Evolution is when living things go through changes. This occurs through natural selection.
Answer:
Nucleus
Explanation:
every cell has a nucleus kind of like a factory has a ceo, does this make sense to you?
Answer:
a. Excretion is accomplished by paired protonephridia with flame cells in every segment of the body. True
Most anelids have structures called metanephrids or protonephridia. Both structures are homologous to the kidneys and have the function of excresion, A pair are present in every segment of the body.
b. If the organs in one segment fail, the organs of another segment will still function. False
It is false because all segments are interrelated and have different functions depending on their location.For example, the first segment is where the sensory appendages are, such as the antennae and the eyes. The second segment is where the mouth is. There are a series of parapod segments to move, collectively called metameres and ends in a terminal portion called pigidium, where the anus is located.
c. Annelids possess both circular and longitudinal muscles that produce waves of contraction that are propagated down through the points eBookseries of segments.True
True because anelids have circular and longitudinal muscles that serve to function the hydrostatic skeleton.
d. Segmentation has allowed for specialization in the anterior of the annelid body, which has provided for a more sophisticated nervous system. True
True because the segmentation allows to have a nervous system formed by a ventral nerve cord provided with ganglia and lateral nerves in each segment.
Answer:
The correct answer is D. MMDA
Explanation:
MMDA stands for 3,4-Methylenedioxymethamphetamine. It is a psychoactive drug and is used as a recreational drug. After taking a dose of this drug it shows its effect in 30-45 minutes. People taking these drugs produce a feeling of euphoria and loving worth due to which they feel to hug each other again and again.
It also increases body temperature by making the release of many neurotransmitters in the body which results in vasoconstriction and as a result heat production occurs and heat dissipation is reduced. It also leads to thirst, sleepy feeling, and appetite loss. So the right answer is D. MMDA
