food vacuole or granule:- used to contain food for digestion .
contractile vacuole :- used to remove excess water.
follow me .....☺️☺️☺️nice study
Answer:
B) There is an increase in the number of giraffes with long necks in areas of Africa where low-growing trees have died
Explanation:
The directional selection is one of the ways of the natural selection in which the natural selection selects or favours the most extreme trait of the species and the extreme trait show higher fitness than the normal or average trait.
In the given question, the case of Giraffe necks shows directional selection as the normal length of the neck is not favoured by the environment but the extreme trait that is long neck is favoured by the environment and the selection shifted to that level.
Thus, Option-B is the correct answer.
So is there a paragraph or some story
So please make it clear
Answer:
The genotype is described as the genes contained in an organisms genetic makeup.
Explanation:
The genetic information contained in the cell nucleus DNA is called genotype. This information resides in the DNA -whose molecules are dispersed in the form of chromatin- which are organized to form chromosomes during cell division.
DNA fragments constitute genes, that contain all the information that determines the anatomical and functional characteristics of a living organism.
Learn more:
Genotype, genes, phenotype brainly.com/question/911764
