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Annette [7]
3 years ago
14

How has society responded to increased cell phone use and overuse of plastic bags? Check all that apply

Biology
2 answers:
iragen [17]3 years ago
6 0

Answer:

A, B, D

Explanation:

atroni [7]3 years ago
5 0

Answer:

A, B, D

Explanation:

Just did the work on edg.

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Scientists have discovered by looking at fossil records that the ancestors of flying squirrels did not have flight membranes and
Assoli18 [71]

they use natural selection because they got separated from their kind and have to make new living also they need to adapt to the environment

7 0
3 years ago
If you treated embryos with a Notch inhibitor how would this affect the specification of venous and arterial endothelial cells?
Alisiya [41]

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.  

4 0
3 years ago
A) Chromosome B) DNA nucleotide C) Codon D) Gene
Gre4nikov [31]
The answer os C
C D B A
4 0
3 years ago
Read 2 more answers
Explain the relationship between cells,tissues,organs, and organ systems
madreJ [45]
Cells are the basic building blocks of life, which can join together to form tissues, while different groups of tissues join together to form organs. These organs are then connected together to form organ systems, such as the digestive system, which includes the stomach, esophagus, intestines and other organs.
5 0
3 years ago
Write a short summary of how to develop a hypothesis about an event.
AveGali [126]

Answer:

a topic that interests you and you have read about it. The information should be used to derive possible answers to what you would like to research on. It can also be found in books from the library and online. Pick a topic that you’d like to know more about. Selecting an interesting topic helps you to generate hypothesis before the study. For example, choose a topic like, why is the percentage of obese women is larger than that of men? This is a topic that may raise a discussion, and the literature of this information will vary. The information in books written by different people will be different.

Explanation:

5 0
3 years ago
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