Answer:
Scientists continue to add new kingdom to the system of classification because with the passage of time new organisms are discovered which have unique properties. These organisms donot fit to place in kingdom of classification. For example, protists are the organisms having both plants and animals characteristics so it cannot be placed into plants or animals kingdom so scientists make a new kingdom named protista.
The answer is the head is attracted to water and the tails are repelled by the water.
Climate change can affect biomes because it can change their weather patterns, its like Hawaii having snow and freezing temperatures, hope this helps
Answer: b. Water molecules
When sunlight is absorbed by one of many pigments present in photosystem II the light energy is distributed from pigment to pigment until it reaches the reaction center of photosystem II. The electrons present in the reaction center jumps to higher energy state on receiving light energy. Each high energy electron is passed to an acceptor molecule (plastoquinone) and replaced with an electron produced by splitting of water. The splitting of water produces oxygen and electrons. The high energy electrons are transferred to electron transport chain. The energy present in these electrons creates a gradient in the thylakoid membrane of chloroplast. The gradient facilitates the flow of H⁺ ions across thylakoid membrane and which lead to the production of ATP by enzyme ATP synthase.
Therefore, water is required to produce electrons in photosystem II.
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Answer:
elliptical, spiral and irregular and elliptical are the oldest
Explanation: