HIV, the virus that causes AIDS, is transferred through body fluids. People once thought that HIV infections were untreatable. N
ow, many people live relatively long and healthy lives despite being infected with HIV. A. develop new medicines. B. treat inherited diseases. C. change societal attitudes. D. formulate new laws.
Answer: Haploid cells join to form an organism that has half the number of chromosomes as the parent. Haploid cells join to form an organism that has a complete set of chromosomes.
Some organs are both a source and sink. Leaves are sinks when growing and sources when photosynthesizing. Rhizomes are sinks when growing but become sources in the spring when they provide energy for new growth.
