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ololo11 [35]
2 years ago
14

Compare the use of the siphon in clams and squid

Biology
1 answer:
inna [77]2 years ago
7 0

Explanation:

  1. Siphons in Mollusca are tube-like structures in which water (or, more rarely, air) flows. The water flow is used for one or more purposes such as locomotion, feeding, respiration, and reproduction.
  2. The siphon propels the squid through the water in the opposite direction to which the siphon is pointing, much like jet propulsion. To use this jet propulsion, the squid takes in water through the large opening and then closes off the opening.

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If the blue eyed kid has brown eyed parents what is their genotype
Sloan [31]
BB or Bb because brown eyes are dominant and blue eyes are recessive.
8 0
3 years ago
If a TRNA had a AGC anticodon it could attach a
Contact [7]

A transference RNA (tRNA) is an adapter molecule that decodes a codon messenger RNA (mRNA) during the synthesis of a polypeptide chain. These molecules (tRNAs) play a fundamental role during translation.

  • If a tRNA had an AGC anticodon it could attach a codon having the sequence UCG.

  • During translation, tRNAs act at specific sites in a ribosome to synthesize a polypeptide chain (i.e., a protein) from an mRNA sequence.

  • The anticodon of the tRNA binds by base complementary to a triplet of nucleotides or 'codon' in the messenger RNA (mRNA) during protein synthesis (i.e., translation).

  • According to the base complementarity rules, in RNA, Adenine always pairs with Uracile (Thymine in DNA), whereas Guanine always pairs with Cytosine.

Learn more in:

brainly.com/question/10014731?referrer=searchResults

5 0
3 years ago
Which two animals use echolocation? bats and humans bats and dolphins dolphins and humans dolphins and butterflies.
Mandarinka [93]

The two animals which use echolocation are bats and dolphins.

Both hunt their prey by articulating high-pitched sounds and listening for the echoes.

<h3>What is echolocation?</h3>

Echolocation is a method used by bats, dolphins and other animals to select the location of objects using reflected sound. This allows the animals to move around in pitch darkness, so they can guide, hunt, identify friends and enemies, and avoid obstacles.

Thus, bats and dolphins are two animals that use echolocation.

To learn more about echolocation click here:

brainly.com/question/3942501

6 0
2 years ago
Read 2 more answers
Darwin was influenced to propose evolution by natural selection based on changes that farmers are able to obtain by means of ___
jonny [76]

By means of natural selection.

I think natural could be the word

4 0
3 years ago
The cell theory eventually replaced the concept of spontaneous generation as a result of what experimental evidence?
Arisa [49]

<u>Answer:-</u> <em>Option C </em>- evidence that microorganisms cannot grow in boiled broth when new organisms were not allowed to enter.

<u>Explanation:-</u>

  • <em>Theory of spontaneous generation</em> stated that the living organisms can be created from non living matter. However, this theory was disapproved and replaced by the <em>cell theory</em> which stated that all living organisms are created from cells and new cells arise from pre-existing cells.
  • There were several experiments conducted by various scientists to disapprove the theory of spontaneous generation however, the experiment that was most successful to do so was the one conducted by <em>Louis Pasteur</em> in 1859.
  • <em><u>Description of the experiment:-</u></em>

-In his experiment, Pasteur boiled a meat broth in a flask (it was known that boiling the broth kills the micro organisms) and then heated the neck of the flask to bend into a S- shape.

The purpose of the S shaped neck was to allow the air to enter into the flask but not the micro-organisms as the micro organisms will settle by gravity in the neck and not reach into the flask.

<em>observations of the experiment</em> :-

1. Pasteur observed that even though the air entered the flask no micro organisms were growing in the flask.

2. Further,when he tilted the flask so that the broth came in contact with the part of the neck where the air borne microorganisms could have settled he was able to observe microbial growth in the flask.

These observations laid the theory of spontaneous generation to rest and proved that <em>organisms can only grow in the presence of pre-existing cells </em>which in this case were the microorganisms.  

4 0
3 years ago
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