein which results in rigid, sticky cells that can get stuck in small blood vessels and blocks the flow of blood, oxygen to parts of the body.

Answer:

Adaptive or acquired immunity is that we acquire throughout our lives through vaccines (active), breast milk (passive) or injection of specific artificial or natural antibodies to a certain pathogen (passive).

The two great arms of this immunity are the humoral and the cellular.

The humoral refers to the cytokines and immunomodulatory molecules that are responsible for transmitting fundamental messages between defense cells in order to coordinate the destruction of the pathogen between them.

Instead, cellular immunity speaks about cell lineage such as b, t, tcd4 lymphocytes, natural killers, plasmacytes, etc.

It can be said that the humoral factor is the one that coordinates the pathways and the relationships between the cells of the acquired immunity, both are important because the two need each other for adaptive immunity to work.

Explanation:

Examples of the humoral factor: pro and anti inflammatory cytokines, interleukins, complement chain, antibodies, TNF alpha, beta, etc.

Examples of cellular factor: plasmacyst, b lymphocyte, t lymphocyte, NT lymphocyte

The purpose of Mendel's experiments with dihybrid crosses was to determine whether two traits affect the inheritance of each other. Therefore, the correct answer is D. Mendel wanted to understand how different traits, controlled by separate genes, are inherited and whether they show any relationship or influence each other in the inheritance patterns. This was done by crossing pea plants that differed in two traits, such as seed color and seed texture, and observing the patterns of inheritance in the offspring.

Answer: it’s D

Explanation:

Punnett squares represent the possible genotypes of the offspring according to the parental's gamete combinations. The number of gametes depend on the number of alleles and traits considered.  A) New rows and columns were added to the square because each parent contributed with four types of gametes (4 rows and 4 columns). B) The square would be constructed with eight rows and eight columns.

The Punnett square is a graphic representation that shows the different types of gamete combinations according to the alleles involved in a cross.

Punnett squares are composed of columns and rows in which all the different potential gametes are placed.

The intersection between each column and row suggests a possible genotype among the offspring.

The number of columns and rows will depend on the number of genes involved in the cross. We can use the formula 2ⁿ to figure out how many gametes are possible (2 is the number of alleles, and n is the number of genes). Assuming diallelic genes,

Punnett squares shows the probabilities of getting offspring with different genotypes and their consequent phenotypes.

In the exposed example, we need to compare a punnett square in which we consider only one gene with a punnett square in wich two genes are considered.

From activity 4: Punnett square

Cross: Purple with yellow

Parentals) PP   x   pp

Gametes)   P   P    p    p

Punnett square)

                          P     P

                   p    Pp   Pp

                   p    Pp   Pp

F1) 100% purple kernels, Pp.

Cross: Heterozygous purple kernels from F1

Parentals) Pp   x  Pp

Gametes) P   p    P    p

Punnett square)

                P      p

          P   PP   Pp

          p   Pp   pp

F2) 75% Purple (PP + Pp) and 1/4 yellow kernels (pp)

In these crosses, we only consider one diallelic gene that expresses complete dominance.

Punnett squares are composed of two columns and two rows in which both types of gametes are located.

Now, we need to consider two genes (P and S), which means four alleles are involved and four type of gametes are possible.

Cross: Between two dihybrid individuals

Parentals)        PpSs         x           PpSs

Gametes) PS, Ps, pS, ps        PS, Ps, pS, ps

Punnett square)    

                           PS          Ps          pS          ps

               PS     PPSS     PPSs      PpSS     PpSs

               Ps      PPSs     PPss      PpSs      Ppss

               pS     PpSS     PpSs      ppSS      ppSs

               ps     PpSs      Ppss       ppSs      ppss

F1)

Now, we need to compare Punnett squares from activity 4 (one trait) with this new Punnett square (two traits), and answer the questions,

A. How did you need to change the punnet square to consider two traits?

Since we consider two traits, we need to add rows and columns according to the possible gametes. The new punnett square must have four columns and four rows (2ⁿ = 2² = 4).

Remember that all the possible gametes depend on the number of possible allelic combinations.

