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Bingel [31]
3 years ago
12

I’ll put you as brainliest 10points !

Biology
1 answer:
vredina [299]3 years ago
3 0

Answer:

Part 1:D) Fertilization

Part 2: C) The process combines genes from two individuals into a distinct organism.

Explanation:

99% sure its correct

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Which human action has not lead to significant changes in Earth’s biomes?
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The burial practices of humans have not led to any significant changes in Earth's biome. Matter can not be created nor destroyed. Burial practices lead to burying the dead bodies into the Earth, where they are decayed by the action of several microbes and insects. The organic and inorganic compounds are added to the Earth. 
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58. Which of the following Kingdoms contain multicellular organisms? *
Serjik [45]

Answer:

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One g of fecal matter was suspended in 99 ml saline solution (tube 1). After mixing gently but thoroughly, one ml from tube 1 wa
malfutka [58]

Answer: the cfu/g Gram-negative bacteria in the fecal sample is C = 3.0 × 10^3

Explanation:

We know that; Gram negative bacteria looks  pale reddish in color under a light microscope from Gram staining.

therefore

There are 30 red bacterial colonies counted.

1 mL of from tube 1 was removed and added to tube with 99 mL saline (tube 2) dilution is 1/100.

transferred volume  into the plate is 1 mL.

Now, we have to determine the cfu/g Gram-negative bacteria in the fecal sample

Formula to calculate CFU/g bacteria in fecal sample is expressed as;

C = n/(s×d )

where C is concentration (CFU/g) , n is number of colonies , s is volume transferred to plate , d is dilution factor.

so we substitute

C = 30 / ((1/100) × 1)

C = 30 / 0.01

C = 3000

C = 3.0 × 10^3

THERFERE, the cfu/g Gram-negative bacteria in the fecal sample is C = 3.0 × 10^3

3 0
3 years ago
which of these describes one or more living organism that depends on another living organism to survive?​
Kay [80]

Answer:

Bacteria living in the mouth of a horse

Explanation:

3 0
3 years ago
What does Natural Selection have to do with evolution?
irga5000 [103]

Answer:

natural selection causes populations to become adapted. evolution is natural selection ;)

Explanation:

i took a test:)

4 0
3 years ago
Read 2 more answers
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