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Biology

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Fossils of lobe-finned fishes, which are ancestors of amphibians, are found in rocks that are at least 380 million years old. Fossils of the oldest amphibian-like vertebrate animals with true legs and lungs are found in rocks that are approximately 363 million years old. Three samples of rocks are available that might contain fossils of a transitional species between lobe-finned fishes and amphibians: one rock sample that is 350 million years old, one that is 370 million years old, and one that is 390 million years old. (a) Select the most appropriate sample of rocks in which to search for a transitional species between lobe-finned fishes and amphibians. Justify your selection. (b) Describe TWO pieces of evidence provided by fossils of a transitional species that would support a hypothesis that amphibians evolved from lobe-finned fishes.

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Biology

Kristopher Koch

Which body system works with your digestive system to push your food along through your intestines?

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Biology

Marely Short

a 78 year old patient is taking lizbro for diabetes and Gabapentin for seizures what would a medical coder bill for

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Biology

Rohan Potter

Importance of the pole star?

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Biology

Mylee Chavez

You are going to make cheeseburgers for your family for dinner. What are 3 food safety guidelines you should follow to ensure that the cheeseburgers are safe for your family to eat, and that none of your family members will get any kind of food poisoning?

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Biology

Marvin Michael

When did life start?

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Biology

Aryanna Rodgers

This study is replicated in the Appalachian Mountains with similar results. Which of the following is true? The number of days with poor flower availability increased. The number of days with poor flower availability decreased. Flower availability fluctuated wildly. There was no change in the number of days with poor flower availability.

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Biology

Greta Wallace

What's experiment and hyphothesis

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Biology

Guest

What process happens naturally to produce new viruses

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Biology

Kasen Cox

How are radioactive isotopes used to determine the absolute age of igneous rock name to radiometric methods that are used

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Biology

Ladybug

A woman in her first trimester of pregnancy has noted an increase in a thick, whitish vaginal discharge even though she showers daily. the woman shares this information with the clinic nurse who provides some client education on the topic of leukorrhea. which interventions should be addressed in this discussion? select all that apply.

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Biology

Josh West

How traumatic is this data collection for the animals that are caught and brought on the research boat

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Biology

Spencer Owens

What happens during the process of translation?

a. the cell uses information from messenger rna to produce proteins.

b. copies of dna molecules are made.

c. transfer rna is made from messenger rna.

d. messenger rna is made from dna

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Biology

Underwood

Gas exchange involves the transport of two respiratory gases, oxygen and carbon dioxide. review how each gas is transported between the atmosphere and the cells of your body by completing this exercise.

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Biology

Cody Blankenship

Which of the following is a nonvascular plant

A. Wheat

B. Dandelion

C. Moss

D. Oak tree

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