Long-term fertilization of plant communities often results in increased species richness.   True  False

List three factors that are contributing to the decline of pollinator populations

Explain the mechanisms for which the leaf water potential would be more negative at midday than at pre-dawn. Figure 2. Pre-dawn and midday leaf water potential (Ψleaf) for the two species at different dates throughout the year.

TRUE or FALSE: Elephants help transport seeds to new locations which helps to expand the plant populations. *

Intraspecific competition is a competition between members of the same species and is commonly observed in crop plants. Table 6.2 shows the results of a greenhouse experiment which examined the effects of density on the germination and growth of barley. Plants were grown for two weeks in 10- cm diameter pots kept in identical environmental conditions and watered regularly. At the end of the experiment the plants were cropped by cutting the stems at the soil surface. Explain why knowledge of the effects in density is important to the crop farmer.

The figure below shows the degree of stomatal opening in three plant species during the course of a single 24-hour day. stomatal opening graph Comparing Species A and Species B in the figure above, which statement below is correct? Select one: Neither Species A or Species B are likely to be a CAM plant Species B is likely to be a CAM plant Species A is likely to be a CAM plant

Intraspecific competition is a competition between members of the same species and is commonly observed in crop plants. Table 6.2 shows the results of a greenhouse experiment which examined the effects of density on the germination and growth of barley. Plants were grown for two weeks in 10- cm diameter pots kept in identical environmental conditions and watered regularly. At the end of the experiment the plants were cropped by cutting the stems at the soil surface. In the given context, can you explain thoroughly the meaning of plant density that this passage is talking about?

In response to warmer spring temperatures, a plant species is flowering earlier in the year than it would have historically. However, its primary pollinator, the bumblebee, has not been as responsive to temperature changes and continues to emerge at the same time as usual. As a result, peak floral displays have finished prior to pollinator emergence. This change in plant-pollinator interactions is an example of: a.Uncoupling of interdependent species b.Sympatric speciation c.Heterochrony d.Interspecific evolution

The figure below shows the degree of stomatal opening in three plant species during the course of a single 24-hour day.   Comparing Species A and Species B in the figure above, which statement below is correct? Species A and Species B are similar at preventing water lost by transpiration Species A is better at preventing water lost by transpiration Species B is better at preventing water lost by transpiration

please Describe the data in Figure 2.   Figure 2. Pre-dawn and midday leaf water potential (Ψleaf) for the two species at different dates throughout the year.