On the graphs, the dashed line represents the original population, and the solid line represents the population after natural selection has taken place. A population of snails is going through disruptive selection as it relates to their shell patterns. Which graph represents the population? A B C D

Answer:

Explanation:

disadvantages:

Models do not behave exactly like the things they represent. Accuracy—In order to make models simplistic enough to communicate ideas some accuracy is lost. For example, ball and stick models of atoms do not show all the details that scientists know about the structure of the atom.

advantages:

When students are engaged in scientific modeling, they are able to notice patterns and develop and revise representations that become useful models to predict and explain--making their own scientific knowledge stronger, helping them to think critically, and helping them know more about the nature of science.

The advantage of a scientific model is it allows complicated processes to be predicted and simplified. A model's drawback is that it could be deceptive and open to numerous interpretations.

The advantages are:

The disadvantages are :

Thus, the advantage and disadvantages are written above.

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Answer: A. All were tall.

Explanation:

True-breeding plants are plants with completely dominant or recessive genotypes (TT (tall) and tt (short), for this example). He crossed one tall plant with genotype TT with a short plant with genotype tt. Set up a Punnett square with parents TT and tt.

All offspring will have the genotype Tt. T is dominant, so only one copy of it is needed for a plant to be tall. All of the offspring have one copy of T, so they're all tall.

Answer:d

Explanation:

it is right

Answer:

Uracil

Explanation:

Thymine would never be part of an mRNA strand.thus, option A is correct.

Messenger RNA (mRNA), molecule in cells that carries codes from the DNA in the nucleus to the sites of protein synthesis in the cytoplasm (the ribosomes).

It was also known that there are only four nucleotides in mRNA: adenine (A), uracil (U), guanine (G), and cytosine (C). Same three nucleotide base is also present in the DNA except thymine. Thymine is replaced with uracil in case of RNA. thus option A is correct.

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Answer:

Crossing over increases the genetic variation  

Errors in crossover formation result in chromosomal rearrangements (duplications and deletions) and may also cause chromosome nondisjunction

Explanation:

Crossing over, also known as recombination, refers to the exchange of genetic material (DNA) between non-sister chromatids of homologous chromosomes during meiosis. Crossing over increases the genetic variation of the resulting gametes, allowing different genetic combinations to be passed from parents to offspring. Unequal crossing over is a type of error associated with chromosomal duplication and/or deletion events. Unequal crossing over occurs when homologous sequences are not paired precisely. Moreover, errors in crossing over may also cause chromosome nondisjunction, thereby leading to aneuploidies.

Answer:

Cystic Fibrosis is a chronic, genetic condition that causes patients to produce thick and sticky mucus, inhibiting their respiratory, digestive, and reproductive systems. Like Thalassemia, the disease is commonly inherited at a 25 percent rate when both parents have the Cystic Fibrosis gene.

Answer:

dna replication

Explanation:

Answer B

Answer:

I cant see the pic??

Explanation:

Answer:

Explanation: investment in offspring by the parent that increases the offspring's chances of surviving and hence reproductive success at the expense of the parent's ability to invest in other offspring.

Answer:

Venus

Explanation:

The closer a planet is to the Sun the faster it moves because the Sun can exert more gravitational force on it. Venus is the second closest planet to the Sun therefore the fastest out of the options.

Its Venus.

It is closer to the sun than the other planets on here.

Answer: Primary succession: Glaciers, bare rock, lichen

Secondary succession: Wildfires, volcanoes, hurricanes, deforestation

Explanation:

Succession in ecology can be defined as gradual changes that occur in the biotic community in an ecosystem with respect to the changes that occur in the abiotic components of the environment. Primary succession initiate in an land which is not previously occupied by any living species. These includes the changes that occur at the primitive level on the land. That is the formation of glacier from the ice, bare rock will undergo withering and disintegration to form the soil, lichen are the biological composite organisms formed by the mutual association of algae and fungi. These lichens act upon the rocks to cause its withering by releasing the chemicals causing disintegration of the rocks.

Secondary succession occurs at those regions which have been colonized by the living species and get disturbed due to human oriented or natural disasters. Wildfires can be set up naturally, through volcanic eruption, or can be human induced can clear up the forests but some remains of seeds and deep rooted roots can help in growth of new plants which will again initiate the succession, again volcanoes, and hurricanes, are also natural hazards which can affect the population of species in an ecosystem. Deforestation is a human oriented practice in which vegetation cover or forests are clear cut. This will also cause loss of biodiversity.

