Identify the dependent and independent variables in the following examples: -The growth of bacterial populations is measured in cold, medium, and high temperatures. -Guinea pigs are kept at different temperatures for 6 weeks. Percent weight gain is recorded. -The diversity of algal species is calculated for a coastal area before and after an oil spill.

A study examined the effects of artificial soil warming of 2.5°, 5.0° and 7.5°C. compared to reference conditions (REF), on the decomposition rates of two tree species, American beech and sugar maple. What can you conclude from the findings given in Fig. 4 (above)?

Beige and black rabbits were introduced into two meadows.  One meadow predominantly consists of volcanic soil and the other predominantly consists of clay soil.  Each rabbit was marked with a dot of blue paint and the pad of his foot.  The number of rabbits released and recaptured one month later are shown in the table below.  Assume the number of rabbits recaptured is a direct reflection of the number of rabbits surviving.    Using the data below, what conclusions can you make regarding the color of rabbits and their survival in different soil types?                                              VOLCANIC SOIL   # released #recaptures % precentage beige rabbits 137 18 13.1% black rabbits 447 123 27.5%                                                 CLAY SOIL   # released # recaptures % precentage beige rabbits 393 54 13.1% black rabbits  406 19 4.7%

# 22 Which is not a mutualistic relationship? Answer Termites with protozoa and bacteria that digest cellulose Snowshoe hare and the Canadian lynx Mycorrhizal fungal filaments in the roots of plants Flowering plants and their insect pollinators Pseudomyrmex ants living on the bullhorn acacia tree ©2014 2021 2021/2/23 09:19

Can you help me giving an example and a hypothesis about this question

Species: fox squirrel Question: What sampling method would you use to estimate N and why?

Use the image below to answer questions 2-3. As part of his series of experiments, Connell removed one species of barnacle from around the other species and examined how well the intact barnacle species survived in different locations along the intertidal zone. The following diagram shows the results of this study. Yes 14444 Does the removal of Balanus affect the distribution of Chthamalus? O No Balanus-removal Sites 10000 t Chthamalus-removal Sites

Imagine you have 3 separate plots each seeded with 3 species, a ruderal, a competitor, and a stress tolerator. Plot A is desert-like with a harsh but stable environment. Plot B has a more moderate climate and better soil but is located on a steep angle and frequently experiences weathering and mudslides. Plot C is also located in a moderate climate with good soil and lacks the frequent disturbances of plot B. Which answer choice correctly identifies where each species would be most successful? Group of answer choices   A: Ruderal, B: Competitor, C: Stress tolerator   A: Ruderal; B: Stress tolerator, C: Competitor   A: Competitor, B: Stress tolerator, C: Ruderal   A: Stress tolerator, B: Ruderal, C: Competitor   A: Stress tolerator, B: Competitor, C: Ruderal

Is green house effect is a natural phenomenon?

Explain the process of biological magnification using a real hypothetical ecosystem to illustrate the process.