Answer:
Life is based on carbon; organic chemistry studies compounds in which carbon is a central element. The properties of carbon make it the backbone of the organic molecules which form living matter. Carbon is a such a versatile element because it can form four covalent bonds.
Explanation:
Answer:
The precise definition of pH is "the negative common logarithm of the activity of hydrogen ion in solution". For practical purposes, the activity is approximated as concentration in moles/L: pH = - log 10 ([H+]) .
Explanation:
Although the operation of natural selection requires that genotypes differ in fitness, for some geneticists it seems easier to understand natural selection than fitness. Partly this reflects the fact that the word “fitness” has been used to mean subtly different things. Here I distinguish among these meanings (e.g., individual versus absolute versus relative fitness) and explain how evolutionary geneticists use fitness to predict changes in the genetic composition
Answer:
Red maple tree seeds are dispersed by the wind during spring and summer time that are found in fields,woods,and wetlands.
Explanation:
Red maple tree is the most common wide spread deciduous tree that are mainly found in eastern and central North America.This tree mainly grows in dry soil,in swamp region.This tree is the state tree of Rhode island.
This plant require different mechanism of dispersion that allows their seed to disperse from one place to another.
Seed dispersal prevents parent plant from having to share resources like water,nutrient,light etc.
Seed dispersion of red maple tree allows it to receive light for growth after germination.
En la reproducción sexual, los descendientes son distintos entre ellos y a sus progenitores. No se produce ninguna nueva variedad genética, pero sí nuevos genotipos (combinaciones de genes). Durante la meiosis se producen gametos, células sexuales con la mitad de cromosomas que las células somáticas.
