Answer:The hypothesis that eukaryotic cells evolved from a symbiotic association of prokaryotes—endosymbiosis—is particularly well supported by studies of mitochondria and chloroplasts, which are thought to have evolved from bacteria living in large cells.
Explanation:
Answer: Option B) is toxic to red blood cells.
Explanation:
Partial hydrolysis of lecithin by lecithinases (enzyme in black widow spiders and snakes venom) causes the removal of only one fatty acid to yield lysolecithins, which when subjected to the bloodstream by sting as a result of spider bite causes the rupture of red blood cells.
Thus, the mechanism is that it is toxic to red blood cells.
Answer: Look at the image bellow because I couldn't add an answer due to a glitch. Hope this helps!
Ecological balanced refers to the condition of dynamic equilibrium in a community of organisms in which the species, the diversity of ecosystem and the genetic pool remain relatively constant as a result of gradual changes that are brought about by natural selection. It is very important to ensure that the natural balance in an ecosystem is maintained. Typically, an ecosystem has to move through series of successional changes before it can reach the state of equilibrium. FOR AN ECOSYSTEM TO BE BALANCED, IT WILL TAKE BETWEEN THIRTY TO ONE HUNDRED YEARS depending on the type of ecosystem involved.
Mitosis
Prophase: Nuclear envelope dissapears, chromatin condenses, Centrioles appear, spindle fibers start to form, Sister chromatids appear
Metaphase: Chromosomes (sister chromatids) line up along the center of the cell
Anaphase: spindle fibers attach to centromeres
Telophase: centromeres split in half, sister chromatids split in half
Cytokinesis: cytoplasm replicates, the cell fully divides, and we have produce 2 diploid cells , or daughter cells
