Small fish absorb minute amounts of pesticides.
The birds of prey consume many fish to satisfy their dietary needs. The pesticides accumulate and concentrate in the bird, continued exposure overwhelm the predator.
O grupo de mesmo filo, pois há mais espécies de variados gêneros e, consequentemente, mais famílias, mais ordens... Na relação Reino -> Filo -> Classe -> Ordem -> Família -> Gênero -> Espécie, quanto mais próximo de reino, mais abrangente e variada é a classificação.
Answer:
Duplication of Hox genes made increased morphological complexity possible.
Explanation:
- The hox gene cluster consists of a group of related genes that function to controls the basic body plan of an embryo and also define the head to the tail axis.
- These are mainly responsible for ensuring the correct position of al the structures in the body.
- Since the anterior-posterior axis all the vertebrates are established by these hox genes this points out to the fact that common information is needed amongst all he vertebrates to define the various morphological variations that occurred.
- The hox genes have shown duplication in the course of evolution and they have undergone a four-fold duplication which has led to the generation fo different structures in the various organism and is thus responsible for the increased morphological complexity.
Answer:
The best wavelengths of visible light for photosynthesis fall within the blue range (425–450 nm) and red range (600–700 nm). Therefore, the best light sources for photosynthesis should ideally emit light in the blue and red ranges.
Explanation:
hope dis helps you !
The first has to be changed to dwarf star, and the second one is the effect of solar winds. Hope this helps!
