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Lyrx [107]
2 years ago
10

PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS ASAP PLS PLS HELP ASAP THANKS

Biology
1 answer:
Natalka [10]2 years ago
6 0

Answer:

if its biology i think its blocking becouse operators do this in bacterias

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Just by looking at the color of a freshly drawn blood sample, how could you distinguish between blood that is well oxygenated an
Wittaler [7]

Answer:

Explanation:

There are two types of blood that flows through our bodies: oxygenated and deoxygenated. Oxygenated blood is the one that is pumped in the left side of the atrium in the heart. As its name tells us, is the one that is highly with oxygen and low in carbon dioxide. Normally a sample of an oxygenated blood will be very bright in red due to the amount of blood cells in it. Deoxygenated blood is the one that is pumped in the right side of the atrium in the heart. This blood is the one that is low in oxygen and high in carbon dioxide. It is also known as the venous blood. Normally a sample of a deoxygenated blood will be darker almost going on blue.

6 0
3 years ago
The moth species Biston betularia has two color morphs, or variants. One has a speckled white and black color, while the other i
Oksana_A [137]

Answer:

D. Changes in the environment changed each morph's ability to evade predation in different ways.

Explanation:

The moth species<em> Biston betularia</em> has two color morphs, or variants. One has a speckled white and black color, while the other is all black. Over the period of time, the distribution of moths dramatically changed between 1900 and 1950 in such a way that black morph became dominant but speckled morphs became very much declined in abundance. The reasons behind this change was heavy industrial pollution in UK between 1900 and 1950.

When the environment became very polluted, dark and blackish, the speckled moth had more chanced of getting eaten by predators thats why they declined in number  as compared to black morphs. On the other hand, backgrounds of grime and soot made black morphs less visible to the predators and they survived well. This is an excellent example of natural selection that only those specie better survive that have the ability to cope better with adverse environmental fluctuations.

Therefore, option D is best option.

Hope it help!

8 0
3 years ago
Factories and cars release pollutants into the atmosphere. These pollutants can dissolve in the water vapor in the atmosphere. W
stellarik [79]
Acid rain, if I understand the question correctly.
5 0
3 years ago
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PLZ HELP I NEED IT DONE ASAP PLS I AM BEGGING I WILL MARK BRAINLESIET
sleet_krkn [62]

bam...easy...............

7 0
3 years ago
Yardangs are tall, broad peaks that appear in deserts. Weathering and erosion work together to form yardangs. They are produced
fenix001 [56]

Answer:

Either a or d

Explanation:

7 0
3 years ago
Read 2 more answers
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