Category: M&E 3: Food Webs (MS)

Analyze and interpret data to provide evidence for the effects of resource availability on organisms and populations of organisms in an ecosystem.

Interdependent Relationships in Ecosystems, IR 1: Ecosystem Interactions (MS), IR 3: Ecosystem Stability (HS), IR 5: Survival (HS), Life Science, M&E 2: Anabolism/Catabolism (HS), M&E 2: Metabolism (MS), M&E 3: Cellular Respiration (HS), M&E 3: Food Webs (MS), M&E 4: Aerobic/Anaerobic Resp. (HS), M&E 4: Biogeochemical Cycles (MS), M&E 5: Matter/Energy Cycles (HS), M&E 6: Biogeochemical Cycles (HS), Matter & Energy in Organisms/Ecosystems, S&F 1: Cells (MS), S&F 1: DNA to Proteins (HS), S&F 4: Stimuli Response (MS), Structure and Function

Different Enzymes to Digest Different Plant Substrates

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The fungal cultivar of leaf-cutter ants produces specific enzymes in response to different plant substrates SUMMARY: Leaf-cutter ants and a fungus called Leucoagaricus gongylophorus have a symbiotic relationship. The ants harvest plant material for the fungus to “eat” and then the ants feed off of the gongylidia. These swollen parts of the hyphae are no… Continue reading Different Enzymes to Digest Different Plant Substrates

Inheritance & Variation of Traits, Inheritance 1: Behavior and Reproduction (MS), Inheritance 1: Mitosis (HS), Inheritance 4: Population Genetics (HS), Interdependent Relationships in Ecosystems, IR 1: Ecosystem Interactions (MS), IR 2: Affecting Biodiversity (HS), Life Science, M&E 3: Food Webs (MS), M&E 5: Changing Ecosystems (MS), Matter & Energy in Organisms/Ecosystems, Natural Selection & Evolution, NSE 1: Evolution Evidence (HS), NSE 2: Evolution Factors (HS), NSE 3: Trait Selection (HS), NSE 4: Adaption (HS), NSE 4: Fitness (MS), NSE 5: Natural Selection (MS), NSE 5: Population Flux (HS)

De novo origins of multicellularity in response to predation

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De novo origins of multicellularity in response to predation SUMMARY: Chlamydomonas are common, single-celled green algae that are flagellated and can move around. They’re a strange cross between plants and protists. In this study, scientists subjected chlamydomonas to predation by paramecia (common freshwater ciliates) and observed that after about 750 generations, the chlamydomonas took on… Continue reading De novo origins of multicellularity in response to predation

Chemical Reactions, CR 2: Energy in Reactions (HS), E 1: Energy Flow (HS), Earth Science, Earth's System, Energy, ES 1: Materials/Energy Flow (MS), ES 4: Carbon Cycling (HS), ES 5: Life on Earth (HS), Interdependent Relationships in Ecosystems, IR 1: Ecosystem Interactions (MS), IR 3: Ecosystem Stability (HS), Life Science, M&E 3: Food Webs (MS), M&E 4: Biogeochemical Cycles (MS), M&E 5: Matter/Energy Cycles (HS), M&E 6: Biogeochemical Cycles (HS), Matter & Energy in Organisms/Ecosystems, Physical Science, W&C 2: Biomes (MS), W&C 2: Future Climate (HS), Weather and Climate

Moss-Cyanobacteria relationship in the boreal forest

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Moss-cyanobacteria associations as biogenic sources of nitrogen in boreal forest ecosystems SUMMARY: Moss, cyanobacteria, and the trees of the boreal forest share a complicated relationship. This article first focuses on the nitrogen cycle, addressing the various sources of nitrogen and the factors (both abiotic and biotic) that affect nitrogen fixation. Turns out, temperature, water availability,… Continue reading Moss-Cyanobacteria relationship in the boreal forest

Earth Science, Earth's System, ES 1: Geochemical Cycles (HS), ES 1: Materials/Energy Flow (MS), ES 2: Hydrological Cycle (MS), ES 3: Earth's Resources (MS), ES 3: Hydrological Cycle (HS), ES 4: Carbon Cycling (HS), ES 5: Life on Earth (HS), Interdependent Relationships in Ecosystems, IR 1: Ecosystem Interactions (MS), M&E 3: Food Webs (MS), M&E 4: Biogeochemical Cycles (MS), M&E 5: Matter/Energy Cycles (HS), M&E 6: Biogeochemical Cycles (HS), Matter & Energy in Organisms/Ecosystems, W&C 2: Biomes (MS), Weather and Climate

Protozoa and plant growth: the microbial loop in soil revisited

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Protozoa and plant growth: the microbial loop in soil revisited (NOT OPEN ACCESS) SUMMARY: This is an in-depth review on the rhizosphere and the interactions between protozoa, nematodes, and plant roots. LESSON COMMENTS: This can be read like a textbook for students. Alternatively, teachers can assign relevant sections. The rhizosphere can be grown and observed… Continue reading Protozoa and plant growth: the microbial loop in soil revisited