Aphids, for example, will favor asexual reproduction when their environment is stable. When the environment is going to turn cold, most species of aphids reproduce sexually, because sexual reproduction produces eggs that are freeze tolerant and can diapause during the winter (Simon et al. 2002)....
These autonomous females don't need a mate to give birth. And new research suggests that asexual reproduction may even have evolutionary advantages.
Discover the processes of reproduction in animals. Compare sexual reproduction to asexual reproduction in animals with examples of the different...
The chimpanzee MSY lost four X-degenerated genes that are in human within 6 Ma. This is further confirmed by the presence of all 16 genes in the gorilla Y chromosome that shared a common ancestor with the human–chimpanzee lineage about 7 Mya (Goto et al. 2009). It is not clear ...
Placozoans possess the smallest genome of any known animal and are composed of only four different cell types. While asexual reproduction has been observed in placozoans, no evidence of sexual reproduction has been documented. The biology of the organisms remains largely unknown. ...
There are different stages that animals, including humans, go through. The juvenile phase is the phase of growth and development till the animal reaches its maturity, after which it can reproduce sexually. In different animals, there are some cyclical changes that occur during reproduction. ...
When plants and animals reproduce sexually, they produce offspring. In plants, offspring are the seedlings that result from the fertilization of the ovules by the pollen of the plants. In animals, the offspring are the young, or children that are produced....
rather than asexual, although it is easier mechanically for an organism simply to divide into two or more individuals. Even many of the organisms that do exactly this—and they are not all the so-called primitive forms—every so often intersperse their normal asexual pattern with sexual ...
Insects are animals. Like all animals, insects are multicellular organisms that respire using oxygen, reproduce sexually, eat and move. Insects belong to the animal class Insecta, which, with around one million living species, is by far the biggest class within the animal kingdom. Insects make ...
the taiga does not come into contact with the humid temperate or subpolarrainforestof coastal Alaska andBritish Columbiabecause of high mountain barriers, but some low-elevation regions have a transition zone often characterized by trees that are a hybrid of Sitka spruce (Picea sitchensis) and ...