<h2>Diffuse co-evolution </h2>
Explanation:
The term ‘diffuse co-evolution’ was given by Janzen in 1980 to describe the idea that selection on traits often reflects the actions of many community members, as opposed to pairwise interactions between species
The idea was further clarified by Gould in 1988 by focusing on a variety of ecological and genetic mechanisms that might lead to diffuse co-evolution in response to selection from multiple species
Diffuse co-evolution as a whole can be defined as when selection imposed reciprocally by one species on another is dependent on the presence or absence of other species
In the given example panic grass can live only when the fungus protuberata is present and for Curvularia protuberata to colonize Curvularia thermal tolerance virus must be present so there is a web of multiple species where one species is dependent on other species and that other species in turn is dependent on different species hence referred to as diffuse co-evolution
Answer:
A. Haploid (n)
Explanation:
Conifers do not exhibit double fertilization that forms triploid (3n) endosperm in flowering plants.
Endosperm in conifers develops from the haploid cell of female gametophyte before fertilization. Since the endosperm is formed by the mitotic divisions in the haploid cell (n) of female gametophyte, it is haploid (n) in nature.
Answer:
in the epicenter
Explanation:
In a Venn Diagram that compares and contrasts the different characteristics or features of the produced plants, "cloning" would be in the epicenter. This is because through the process of "cloning" you are basically copying the core genetic makeup of the plant and creating a brand new plant that shares all of the exact same characteristics and features as the plant's whose genetic makeup was used as a baseline.
The ultimate souce of energy for the food chain is solar energy from the sun. It allows plants to convert the solar energy to chemical energy for growth. The growing plants in turn allow heterotropic animals to consume them to obtain energy of their own.
Answer: The fossil is 11459 years old.
Explanation:
Half-life of carbon-14 = 5700 years
First we have to calculate the rate constant, we use the formula :
Now we have to calculate the age of the sample:
Expression for rate law for first order kinetics is given by:
where,
k = rate constant = ![1.21\times 10^{-4}\text{years}^{-1} t = age of sample = ? a = let initial amount of the reactant = 100 g x = amount decayed = 75 g a - x = amount left after decay process = 100 - 75 = 25 g Now put all the given values in above equation, we get [tex]t==\frac{2.303}{1.21\times 10^{-4}}\log\frac{100}{25}](https://tex.z-dn.net/?f=1.21%5Ctimes%2010%5E%7B-4%7D%5Ctext%7Byears%7D%5E%7B-1%7D%0A%3C%2Fp%3E%3Cp%3Et%20%3D%20age%20of%20sample%20%20%3D%20%3F%0A%3C%2Fp%3E%3Cp%3Ea%20%3D%20let%20initial%20amount%20of%20the%20reactant%20%20%3D%20100%20g%0A%3C%2Fp%3E%3Cp%3Ex%20%3D%20amount%20decayed%20%3D%2075%20g%0A%3C%2Fp%3E%3Cp%3Ea%20-%20x%20%3D%20amount%20left%20after%20decay%20process%20%20%3D%20100%20-%2075%20%3D%2025%20g%20%20%3C%2Fp%3E%3Cp%3ENow%20put%20all%20the%20given%20values%20in%20above%20equation%2C%20we%20get%0A%3C%2Fp%3E%3Cp%3E%5Btex%5Dt%3D%3D%5Cfrac%7B2.303%7D%7B1.21%5Ctimes%2010%5E%7B-4%7D%7D%5Clog%5Cfrac%7B100%7D%7B25%7D)
The fossil is 11459 years old.
