Hey there,
Answer:
Hope you are asking for this - <span>Endosymbiosis.
Hope this helps :D
<em>~Top♥</em>
</span>
A hypothesis needs to be validated or rejected, so the first sentence is true because it's his point of view that he wants to investigate. It wouldn't be truth if it's thesis (not hypothesis), because he would have no proof for that.
Different isotopes of the same element have the same number of protons in their atomic nuclei but differing numbers of neutrons. Radioisotopes are radioactive isotopes of an element. They can also be defined as atoms that contain an unstable combination of neutrons and protons, or excess energy in their nucleus.
Sponges are in the Porifera phylum
Answer:
Answer 4: Plants do respond differently to different colors of light being shone on them, because chlorophyll reflects green light and absorbs blue and red (therefore, blue and red are useful for photosynthesis, but green isn't).