reproduction. Use the descriptions of the following species to predict what system of hermaphroditism they probably display. 1. Individuals rarely disperse once they are sexually mature, and the largest males get the most matings. Females protect the eggs. [Select] 2. Resources are of uniform quality and evenly dispersed, so males are unable to monopolize them. Females are larger than males; Males protect the eggs. [Select] 3. Individuals are solitary, rarely meet others, and have no way of knowing the sex ratio in the population. There is no parental care. [Select] [Select] protogynous hermaphrodite continuous hermaphrodite protoandrous hermaphrodite

Q28: Please type the answer to this question  Some salamanders exhibit neoteny, becoming sexually mature while still retaining some larval characteristics. In some species, the neotenic characteristics have become a permanent state of the species (obligate neoteny = paedogenesis; both are called paedomorphic conditions). These have lost the ability to undergo complete metamorphosis (hellbender, amphiuma, and mudpuppy). In others, the animal does not undergo complete metamorphosis in nature, but can be induced to do so in the lab.  An example of this is the Mexican axolotl (Ambystoma mexicanum), a large gilled salamander found in Mexico.  In some species of salamanders, members of a population exhibit neoteny only when they are under stressful environmental conditions (such as crowding, scarce food, low concentrations of trace elements). This is called facultative neoteny.  Tiger Salamanders (Ambvstoma tigrinum) frequently do this, but local populations of marbled salamanders show a…

Why does asexual reproduction disadvantageous? *       It takes time and energy to find a mate and reproduce. No answer Both A and B Low genetic diversity means susceptibility to diseases Fewer offspring are typically produced.

SLore milliOns of sperI. In males, the outside of the body. is a structure located inside the penis that carries urine and sperm to the is the fluid that transports sperm ells. are male reproductive cells, while are female reproductive cells.

please answer 21 21 Based on the figure in the previous question, explain in one to wo sentences the mechanism regulating the response identified.

Over the last decade, communication between parents and children about puberty and reproduction has ______ across all races/ethnicities.

in your own words: Compare the reproductive organs of reptiles and birds. How are their reproductive patterns advantageous for their survival?

妆 300 power. You should find something that looks like this Now look at a slide labeled Eat Testis understands the Rat Testis 40X Each seminiferous tubule (round tubes above) contains cells undergoing Meiosis to produce mature sperm. The process of Meiosis occurs from the outside of the tubule to the inside, with the sperm (now having tails) dropping into the open duct in the center. As you look at a particular seminiferous tubule, you should see distinct cells that are similar to the drawing shown below. Answer the following questions: Where in the seminiferous tubule would you expect to find diploid cells? Label them. Where would you find haploid cells? Label them. Which cells do you think are undergoing Meiosis I? Which cells do you think are undergoing Meiosis II? Outside of Tubule Oogenesis occurs in the overy of the female and resulta The cells involved have names familiar to you Oogonium and 1 oocyte, and the oogmian divide via mitosis. There is one key differen however, in that…

In the early 2000s, scientists have determined that the nation's top-selling weed killer, atrazine, disrupts the sexual development of frogs at concentrations 30 times lower than levels allowed by the Environmental Protection Agency (EPA), raising concerns about heavy use of the herbicide on corn, soybeans and other crops in the Midwest and around the world. The amphibians (the frogs) are exposed to atrazine when in water. [atrazine frog Given that log Kow for atrazine is 2.65 and that log 0.85 log Kow - 0.07. %3D [atrazine]pater If the atrazine concentration in the water is 100 ng/L, what would be the concentration of atrazine in frogs in ppm?

Provide some examples of asexual and sexual reproduction. Suggest why the organisms you have chosen have these reproductive strategies.