Agroup of students is doing a project on a lake ecosystem. the lake looks suspiciously green. no sunlight penetrates through. what impact could this situation have on the lake's ecosystem?
the aquatic animals will be killed due to an increase in the dissolved oxygen content.
the aquatic animals will be killed due to a decrease in the dissolved oxygen content.
the aquatic animals will thrive due to an increase in the dissolved oxygen content.

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

nb

explanation:

kj

correct answer: false

while planning water activities, it is very important to consider the weather, because if we do not plan and are going for a surf, then it might be that the hurricane came and drown us or may carry us to long distance from where we can not come back. there are many reasons to take information about the weather when we are planning any water activities.

hence, the correct answer would be false.