Answer:
Two chromosomes that are similar but not identical are called homologous chromosomes. When the chromosomes are duplicated, two identical chromosomes are called sister chromatids.
Explanation:
1- four single bonds, 2- two single and one double bond, 3- one single and one t<span>riple bond, 4- two double bonds.</span>
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❖ The correct answer choice is removal of electrons from chlorophyll molecules.
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Answer:
species
Explanation:
According to the most widely used species definition, the biological species concept, a species is a group of organisms that can potentially interbreed, or mate, with one another to produce viable, fertile offspring.
Answer: C) The cell can produce energy for cellular functions.
Explanation: A cell is the functional unit of all living things. Cells are made up different parts with specialized functions. Cells take in nutrients from food and convert them to energy which is needed for other cellular functions. The specialized functions of the different parts of a cell can only be carried out if sufficient energy is provided by the cell. The functions of different parts of a cell include reproduction, absorption of nutrients and removal of substances from the cell, protein synthesis but none of these functions will be carried out if energy is not supplied.
