Answer:
Homologies - phenotypic and genetic similarities due to shared ancestry
Analogies (homoplastic) - similarities between two species due to convergent evolution instead of descent from a common ancestor with the same trait
In general, organisms that share very similar morphologies or similar DNA sequences are likely to be more closely related than organisms with vastly different structures or sequences. In some cases, however, the morphological divergence between related species can be great and their genetic divergence small (or vice versa).
(plants very different, bc diverged 50 mil years ago)
If internal anatomy, physiology, and reproductive systems are very dissimilar, probably analogous.
The more elements that are similar in two complex structures, the more likely it is that the structures evolved from a common ancestor. If genes in two organisms share many portions of their nucleotide sequences, it is likely that the genes are homologous.:
Answer:
In the given case, it is clear that the sympathetic part of the autonomic nervous system is on in Mr. T. It can be suggested due to the increase in heart rate and appearance of cold and pale skin in the patient's upper body. The sympathetic nervous system is the component of the ANS, which is an extensive network of neurons that monitor's the involuntary processes of the body.
Mainly, the sympathetic nervous system monitors the features of the body associated with the fight or flight response like increasing heart rate, mobilizing fat reserves, and discharging adrenaline. Apart from this, the increased heart rate and vasoconstriction will assist in elevating the patient's blood pressure.
The correct answer is option C, that is, mammals were able to diversify to make use of the variety of habitats that were previously occupied by dinosaurs.
Adaptive radiation refers to the comparatively fast evolution of various species from a single common ancestor. Adaptive radiation usually takes place when a species enters a novel area and distinct traits influence its existence. An illustration of adaptive radiation is the progression of mammals after the annihilation of dinosaurs.
They work on the premise of a fluid interacting with a turbine
Answer:
We should not touch electrical appliances with wet hands because our body is a good conductor of electricity and since we may get electric shocks. ... Also one should avoid getting wet while touching electrical appliances because water is also a conductor not pure one though
Explanation:
