The answer Is the letter D
Answer:
All—yeast, euglena, and paramecium—exhibit heterotrophic mode of nutrition.
Explanation:
Yeast needs to feed on subtrates (or substances) like sugars, euglena can make its food like plants do and also feeds on other food sources, while paramecium feeds on bacteria often.
Answer:
Son las características que tienen los elementos y que varían en forma secuencial por grupos y períodos. Algunas de esas propiedades son: radio atómico, potencial de ionización, electronegatividad, estructura electrónica, afinidad electrónica, valencia iónica, carácter metálico
Answer:
D. Animal cells would not have the materials needed to produce energy in cellular respiration.
Explanation:
Natural selection is the process that result in the adaptation of an organism to environment by means of selectively reproducing changes in its genotype, or genetic constitution. It is the a key mechanism of evolution. Charles Darwin popularised the term "natural selection" contrasting it with artificial selection, which is intentional, whereas natural selection is not.
To make it simple, let's have a group of beetle composing of green and some are brown as an example. here, there is a variation in traits. Since the environment could not support continuous population growth, not all species can reproduce to their full potential. Green beetles can easily be eaten by other species like birds compared to brown beetles. The surviving brown beetles will then generate brown offsprings because their trait has a genetic basis. Since more brown beetles survive and becomes more common in the population, the process continues until all individuals will eventually be brown. so basically, if you have variation, differential reproduction, and heredity, you will have evolution by natural selection as an outcome.
