Concept explainers
To review:
The relative order of the given sites where lichens are grown, based on their distance from the large city center; other factors that might influence the prediction, and the two big factors that might affect these results.
Given:
The data related to lichens from five survey sites are tabulated as follows in Table 1 below.
Table 1: Number of lichen species and the number of tree branches (in percent) covered in lichen at five different sites.
Site number | Number of lichen species | Percent of tree branches covered in lichens |
1 | 5 | 38 |
2 | 1 | 2 |
3 | 3 | 15 |
4 | 8 | 75 |
5 | 13 | 100 |
Introduction:
A lichen is the combination of two organisms that exist together in a symbiotic relationship. A symbiotic relationship is the one in which two organisms live in a harmony without harming each other. In case of lichens, the
Want to see the full answer?
Check out a sample textbook solutionChapter 29 Solutions
Life: The Science of Biology
- article: Alcobiosis, an algal‑fungal association on the threshold of lichenisation 1. What two organisms are co-existing under the term ALCOBIOSIS? 2. Which species from your #1 answer, have a usual faithful to a specific kind of interaction? 3. How did the researchers confirmed that the algae are alive, active, and engage heavily in photosynthesis? 4. Where does your #3 question and answer proves along with the research? 5. Though this interaction, alcobiosis bear a striking resemblance to lichens, how did this new interactions differs? 6. What animal aided the spread of alcobiosis? 7. How does your answer in #6 aids the new symbiosis?arrow_forwardIdentify the most probable “suspect” based on the limited information provided by the report and explain why you think this protist must have caused the victims to lose consciousness. Try to make a succinct profile of the “suspect” including justification of answer in the symptoms portion. Make sure that the treatment is locally available in our country. Do not forget to include the reference/s used.arrow_forwardYou happen on to a lichen growing on a tree that is very flat, thin and is "hugging" close to the tree. This lichen is; A fruiticose lichen A foliose lichen a crustose lichenarrow_forward
- Find the large nucleus located near the cell. Make several outline drawings to illustrate the successive changes of 1. shape of the amoeba. Make drawings of the Amoeba you observe, and label its structures. C O O liko mer 0 AS 6 0 O Paramecium -- Paramecia are quite large, straw-colored, slipper-shaped and move rapidly, and they are thus very noticeable. If there are Paramecia in your field of view you probably will recognize them immediately. Often, however, students do have difficulty both finding a Paramecium, and after they have found one, making it move slowly enough so they can study it at high magnification. The trick to finding a Paramecium is to scan the entire slide quickly using the scanning lens. Then, if you do not find one, make a new slide and search again. Often, Paramecia tend to move to the edges of the coverslip, and even "escape" the coverslip at its edges. The trick to slowing the Paramecia is to mix a drop of methyl cellulose with a drop of the cell culture, as…arrow_forwardLichens are a symbiont of fungi and algae. What type of symbiosis is seen in a lichen? O A. Commensialism - one benefits while the other doesn't benefit or is harmed O B. Mutualism - both benefit O C. Parasitism - one benefits while the other is harmedarrow_forwardIndividual amoebae (Dictyostelium discoideum) occasionally aggregate into a colony. About 20 percent of the amoebae in the colony make up a stalk that supports a ball composed of the remainder of the amoebae. The stalk-forming individuals die without reproducing, whereas the amoebae in the ball, or fruiting body, give rise to spores that can become new individuals after the spores are carried away from the colony by passing insects and the like. On occasion two genetically different strains of the amoeba cooperate in the formation of a stalked fruiting body. What evolutionary puzzle is posed by this observation? Use kin (indirect) selection theory to make a prediction about the genetic similarity of the strains that work together when forming a colony versus those that do not. Please Do not write from an online sourcearrow_forward
- Lichens are; A symbiotic association between a fungus and a photosynthetic algae A symbtiotic association betweeen a fungus and a plant Non-vascular plants similar to mosses which can be found growing on treesarrow_forward(id) Big green blob. Volvox Living or prepared slide Magnification: X 100 What is the function of the stigma in protists such as Euglena and Chlamydomonas? 3-18 Spirogyra Living Magnification: 00 As the world's population increases yearly, do you think algae might be a source of ad- ditional food? Explain your answer. LAB 3 PROTISTSarrow_forwardLichens are said to be composite organisms made up of two very different types of organisms: usually a fungus and an alga (or in a few lichens, a fungus and a Cyanobacterium). (Alga is the singular of algae.) How do these two types of organisms work together to become a functional composite organism? That is, what does each organism provides to the relationship to make it successful? Think about a lichen living on the face of a rock.arrow_forward
- “Lichens are considered good examples of obligate mutualisms”. Comment?arrow_forward"Lichens" are a Mutualistic association of fungi and plants Select one: -of O True estion O False .arrow_forwardIf all of the saprophytic fungi in an ecosystem died, which of the following would be a likely short-term result? Group of answer choices Plants would not be able to absorb nutrients from the soil as effectively Dead plant material would be decomposed more quickly, releasing higher levels of CO2 Less carbon dioxide would be released into the atmosphere because dead plant material would not be decomposed Plants would be unable to absorb nitrogen as efficiently because their root symbiotic fungi would be unable to break gaseous nitrogen apart Plants would be unable to absorb nitrogen as efficiently because their root symbiotic fungi would be unable to break gaseous nitrogen apartarrow_forward
- Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning