Answer:
as the question is incomplete i have added the link to full question in ask for detail section.
b) Lysosome
Explanation:
After ingestion of a food particle, pH changes and enzymes contributed by the __Lysosome__ will digest and hydrolyze the ingested particle in the phagocytic vacuole.
Answer:
The DNA double helix unzips.
A strand of RNA is made from a strand of DNA.
The strand of RNA leaves the nucleus.
The strand of RNA moves to the ribosome.
A protein is produced.
Explanation:
During protein production, the messages in DNA are first encoded into mRNA in a process known as transcription. Transcription happens in the nucleus and involves an initial step of unwinding or unzipping of the double helix DNA.
Thereafter, the mRNA produced during transcription is transported from the nucleus to the cytoplasm where it gets attached to the ribosome.
In conjunction with the rRNA and the tRNA, the codons in the mRNA becomes translated into their respective amino acids. The amino acids are then linked by a polypeptide bond leading to the production of protein.
Hence, the correct sequence of event is:
<em>The DNA double helix unzips.</em>
<em>A strand of RNA is made from a strand of DNA.</em>
<em>The strand of RNA leaves the nucleus.</em>
<em>The strand of RNA moves to the ribosome.</em>
<em>A protein is produced.</em>
Answer:
The Caenorhabditis elegans dauer state is a hibernation-like state of diapause that displays a dramatic reduction in spontaneous locomotion.
Explanation:
Mutations affecting the neurotransmitter dopamine, which regulates voluntary movement in many organisms, can stimulate movement in dauers. The movement of quiescent animals is stimulated by conditions that reduce dopamine signaling and also by conditions predicted to increase dopamine signaling.The stimulation of movement by increased dopamine is much more pronounced in quiescent daf-2(−) dauer and dauer-like adult animals.
In C. elegans hermaphrodites, dopamine is produced by eight neurons and signals via at least four dopamine receptors, DOP-1 through DOP-4. In addition, a presynaptic reuptake transporter, DAT-1, removes dopamine from the extracellular space to terminate signaling. In C. elegans, dopamine is best known for mediating the “basal slowing response” in which the animal's movement slows when it encounters food.. Dopamine is thought to be released in response to food and to act on motor neurons to modulate the animal's movement . Animals that cannot produce dopamine fail to slow in response to food and exogenous dopamine slows the movement of animals cultured without food.The response to dopamine in this situation is complex, as the absence of specific dopamine receptors can have either positive or negative effects on movement.
Answer:
It depends what kind of water.
Explanation:
Salt water:
You would need a negative buoyancy.
Fresh water:
You would need a neutral buoyancy.
Please let me know if I am wrong!
