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Kobotan [32]
3 years ago
6

PLEASE HELP!! I WILL MARK MOST BRAINLIEST ANSWER

Biology
1 answer:
Zanzabum3 years ago
6 0
Answer:
           Most zoologists believe that echinoderms share a common ancestry with hemichordates and chordates because of:
1. The deuterostome characteristics that they share (see figure 1),
2. An anus that develops in the region of the blastopore.
3. A coelom that forms from outpockets of the embryonic gut tract (vertebrate chordates are an exception).
4. And radial, indeterminate cleavage. 

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In working with Drosophila it is common to use a balancer stock to maintain mutations of interest. The balancer chromosomes are
spin [16.1K]

The inversion would suppress recombination.

In Drosophila, the mutations which are recessive are lethal or recessive sterile. Balancer chromosomes are used to hold the deleterious mutations in stable shares as well as to save you recombination with the aid of suppressing.

Chromosomal inversions prevent the recuperation of recombinant chromosomes in ways.

  • the crossovers do now not shape within the location of inversion breakpoints, due to the fact synapsis is inhibited.
  • unmarried crossovers' inner inversions result in aneuploid gametes that cannot give upward push to normal progeny.

Drosophila is a genus of flies, belonging to the own family Drosophilidae, whose participants are often referred to as "small fruit flies" or (much less regularly) pomace flies, vinegar flies, or wine flies, a connection with the feature of many species to linger around overripe or rotting fruit.

Learn more about Drosophila here brainly.com/question/14458439

#SPJ4

6 0
1 year ago
Order the parts of the digestive system to trace the path of a bolus of food from ingestion to excretion. Use the correct answer
n200080 [17]

Answer:

A) Food enters the mouth

B)  Esophagus

C)  Stomach

D)Cecum

E) Feces is expelled

Explanation:

The food is ingested through the mouth and and then it is transported through the esophagus to the stomach from where it reaches the small and large intestine and then it is finally expelled as undigested or waste foo product.

Based on the above brief explanation, the flow chart depicting food movement are as follows -

a) Food enters the mouth

b) Esophagus - known as the food pipe

c) Stomach

d)Cecum - it is a small pouch connected to small and large intestine.

e) Feces is expelled through rectum

6 0
3 years ago
Henri becquerel is credited with the discovery of:
hodyreva [135]
The Discovery<span> of Radioactivity. In 1896 </span>Henri Becquerel<span> was using naturally fluorescent minerals to study the properties of x-rays, which had been</span>discovered<span> in 1895 by Wilhelm Roentgen</span>
3 0
3 years ago
Put in order the steps of the process associated with a course assignment
Fynjy0 [20]

Here is the methodology associated with the process of a course assignment:

1. Faculty member develops assignment and grading rubric.

2. The assignment is posted in the class.  

3. The student reads assignment and rubric.      

4. Student completes the assignment.

5. Student submits the assignment.

6. Faculty reviews submitted assignment and compares to grading rubric.

7.  Faculty grades assignment.

8. Student receives grade and feedback.

8 0
3 years ago
A group of scientists are observing a new found cell. They want to classify it as either a prokaryotic cell or a eukaryotic cell
valkas [14]
  • The question can be solved by using the difference between eukaryotic and prokaryotic cell.
  • Prokaryotic cell does not have a well defined nucleus. The nuclear material lies naked in the cytoplasm. It is known as nucleoid. While, eukaryotic cell has a well defined nucleus with a nuclear membrane.
  • Prokaryotic cell has a single chromosome while eukaryotic cell has more than one chromosome.
  • Finally, prokaryotic cell do not have membrane-bound cell organelles while eukaryotic cell have membrane-bound cell organelles.

Hope you could get an idea from here.

Doubt clarification - use comment section.

5 0
2 years ago
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