B.) Angioplasty
An angioplasty is when the blood vessel can be widened by a balloon that is blown up in the blood vessel and sometimes a stent is put in place to keep it open.
Answer:
Cost: competition for mates, competition for resources
Benefit: better protection from predators (ex. a fish in a school of fish has greater chances of not getting eaten because of the large number of other fish)
Crab in Rocky shore By rock pools - deep in ocean as they get older
Typical day - just shuffle along the rocks
To get food - from rock pools use claws to get fish
As they get bigger, they eat protozoa, diatoms and smaller crabs that live on the ocean floor. When the crabs reach 2 to 4 years of age, they move to deeper water where they join the adult crabs that eat worms, clams, mussels, snails and sea urchins. They also eat sand dollars, barnacles, fish parts and algae.
Hard shell is their protection and claws as a defends mechanism
PredAtors - possibly birds while on shore but bigger fish on ocean floor
Some possibilities of why a population decreasing are:
-invasive species
-deforestation
-pollution
-habitat loss
-change in food chain/web
-oil spills
Hope this helps!
I think option D would be evidence of global warming.
Two major mechanisms are causing sea level<span> to </span>rise<span>. First, shrinking land ice, such as mountain glaciers and polar ice sheets, is releasing water into the oceans. Second, as ocean temperatures </span>rise<span>, the </span>warmer<span> water expands. Trapped within a basin bounded by the continents, the water has nowhere to go but up.
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Which ends up being Global warming.
Hope this helps :)
