Answer:
It is given and we know that if balloon vine bugs and golden rain tree bugs prefer fruits from either host plant. Then the change in the food preference leads to reproductive isolation which is sympatric isolation
There is the ongoing rapid evolution of bugs in relation to the seed defense structures of their host. Rapid evolution in bug populations that feed on recently introduced sapinds is grounded with an ancestral pattern of coevolution between the bugs and the defenses of sapinds.
Answer:
faced a struggle for survival
Explanation:
The woolly mammoths became extinct, unlike the other species, because the woolly mammoths faced a struggle for survival due to changing of environmental conditions. Global warming is the main cause of extinction of woolly mammoth which destroy their habitats about 10,500 years ago. The environmental conditions are not favourable for them so they faced struggle for survival which causes extinction of woolly mammoth.
<span>Mitosis is a process of cell replication because in this process a parent cell will double its content (DNA,organelles, cytoplasm) and then separate them in to two identical cells. The replication is </span><span>the ability of a cell making two exact replicas of its DNA.
Another example of cell replication is meiosis.
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Covalent bonds share electrons and ionic bonds transfer them.
Answer:
D. Sulfur
Explanation:
Electrons are filled in shells. Oxygen has a total of 8 electrons while sulfur has a total of 16 electrons. Out of the total eight electrons, the first shell has two electrons while six electrons are filled in the “s and p” orbits of the second shell giving the outer shell a configuration of "2s2, 2p4".
Likewise, out of the total 16 electrons of sulfur, the last 6 electrons are filled in "s" and "p" orbits of the third shell. Sulfur has a total of six electrons in its outer most shell "3s² 3p⁴". Since the electrons present in the outer most shell are available for chemical reactions and determine the chemical nature of the atom, oxygen and sulfur should exhibit the same chemical properties.