The weather man said the relative humidity will be high today
Benthic organisms are those that dwell on the bottom of the sea or on the ocean floor. These include sponges, lobsters, crabs, clams, worms, etc. From the given choices, only the tuna will not qualify being benthic. Thus, the answer is letter D.
In F2 the bonding is pure covalent, with the bonding electrons shared equally between the two fluorine atoms. In HF, there is also a shared pair of bonding electrons, but the shared pair is drawn more closely to the fluorine atom. This is called a polar covalent bond as opposed to the pure covalent bond in F2.
At the very end of the cladogram at the very top of a clade in the middle of a clade along the main trunk of the cladogram
"Mesotherms could be outcompeted for prey by similarly sized endotherms in similar niches. Mesotherms may also require more energy compared to ectotherms, which would put them at a competitive disadvantage if energy was a limiting factor for growth."