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-Dominant- [34]
3 years ago
6

What is a dorsal notochord?

Biology
1 answer:
dimaraw [331]3 years ago
5 0

Answer:

a long rodlike structure that develops dorsal to the gut and ventral to the neural tube. The notochord is composed primarily of a core of glycoproteins that are encased in a sheath of collagen fibers wound into two opposing helices. 

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Ccording to Sir Isaac Newton, gravity depends on two factors. What are they?
KiRa [710]

Answer:

Mass and distance.

Explanation:

Gravity is considered to be a universal force of attraction which acts between all objects that has both mass, energy and occupy space. Therefore, it acts in such a way as to bring objects together.

Additionally, the gravity of earth makes it possible for all physical objects to possess weight.

Newton's law of universal gravitation states that the force of attraction (gravity) acting between the Earth and all physical objects is directly proportional to the Earth's mass, directly proportional to the physical object's mass and inversely proportional to the square of the distance separating the Earth's center and that physical object.

According to Sir Isaac Newton, gravity depends on two factors and these are mass and distance.

4 0
3 years ago
Which of the following can upset the balance of an ecosystem?
seropon [69]

Answer:

All of the above.

Explanation:

  • Light and Water both are among the ecological factors .
  • Ecological factors are those components of environment which determine the variation in the chemical and physical nature of different ecosystem.
  • A balanced ecosystem needs to have all its ecological factors in adequate amount.
  • Thus, too much water, too much light, not enough light or not enough water , any of these condition can upset the balance of ecosystem.
5 0
3 years ago
BRAINLIESTTTT ASAP!!!<br><br> Describe two paths carbon dioxide can take through the carbon cycle.
Alik [6]
2 ways are 1 it can rise into the atmosphere or 2 it can be absorbed into the oceans.
6 0
3 years ago
Read 2 more answers
Relative to the transcription start site, where would the promoter and terminator be located?
Paladinen [302]

Answer:

Promoter is located upstream and terminator is located downstream relative to the transcription start site.

Explanation:

Transcription start site is the site from where the transcription starts which is denoted by +1. The sequence of nucleotides which is present backword to them called upstream sequence and nucleotide sequence which is present in the forward direction of transcription start site are called downstream sequence.

Promoter sequences are present upstream to the transcription start site and are denoted with a minus sign and terminator sequence is present downstream to the transcription start site.

5 0
4 years ago
Which of the following processes that absorbed nitrates and ammonia into organic nitrogen? *
Bumek [7]
The answer is Nitrification.
5 0
3 years ago
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