Answer: Oxygen
Explanation: Oxygen is the gaseous by product of photosynthesis.
Carbon dioxide + water + energy from light produces glucose and oxygen.
Sunlight energy.
6CO2 + 6H2O ------> C6H12O6 + 6O2
the excess oxygen they produced during photosynthesis is contributed directly to the oxygenation of the Earth.
Answer:
A. Column 1
Explanation:
The information in column 1 is correct for all galaxy but information in coulmn 2 and Column 3 has some incorrect information about Elliptical galaxy.
Information about spiral galaxy is correct in all three columns that spiral galaxy has pinwheel shape and made up of several stars, dust and gas particles hold together by gravitational force.
Elliptical galaxy has round or oval shape and made up of mostly old stars and do not have much gas and dust particles which are hold together by gravitation force and not by electrical force.
Irregular galaxy has no defined shape as of spiral and elliptical and are made up of large amount of gas and dust and forms new stars which allow them to look brighter.
Hence, information in coulmn 1 is correct for all the galaxy.
Answer:
C. Carbon dioxide + water + heat
Explanation:
Answer: The correct answer is- A.The plant might have a gene that is similar to a human gene.
Probe can be described as the segment of DNA or RNA (generally 100-1000bp in length) that is designed and radioactively labelled to detect the presence of nucleotide sequences, which are complementary to it.
In this question, the probe is synthesised using sample of human DNA but it also hybridizes with the plant DNA.
This indicates that plant genome has certain DNA sequence or gene that is similar to the gene in the human DNA.
Thus, option A) is the right answer.