During a flood, many individuals in a population of gophers drowned. Which effect of an environmental change does this best illustrate?

death

extinction

adaptation

speciation

Suppose that you are a zoologist studying birds on a group of islands. you have just discovered four species of birds that have never before been seen. each species is on a separate island.

During a "leap year" we add an extra day to our calendar because: A. The Earth takes 24 hours to rotate B. The moon takes 27.3 days to orbit C. Earth takes 365.5 days to revolve D. The moon takes 29.5 days to orbit

2. Explain the purpose of the phospholipid bilayer.

Which best describes the role of a secondary consumer in a food web? Carnivore that feeds on producers Herbivore that feeds on producers Herbivore that feeds on primary consumers Carnivore that feeds on primary consumers

Inherited defects in nucleotide excision repair are a known cause of what diseasel B) diabetes C) AIDS D) albinism E) heart disease

Which change in a sample of pond water could indicate that heterotrophic microbes were active?

Selena made a chart to group adaptations in birds based on their main functions. Which functions should Selena use as headings to complete the chart?

You need to prepare a heparin IV bag of 25,000 units in D5W 500mL. Your pharmacy usually uses 2.5mL of 10,000iu/mL to make these bags, but the only available strength of heparin in your pharmacy is 10,000iu/10mL.

What natural element is one of the best preservers of prehistoric time

A client is diagnosed with a spontaneous pneumothorax. which physiologic effect of a spontaneous pneumothorax should the nurse include in a teaching plan for the client?