What is the dependent variable in her experiment?

time (days)

duckweed genetics

amount of duckweed

different water pH levels

The best description of cell division that takes place through the process of meiosis is when the humans begin to produce sperms. Thus, the correct option is C.

Meiosis is a type of cell division. It is also called as reductional division. Meiosis occurs in the sex cells. These result into production of gametes in the organisms which reproduce through sexual mode of reproduction.

Meiosis is divided into two divisions which are Meiosis I and Meiosis II. These results into four daughter cells which contain haploid or half set of chromosomes in comparison to the parent cells. The gametes produced from meiosis undergo fusion to produce diploid zygote (2n).

Therefore, the correct option is C.

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An RNA type known as messenger RNA is translated from DNA to transmit a message. Single-stranded RNAs of the kind known as messenger RNA, or mRNA, are used to make proteins.

mRNA is created during transcription from a DNA template. RNA polymerase creates RNA from DNA that is functional for either messenger RNA (mRNA), which codes for proteins, or non-coding DNA (RNA genes). mRNA is produced during transcription, when the gene is transformed into main transcript mRNA by the enzyme RNA polymerase (also known as pre-mRNA). Introns, which are sections that won't ultimately code for the final amino acid sequence, are often still present in this pre-mRNA. These are eliminated during RNA splicing, leaving just exons, which are the areas that will actually encode the protein.

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A homozygous recessive female is crossed with a heterozygous male. 25% of their offspring will be brown.

An organism with one dominant allele and one recessive allele is said to have a heterozygous genotype. In our example, this genotype is written Bb. Finally, the genotype of an organism with two recessive alleles is called homozygous recessive.

In a heterozygous genotype, the dominant allele overrules the recessive one. Therefore, the dominant trait will be expressed. The recessive trait won't show, but you're still a carrier.

Cystic fibrosis is one example of a homozygous recessive disease. The broken gene is involved in transporting chloride, something all cells need to do.

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There are four areas of specialty within the field of biomedical engineering namely biomechanics, systems physiology, bioinstrumentation and rehabilitation engineering.

Biomedical engineering which is also known as the medical engineering basically involves the application of engineering principles as well as the design concepts in the field of healthcare. There are four major areas of specialty in the field of biomedical engineering which are biomechanics, systems physiology, bioinstrumentation and rehabilitation engineering.

Biomechanics involves application of mechanics to biological or medical problems. Systems physiology involves the use of engineering strategies to gain an integrated understanding of the functioning in living organisms. Bioinstrumentation involves application of measurement and electronics principles to develop devices that can be used in diagnosis and treatment of disease. Rehabilitation engineering focuses on improving the quality of life for individuals which have physical impairments.

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The proportion of test scores that are higher than Antoaneta score is 0.9332.

Antoaneta scored 51 points on the test with a normal average of 60 points.

Antoaneta's score is 51 − 60 = − 9 relative to the average.

Standard deviations are relative to the mean: -9/6 = -1.5

This is Antoaneta's z-score.

To find the value of the proportion of exams above the Z-score of −1.5, look at the Z-table.

Z-score −1.5 = 0.0668, the test score is below Antoaneta's score

0.0668, the test score is below Antoaneta's score

If 0.0668 the test score is below the Antoaneta score

→ 1 - 0.668 = 0.9332

Test score 0.9332, meaning that the score is 9.3% higher than Antoaneta’s.

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Answer:

  0.2304

Explanation:

You want the probability that exactly 4 of 7 randomly selected baby elk survive to adulthood, given that the probability of any individual surviving to adulthood is 44%.

The probability that exactly 4 reach adulthood is ...

  7C4·(0.44^4)·(1 -0.44)^(7-4) ≈ 0.2304

The probability that exactly 4 of 7 baby elk survive to adulthood is about 0.2304.

The statement that accurately identifies the order of tissues pictured from left to right in the microscopic image is Connective tissues, smooth muscle, elastic fibers.

Option D is correct.

Connective tissues are described as tissues that supports, protects, and gives structure to other tissues and organs in the body.

Connective tissue also known to stores fat, they also helps move nutrients and other substances between tissues and organs, and helps repair damaged tissue.

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Besides forming canyons, moving water can shape the earth by leading to erosion and weathering of rock particles.

This is referred to as the breaking down or dissolving of rocks and minerals on Earths surface through various agents such as wind , water etc. Erosion on the other hand is the process in which earthen materials are worn away and transported by natural forces such as water etc.

The moving water also causes erosion, which occurs when pieces of earth that have been weathered and worn away are moved to another place and is the reason why they were chosen as the correct choices.

