Both methods have advantages and disadvantages. Asexual reproduction produces offspring that are genetically identical to the parent because the offspring are all clones of the original parent. A single individual can produce offspring asexually and large numbers of offspring can be produced quickly. In a stable or predictable environment, asexual reproduction is an effective means of reproduction because all the offspring will be adapted to that environment. In an unstable or unpredictable environment asexually-reproducing species may be at a disadvantage because all the offspring are genetically identical and may not have the genetic variation to survive in new or different conditions.
24.1. Reproduction Methods
Reproduction ( Read ) | Biology | CK Foundation
Nervous systems throughout the animal kingdom vary in structure and complexity, as illustrated by the variety of animals shown in Figure Some organisms, like sea sponges, lack a true nervous system. The insect nervous system is more complex but also fairly decentralized. It contains a brain, ventral nerve cord, and ganglia clusters of connected neurons. These ganglia can control movements and behaviors without input from the brain. Octopi may have the most complicated of invertebrate nervous systems—they have neurons that are organized in specialized lobes and eyes that are structurally similar to vertebrate species. Compared to invertebrates, vertebrate nervous systems are more complex, centralized, and specialized.
5 Types of Asexual Reproduction
You likely studied human reproduction in a health course or previous biology course. Reproduction is necessary for the survival of a species, and animals have evolved various reproductive strategies. In a previous chapter we learned that asexual reproduction via mitosis produces genetically identical organisms clones. We also previously explored how meiosis followed by sexual reproduction produces offspring that are genetically different from their parents. Both asexual and sexual reproductive strategies have their advantages and disadvantages.
Asexual reproduction  is a type of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only; it does not involve the fusion of gametes , and almost never changes the number of chromosomes. Asexual reproduction is the primary form of reproduction for single-celled organisms such as archaea and bacteria. Many plants and fungi sometimes reproduce asexually. Some asexual cells die when they are very young.