A haploid cell contains 30 total chromosomes. How many chromosomes are in a diploid cell?
How many different types of chromosomes are there?
How many pairs of homologous chromosomes are in the haploid cell?
How many pairs of homologous chromosomes are in the diploid cell?

Ascientist wants to determine the effect of a new type of gasoline. he fillsone car with normal gasoline and another identical car with the new gasoline.which is the control group? a. the new type of gasolineb. the car with the normal gasolinec. the car with the new gasolinethe amount of gasoline usedd. the amount of gasoline used

Draw a simple labelled diagram if a collenchyma tissue

1. in what ways have non-native species been beneficial? 2. what are some of the hypotheses for the collapse of honeybee colonies? 3. distinguish between regional and functional extinction. 4. why is it difficult to measure background extinction rates? 5. what three factors are most important in causing extinction rates to climb?