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Hence the correct answer is Transgenic organisms.

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Since simple diffusion is responsible for the actual gas exchange, oxygen and carbon dioxide can pass across membranes without the use of energy.

Diffusion has a major role in gas exchange during breathing. A concentration gradient drives the transport mechanism of diffusion. The concentration of gas molecules shifts from one area to another.

diffusive facilitation Others require assistance to pass the plasma membrane's hydrophobic core, unlike some molecules, like as carbon dioxide and oxygen, which can diffuse through it on their own. When a diffusion process is assisted, membrane proteins help molecules move across the plasma membrane.

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Answer: important by bringing and growing crops that yield more, stand better, or resist pests and disease more effectively

Explanation:

Answer: Look below

Explanation: Selective breeding is important because it lets the population of that organism have a variety of offspring, increasing chances of surviving. When a person uses selective breeding, it leads them to have the ability to thrive in a sustainable production system. I hope this helped!

Tropism is the term used to describe the directional movement of plants, whereas taxis is used to describe the directional movements of animals in reaction to a stimulus.

Nastisms, also known as nastic motions, are typically found in plants and are non-directional reactions to stimuli (such as temperature, humidity, and light irradiance). Movement in plants can be caused by changes in turgor or growth, hence K+ ion concentration often regulates such movement in plants.

Tropism is defined as the directional movement of plants, whereas taxis is defined as the directional movement of animals in response to a stimulus. The most prevalent taxi types are chemotaxis and phototaxis, which react to light (in response to chemicals).

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Answer:

A. Chemical

Explanation:

Answer: I think the answer is A

Explanation: pls forgive me if I am wrong ty

-♥ Roxy ♥

Answer: I believe  The conditions for forming fossils are rare.

Explanation: hope this helps

The social science that studies society and social behavior is called sociology.

Sociology is defined as the scientific study of human social behavior, its relationships, and its institutions. This social science covers a wide range of topics, which includes social organization, social stratification, social interaction, social change, and collective behavior.

Sociologists, people who study sociology, use various ways or methods to study society, including quantitative and qualitative research, and use theories and concepts to understand and interpret social phenomena. It also, often uses other disciplines such as anthropology, economics, political science, psychology and history to understand the complexity of social phenomena.

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Answer: The social science that studies society and social behavior is called sociology.Sociology is defined as the scientific study of human social behavior, its relationships, and its institutions. This social science covers a wide range of topics, which includes social organization, social stratification, social interaction, social change, and collective behavior.Sociologists, people who study sociology, use various ways or methods to study society, including quantitative and qualitative research, and use theories and concepts to understand and interpret social phenomena. It also, often uses other disciplines such as anthropology, economics, political science, psychology and history to understand the complexity of social phenomena.

Explanation:

The pattern of lunar stages endures near a month, at 29.5 days, a period known as the synodic month. In this manner, the full moon happens ordinarily once each scheduled month, be that as it may, when the full moon occurs inside the initial two days of an allowed month.

Indeed. The Moon requires around one month to circle Earth (27.3 days to finish a transformation, however, 29.5 days to change from New Moon to New Moon). As the Moon finishes each 27.3-day circle around Earth, both Earth and the Moon are moving around the Sun.

This is viewed as the underlying or the principal day of the moon's stage. Following fifteen days or so we see the whole moon and consequently, we call it a full moon day. As we currently realize that the moon goes in a circle at a uniform speed we can presume that following fifteen days from the full moon day we will again have the new moon day.

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Answer:

the backbone of a DNA is made of a sugar and a phosphate molecule

This is the sole time the cell has to transport DNA segments between the homologous pair since prophase I is the only time when the complex that momentarily forms between homologous chromosomes is present.

In meiosis I, crossing over takes place during prophase I. It entails the exchange of genes across homologous non-sister chromatids, enabling the admixture of new, recombinant chromosomes with both mother and paternal genetic material.

Each daughter cell will contain 23 chromosomes, or half of the original 46 chromosomes. There are two sister chromatids on each chromosome. The daughter cells now enter meiosis II, the third and last stage of meiosis. Following meiosis..

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Answer:

  D. Using tools to measure radiation levels in space

Explanation:

You want to identify the activity that is more likely to be the work of a research scientist rather than an engineer.

The task of an engineer is to apply the laws of physics and the properties of materials to the creation of useful artifacts. Such artifacts may include space suits, fireproof materials, or food packaging.

The task of a research scientist is to observe the world and the interaction of its parts. The purpose is to come to an understanding that allows prediction of future behavior.

Of the choices offered, the most likely task of a research scientist is ...

  using tools to measure radiation levels in space.

Answer: microbiologist

Explanation:

Answer:

6 examoles that waves accur everyday life…

These are 6 examoles that waves accur in everyday life

Palaeontologists are scientists who study the fossilized remains of plants and animals that lived long ago.

The study of fossils:

Palaeontologists have discovered fossil remains of cetaceans with skulls different from modern whales, as well as a more ancient cetacean with hind legs and a pelvis. Although the pelvis wasn't fused to the backbone and the cetacean was able to swim, its ankle bones were unique to the order of biogeography animals like bison, pigs, hippos, and deer. This indicates that evolutionary change is driven in part by geographical change, as these animals tend to be found in the same regions.

What are Fossils?

Fossils basically are the remains or traces of animals, plants, and other organisms that lived in the distant past. They can come in the form of bones, teeth, shells, footprints, or even impressions in sediment. Fossils provide valuable evidence about the history of life on Earth.

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Answer:

The iris

Explanation:

Hope it was helpful:)

Right to farm laws in the United States deny nuisance lawsuits against farmers who use accepted and standard farming practices and have been in prior operation even if these practices harm or bother adjacent property owners or the general public.

Right-to-farm laws

The United States' right to farm rules forbid nuisance lawsuits against farmers who follow established farming practices, even if they cause harm or annoyance to nearby property owners or the general public.

Noise, scents, visual clutter, and hazardous constructions can all be agricultural annoyances.

All 50 states have a Right to Farm law in some form.

Many of these laws were created after 1980 as a result of the decline in farmland availability and challenges posed by private and public nuisance actions that make farming less likely.

The rules are intended to lessen the threat that nuisance lawsuits and burdensome state and local government regulation pose to common farming operations.

Unlike traditional agricultural preservation measures, which are intended to protect farmland itself,

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The type of genetic mutation is responsible for the nonfunctional or functioning of the respective proteins. Most nonsense mutations result in nonfunctional proteins.

A genetic mutation may be defined as the process of an alteration in the nucleic acid sequence of the genome of an organism, virus, or extrachromosomal DNA. It can result from DNA copying mistakes made during cell division, exposure to ionizing agents like UV radiations, etc.

Nonsense mutations occur when a premature nonsense or stop codon is introduced in the DNA sequence. When the mutated sequence is translated into a protein, the resulting protein is incomplete and shorter than normal.

Gene variants prevent one or more proteins from working properly. By changing a gene's instructions for making a protein, a variant can cause a protein to malfunction or not be produced at all.

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Composite volcanoes have steep sides, are towering, and may reach heights of up to 10,000 feet. They are constructed from alternating layers of cinders, volcanic ash, and lava flows.

Large volcanoes (tens of thousands of feet or meters tall) that are made up mostly of lava flows, pyroclastic deposits, mudflow (lahar) deposits, and lava domes are known as composite cones. Composite volcanoes frequently erupt during extended epochs (tens to hundreds of thousands of years).

Composite volcanoes have steep sides, are towering, and may reach heights of up to 10,000 feet. They are constructed from alternating layers of cinders, volcanic ash, and lava flows. the Japanese volcano Mount Fuji, the Californian Mount Shasta, and the American Mount

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Natural selection leads to adaptation, that is, to a population dominated by organisms that are anatomically, behaviorally, and physiologically well suited to survive and reproduce in a specific environment.

Mitosis is crucial for life as it replaces the worn out cells in the body and provides new cells for growth.

Mitosis is basically a kind of cell division which involves one cell, the mother cell, divides in order to produce two new cells which are known as the daughters cells which are genetically identical to itself. When we look at the cell cycle, mitosis is the part of the process of division in which the DNA present in the cell's nucleus is split to form two equal sets of chromosomes.

Since mitosis allows the DNA to split into two equal sets, it helps in ensuring equal division of chromosomes during the formation of daughter cells. The cells in the body get worn out and are replaced by the help of mitosis division. Mitosis results in the formation of two new daughter cells and hence provides new cells for growth.

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There are many different job paths you might choose with this degree, but biology is a prerequisite for careers in the science and health sectors.

Relevant experience demonstrates your dedication to the field and helps you gain practical skills in a competitive employment market. It also gives you the chance to network with other professionals.

Profession experience might provide you a helpful understanding of the work if you're undecided of the area of biology you want to pursue.

You can qualify for a scholarship or bursary to help pay for your year-long industrial placement if your biology degree program includes one.

Therefore, There are many different job paths you might choose with this degree, but biology is a prerequisite for careers in the science and health sectors.

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