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slavikrds [6]
2 years ago
8

Please help im tryna get a good grade please

Biology
1 answer:
ExtremeBDS [4]2 years ago
3 0

Answer:

The correct answer is "B. when the lithosphere slides downhill due to gravity".

Explanation:

Ridge push is a proposed driving force for plate motion in plate tectonics that occurs at mid-ocean ridges as the result of the rigid lithosphere sliding down the hot, raised asthenosphere below mid-ocean ridges.

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The region of a Drosophila embryo with a low concentration of bicoid protein will develop into the _____. a) abdomenb) male flow
joja [24]

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.

6 0
3 years ago
After 8 weeks on the different diets, the scientists collected the following data on the two groups of mice:
Alona [7]
Do you have choices?
6 0
3 years ago
What do you think would happen if there was more glucose (sugar) than available NAD+? Explain.
EleoNora [17]

Answer:

n people who have developed diabetes, glucose builds up in the blood, resulting in hyperglycemia. ... And, too much sugar in the bloodstream can cause other types of damage to body tissues, which can increase the risk of heart disease and stroke, kidney disease, vision problems, and nerve problems in people with diabetes.

Explanation:

8 0
3 years ago
What would happen to our moon if gravity ceased to exist?
Readme [11.4K]

Answer: A

Explanation: gravitation keeps moon in circular orbit.

Without gravitational force Moon would move in

Linear path.

8 0
3 years ago
This is the chemical reaction that occurs during photosynthesis; identify which of these is a product in this chemical reaction.
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Are their any multiple choice answer on a paper?

8 0
3 years ago
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