Answer:
The seeds collected from the first generation monohybrids are called F1. The first generation is called P generation or parental generation. The seeds collected from the first generation (P generation) is called F1 generation or the first filial generation. The seeds collected from the second generation (F1 generation) is called F2 generation or the second filial generation.
Explanation:
A food chain is the order in which we can see which predators eat which prey. Food chains are easier to understand at a glance then a food pyramid.
Answer:
What proteins,DNA, fat and sugar have in common is that they are biomolecules, or organic molecules, which all contain carbon and are necessary for the vital functions of living beings.
Explanation:
The principal biomolecules of living beings are proteins, carbohydrates or sugars, lipids and nucleic acids, such as DNA. All these molecules contain carbon in their composition and have hydrocarbon structures that may also have oxygen, nitrogen, sulfur and phosphorus in their composition.
Each of these biomolecules has a specific function and is indispensable for the development of life:
- <em><u>Proteins</u></em><em>: they are composed of amino acids and participate in the constitution of tissues, metabolic processes and the regulation of organic functions.
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- <em><u>Carbohydrates</u></em><em>: they are the main energy substrate, participating in the metabolism that leads to obtaining ATP.
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- <em><u>Lipids</u></em><em>: they are the main constituent of cell membranes, as well as constituting other organic molecules and being a reserve energy source.
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- <em><u>Nucleic acids</u></em><em>: DNA and RNA participate in the process of storage and transmission of genetic information, being responsible for processes such as the synthesis of proteins and other molecules.
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<u>The characteristics that have in common proteins, DNA, lipids and carbohydrates are their carbon-based composition, being organic molecules and being essential for living beings</u>.
<span>The characteristics that scientists used to classify living organisms into six kingdoms include the following:
1. Cell type: living organisms are classified into prokaryotes and eukaryotes based on the presence of nucleus and distinct arrangement of the organelles in their cells.
2. Mobility: living organisms are categorized into kingdoms based on their ability or inability to move about.
3. Cell structure: the cells structure was used to divide living organisms into plants and animals. Those living organisms that have cell wall are classified as plants while those who do not have cell wall are classified as animals.
4. Number of cells: living organisms that are made up of only one cell are classified as unicellular while those with many cells are termed multi cellular.
5. Reproduction method: living organisms are classified based on whether they reproduce sexually or asexually.
6. Manner of obtaining energy: living organisms that can prouduce their own food are called autotrophs while those that can not produce their own foood are termed heterotrophs. Plants are essentially categorised as autotrophs while animals are described as heterotrophs.</span>
