A 25-year-old housewife presents to the clinic for evaluation of paralysis in her face. She has a history of an upper respiratory infection 2 weeks before the onset of these symptoms. She states that her face is drooping and that she is unable to close her eye. On physical examination you note that her forehead is smooth on the right side her palpebral fissure appears widened and her nasolabial fold appears flattened and she is drooling. Based on this information what is the most likely diagnosis?

An anthropologist finds a fossil that is 4 million years old. Its pelvis suggests it walked upright. Which species could the specimen belong to?Australopithecus africanus
Australopithecus afarensis
Homo habilis
Homo erectus

When exposed to bright sunlight, some people involuntarily sneeze. This reaction is known as a photic response. It is controlled by a single gene with two alleles, H and h. A man and a woman who sneeze when exposed to bright sunlight are both heterozygous for the photic response trait. Draw a Punnett Square using the allele symbols H and h to show the expected genotypes of the man and woman’s biological children. Identify all possible phenotypes of the offspring and their expected percentages.

Which feature is found most often in prokaryotic cells?A) plasmid
B) flagella
C) cytoplasm
D) cell membrane

Which event occurs in photosystem I? A. Water molecules are broken apart B. Light energy excites electrons C. Oxygen is released as waste D. Electrons are transferred to ferredoxin

Please help!High School Earth and Space Science Semester B (EdOptions Academy users)

Course Activity: Comparing Energy Resources

Part D

Management of natural resources can affect the sustainability of human populations. For example, consider an effort to decontaminate a small village’s water supply. This effort is projected to increase the carrying capacity from an initial population of 400 people (P = 400) to 450 people (K = 450) during the course of 10 years (x = 10). Use the simulation to determine the growth rate r of the population in this village. Round your answer to the nearest whole number. (Hint: Use the tool's zoom feature to get a closer look at the curve.)

(view image for graph)

Part E

Technological advancements can help make consumption and management of natural resources more sustainable, as discussed in part C. As technology enhances renewable, sustainable energy sources, how will this likely affect the carrying capacity and growth rate of the human population over time?

Part F

Read this below about biodiversity, and then answer the following question.

“The Midwest is helping to pioneer the biofuel movement in the United States. Burning biomass—a natural resource—for fuel doesn’t emit additional CO2 into the atmosphere. However, biofuel production reduces the area’s biodiversity because corn, which is a primary source of biomass, is overplanted. Grasslands and fields once inhabited by a large variety of flowers, grasses, insects, and pollinators are being cleared as the demand for corn increases. The impact of eliminating these species and decreasing the area’s biodiversity then spreads as other plants and crops that relied on the insects and pollinators are threatened. These negative consequences can then magnify throughout the ecosystem.”

If an ecosystem is no longer able to sustain its biodiversity, what potential impact could that fact have on the carrying capacity and growth rate of the human population over time? As you answer, think about how the energy is transferred through an ecosystem.

Part G

Write one to two paragraphs describing the relationship between the management of natural resources, the sustainability of the human population, and biodiversity. Use your work from parts A through F to guide you.

Which of the following occurs in prokaryotes but not in eukaryotes?A) post-transcriptional splicing
B) concurrent transcription and translation
C) translation in the absence of a ribosome
D) gene regulation