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Serjik [45]
3 years ago
5

What famous scientist was born today, november 7th?

Biology
1 answer:
cestrela7 [59]3 years ago
5 0
Norton David Zinder...... american biologist and geneticist who studied the species of Salmonella
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Which end of an earthworm contains an organ that can detect smells?
NNADVOKAT [17]
<span>The anterior end of an earthworm contains an organ that detects smells. Evidence of this is the way the earthworms responded to the ammonia. The earthworms backed away from the ammonia when it was waved near their anterior end, but they did not respond at all when the ammonia was waved near their posterior end.</span>
7 0
3 years ago
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Eukaryotes can have both the mitochondria and chloroplasts.<br> True<br> O False
Bingel [31]
Mitochondria and chloroplast are two organelles found in eukaryotic cells. Chloroplast is only found in plants while majority of eukaryotic cells have mitochondria. Even though both organelles are found in eukaryotic cells, both mitochondria and chloroplast have characteristics often found in prokaryotic cells.
8 0
3 years ago
What is something that is not alive that responds to a stimulus?
8_murik_8 [283]

<em>Answer:</em>

  • <em>DAISY</em>
  • <em>Stimulus: sunlight</em>
  • <em>Response: flower opens during the day, closes at night</em>

<em></em>

  • <em>CAT</em>
  • <em>Stimulus: perceived threat e.g. nearby dog</em>
  • <em>Response: aggressive behaviour: makes a hissing noise, arches its back, hair stands on end</em>

<em></em>

  • <em>HUMAN</em>
  • <em>Stimulus: Red Dwarf</em>
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4 0
3 years ago
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What is the term used to describe the increase in the number of individuals in a population?
taurus [48]

Answer: population density

Explanation:

4 0
3 years ago
The mechanism that breaks the linkage between linked genes is
gregori [183]

Answer:

Crossing over

Explanation:

Crossing over is the process during which two chromatids of two homologous chromosomes exchange part of their genetic segments. It occurs during the pachytene stage of prophase I of meiosis I.

Linked genes are mostly inherited together and do not exhibit independent assortment. However, when linked genes are present far apart from each other on the same chromosome, crossing over can occur between them to produce recombinant chromatids. Therefore, crossing over can break the linkage and produce recombinant progeny as it occurs during the independent assortment of unlinked genes.

8 0
3 years ago
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