Answer:
Science and technology improve the our lives. This is thanks to the many discoveries science have gifted us. When it comes to science, scientists have discovered all type of drugs that helped us raise our life expectancy. Technology advances at the same time science does, as we discover new natural resources to use we make simple task faster and easier with technology, also makemas our health care system more acurate and efective
Answer:
Explanation:
During prophase I, the homologous chromosomes condense and become visible as the x shape we know, pair up to form a tetrad, and exchange genetic material by crossing over.
Answer: I think it's A: the DNA of all organisms contains the same four bases.
