four characteristics of organism that reproduce as r-strategist?
489172
1- large amount of offspring in shorter time than K selected species.\n2- Early reproduction \n3- low biomass\n3- short lifespan\n\nBacteria, mice, insects... they're all r-selected.
809779
1. b, because even if the father was heterzygous, there would still be a 3:1 ratio of brown eyed offspring\n2.d, autotrophs are organisms that produce their own food and do not need to  get nutrients from other sources\n3. True, I believe that fertilization occurs in all sexuallly reproducing species, but there are some organisms that reproduce asexually, but you may not be talking about those.\n4. False, There are asexual organisms that are eukaryotic
84613
The term you are looking for is "autotrophs."  The word means "self-feeders" and these types of organisms can synthesize their own energy-rich organic molecules.  They do not require any organic molecules from outside sources; only inorganic molecules.\nAutotrophs include plants and other photosynthetic organisms, and chemosynthetic bacteria (who form their food from chemicals).  \nAs a side note, heterotrophs are the organisms that cannot create their own food.\n\nHope this is helpful :-)
370678
The first example would be "halpodiploidy" that occurs in bees, ants and wasps. In this form of asexual reproduction, females lay unfertilized eggs. The eggs can then hatch without fertilization, giving an asexually produced male, or they can be fertilized by a male, giving a sexually produced female.\n\nA second example would be "parthenogenesis" (Greek for "virgin birth"), seen in some fish, reptiles and amphibians. One commonly studied reptile species, the lizard Cnemidophorus neomexicanus, contains only females. All progeny contain the exact genetic information as its mother, essentially making it a clone. The females still engage in lesbian sexual behavior, which is thought to stimulate the laying of eggs. No genetic information, however, is transferred during this sexual act.\n\nThere are many other examples, and the previous answer touched on a few. I would add that anthrax is a bacterium, and therefore NOT a many-celled organism.
732538
1RR, 2 Rr, and 1 rr   (a genotypic ratio of 1:2:1)\n\nwe just learned this in my bio class too!\nyou can use a punnett square to solve problems like this. you can look up punnett squares online, but you would set one up with an R and an r on both sides.\n\ni hope that helps!
722900
Richard Dawkins has two wonderful chapters on cnidarians (jellyfish) and poriferans (sponges) in 'The Ancestor's Tale.'\n\nCnidarians have two body plans, the medusa (jellyfish) and the polyp (sea anemones and hydras).  Polyps often reproduce by budding and can make huge colonies of organisms.  The portuguese-man-of-war is actually a complex colony of medusa and polyp forms.  (BTW, he has a great discussion about how the stinger cell in jellyfish may be the most complex structure in any cell anywhere in the animal and plant kingdoms. Way cool!)\n\nPoriferans (sponges) are even simpler organisms.  Although they are ostensibly multicellular organisms, with several types of cells, these cells don't organize themselves into specialized tissues and organs. Sponges are able to reproduce both asexually and sexually.\n\nSo the evolutionary significance is that an individual is basically a colony.  As such they are right at the boundary between single-celled and multi-celled creatures.  They demonstrate how multi-celled organisms could arise as a colony of cooperating single-cells.
607312
I am not sure what you mean by uni-sex in biology....\n\nIn biology, sexual reproduction is not said to have been started with only females per se! Uni sexual is not the same as hermaphroditic either. Monoecious and dieocious are the usual terms. Monoecious means hermaphrodite and dioecious means separate sexes. But reproduction can be either sexual or asexual (and sometimes some organisms do both, like, mosses, liverworts, ferns with alternation of generations.) \n\nThere are a few species of animals who have only females, though....at least 22 species of parthenogenic lizards identified last I checked! They lay eggs, mate like "lesbian lizards" without sperm and have babies. Wild!\n\nHowever, a "male" is usually described in biology as any organism that makes "sperm" gametes, so in that case, hermaphroditic organisms like most flowering plants (sperm is in pollen) have males as PART of the often hermaphroditic flower known as the stamen.  (some flowers are dioecious) So males are found in plants or animals.  In fact the anther is the pollen producing part of the stamen and is sorta comparable to the testes of the animal. In fungus there are opposite strains of hyphae that reproduce "sexually" but not with gametes and they are described as + and - branches, which some claim are m-f, but it is still considered sexual reproduction, whereby genetic information is exchanged and a genetically DIFFERENT offspring is produced. Asexual produces gentically identical offspring-clones. Bacteria usually reproduce asexually, but sexual conjugation can occur (sexual) in bacilli. Paramecium are the most famous for their sexual reproduction-conjugation too. In the cases of fungi, bacteria, paramecia, however, the gender is not considered even though it is considered SEXUAL. So what biologists consider as very "primative" organism are capable of sexual reproduction.
