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kipiarov [429]
3 years ago
15

What problems would you expect to observe in an ecosystem without producers?

Biology
1 answer:
Len [333]3 years ago
4 0

hi! producers are the main source of energy for consumers because they turn sunlight into chemical energy. without producers, no ecosystem would be able to survive because consumers would no longer have energy needed to live. hope this helps!

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How is DNA organized in a human cell?
drek231 [11]

Answer:

Humans have nearly 30,000 genes that determine traits from eye color to risk for hereditary diseases. Those genes sit along six feet of DNA, which are organized into chromosomes and stuffed into each and every human cell. Chromosomes are coiled into loops and then organized into many large domains called topologically associating domains (TADs).

Explanation:

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3 years ago
After performing a gram stain of a mixed culture of gram positive and gram negative cells, you shout: "oops, i forgot the iodine
zalisa [80]

Gram's staining is a differential staining technique that employs a primary stain like crystal violet and a counter stain like safranin along with the decolourizing agent alcohol and a mordant called the Gram's iodine.

Iodine is a mordant added after the primary stain. It fixes the stain by combining with it to enchance the staining ability. This forms an insoluble crystal violet iodine complex appearing purple under the microscope. These microorganisms are classified as Gram positive.

If addition of iodine is skipped, crystal violet is not fixed on the slide and the insoluble complex is not formed. The cells are decolourized by alcohol and are stained by the counter stain safranin making the Gram positive cells wrongly indentified as Gram negative due to its pink colouration. Thus, the slide will show all the cells as pink coloured Gram negative cells.

3 0
3 years ago
10 POINTS !!!!!!!!!!!!!!!!!
Ann [662]

Answer:

  1. Two environmental factors that influence the shape of proteins are pH and temperature.
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I hope this helps!

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The force of attraction btwn same substances

Explanation:

6 0
3 years ago
Hey guys could you help me out here please?
Molodets [167]

Answer:

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Explanation:

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