Un investigador observa dos plantas de la misma especie, pero con diferentes adaptaciones. Las plantas A tienen hojas color verde, raíces muy profundas con vellosidades de mucha densidad. Las plantas B, por el contrario, tiene raíces muy poco profundas, la densidad de sus vellosidades es menos densa, aunque el color de las hojas es igual. ¿Qué explicación puede dar el investigador en cuanto a que el color de las hojas de ambas plantas no haya cambiado?

The explanation that the researcher can give for the fact that the color of the leaves of both plants has not changed is that receive the same radiation from the sun .

Explanation:

English:

A researcher observes two plants of the same species, but with different adaptations. Plants A have green leaves, very deep roots with very dense hairs. Plants B, on the other hand, have very shallow roots, the density of their villi is less dense, although the colour of the leaves is the same. What explanation can the researcher give for the fact that the colour of the leaves of both plants has not changed?

Option for this question:

The coloration of leaves in plants depends on the interaction of sunlight with photosynthetic pigments, such as chlorophyll, found in their leaves.

From the idea that both plants are of the same species, it can be inferred that both have the same composition of photosynthetic pigments in their leaves, the amount of sunlight they receive being the factor that makes them have the same coloration, without changes.

The adaptations they possess and which differentiate them are the roots, which are responsible for the absorption of water and nutrients from the soil, which does not influence the color of the leaves.

Learn more:

Photosynthesis in a leaf

assuming that your periodic table has eighteen columns, you should highlight   the four elements in the third column from the left of the table.

neutral atoms of elements after calcium contain d electrons. the energy of d orbitals of a particular main shell lies between the energy of the s and p orbitals of the next main shell. for example, electrons in the have energy higher than those in the orbital while lower than those of the orbital.

by the aufbau principle, electrons fill orbitals one at a time, starting from those of the lowest energy. the orbital is therefore filled right after orbitals and before orbitals.  

potassium has electron configuration and calcium . the s orbital of a main shell holds a maximum of two electrons. the next element would thus have the electron configuration and satisfy the requirements.

a neutral atom of the element contains three electrons on top of the most recent noble gas element. it should thus be placed in the third column of the periodic table. both scandium and yttrium would satisfy the conditions. an aufbau diagram indicates that the 4f orbital is filled before the 5d. however, it appears that exceptions exists for both lanthanum and actinium. neutral atoms of the two d-block elements also demonstrate the and should be highlighted as well.