Why two factors cause the sun’s apparent position to change

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

Which is a genetic engineering advancement directly related to a career in biotechnology? 1) improving solar energy collection 2) transporting textiles at higher rates 3)creating crop foods that resist insect pests 4)repairing historical sites with quality materials

28. how many linkage groups will be formed by homogametic organism with 28 chromosomes?