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Alenkinab [10]
3 years ago
7

What is Blumenbach's 1775 Classification

Biology
1 answer:
kirill [66]3 years ago
4 0

Answer:

In the second edition of On the Natural Varieties of Mankind, Blumenbach used Bildungstrieb to explain the degeneration of an original type of human into the five varieties—which he later classified as Caucasian, Mongolian, Malayan, Ethiopian, and American—found around the world

Explanation:

Id.k if this is wat u were looking for so mb if its not

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A researcher is using a modified version of FRAP. She has devised a technique that allows her to label all the peripheral membra
asambeis [7]

Answer:

The correct answer is option B.

Explanation:

FRAP or Fluorescence Recovery After Photobleaching refers to a method of finding the kinetics of diffusion in living cells, generally with the assistance of fluorescence microscopy. The method comprises the labeling of a particular cell constituent with a fluorescent molecule, imaging that cell, photobleach a small section of the cell, then image the recovery of fluorescence with time.  

In the given question, as the fluorescence has recovered back to the bleached region. The scientist can come to the conclusion that the membrane of the cell and the peripheral membrane proteins do not always belong together.  

3 0
3 years ago
A waxing moon *
Marysya12 [62]

Answer:

Between a New Moon and a First quarter Moon.

(And I think when the entire face of the moon is completely illuminated. But I'm unsure about this part.)

Explanation:

6 0
2 years ago
When working with radioactive materials you must use radiation detection instruments. Which of the following instruments require
vampirchik [111]

Geiger-Muller tube is instruments requires you test three times the background of the work area.

<u>Explanation</u>:

These detectors are gas filled detectors and hence requires time for responding to the value. This time is taken because during this period it collects the electric charges and features of the electric circuit. It also gets stabilized during this period. This device has thumb rule i.e one must wait or hold for at the least 3 times the time constant before getting the precise and accurate reading. The time constant order is 10 seconds for the ionization chamber but for the Geiger counter it can vary from seconds to greater than 20 seconds

6 0
3 years ago
A change in the temperature of the core would affect all of the following except:
Pani-rosa [81]
Answer is D: the current make up of the crust

Changes in the temperature of the Earth's core will do the following:
1. Cause the outer core to solidify 
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2. Cause the mantle to solidify
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3 years ago
AP Environmental Science
Masja [62]
What are the other choices ????
7 0
3 years ago
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