Black mice and tan mice are native species that are observed in a particular region. human habitation in the region caused an invasive mouse species to enter the region. these mice are brown and share the same food requirements as black mice. tan mice have different food requirements. how will this change affect the food web in the region? a)the availability of food resources for black mice and brown mice will decrease. b)the population of tan mice will decrease. c)the black mice and tan mice will compete for food resources. d)the tan mice and brown mice will compete for food resources.

The availability of food resources for black and brown mice will decrease.

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:

explanation: