Answer:
Natural selection is an important contribution to the theory of evolution because it increases an individual's ability to survive and compete and reproduce.
Explanation:
Answer:
Option B, temperature, water and soil nutrients
Explanation:
Abiotic factors are those which do not have life in them and are unable to exhibit the functions of a living organism such as locomotion, reproduction, feeding, respiration etc.
All the set of factors in option B i.e temperature, water and soil nutrients are not living things as they do have any of the characteristics of living beings and thus they can be considered as abiotic factors.
While in all other options except option B, i.e option A, C, and D factors like animal, grass and animal life are biotic factors as they have life and are able to perform functions of living beings.
Thus, abiotic factors associated with ecosystems are temperature, water and soil nutrients
Genetics: that deals with the heredity and are varnation of organisms.
and
Enviroment: that condition by which one is surrounding.
"I think"
Answer:
Furthermore, what kingdoms have no cell walls? Protists that are similar to animals do not have cell walls at all. Plant- and fungi-like protists have cell walls that are similar to plants. Other protists have a unique cell wall that is different from cell walls seen in other eukaryotic kingdoms.
Explanation:
hope this helps : )
C. esophagus. it does not secrete any enzymes. its just do peristalsis. which is a rhythmic contractions and relaxations of muscles to push food along the gut
