Identify the two main conditions that must exist for an ecosystem to be self sustaining

For seed color, the F2 generation produced both yellow and green seeds because there are two different (blank) for each gene.

Which kind of landslides occurs when a top layer of soil is displaced

Prior to modern DNA analysis, morphology (study of physical characteristics) was used to classify organisms. As a result of DNA analysis, some organisms were found to be misclassified. Why were they misclassified?

Which of the following statements is correct about black holes? Black holes cannot be seen because light cannot escape from them. Black holes will produce new stars. A black hole is the beginning of a star's life cycle.

Which of the following is a major function of the cell membrane? A. To surround and support organelles in eukaryotic cells B. To receive and send messages between cells C. To combine amino acids into long chains to make proteins D.

How many calories would be avaliable to a Cod

If you were exposed to poison ivy which of the treatments below would you apply to the affected area to make this offending chemical most soluble so to be washed away?

You must have only positive thoughts in your heart and you're going to cripple this monster. Stick a piece of garlic in your pocket for good luck.

What is the corresponding complimentary DNA for the sequence CGC ATA GCT?

Why are estuaries particularly vulnerable to the effects of pollution?