Answer:
1. The chromosomes arrive at the cell poles.
2. The mitotic spindle disassembles.
3. The vesicles that contain fragments of the original nuclear membrane assemble around the two sets of chromosomes
4. Separate the nuclear DNA from the cytoplasm.
Answer:
Option C = Ozone
Explanation:
The Percentage of given gases in atmosphere:
Oxygen = O₂ = 20.95 %
Nitrogen = N₂ = 78.08%
Argon = Ar = 0.93%
Ozone = O₃ = 0.000004%
Nitrogen is most abundant gas in atmosphere while oxygen is second most abundant gas. The nitrogen and oxygen are present in diatomic form such as O₂ and N₂.
Water vapors are also present but the percentage vary according to location. In hot humid areas the percentage of water is 0- 4% and it is third abundant gas.
The percentage of other gases in atmosphere are given below:
CO₂ = 0.0360%
Ne = 0.0018%
He = 0.0005%
CH₄ = 0.00017 %
N₂O = 0.0003%
H₂ = 0.00005%
Answer:
Energy Flow in Ecosystems. Ecosystems maintain themselves by cycling energy and nutrients obtained from external sources. ... The low rate of energy transfer between trophic levels makes decomposers generally more important than producers in terms of energy flow.
Explanation:
Answer:
D) It decreases water movement.
Explanation:
Humus is known as part of the soil formation. It is characterized by various qualities some of which include containing nutrients such as nitrogen. It is also characterized by its ability to retain water content or soil moisture. Humus is made from the decays of plants wastes such as leaves.
Hence, in this case, the correct answer is Humus is important because "It decreases water movement."