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riadik2000 [5.3K]
3 years ago
5

I will give brainliest

Biology
1 answer:
9966 [12]3 years ago
7 0

Answer:

D.

Explanation:

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3. Which statement concerning an ecosystem is correct?
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C) It involves interactions between biotic and

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Ecosystems need energy imput, need both consumers and producers, and can exist on land, lakes, rivers and oceans.

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Some of the chemicals that make up living organism have only few structures (like DNA) other have many different structures (lik
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Hox genes are sometimes called "master switches". They have acquired this nickname because a single Hox gene will turn on (or of
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Answer: B. False

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“Hox” genes are a highly conserved group of genes, all of whose products are transcription factors bearing a specific domain (called a ”homeodomain”). The transcriptional activity of a large amount of genes relevant to embryonic development is controlled by regulatory sites which are able to bind to this domain. Changes in the transcriptional activity of even a single Hox gene may thus have dramatic downstream effects on the phenotype, as this will result in several further genes having their transcription either enhanced or suppressed.

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3 years ago
Design an experiment where you would determine how quickly lactaid works to break down milk sugar
xxMikexx [17]

Answer:

Gather 11 Cups And then fill each cup with 5 ounces of whole milk, next is take the first cup to add a known quantity of lactaid. As A Control take another cup and do not add any lactaid. After 1 Minute, pour a known quantity of benedicts into cups of milk. Record the colour ( blue is the least amount of glucose progressing to green, then yellow, orange, red and brick/red brown). Take another cup of milk and then add the lactaid and wait for 5 minutes... Next is add the benedicts. Record the color, repeat steps 7 - 10 adding 5 minute each time until there are no cups left ( 15 minutes, 20,25,30,35,40,45) .

For the last is graph the data and forms conclusions ..

  • This is the right answer.
  • Hope it helps.
6 0
2 years ago
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