Plss help Discuss ONE effect of heart attack on biological
structure/s, & justify how this impacts normal
function

Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c.ozone layer hole d.increase in sea levels

When proteins are being produced by a cell, scientist say that the genes are question 2 options: activated turned off replicated deactivated

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.