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shusha [124]
3 years ago
15

Which organelle or structure is absent in plant cells? which organelle or structure is absent in plant cells? mitochondria perox

isomes centrosomes microtubules golgi vesicles?
Biology
2 answers:
USPshnik [31]3 years ago
5 0

Answer:

actually its cilia

Explanation:

i took the quiz

Kryger [21]3 years ago
4 0
Centrosome. Fungi and plant lack centrosome
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Compaction & cementation of sediments form ___________ rocks.
____ [38]

Answer:

The answer is sedimentary rock.

Explanation:

At the same time the particles of sediment begin to stick to each other - they are cemented together by clay, or by minerals like silica or calcite. After compaction and cementation, the sedimentary sequence has changed into a sedimentary rock.

Hope that it helps!

6 0
3 years ago
The root word cyto means _____. heart cell bladder disease
Mice21 [21]
The root word cyto means "cell".
3 0
3 years ago
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Some organisms reproduce sexually. Other organisms reproduce asexually. What are some benefits of asexual reproduction?
grigory [225]
I’m pretty sure it’s D. but i could be wrong.
3 0
3 years ago
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Assume that the genes for tan body and bare wings are 15 map units apart on chromosome II in Drosophila. If a tan-bodied, bare-w
Fittoniya [83]

Answer:

WILD TYPE= 425;

TAN-BARE= 425;

TAN= 75;

BARE= 75

Explanation:

Fifteen map units apart implies that 15% of the offspring are products of recombination.

Out of 1000 offsprings, therefore 15% of 1000= 0.15 × 1000=150

150 offsprings are products of recombination.

100-15 =85%

Therefore, 85% of the offspring are parental.

So, if tan-bodied, ware-winged female was mated with wild-type male resulting in F1 phenotypically wild-type females were mated to tan-bodied, bare-winged males.

The expected number of offsprings that are tanned but have normal wings would be:

Wild type= 50% of 850

0.50 × 850 = 425

Tan-bare= 50% of 850

0.50 × 850 = 425

tan= 50% of 150

0.50×150= 75

Bare= 50% of 150

0.50×150=75

7 0
3 years ago
1. Skeletal muscle fibers do not have gap junctions, but heart muscle cells do. Why do you think there is this difference? In ot
Mumz [18]
<h2>Gap junctions </h2>

Explanation:

  • Skeletal muscle also called as voluntary muscle, is anchored to bone by tendons and is used to effect skeletal movement in activities such as locomotion and maintaining posture
  • Muscle associated with heart is called cardiac muscle is also an involuntary muscle but is more akin in structure to skeletal muscle
  • Both cardiac and skeletal muscles are striated, they contain sarcomeres and are packed into highly regular, repeating arrangements of bundles
  • Skeletal muscle do no have gap junctions because they are not single cells
  • The gap junctions, which are protein-lined tunnels, allow direct transmission of the depolarizing current from cell to cell, across the chambers of the heart, so that the cells contract in unison
  • Because of the way these gap junctions function, the cardiac muscle cells are said to be electrically coupled
4 0
3 years ago
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