Q: What type of behavioral rhythms are linked to the yearly cycle of seasons? Read this paragraph and choose the correct option from the provided answers: Choices: - annual - biannual - monthly - circannual A:
circannual

(Question)
Q: Humans use many compounds that were first discovered or derived from living organisms as medicines: secondary plant compounds, animal toxins, and antibiotics produced by these? Read this paragraph and choose the correct option from the provided answers: 47.2 The Importance of Biodiversity to Human Life Humans use many compounds that were first discovered or derived from living organisms as medicines: secondary plant compounds, animal toxins, and antibiotics produced by bacteria and fungi. More medicines are expected to be discovered in nature. Loss of biodiversity will impact the number of pharmaceuticals available to humans. Crop diversity is a requirement for food security, and it is being lost. The loss of wild relatives to crops also threatens breeders' abilities to create new varieties. Ecosystems provide ecosystem services that support human agriculture: pollination, nutrient cycling, pest control, and soil development and maintenance. Loss of biodiversity threatens these ecosystem services and risks making food production more expensive or impossible. Wild food sources are mainly aquatic, but few are being managed for sustainability. Fisheries' ability to provide protein to human populations is threatened when extinction occurs. Biodiversity may provide important psychological benefits to humans. Additionally, there are moral arguments for the maintenance of biodiversity. Choices: - bacteria and tumors - molecules and fungi - tumors and fungi - bacteria and fungi A:
(Answer)
bacteria and fungi

Ques: Q: From what did the first proto-oncogenes arise? Read this paragraph and choose the correct option from the provided answers: Choices: - spores - carcinogens - bacteria - viral infections A:
Ans: viral infections

(Q).
Q: What rigid external structure protects shellfish and other animals and provides points of attachment for the muscles that move the appendages? Read this paragraph and choose the correct option from the provided answers: Choices: - claw - cocoon - membrane - exoskeleton A:
(A).
exoskeleton

Ques:Q: Diffusion is an effective transport mechanism over the spatial scales typically found at what level? Read this paragraph and choose the correct option from the provided answers: Choices: - electromagnetic - molecular - atom - cellular A:

Ans:cellular

Question: Q: What process allows plants to convert light energy into sugars and energy for food? Read this paragraph and choose the correct option from the provided answers: Chemical reactions are occurring all around you. Plants use sunlight to drive their photosynthetic process and produce energy. Cars and other vehicles burn gasoline in order to power their engines. Batteries use electrochemical reactions to produce energy and power many everyday devices. Many chemical reactions are going on inside you as well, especially during the digestion of food. Choices: - respiration - glycolysis - digestion - photosynthesis A:
Answer:
photosynthesis