Answer:
Cell sap is a fluid found in the vacuoles (small cavities) of the living cell; it contains variable amounts of food and waste materials, inorganic salts, and nitrogenous compounds. Phloem, or sieve-tube, sap is the fluid carrying sugar from leaves to other parts of the plant in the summer.
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Correct matches are:
1. pair of identical chromosomes (chromosomes that contain the same genes) from each parent, which all organisms produced by sexual reproduction receive -- Homologous pair
2. period between two periods of mitosis -- Interphase
3. the process involving the division of the nucleus in a reproductive cell; cell division in which the daughter cells have fewer chromosomes than the parent cell; responsible for genetic recombination -- Meiosis
4. the stage in the first meiotic division in which the homologous chromosomes line up as a pair, forming a tetrad of chromatids at the equator of the cell -- Metaphase 1
5. the stage in the second meiotic division in which the chromatid pair lines up at the equator of the cell -- Metaphase 2
Conservation biologists are concerned with conserving the three levels of biodiversity on the planet
- The first level is genetic diversity, or variety, which is especially vulnerable in small populations.
- Small populations are more prone to lose alleles due to non-random mating events and the extinction of individuals with unique gene combinations.
- The second level is species diversity, which is defined as the quantity and relative abundance of species in a particular region.
- Conservation biologists are engaged in helping to safeguard as many species as possible, with a focus on threatened or endangered species.
The third level is ecosystem diversity, which considers an area's structure and function.
Learn more about Conservation biologists,
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The microscope made the discovery of cells possible
