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timurjin [86]
3 years ago
7

Which two systems work together to ensure that all cells in the body receive oxygen

Biology
1 answer:
muminat3 years ago
4 0
Respiratory system and Circulatory system :P

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what natural hazard is often caused by human activities and is triggered during and after periods of drought
Gwar [14]

I would say dust storm, From us moving earth.

3 0
3 years ago
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Closing mines has no economic impact on communities.
VladimirAG [237]

Answer:

False. Closing mines has economic impact on communities.

Explanation:

  • Economy is impacted by any hindrance in activities of production,distribution and consumption of any good or services.
  • So, closing mines too has great impact in economic sector of that certain area.
  • In many countries, mining has been the major source of economy and job opportunities for the community people.
  • Closing these mines results in downfall of economy and increased unemployment in that particular community.
5 0
3 years ago
1) How is DNA condensed to form a chromosome?
frosja888 [35]

Answer:

Hello! Here are the answers:

  1. Chromosomes are a highly condensed form of a combination of DNA and protein called chromatin. DNA strands (negatively charged) are tightly wound around these proteins called histones (positively charged) to form chromosomes.
  2. Mechanism genes code for for proteins that govern life processes. These genes or portions of DNA  are called exons. DNA segments between these exons are called introns that strictly code for regulatory proteins and also contain genetic regulatory elements (DNA sequences that control gene expression).
  3. Gene expression is the process of translation of DNA sequences into proteins. The genetic code is the nucleotide sequence in the DNA itself that codes for different amino acids that combine together to form a functional protein.

Explanation:

* 2. The intronic regions are misleadingly referred to as "junk DNA" but introns code for crucial regulatory elements that control gene expression.

* 3. The genetic code determines the sequence of amino acids in various proteins.

7 0
4 years ago
A box is at rest on the ground. An unbalanced force acts on the box and causes it to start moving. The box moves 10 meters in 2
n200080 [17]
The box stopped moving because the force stopped pushing . The average speed of the box would be 5 meters per second
3 0
3 years ago
PLEASE ANSWER THIS... IF A PLANT IS GROWN IN A WINDOW, SHELF AND CABINET. 1. WHAT IS THE TEMPERATURE OF WATER? 2. FOAM HEIGHT AF
OleMash [197]

Answer:

temperature of water will be 37degree celcius

Explanation:

5 0
3 years ago
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