Biology, 28.08.2019 00:30 Amazingboliver4518

Which is the cause for how a species changes over time? a. mutations b. centromere c. rna replication d. gametes

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The answer to this is mutations. Over time, random errors occur in the genetic makeup of an organism, giving it newer abilities. These abilities could help them survive or make them easy pickings for predators. If they are favorable traits, then they will be able to pass it down through reproduction. Therefore, over time, every organism in that species will most likely have the trait.

A

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Answer from: cynthiagutierrez65

The answer is mutation, because overtimes during a cell reproduction, a gene may be change and it affect the entire other cell, some of that mutation are benefit to help the organism blend themselves to the environment and those with better mutation to help them with better traits, they will mostly likely to pass their genes on and survive very much.

Answer from: Quest

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.

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Answer from: Quest

its 42

i say its d?

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Which is the cause for how a species changes over time? a. mutations b. centromere c. rna replicati...