Answer:
option 2 and 3 are seems to be correct.
Explanation:
according to our studies the options and 3 are seems to bee correct because the first cell was created by nature not by man or any other organism and the term spontaneously also look to be true. so my answer is that options 2 and 3 are correct.
inheritance research
forensic science
study of cork bark
The discovery of mitochondria (mtDNA) had no effect on the study of cork bark. Thus, the correct option is D.
Mitochondria may be defined as a rod-shaped cell organelle found in the cytoplasm of the cell. It is a double membrane-bound cell organelle that is known as the powerhouse of the cell.
This is because the energy required for various metabolic activities is released by the mitochondria in the form of ATP. It also helps in the cellular respiration and formation of the cell.
The origin of mitochondria and chloroplast is described by the endosymbiotic theory. Based on the evolutionary aspect, mitochondria and chloroplast both originated due to endosymbiotic theory.
Inheritance research and forensic science also deal with the discovery of mitochondria. While the corb bark of the plants generally contains dead cells with no nucleus and other membrane-bound cells. So, it does not deal with the discovery of mitochondria.
Therefore, the discovery of mitochondria (mtDNA) had no effect on the study of cork bark. Thus, the correct option is D.
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The study of cork bark had no effect on the mitochondrial DNA (mtDNA).
Further Explanation:
Mitochondria are predominantly present in the eukaryotes. They are not present in single-cell organelles such as RBC (which lacks nucleus). They consist of very small circular mitochondrial DNA. It passes the genetic information from one parent to a new offspring. The DNA of the cytoplasmic organelles is inherited in a non-Mendelian manner. It is generally accepted that mostly in animal cells, mitochondrial DNA is passed on solely by the oocyte of the mitochondria.
Endosymbiotic theory describes the origin of chloroplasts and mitochondria.On the evolutionary basis, mitochondria and chloroplast both originated due to endosymbiotic theory. Barkand corks are an outer component of plants.The bark is mainly made up of cork cambium, cork, cortex, and phelloderm. Cork barks are dead cells of the plant, and their mitochondrial DNA is not involved in metabolic processes.
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Answer Details:
Grade: High School
Subjects: Biology
Chapter: Cell organelle
Keywords:
Mitochondrial DNA, chloroplast, cork, barks, non-Mendelian, oocytes, mitochondria, circular, single-cell, animal cell, RBC, nucleus.
Animals contribute to soil formation through decomposition of organic material. This statement is TRUE.
learn more about soil formation here: brainly.com/question/1593669
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The correct answer is - True.
The animals are contributing a lot to the formation of soil, and they do this in multiple ways. One of those ways is the decomposition of the dead animals, which gives the soil a nice organic material. Also, the animals manage to increase the organic material in the soil and fertilize it through their feces, as well as through their saliva that can be very useful for the soil and the plants from some types of animals, like the goat.
B. their digestive structures.
C. their cellular structures.
D. how they reproduce.
help;)))))))
Answer:
A major problem in using geothermal power is corrosion.
Ans. (D). if the egg is not fertilized.
The major female sex hormones (estrogen and progesterone) are released by ovaries. During ovulation, ovary releases female gametes or eggs. After the release of eggs, corpus luteum is formed in the ovary, which releases both the female hormones (estrogen and progesterone) and prepare uterine lining for potential pregnancy.
When fertilization occurs, corpus luteum continuously secrets female hormones and allows implantation. However, if the egg is not fertilized, the corpus luteum starts to degenerate and secretion of female hormones stops.
Thus, the correct answer is option (D).
Answer:
The muscular system
Explanation:
The muscular system is a set of muscles that can be controlled voluntarily by a living organism (skeletal muscles) Its main function is to achieve mobility, an action that takes place when electrical stimuli from the nervous system cause the contraction of muscle fibers . Muscles that contract automatically such as heart muscle or smooth muscles are not usually considered part of the muscular system. The whole skeletal musculature corresponds to approximately 40% of the weight of an adult man. The sum of the muscular system plus the bone system formed by the bones gives rise to the musculoskeletal system.
The muscles of the chest, such as the diaphragm, play a crucial role in breathing by changing the size of the thoracic cavity. This relates to the muscle rules as the diaphragm contracts and relaxes to facilitate inhaling and exhaling.
The muscles of the chest play a key role in breathing by changing the size of the thoracic cavity. This allows for the expansion and contraction of the lungs. One example of a chest muscle is the diaphragm, which is dome-shaped and separates the chest from the abdominal cavity.
The structure and function of the diaphragm relate to the muscle rules because it is a skeletal muscle that contracts and relaxes to facilitate breathing. The diaphragm contracts when you inhale, flattening and enlarging the thoracic cavity, while it relaxes when you exhale, allowing the chest to fall.
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