Which of the following explains why sunlight is important to aquatic ecosystems

a(sunlight provides a source of heat energy to increase water temperatures.

b(sunlight keeps harmful bacteria from taking over aquatic ecosystems.

c(sunlight makes it possible for aquatic predators to see their prey underwater.

d(sunlight provides light energy that allows photosynthesis to occur in plankton and aquatic plants

D)Sunlight provides light energy that allows photosynthesis to occur in plankton and aquatic plants

Explanation:

PLankton and aquatic plants are the base of the food pyramid in the ocean, most animals that then feed other animals eat acquatic plants, and other big animals like whales eat plankton, so the most important function that the sunlight carries out is the fact that sunlight provides light energy for acquatin plants to perform photosynthesis.

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: