3. Which of the following statement is true for pyramid of biomass? a) The biomass in each trophic level is always more than the below trophic level.
b) The biomass in each trophic level is always less than the below trophic level.
c) The biomass in each trophic level is entirely different compared to below one.
d) Trophic level does not pass energy.

b) The biomass in each trophic level is always less than the below trophic level

Explanation:

In an ecosystem, organisms feed on one another to get energy needed for their cellular functions. This energy called biomass, is transferred when one organism feeds on another. However, only about 10% of biomass is transferred to the organism in the next trophic level because some of these are lost when organisms perform their metabolic activities.

In other words, the BIOMASS decreases with increasing trophic level. According to the pyramid of biomass, biomass in each trophic level is always less than the below trophic level because the organism at the below trophic level lost most of the biomass (about 90%) before transferring to the one above.

The wide range of possible threats has affected the blanding’s turtle population are loss and degradation of wetland and terrestrial habitats , road mortality  and collection.

Explanation:

Destruction and reduction of wetlands can increase risks of mortality for adults and reduce the hatching process. Cultivating the wetlands and the rapid use of fertilizers, pesticides, and herbicides washes degrade aquatic  habitats.The roads and other human activities impacts more on females than males  due to their extensive nesting migrations. It affects the nesting areas and  aquatic habitats.Pet trade also result in severe reductions and  eradication of populations.

In 2009, it was found that 81.2 % of clutches sampled were of turtles. The evidence also shows that female Blanding’s turtles store sperm for later use.