Answer:
The continuity of life from one cell to another has its foundation in the reproduction of cells by way of the cell cycle. The cell cycle is an orderly sequence of events in the life of a cell from the division of a single parent cell to produce two new daughter cells, to the subsequent division of those daughter cells. The mechanisms involved in the cell cycle are highly conserved across eukaryotes. Organisms as diverse as protists, plants, and animals employ similar steps.
Genomic DNA
Before discussing the steps a cell undertakes to replicate, a deeper understanding of the structure and function of a cell’s genetic information is necessary. A cell’s complete complement of DNA is called its genome. In prokaryotes, the genome is composed of a single, double-stranded DNA molecule in the form of a loop or circle. The region in the cell containing this genetic material is called a nucleoid. Some prokaryotes also have smaller loops of DNA called plasmids that are not essential for normal growth.
In eukaryotes, the genome comprises several double-stranded, linear DNA molecules (Figure 6.2) bound with proteins to form complexes called chromosomes. Each species of eukaryote has a characteristic number of chromosomes in the nuclei of its cells. Human body cells (somatic cells) have 46 chromosomes. A somatic cell contains two matched sets of chromosomes, a configuration known as diploid. The letter n is used to represent a single set of chromosomes; therefore a diploid organism is designated 2n. Human cells that contain one set of 23 chromosomes are called gametes, or sex cells; these eggs and sperm are designated n, or haploid.
Explanation:
<h2><u><em>
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Cc and Cc because in a punnet square there would be one homozygous (CC) brown mouse two heterozygous (Cc) brown mice and one homozygous (cc) white mouse
The integumentary, immune lymph and endocrine system protects us from infectious microorganisms which is different from the the way your nervous, skeletal, and muscle systems does.
<h3>What are the protective systems of the body?</h3>
The protective systems of the body are those body system that helps protect the body against disease causing microorganisms. They include the following:
- Nervous: This system helps establish a network of communication between the various cells of the body.
- Skeletal: This system provides support through the bones for movement.
- Muscle systems: This system protects the vital organs of the body by absorbing shock and reducing friction in the joints.
There are other systems the protects the body which include:
- The integumentary system: This serves as a protective layer for the whole body.
- Immune system: This is made up of immune cells that help fight foreign bodies.
- Lymph: This is contains lymphocytes that fights disease causing microorganisms.
- Endocrine system: this contains hormones that control almost all body process.
Learn more about immune system here:
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Answer:C
Explanation: The reason why i picked C is because oxygen is the gas that is taken in the human body for cells to make energy in the mitochondria. Carbon dioxide and energy are the ones that are taken out, and are not in need.
