Answer:
This structure has not been highly beneficial for the organism
Explanation:
Vestigial structures are cells, tissues, and/or organs that have no apparent function. Vestigial structures are retained during the course of the evolution, but often they are degenerate and/or atrophied (due to disuse). In general, these structures are homologous to anatomical structures that play a specific role in evolutionarily related species. Some examples of vestigial structures include, among others, the presence of the appendix in humans and wings in flightless birds.
Answer: B. Neurotransmitters; C. Enzyme components; E. Hormones
Explanation: Aminoacids have a variety of functions because they can create proteins. These long and complex molecules perform important roles in different biological processes: they are responsible for the formation of enzymes and hormones. In neurotransmitters, the glutamate appears to be related to functions of the brain, like learning and memory. Other functions of the aminoacids are regeneration of muscular cells, have a role in imunology, growth of tissue, production of collagen and others.
Answer:
The correct answer is A (Not correct pair).
Explanation:
The <u>Organ</u> (not the organelle) consists of a group of tissues that work together to do a job. For example, the Stomach.
Answer:
The HIV genome is originally a RNA based genome.
Explanation:
Human immunodeficiency viruses are the one which infects human over time. The virus infects human body cells and progresses towards immune system failure which creates life threat for a patient. The disease is incurable till date but the effects can be slowed down by the medication and treatments. The disease in contagious and spreads by transfer of infected blood.
