Answer:
When diverse molecules and objects are brought together, they generate a chemical, which causes sickness. Forest fires can occur spontaneously or as a result of human activity. Natural factors include severe droughts and a lack of precipitation. Campfires or the usage of a flare gun can be used to create man-made causes.
Answer: they allow air to enter lungs and also permits air into the body
Explanation:
Globin 1 and globin 2 genes of insects are understood to have diverged approximately 170 million years ago, through duplication, from a common globin gene ancestor. The two genes that code for haemoglobin have conserved regions; oxygen-binding and heme- regions. Globin 2 gene has lost the intron region that is still present in the globin 1 gene. The percentage divergence is 7.2% with 20 varying nucleotides.
The correct answer is Parents pass their physical traits to their offspring; those offspring with traits that help them survive in their environment are able to reproduce.
Explanation:
The modern theory of evolution explains the mechanisms that make organisms change. One of the main ideas this theory proposes is that organisms with traits that help them survive or reproduce have higher chances to pass their genes and traits to new generations. This mechanism makes certain traits to be favored and contributes to the evolution of organisms because after multiple generations certain traits will prevail while others will be eliminated.
Moreover, this theory specifies genes in an organism are not acquired or modified during its life but these are the results of the traits passed to the organism by its parents and evolution occurs only after a long time or multiple generations. According to this, the first option is the correct one.
I don't know much about it but i think it is when <span>When you crosses 2 plants of the same pure lines parentage, the resulting F1 is termed as true-breeding plants.
</span>True-breeding plants can also be produced by <span> selfing </span> (or self crossing) flowers form a pure line plant. When seeds from this fertilization are planted, they will give rise to homologous-homogeneous population.
HOPE I HELPED U ^﹏^
