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Answer: Scientist can determine if an object should be classified as living or non-living cells by looking under a microscope with a slide. If the slide has cells in it, it is considered alive and if the cells contain food, water, exposed waste, and environment, it is alive. If the object or slide does not have any cells in it, it is considered non-living because for a cell to be alive, it needs cells in it.</h3>
Answer:B) homologous chromosomes trade pieces of dna
Explanation:
Crossing over occurs between two homologous chromosome of sisters chromatid. Crossing over leads to exchange of genetic material between the two sister chromatids leading to recombination.
The decrease of testosterone in males is called andropause. This happens when a man reaches the age of 40 where there is a gradual decrease in their testosterone; about one percent less each year. Symptoms of andropause include, depression, insomnia, increased body fat, and difficulty concentrating.
Endocytosis is when a a cell engulfs material into the cell and exocytosis a form of waste where the cell gets rid of materials.
Same but like I got to answer questions before I can ask so sry
