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Aliun [14]
3 years ago
6

How does a horn form?

Biology
1 answer:
Artist 52 [7]3 years ago
4 0
A horn results when glaciers erode three or more aretes, usually forming a sharp edged peak
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What is a pesticide?
Bad White [126]

Answer:

D

Explanation:

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3 years ago
protoporphyrin ix fluorescence and photobleaching during interstitial photodynamic therapy of malignant gliomas for early treatm
Marysya12 [62]

Prior to therapy, a high PpIX fluorescence was observed in three patients; however, after iPDT, this fluorescence was entirely photobleached. These patients' viable tumor sections had high PpIX concentrations (mean PpIX uptake per tumor: 1.4-3.0 M).

<h3>Briefing:</h3>

However, no or just minimal PpIX uptake (0-0.6 M) could be seen in the remaining two cases. Strong PpIX uptake patients demonstrated therapeutic response and long-term clinical stabilization (no progression at 29, 30, and 36 months); the remaining two patients experienced early treatment failure (death after 3 and 9 months).

<h3>Describe fluorescence:</h3>

Two steps make up the chemical process of fluorescence first, a chemical fluorophore such a protein or carotenoid absorbs shorter-wavelength light (excitation), and then some of the absorbed energy is released as longer-wavelength light (emission).

To know more about Flourescence visit:

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4 0
1 year ago
On the Galapagos islands Darwin observed tortoises with a dome and saddle shaped shells. How did Darwin observation of these tor
Nataly [62]

Hi

It is true that on the Galapagos islands Darwin observed tortoises with a dome and saddle shaped shells, you can see both in attached image.

Darwin observed that Galapagos Tortoises had the shells with different shapes depending on the Island they live, For example: The tortoises with saddle shaped shells were able to reach up to eat leaves of plants while the tortoises with dome shaped shells would not reach up and they would eat food from on ground sources. This made him think that the differences in tortoise shell is also a strong evidence that indicates that how tortoises have adapted themselves to better get their food as per the available resources and how they have evolved from same ancestral specie into two different species. This point also helped him in proposing the theory of evolution by natural selection.

Hope it helps!

5 0
3 years ago
Example of bad conductor is​
Kaylis [27]

Bad electric conductor :

Wood

Bad heat conductor:

Rubber

7 0
3 years ago
Read 2 more answers
I BEG U PLZ HELP ANYONE. My test finishes in 15m so plz answer.
Sloan [31]

Answer:

Explanation:

1st to 3rd one

2nd to the first one

3rd to the 2ndone

4th to the 7th one

5th to the sixth one

6th to the 5th one

7th to the 4th one

8 0
3 years ago
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