<span><span>Fluency
disorder
</span>Fluency
disorder is a communication disorder that involves discontinuous flow and
timing of speech. It is mostly seen in children who are learning to speak. Physical
tension, negative reactions, and avoiding of speaking situations work together
with this disorder. Individuals with this disorder display repetition of words,
sound extensions and long pauses when speaking. For the question given above, a
12-year-old student who says "i-i-i-i want i-i-i-ice c-c-c-cream" is
exhibiting fluency disorder.</span>
<span>Organisms that use photosynthesis (or utilize photons and nutrients from the abiotic environment to survive)</span>
Answer:
The correct option is d) head.
Explanation:
Bicoid protein works as a transcription factor. It enters the nuclei of the embryos in early segmentation, where it activates the hunchback gene. In Drosophila, embryonic development begins at the time of fertilization. The sperm enters the mature oocyte through the micropile, a structure located in what will be the anterior region of the egg. Bicoid and hunchback mRNAs, protein products are critical for the formation of the head and thorax. Already in the early stages of oocyte development, certain mRNAs are located in specific regions of the oocyte: mRNA molecules encoding the Bicoid protein are preferentially located in the anterior region of the oocyte. Moderate levels of the bicoid protein are necessary to activate the formation of the thorax (i.e., the expression of the hunchback gene) but the formation of the head requires high concentrations of Bicoid, the promoters of a specific gap gene of the head must have sites of low affinity binding for Bicoid, so that this gene can be activated only in extremely high concentrations of Bicoid.
The lack of Bicoid protein affects the formation of the head and other structures in the anterior region of the oocyte.
Answer:
To survive. Drinking is very important and is required for animals and organisms to survive. It also keeps us hydrated.
