The correct answer is A. Color blindness.
This causes the eye not only to be unable to see the Red color, but also the Green color, which leads to color blindness in people.
Answer:
d. all endothelial cells would be venous
Explanation:
The Notch signaling pathway is a cell signaling system which consist basically of 4 NOTCH genes ( NOTCH1, NOTCH2, NOTCH3, and NOTCH4) each of them having the information to build a particular cell membrane receptor protein.
It has been demonstrated in zebrafish embryos that Notch signaling are highly determinant factors during vascular development, and a key function of these genes was specifically to regulate the differentiation of arterial fate in endothelial cells.
Notch signaling-deficient embryos showed a loss of expression of arterial markers such as ephrinB2 from arterial vessels with an accompanying expansion of venous markers into normally arterial domains. In contrast, embryos in which Notch signaling had been ectopically activated, meaning an activation out of "proper" place (where not expected, e.g. venous endothelial), exhibited the contrary phenotype, this is a suppression of vein-specific markers with ectopic expression of arterial markers in venous vessels.
To summarize, when Notch is supressed (in this case inhibited with a specific Notch inhibitor) arterial fate of endothelium is not followed, and venous fate is stablished. Thus, endothelial cells (those expected to form venous tissues but also arterial ones) would specified as venous.
<span>The answer is Monarch butterflies migrating southward. This describes the innate animal behavior, </span>Monarch Butterflies perform one of the longest migration known in insects. Starting from North America, they spend their summer in North America, and migrate south to Mexico for the winter.<span>
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The correct answer is - the ocean animals deposited in its layers.
The sedimentary rock on the image is clearly an organic sedimentary rock because it contains fossils of marine animals. This type of sedimentary rocks form when sediments and organic matter come in contact, are merged, or rather naturally cemented so they are stuck together, and the end result is a sedimentary rock with organic matter involved in its composition. The organic sedimentary rocks are much more common in places where there was once a marine life, and much rarer with organic matter from terrestrial animals in it, though there are some rich deposits from that type in certain places as well.
An herbicide is a weed killer. It is very harmful to plants, so the correct answer would be D. The herbicide would kill the native plants.
