<span> C - This process is called natural selection. In a species, only the strongest ones survive and then go on to produce offspring and evolve. Having a certain fur colour could act as camouflage for the mice in the wild.
hope this helps.</span>
La proporción fenotípica de la F2, si se cruzan estas dos plantas será 9:3:3:1. Los caracteres domiantes son hoja verde y fruto alargado.
<h3>Cruzamiento doble heterocigota</h3>
El cruzamiento de un doble heterocigota para dos caracteres con domiancia completa producirá una proporción fenotípica de la F2 de 9:3:3:1.
En este caso la proporción fenotípica de la F2 de 9:3:3:1 es igual a 9 individuos de hoja verde y fruto alargado, 3 individuos de hoja verde y fruto redondo, 3 individuos de hoja amarilla y fruto alargado y 1 individuo de hoja amarilla y fruto redondo.
La proporción fenotípica de la F2 puede ser calculada del mismo modo que las observaciones hechas por Mendel al observar el cruzamiento de doble heterocigotas en arveja.
Aprende más sobre doble heterocigotas aquí:
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They break down organic matter into nutrients for other organisms.
<h3><u>What is the role of decomposers in ecosystem?</u></h3>
Saprophytes like fungus and bacteria are decomposers. They rely entirely on the dead and decomposing organic debris to survive. Decomposers are crucial to the ecology because they assist in recycling nutrients so that plants may utilise them again.
The function of a decomposer in the ecosystem is as follows:
- By disintegrating dead plants and animals, they first serve as a purifying force for the environment.
- They aid in the nutrient recycling.
- By allowing the dead to decay, they provide room in the biosphere for new life.
- For the benefit of reuse by producers like crop plants, they assist in reintroducing the various elements to water, soil, and air.
To view more questions about ecosystem, refer to:
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Xylem transports water and minerals from the roots to the leaves of the plant, where it is used in the production of food.
Answer:
D
Explanation:
In photosystems, the reactive center gives of an electrons that are conveyed along a chain of pigments that harness the energy of the electrons to pump H+ ions from the stroma into the thylakoid – hence creating a proton motive force that will be used to generate ATPs by ATP synthase enzyme. Eventually the electrons are passed to NADP+ that is reduced to NADPH (2 electrons per molecule). The photolysis of a water molecule by sunlight gives H+ and O- and 2 free electrons used to replace the lost electrons in the photosystems reactive center. This whole process is referred to as photophosphorylation.