What was louis agassiz's goal in founding the first marine laboratory in the united states?

Louis Agassiz established the first marine biology laboratory in the United States in order to help teachers at different levels to better capable themselves to teach natural history. He considered that learning from observations and first-hand analysis was perilous in attaining knowledge.  

The laboratory was established in 1873 and was situated in Penikese Island that was situated just off the coast of Massachusetts. The school was called the Anderson Summer School of Natural History.  

fertilization, pictured in figure 24.23a is the process in which gametes (an egg and sperm) fuse to form a zygote. the egg and sperm each contain one set of chromosomes. to ensure that the offspring has only one complete diploid set of chromosomes, only one sperm must fuse with one egg. in mammals, the egg is protected by a layer of extracellular matrix consisting mainly of glycoproteins called the zona pellucida. when a sperm binds to the zona pellucida, a series of biochemical events, called the acrosomal reactions, take place. in placental mammals, the acrosome contains digestive enzymes that initiate the degradation of the glycoprotein matrix protecting the egg and allowing the sperm plasma membrane to fuse with the egg plasma membrane, as illustrated in figure 24.23b. the fusion of these two membranes creates an opening through which the sperm nucleus is transferred into the ovum. the nuclear membranes of the egg and sperm break down and the two haploid genomes condense to form a diploid genome.

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