Researchers have observed some adverse health effects in sheep and other mammals that have been cloned. These include an increase in birth size and a variety of defects in vital organs, such as the liver, brain and heart. Other consequences include premature aging and problems with the immune system. DoRead More →
: reproducing itself : passing on its characteristics. What does reproduction mean in simple words? 1 : the act or process of reproducing specifically : the process by which plants and animals give rise to offspring and which fundamentally consists of the segregation of a portion of the parental bodyRead More →
Sharks and Skates as Seafood? While smooth dogfish may not be on your list of favorite seafood, cartilaginous fish (mainly sharks and skates) may increasingly find their way onto your dinner plate due to the decline of more traditional fisheries. What makes sharks a cartilaginous fish? Cartilaginous skeleton Unlike fishesRead More →
There are a number of types of asexual reproduction including fission, fragmentation, budding, vegetative reproduction, spore formation and agamogenesis. Are two types of asexual reproduction? Asexual reproduction Binary fission: Single parent cell doubles its DNA, then divides into two cells. … Budding: Small growth on surface of parent breaks off,Read More →
Oogamy: in humans and mammals, one of the gametes, male gamete or sperm, is motile and the other gamete, egg, or female gamete is non-motile. This condition is known as oogamy, wherein a large non-motile egg is fertilized or will fuse with a small and motile sperm to form theRead More →
Once conditions become favorable, each polyp elongates and then buds off and releases many young jellyfish. A single polyp may thereby, by itself, reproduce large numbers of jellyfish. … Swarms of young jellyfish may thereby quickly form when their survival prospects are best. Do jellyfish lay eggs or give liveRead More →
Through a process called “fission,” planarians can reproduce asexually by simply tearing themselves into two pieces — a head and a tail — which then go on to form two new worms within about a week. Are platyhelminthes capable of reproduction? Flatworms are hermaphrodites. Hermaphrodites are organisms that have bothRead More →