Which of the following things contain organic molecules?

lettuce

ketchup

butter

All of the choices are correct.

Arthropod body segments are sometimes distinct, sometimes indistinct and sometimes fused as groups to form body regions. Which groups of arthropods appear the most distinctly segmented?

How many elements did Mendeleev's original periodic table have? 15 63 43 103

What is salinity? what units are used to express the salinity in water?

A scientist hypothesizes that all trees in warm areas produce flowers before the rainy season begins. Which is a limitation to testing this hypothesis? A) Rainy season varies around the world. B) Geographical location of warm areas is very large.

Why is Mutualism more common in tropical ecosystems then in other ecosystems?

What grouping has the least complex body plan

What is the outcome when a cell undergoes meiosis? A) Two diploid cells B) Two haploid cells C) Four diploid cells Eliminate D) Four haploid cells

You are caring for a client with chronic respiratory failure. What are the signs and symptoms of chronic respiratory failure?

Can gel electrophoresis sort other types of molecules other than DNA

Which of these is an example of an extinction that has been witnessed by humans?