Which of the following would be the most important adaptation for a desert-dwelling animal to possess? a. heat dissipation structures b. heat conserving structures c. energy conserving behaviors d. water conserving behaviors

The correct answer is option d. water conserving behavior.

The desert biome lacks water, so, the conservation of the water is very important for the organism for the survival in the deserts. The desert dwelling animals are adapted, in such a way, that the water is conserved in the body of the animals. They do not drink water for many days and utilize the water present in the body.  

2%

explanation:

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: