A scientist is able to test the effect of

A true-breeding plant is one that produces offspring identical to itself in terms of physical traits when self-pollinated, due to being homozygous for certain alleles.

The best definition of a true-breeding plant is one that, when it self-pollinates, will always produce offspring with the same physical traits or characteristics as the parent plant. These plants are considered to be homozygous for the traits of interest, meaning that they carry two identical alleles at their respective gene locus. Because of their genetic uniformity, true-breeding plants are fundamental in genetic research and ensure consistency in the inheritance of traits. For instance, when Gregor Mendel conducted his experiments, he used true-breeding pea plants to study how traits were passed from one generation to the next, which helped him to avoid any unexpected traits that could arise from plants that were not true breeding.

Artificial, i think ‍

Answer: Less ultraviolet light and more oxygen.

Explanation:

The early earth condition were different from now. There was more ultraviolet light as there was no ozone layer during the early earth conditions.

The oxygen levels at the time of early earth was also not high but after the evolution of cyanobacteria the level of oxygen rised very rapidly.

These conditions does not allow the formation of organic molecules from inorganic molecules.

The correct answer is option B, Nonvascular plants

Non Vascular plants lacks true leaves, seeds, flowers and vascular tissues (which includes Xylem and Phloem). They come in the category of bryophytes which are extremely small and are in habituation of absorbing water and minerals through their hair like structure called as rhizoids (instead of roots) rather than transporting water and food through Xylem and Phloem tissues. They usually survive in moist places to compensate for the absence of vascular tissues.  

the four earth spheres are atmosphere lithosphere hydrosphere and biosphere ...... therefore  mesosphere is NOT part of it

The correct option would be the Mesosphere.

The earth has 4 systems, otherwise known as spheres. These include:

Hence, the only option that is not part of the four spheres of the earth is the Mesosphere.

More on the earth's sphere here: https://brainly.com/question/24215268

The site of calcium regulation is what differs from a mechanism of contraction in smooth muscle from skeletal muscle. One of the important functions of skeletal muscle contraction is production of heat and where calcium seemingly acts to remove the blocking action of tropomyosin.

Answer:

the site of calcium regulation differs

Explanation:

The major monosaccharide in the human body is glucose, which serves as the primary source of energy for cells and is crucial in the production of ATP.

The major monosaccharide found in the human body is glucose. Monosaccharides are the simplest form of carbohydrates, and glucose is the primary source of energy for the body's cells. It is carried through the bloodstream and is used by cells to perform their functions. The liver and muscles store excess glucose in the form of glycogen, which can be converted back to glucose when needed. Glucose is also a crucial component in the production of ATP, the molecule that serves as the main energy event in the human body.

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Answer:

The correct answer is option C.

Explanation:

The erosion or the disintegrations of the building material or rock by the chemical reactions instead of a mechanical process termed as chemical weathering. Oxygen present in the air reacts with iron content present in rocks, causing them to react with oxygen in the air and form an iron oxide that can leach in rock and make it rusty looking. This change in color is completely a chemical change that is occurring. There is also the erosion of rock that takes place in this process.

Thus, the correct answer is option C.

Other than the ability of some cancer cells to divide uncontrollably, the lack of appropriate cell death can logically result in tumor. When there is an occurrence of lack of appropriate cell death, this can lead to inappropriate tissue growth and tumor development. This is also characterized by altered mitochondrial metabolism. When there is a centrality of the dysfunction of the mitochondria in our system, there is surprisingly a wide range of major human diseases slowly becoming recognized. This brings along with it the prospect of novel therapeutic approaches to treat a multitude of unpleasant and pervasive diseases. We can therefore say that the there is a large and vital contribution of mitochondria in the maintenance of the normal cells in the body of an individual. 

Antisemitism is aggression to, bias, or discernment counter to the Jews. An individual who grips such points is termed as an anti-Semite. Antisemitism is usually measured to be a kind of racism. It is not correct to say this is anti-Semitic because Jesus displays remarkable respect for the authority of the Jewish leaders and the Law they were assigned to support.

When the rabbit caught his head in a fan means that it took ears off his own life. It may be related to a person who might possibly living by his/her own means. That person may be independent in his own way to the point that he/she may not listen to the opinion of others.

The Central Vacuole, because it  functions to maintain the proper pressure within the plant cells to provide structure and support for the growing plant.