A female drosophila can lay upto 500 eggs. Drosophila is a holometabolous insect—that is, an insect that has a larval and a pupal stage prior to the adult stage. (Hemimetabolous insects, on the other hand, have nymph stages preceding the adult.) The adult Drosophila may live for more than 10 weeks. During this time, mating takes place.
Once they have attached to a host they will begin feeding. After a female is done feeding she will lay several hundred eggs within three weeks. 30 female fleas on a dog can produce up to 600 eggs per day and over 4200 eggs in a week. Eggs do not stick to fur and so are easily shaken off when a pet moves or shakes. The eggs fall on the floor where they will hatch in a week or so.
The lion has internal, sexual reproduction where the male injects sperm into the female in order to fertilize her eggs. This system helps the lions reproduce the best they can in their natural environments and allows the mother to protect her children while they are developing inside her.The earthworm is a hermaphrodite, which means that it contains both male and female reproductive organs. However, two mates are typically required in order to produce offspring. The two earthworms line up next to each other and exchange sperm, and then a cocoon slides off of each one to envelop the eggs and the new sperm. Jellyfish have external reproduction, where they release the egg and the sperm into the water to meet each other.
A Driver’s license B. A Passport C. A Visa D. A Coquí (small frog Species native to Puerto Rico)” 3. Statistic Slide: Project slide, and then inform them with a statistic to keep their attention. “According to The Economist-YouGov in 2016 they surveyed 2,000 random U.S. citizens conducted in 4 day span, and found that 56 percent of Americans
The article explains the phenomena of sex change in clown fish by using an unlikely event as an example, three young clownfish survive their journey into adulthood and establish a population with an unsettled anemone. Rhodes explains that two of the three fish will become male and female, while the third remains unsexual. In the event that the one female dies, the male clownfish becomes the alpha female while the unsexual third fish will become male, a process which reorganizes the gonads of the clownfish, which usually takes about two weeks. It is also mentioned that sex change does affect the behavior of the fish, with the alpha male who will eventually become female takes on the aggressive behavior of an alpha female. The author does mention that not much is known what role the brain takes in the sex change, but that it might have something to do with the excretion of hormones form the pituitary gland.
Brine Shrimps tend to hatch in specific environmental conditions, such as high and low salt concentrations in water, weather and temperature. As one of the environmental conditions in which Brine Shrimp eggs hatch is water salinity and so, in this assignment, we were given 4 different salinity levels of water, which were 0%, 3%, 6% and 9%. As a result of the experiment, we noted that after 24 hours only one egg hatched at 3% salinity level and none at 0%, 6% and 9% levels. The second day, which was after 48 hours, there were 0 shrimps that hatched in 0% and 9% salinity levels, whereas at 3%, 7 out of 46(15.3%) eggs hatched and 6 out of 49(11%) at 6% levels. Based on this data our group concluded that the best level for hatching shrimps is 3%
The Panamanian golden frog or Atelopus zeteki is a rare species of toad endemic to Panama. It is found along the slopes of the Cordilleran cloud forests of west-central Panama. The toads have yellow-green to bright gold skin with black spots on the back and legs. The female frogs re usually larger than the male frogs. The size of the female ranges from, 45-63mm in length and 4-15g in weight .Whereas, the size of the male varies from 35-48mm in length and 3-12 gm in weight.
Their bodies are tapered at both ends giving them a sleek, fusiform shape. Generally, adult males have chocolate brown coat while the coat color of females and young males is tan; pups are darker in color compared to adults. As animals age, the hair around their heads lightens changing into light tan. The foreflippers of California sea lions are large and wing-like which are modified and used in an up-and-down, wing-like motion to propel themselves through the water. The hind flippers are smaller than foreflippers and when rotated underneath they body, they support the sea lion weight and enable
When hermit crabs have outgrown their shell, they shed it and look for a new one. Sometimes they will go bare before they find their new home. Those months between my depart from Jamaica and the prefect pinning ceremony, I had been bare, looking for a shell which fit me and one that I would be proud to carry. My channeled whelk is tinted with champagne and beige, smooth in texture and perfected with fibonacci. I am a hermit crab - I mature, I change, I
The nymph stage is next. Over the course of 13 or 17 years, cicada nymphs shed and grow out of four exoskeletons and use the changing qualities of root juices to determine when to awaken. Finally, the nymph uses its now strong legs to burrow out; it detaches itself from its last
Once they are up in the tree and begin to start amplexing together they can take up to twenty to thirty hours together amplexing in the tree, after that process the to develope the tadpoles can take up to two to three weeks. When the tadpoles are developed in the stomach of the male frog then he regurgitates a clear bubble with all the baby tadpoles inside, the bubble that the tadpoles are in are made from the male frogs mucus. (Glass Frog Care and Information). The Glass Frog species was discovered in 2015 by Dr. Brian Kubicki and there were 120 species of glass frogs and now today there is 121 species. Only one of the species is a Kermit lookalike and was to be named Greenus Kermitus instead they named it fleischmanni.
Female Red-tailed hawks usually produce 1 to 5 eggs with an incubation period of between 28 to 35 days and a nestling period of between 42-46 days. The female stays with the young during the first week while the male brings the food to the nest. Audubon, an online guide to North American birds describes that after 4 to 5 weeks, food is dropped in the nest and young learn to feed for themselves. Thereafter, the young leaves the nest after about 6 to 7 weeks after hatching (“Red-tailed Hawk Buteo jamaicensis”, n.d.). The young can develop rather quickly and their feathers begin to grow allowing the young to take its first flight around the 42 days
There are also two lobsters found in this area, the spiny lobster and the spotted spiny lobster. Lobsters can live for up to fifteen years old and grow up to three feet in length. They are also very similar to crabs and shrimp, all of them have a hard exoskeleton, lots of legs and really long antenna. The West Indian Manatee is most commonly in the keys in the winter season. Manatees can weigh between eight hundred to twelve
Normally mute swans nest one time a year between the months of March and August. The nests are made next to water or on floating islands by the female. She uses building materials gathered by males, which includes grasses and twigs (Jimenez 2007). A pair often matches by the age of 2 even though they may not breed for another couple years. Although they pair, the swans usually do not mate for life; some have as many as four mates and even “divorce” one in favor of another (Ivory 2002).
Intruding on the fresh water of six US states, roams the scaled head, large mouth, razor sharp teeth and protruding lower jaws of the Snakehead Fish. The life cycle of The Snakehead fish begins between June and July when females begin spawning. The female fish may lay up to 15,000 eggs one to five times per year. After 1 to 2 days, the eggs will hatch and be guarded by both parents. They feed on small crustaceans and fish larvae.