<span>The RNA world is the hypothesized format of chemical life that existed prior to our current DNA and RNA world. In the RNA world, RNA molecules formed in the primordial soup and began to evolve by self-replication and mutation. This led to increased complexity, natural selection of "better" RNA and diversification of RNA based life.</span>
Answer:
C- Impair the ability to consider the consequences of acting impulsively
Explanation:
Alcohol consumption leads to an increase in the level of dopamine released in the brain, thus increasing pleasure. This increase in levels of dopamine can lead to impairment in reasoning and minor memory loss. With these factors, impulsive actions are more likely to occur. Aggressive behavior might eventually settle in, when euphoria eventually becomes depression.
Answer:
If they follow Mrs.Gren
Explanation :Mrs.Gren which stands for Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion and Nutrition. If it doesn't have these characteristics then its non- living.
Answer:
The correct pair is A: "apicomplexans—parasites of animals"
Explanation:
- Euglenophyta is a group of unicellular, eukaryotic organisms. They are small, free-living forms, or parasites that present different feeding mechanisms and behaviors, such as heterotrophy, autotrophy, or mixotrophy.
- Dinoflagellates are unicellular, flagellated, free-living protists that might form colonies. Most of them are autotrophic organisms but some of them are heterotrophic, or mixotrophic. In these last cases, dinoflagellates can feed on other dinoflagellates, protozoans, or diatoms. They can also be parasites.
- Entamoebas are endoparasitic organisms with no mitochondria as an adaptation of living in environments with low oxygen concentration.
- Apicomplexa is a unicellular, protist group. They have medical and economic importance as they are<u> animals</u> and human parasites. They have an apical complex that helps them to fixate to the host cell and release a substance that provokes an invagination in the host membrane. This invagination allows the parasite to get into the host cell.