Answer:

Biome

Explanation:

Answer:

Watson and Crick

Explanation:

Answer: 30

Explanation:

Answer:

Axis - B

Rotation - E

Revolution - D

Latitude - A

Gravity - C

Explanation:

The axis is the line that a body spins on. The axis will line up with the north and south poles. For Earth, the axis is tilted, which is why seasons exist.

The definition of rotation is "the action of rotating around an axis or center." So, rotation is the spinning of a body on its axis. On Earth, one rotation is equal to one day.

Revolutions are when a body spins around another. For Earth, one revolution around the sun is one year

Latitudes are invisible lines that separate the world into degrees from North to South. They are also called parallels.

Gravity is the force that keeps things together. Large masses have gravity that attract other masses.

Answer: During the long voyage, Darwin made many observations that helped him form his theory of evolution. For example: He visited tropical rainforests and other new habitats where he saw many plants and animals he had never seen before (see Figure below). This impressed him with the great diversity of life.

Explanation:

Answer:

C

Explanation:

it is chemical, not physical

Answer:

amylase, sucrase, lactase, or maltase.

Explanation:

this is because of proteins are always broken down by the the enzymes pepsin and peptidase, and by hydrochloric acid.

Answer:

The ventricles are thick walled; to pump blood to the lungs and the rest of the body. The left ventricle has thicker wall to create more pressure because it pumps blood for longer distances round the body; while the right ventricle pumps blood to the lungs close to the heart.

Answer: Invasive species can harm both the natural resources in an ecosystem as well as threaten human use of these resources. ... Invasive species are capable of causing extinctions of native plants and animals, reducing biodiversity, competing with native organisms for limited resources, and altering habitats.

Explanation:

Answer:

I would put unique but since that's not a choice, probably different

Explanation:

Answer:

A. Different

Explanation:

In sexual reproduction, the offspring inherits traits from both parents. They are not an exact copy of either but have traits from both. Hope it helps :)

Answer:

Implantation is a process in which a developing embryo, moving as a blastocyst through a uterus, makes contact with the uterine wall and remains attached to it until birth. The lining of the uterus (endometrium) prepares for the developing blastocyst to attach to it via many internal changes.

Explanation:

☁️ Answer ☁️

Implantation

1. Implantation is the process where the embryo attaches to the uterine lining (endometrium) and embeds itself into the tissue. This happens around Day 5 or so of the embryo’s development.

Link: https://www.remembryo.com/embryo-implantation/#:~:text=Implantation%20is%20the%20process%20where%20the%20embryo%20attaches,Day%205%20or%20so%20of%20the%20embryo’s%20development.

2. Implantation is a process in which a developing embryo, moving as a blastocyst through a uterus, makes contact with the uterine wall and remains attached to it until birth. The lining of the uterus (endometrium) prepares for the developing blastocyst to attach to it via many internal changes. Without these changes implantation will not occur, and the embryo sloughs off during menstruation.

Link: https://embryo.asu.edu/pages/process-implantation-embryos-primates

Hope it helps.

Have a nice day noona/hyung.

grassses -- Termite -- Monkey -- Eagle

Answer:

The difference between traditional PCR and qPCR (Real-time PCR) is:

b. In traditional PCR, the presence or absences of a DNA sequence is analyzed upon reaction completion whereas qPCR monitors DNA amplification as the reaction progresses

Explanation:

Real-time PCR (qPCR) is an advanced tool for analyzing RNA and DNA.  With Traditional PCR detection occurs at the end-point of the reaction, while with Real-time PCR, detection of the RNA and DNA sequencing is detected as the reaction is occurring.  The advantages of the qPCR over the traditional PCR include higher precision and resolution,  and increased dynamic range and sensitivity.

Polymerase Chain Reaction (PCR) is a widely-used Biology tool to rapidly replicate millions of copies of a specific DNA sample.

Answer:

Lack of food and water

Explanation:

Answer:

Explanation:

In the water cycle, evaporation occurs when sunlight warms the surface of the water. The heat from the sun makes the water molecules move faster and faster, until they move so fast they escape as a gas. Once evaporated, a molecule of water vapor spends about ten days in the air.

Answer:

B. Any two objects in the universe attract each other with a force called gravity.

Explanation:

Science can be defined as a branch of intellectual and practical study which systematically observe a body of fact in relation to the structure and behavior of non-living and living organisms (animals, plants and humans) in the natural world through experiments.

Hence, the statement which best describes a scientific law is, any two objects in the universe attract each other with a force called gravity.

Gravity is considered to be a universal force of attraction which acts between all objects that has both mass, energy and occupy space. Therefore, it acts in such a way as to bring objects together.

Additionally, the gravity of earth makes it possible for all physical objects to possess weight.

Answer:

Yeasts

mold

mushrooms

Explanation: