Answer: Psychology is a science because it follows the empirical method. It is this emphasis on the empirically observable that made it necessary for psychology to change its definition from the study of the mind (because the mind itself could not be directly observed) to the science of behavior.
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Answer:
1. DNA is the hereditary material in all living cells. Genes are a unit of heredity and are made up of DNA.
2. Asexual reproduction is reproduction that only requires one parent and that produces offspring that are genetically identical to their parent. Sexual reproduction involves two parents and produces offspring that are each genetically different.
Answer: D
Explanation:
Crossing over refers to homologous chrosmomes exchanging DNA which creates variation of chromsoomes that are inheried by offspring.
Answer: see below.
Explanation:
gases dissolve more in colder water, so in summer the water can become oxygen depleted. Evaporation in summer can reduce water volume; even in summer rainfall climate evaporation rates may exceed precipitation. Evaporation will also cause higher conentrations of solutes of which some may reach toxic levels. Summer sun may also cause algal or cyanobacterial blooms which can further deplete dissolved oxygen and may release toxins into the water.
