Hlp points! which describes chromatids? pigments that absorb the energy in sunlight identical daughter cells doubled rods of condensed chromatin identical strands of chromosomes

Which of the following is not a symptom of desertification? a) decrease in salt content of the soil b) lowering of the water table c) reduced surface water d) increased soil erosion e) loss of native vegetation

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important

What causes darkening of the skin as melanin production increases