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denis-greek [22]
3 years ago
12

Pls ans this qa i will mark u as brainlist ans​

Biology
1 answer:
ryzh [129]3 years ago
7 0

ans b

Explanation:

milk teeth are less than permanent teeth

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When one form of energy is converted into another form of energy; such as the conversion from a sensory stimulus energy to actio
Afina-wow [57]
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3 years ago
Describe one observation that supports the theory that
PIT_PIT [208]

Answer:

The presence of organelle DNA in mitochondria and chloroplast supports the  theory that mitochondria and chloroplast originated as independent prokaryotic organism.

Explanation:

  • The more well documented and generally accepted theory for the origin of eukaryotic organelles is Endosymbiotic Theory. (Margulis 1970).
  • Recent evidences justify that organelles have originated from the endosymbiotic association  of ingested aerobic and and photosynthetic prokaryote, the precursors of mitochondria and chloroplast  respectively.
  • Molecular data have played an important role in supporting the xenogenous origin rather than autogenous origin of organelles.
  • The idea of independent existence of mitochondria and chloroplast are: they are replicators; they carry genetic information; they have protein synthesising machinery; they have ribosome of prokaryotic type.
  • The prokaryotic or bacterial origin of mitochondria and chloroplast is supported by the fact like their DNA is simple ,closed and circular with single point of origin; DNA controls the synthesis of  their rRNA and tRNA etc.; They have their own ribosome; antibiotic specificity.

3 0
4 years ago
Name two differences between a monocot and a dicot.
marusya05 [52]

Answer:

Dicots and Monocots differ from dicots in four distinct structural features: leaves, stems, roots and flowers.Whereas monocots have one cotyledon (vein), dicots have two.

Explanation:

I believe this is correct go ogle helped. lol.

3 0
3 years ago
North Carolina ranks second in production of Christmas trees in the United States. Scientists in North Carolina use living cells
Snowcat [4.5K]
B, because it's not an advantage for something to be expensive and time consuming
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3 years ago
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Why are Gram-negative bacteria more resistant than Gram-positive bacteria to damage by certain chemical agents like lysozyme?
Katen [24]

Answer:

Explanation:

Gram-negative bacteria are more resistant to lysozyme and antibiotics than Gram-positive bacteria, because they have a largely thick impermeable cell wall (peptidoglycan), an outer lipid membrane that causes reaching of antibiotics to bacteria harder.

Gram positive bacteria have thin lipid peptidoglycan cell walls.

4 0
3 years ago
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