Electromagnetic waves .
radio waves , microwaves, infrared , optical , ultra violet, xrays ,and gammarays
Answer:
B) There is an increase in the number of giraffes with long necks in areas of Africa where low-growing trees have died
Explanation:
The directional selection is one of the ways of the natural selection in which the natural selection selects or favours the most extreme trait of the species and the extreme trait show higher fitness than the normal or average trait.
In the given question, the case of Giraffe necks shows directional selection as the normal length of the neck is not favoured by the environment but the extreme trait that is long neck is favoured by the environment and the selection shifted to that level.
Thus, Option-B is the correct answer.
Answer:
I believe it would be the first option
Photosynthesis and respiration are the opposite processes, basically speaking. Photosynthesis gets its name from light-dependent reactions, which involve photolysis of water (breakdown of H2O into oxygen and hydrogen), and then combining hydrogen with small sugar molecules, while also incorporating CO2 into them.
I'm not really sure what this question is about - is it a true or false question? If so, then the answer is true - given that there are fewer bamboo plants in the world (because they cannot grow as fast as pandas can eat them), there won't be enough food for pandas to thrive, and thus they won't survive for much longer.
If you just need to write the words necessary to complete the sentence, then 'on which,' 'is now scarce,' 'about,' and 'their' are the correct answers.
