List two ecological roles that fungi play in the marine environment.

They help to decompose

They are pathogens of Marine life

And help in nutrient cycling.

Explanation:

Fungi are eukaryotic organisms that produces spores, have woven filaments called hypae and are found in both terrestrial and aquatic environment.

Fungi in Marine environment play critical roles in the environment.

Marine fungi are decomposers, they help to breakdown or decompose Woody or herbaceous substrates in Marine habitat. They have the ability to to breakdown cellulose into smaller particles that will be needed in the ecosystem and ensuring the release of nutrients.

Fungi are pathogens if Marine habitat.

They transmit and and infect Martine organisms with different diseases, there by wrecking havoc on them.

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.

explanation: