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777dan777 [17]
4 years ago
13

The brightness of a star as it appears from Earth without the effect of the atmosphere is called

Biology
1 answer:
natta225 [31]4 years ago
5 0
C apparent magnitude
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the german physician robert koch provided evidence to support the germ theory of infectious disease. koch isolated bacteria from
densk [106]

He did this by experiment with anthrax. Using a microscope, Koch analysed the blood of cows that had failed of anthrax. He marked rod-shaped bacteria and supposed they caused anthrax.

<h3>What does anthrax do to a human?</h3>

Anthrax induces skin, lung, and bowel disease and can be fatal. Anthrax is analysed using bacterial cultures from infected tissues.

There are 04 kinds of anthrax: cutaneous, inhalation, gastrointestinal, and injection.

Anthrax is cured by antibiotics.

Thus,  He kept rod-shaped bacteria and supposed they caused anthrax.

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7 0
2 years ago
Which best describes meiosis
topjm [15]

Answer:

B

Explanation:

It couldn't be A because meiosis for a spermatocyte results in only 2 male gametes, and it couldn't be C because asexual reproduction is mitosis only

4 0
4 years ago
What helps to transport ions,nutrients,and waste
drek231 [11]
The cell membrane helps to transport ions, nutrients, and waste.
8 0
4 years ago
A pharmacist has two vitamin-supplement powders. The first powder is 10% vitamin B1 and 30% vitamin B2. The second is 15% vitami
Basile [38]

Answer:

560 mg of powder 1 and 160 mg of powder 2

Explanation:

Let "X" denotes weight of powder 1 added to the new mixture and  "Y" denotes weight of powder 2 added to the new mixture

Total weight of vitamin B1 in the mixture is equal to 80 mg

Total weight of vitamin B2 in the mixture is equal to 200 mg

Equation 1

0.1 X + 0.15 Y= 80

Equation 2

0.3 X + 0.2 Y= 200

Let us simplify the above two equations, we will get

10 X + 15 Y = 8000\\3X + 2Y = 2000

2 (10 X + 15 Y = 8000), 20X + 30 Y = 1600015(3X + 2Y = 2000), 45X +30Y = 30000\\25 X = 14000\\X = 560

Substituting value of X in equation 2 we get

0.3 * 560 + 0.2 Y = 200\\0.2 Y = 200 - 168\\Y = 160

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4 years ago
Opinions on eugenics? also with facts &lt;3
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What? is this for points or?
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