B. How would you need to change the punnet square if you were to consider three traits?

If we consider three traits, we need to construct a Punnett square with eight columns and eight rows (2ⁿ = 2³ = 8).

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Answer:

Prophase? :3

Explanation:

:3

Answer:

a niche

Explanation:

Answer: Niche

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Answer:

A

Explanation:

Population density is usually the number of subjects over the unit of area measurements. Thus, in this scenario, we set up the proportion of 40 turtles for every 5km^2 which can be simplified to 8 turtles every 1 km^2 which is answer A.

If there are 40 turtles in a 5 km2 area, 8 turtles per km2 is the population density.

A measure of population density is population per unit of land area. It is for the most part applied to people, yet at times to other living organic entities as well. It is a critical topographical term.

Populace thickness considers wide examination of settlement power across geographic regions. The number of people per square mile of land area is typically how population density is measured in the United States.

The average number of people in a population per unit of area or volume is known as the population density. For instance, a populace of 100 bugs that live in a space of 100 squar e meter s has a thickness of 1 bug for each square meter.

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Answer:

B

No explanation required

Immunity occurs when the person is exposed to a live pathogen, develops the disease, and becomes immune as a result of the primary immune response.

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The DNA and other proteins of the cell may be harmed if the hydrogen peroxide concentrations rise too high.

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oxidation happens when there is loss of electrons

The 4 early concepts of heredity are Blending inheritance, inheritance of acquired characteristics, preformationism, and particulate inheritance.

Here are 4 early concepts of heredity, along with a brief description and classification as either correct or incorrect:

Blending Inheritance: This concept suggests that the traits of offspring are a blend of the traits of their parents. For example, if a tall man and a short woman have a child, the child will be of medium height. This concept is incorrect, as it doesn't explain how traits can reappear in future generations after being absent in previous generations.

Inheritance of Acquired Characteristics: This concept suggests that organisms can pass on traits that they acquire during their lifetime to their offspring. For example, if a giraffe stretches its neck to reach leaves, its offspring will inherit a longer neck. This concept is incorrect, as there is no evidence that acquired traits can be passed on to offspring.

Preformationism: This concept suggests that organisms develop from miniature versions of themselves that already contain all the traits they will have as adults. For example, preformationists believed that humans developed from tiny, fully-formed humans. This concept is incorrect, as it doesn't explain how traits can vary from one generation to the next.

Particulate Inheritance: This concept suggests that traits are determined by discrete units called "particles" that are passed on from parents to offspring. These particles are now known as genes. This concept is correct and forms the basis of modern genetics. It explains how traits can be passed down from one generation to the next and how new variations can arise through the random assortment and recombination of genes.

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When the carbohydrate cellobiose is digested into two glucose monosaccharide sugars (by cellulase in certain fungal species), the resulting glucose monomers are properly defined as the products

The correct answer is option E.

When the carbohydrate cellobiose is digested into two glucose monosaccharide sugars by cellulase in certain fungal species, the resulting glucose monomers are properly defined as the products.

In a chemical reaction, reactants are the starting materials or substances that undergo a change, while products are the resulting substances formed after the reaction. In this case, cellobiose is the substrate, which is the molecule that undergoes the enzymatic reaction. Cellulase is the enzyme responsible for catalyzing the digestion of cellobiose into glucose monomers.

The enzyme cellulase acts as a catalyst in the reaction, facilitating the breakdown of cellobiose into glucose. Catalysts are substances that increase the rate of a chemical reaction without being consumed or permanently changed themselves. However, in the context of the given question, the glucose monomers produced are the final result or product of the enzymatic digestion process.

Therefore, in the digestion of cellobiose, the resulting glucose monomers are correctly identified as the products (option E).

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Answer:

A. independent

Explanation:

Answer:

A  It shows that forms of life existed on Earth at least 3.5 billion years ago.

Explanation:

AIt indicates that forms of life existed on Earth at least 3.5 billion years ago. It indicates the exact cause of structural and behavioral adaptations of organisms.

A new study in the Proceedings of the National Academy of Sciences that uses the latest techniques to date the most aged remains available, confirming the existence of bacteria and microbes nearly 3.5 billion years ago, possibly living on a planet without oxygen.

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