Answer:
meioisis
Explanation:
B. habitat loss
C. increased temperature
D. acid rain
Answer: Cynobacteria
Explanation:
The Precambrian time is the earliest period of earth history. It is preceded by the Cambrian time hence got the name. The earliest living organism in the Precambrian time was the Cynobacteria. It has been found in the fossil record of 3.4 billion years ago. They were the primitive organisms which were capable of conducting photosynthesis and producing oxygen. The abundance of Cynobacteria has resulted in the increase in abundance of oxygen into the atmosphere.
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Answer:
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Explanation:
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.
Photosynthesis and cellular respiration are two interdependent processes. Photosynthesis uses carbon dioxide and water to produce carbohydrates and oxygen, while cellular respiration uses these carbohydrates to produce energy, carbon dioxide, and water. They form a cyclical biological harmony vital to life.
Photosynthesis and cellular respiration are two fundamental processes in the carbon cycle that share reciprocal reactants and products. In photosynthesis, plants absorb light energy to build carbohydrates in chloroplasts, using carbon dioxide and water. The resulting byproduct of this process is oxygen. On the other hand, cellular respiration occurs in the cytoplasm and mitochondria, where organisms metabolize these carbohydrates to produce energy, in the process releasing carbon dioxide and water. Both processes use electron transport chains to capture the energy necessary to drive other reactions.
Thus, photosynthesis and cellular respiration are linked in a cyclical biological harmony; they provide the life-sustaining energy that originates millions of miles away in the sun. Photosynthesis produces the carbohydrates needed for cellular respiration, and cellular respiration releases the carbon dioxide required for photosynthesis, creating an interdependent cycle vital to most forms of life on Earth.
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B. Skeletal muscle
C. Cardiac muscle
D. Cartilage muscle
A. Smooth muscle is the muscle aids in the digestion of food.
Smooth muscle is a type of muscle that is not under conscious control and is found in the walls of various organs and structures throughout the body, including the digestive system.
Smooth muscle contraction is slow and sustained, which is important in the digestive system as it helps to propel food through the digestive tract and allows for the mixing and churning of food with digestive enzymes and stomach acid.
Smooth muscle in the walls of blood vessels also helps to regulate blood pressure and flow. In the digestive system, smooth muscle is found in the walls of the esophagus, stomach, intestines, and other organs.
Contraction of the smooth muscle in these organs helps to propel food through the digestive tract, mix it with digestive enzymes and stomach acid, and facilitate the absorption of nutrients.
The contraction and relaxation of smooth muscle is controlled by the autonomic nervous system and various hormones.
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