450329
are you talking about genes? the complex arrangement of genes in numerous chains make up the characteristics of primates and most of all duel-reproductive organisms. out of the thousands, only a few have been mapped or pulled apart into single strands. the UCLA medical school has links to genetic mapping web sites. very cool!
1114115
I can assure you that this is absolutely not biologically possible.  Members of different species cannot reproduce and produce viable offpsring together, according to the classical definition of a species.
990256
Non-living. It cannot reproduce by itself, cannot regulate homeostasis, depends/hijacks other hosts for reproduction. It's mostly leftover/waste DNA of some bacteria/protist that ejects their DNA into the air with a protein capsule to reproduce, although this didn't work.
419437
Genetic code,teeth, hair, claws, brains. reproduction: color, smell, size, shape, power.Good Luck!
964752
The first three are correct.  I am having difficult finding an organism that is not somehow connected to an energy source.
973916
look here:\n\nhttp://www.biologie.uni-hamburg.de/b-online/e18/18c.htm
475898
The "Red Queen " theory of why there is sexual reproduction, states that organisms sexually reproduce to vary the immune response to ever changing bacterial and viral evolution, weather natural or artificial selection. You see the asexual organism having great reproductive numbers, this makes vulnerable populations to parasitical attack, hence they clone rapidly. There is also the genetic recombination component that other answers to your question brought up.
694083
1. Energy production and storage\n2. Structure.\n3. Supply carbon for synthesis\n4. Cell identification.
714074
Reproduce.  Prolifically.
692701
The six characteristics of living things, and an explanation of each one. \nTheme #1 - Cells \n\nAll living things are composed of one or more cells. Different types of cells have different "jobs" within the organism. Each life form begins from one cell, which then will split. These cells split, and so on. After this has happened several times, differentiation is undergone, when the cells change so that they are not the same thing anymore. Then they are used to begin to put together the final organism, some cells, for example, as the eyes, some as the heart, etc. The only arguable exception to this is viruses. They are not composed of cells, but are said to be "living." \nTheme#2 - Organization \n\n \nComplex organization patterns are found in all living organisms. They arrange themselves on very small levels, grouping like things together. On larger levels, they become visible. This also has to do with differentiation, as the cells are organized in a manner that makes sense for the organism after they change to what they’ll be in the final organism. \n\nTheme#3 - Energy Use \n\nAll organisms use energy. The sum of the chemical energy they use is called metabolism. This energy is used to carry out everything they do. Autotrophs (plants) use energy from the sun for photosynthesis, to make their own ‘food’ (glucose). Heterotrophs (animals and humans) must ingest food for this purpose. \n\n\nTheme#4 - Homeostasis \n\nAll organisms have stable internal conditions which must be maintained in order to remain alive. These include temperature, water content, heartbeat, and other such things. In a way, this has to do with energy use, because a certain level of energy must be kept within the body at all times. For this, obviously, humans must then ingest food on a regular basis. Not all conditions are for the body to maintain itself; though most are. \n\n\nTheme#5 - Growth \n\nAll organisms grow and change. Cells divide to form new, identical cells. Differentiation happens, as well, when cells mutate into other types of cells, making a more complex organism. Organisms growing, changing, and becoming more complex is called development. Single-celled organisms do grow as well, but they will only become slightly larger – this is nearly unmeasurable. \n\n\nTheme#6 - Reproduction \n\nAll organisms reproduce in order to continue the species' life. This is combining genetic information (in sexual reproduction) or splitting into two organisms (in asexual reproduction) in order to create another of the same species. In sexual reproduction, the new organism will have some characteristics from the mother, and some from father. It may look like either of them, or it may not. In asexual reproduction, the new organism is an exact copy of the first. Sometimes, not every member of a species is able to reproduce. As long as others are (which we know they can, if they still exist today) then it does not threaten the species. (Except for mules, but don't worry about them, they are a bizarre anomoly.)