Which animals use echolocation? (Select all that apply.) mosquitos

eagles

porpoises

dolphins

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dolphins and porpoises

Explanation:

they all use echolocation and commonly get trapped by net fishers :(

Hope this helps you out :P

Dolphins

Explanation:

Dolphins utilize sounds via echolocation to orient themselves and survive by detecting prey. In murky waters, visibility may be extremely low, thus dolphins rely on echolocation rather than sight to catch prey and avoid predators.

Hope this helps! :)

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: