Science is composed of a body of knowledge and the scientific methods used to acquire it. This includes laws, theories, and systems for conducting scientific inquiry. Sciences can be broadly categorized into natural sciences and social sciences.
The two key components of science are the body of knowledge and the methods of gaining that knowledge. The body of knowledge incorporates laws and theories which are general truths about the universe. The second component is the scientific method, involving observation, hypothesis formulation, experimentation, and conclusion. These methods represent the systematic approach to uncover the principles governing the natural world.
For instance, with respect to physics, the focus is on describing interactions of energy, matter, space, and time. It's also important to remember that science is a study in progress, and therefore what we 'know' can change as techniques and our understanding progress over time.
Science is broken down into two broad categories, the natural sciences and the social sciences. Natural sciences include disciplines like biology, chemistry, and physics, while social sciences focus on human behavior and society. Both categories aim to expand our knowledge and understanding of the world and how it operates.
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Bacteria and archaea differ in their cell walls makeup.
Further Explanation:
Archaea is considered to arise many years ago and is also considered to be the most primitive form of life. Earlier they were classified as bacteria but as they possessed certain difference features when compared with bacteria, it was now termed as archaea. Some of the characteristics of archaea resembles eukaryotes while other resembles with prokaryotes.
Archaea are single celled organism and they can thrive in harsh conditions like marshy area and hot springs. Some of the example of archaea are, Thermococcus litoralis, Methanopyrus kandleri, Cenarchaeum symbiosum etc.
The features of archaea which are similar to bacteria are:
1. Lack of nuclear envelop.
2. Lack of membrane bound envelop.
3. Presence of circular chromosomes.
The features of archaea which are similar to eukaryotes are:
1. Methionine is the initiator amino acid for protein synthesis.
2. Lack of peptidoglycan in their cell wall.
3. Association of histones with DNA.
Learn more:
1. Learn more about plants brainly.com/question/862697
2. Learn more about bacteria brainly.com/question/4656094
3. Learn more about viruses brainly.com/question/3889603
Answer Details:
Grade: Middle school
Subject: Biology
Chapter: Classification of organism
Keywords:
Bacteria, archaea, methionine, peptidoglycan, histones, chromosomes, cell wall, DNA, nuclear envelope, eukaryotes, Thermococcus litoralis, Methanopyrus kandleri, Cenarchaeum symbiosum.
The correct answer is:
Convection currents
Explanation:
Convection is the heat distinction due to majority conversion of molecules inside liquids such as vapors and liquids, including molten rock. Convection takes place within advection, diffusion or both. Convection courses in the magma drive plate tectonics. Heat produced from the radioactive breakdown of elements wide in the center of the Earth produces magma (molten rock) in the aesthenosphere.
cell division and differentiation, and the role of specialized cells in complex organisms, such as humans.
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The stems cells make new cells by the process of cell division and the new cells continuous to divide and continue to grow and specialize into new cells that tends to replace themselves.
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Stem cell division is the process of mitosis that produces two identical daughter cells, which can then either remain as stem cells or differentiate into specialized cells. Specialized cells have specific functions in complex organisms.
In stem cell division, stem cells undergo the process of mitosis to produce two identical daughter cells. These daughter cells can either remain as stem cells or differentiate into different types of specialized cells. Stem cell differentiation is the process by which stem cells develop into distinct cell types with specific functions. In complex organisms like humans, specialized cells play crucial roles in various physiological processes, such as carrying oxygen in red blood cells or transmitting signals in nerve cells.
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Disruptive selection is taking place in the snail population based on their shell color. Snails with light colored shells blend in with sand while snails with dark colored shells blend in with rocks. This leads to a split in the population with extreme phenotypes being favored.
The type of natural selection taking place in this snail population is disruptive selection. Disruptive selection occurs when extreme phenotypes are favored over intermediate phenotypes, leading to a split in the population. In this case, snails with light colored shells are favored in the sandy habitat, while snails with dark colored shells are favored in the rocky habitat. This results in a bimodal distribution of shell color.
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