A is not right. DNA has thymine
B RNA is single stranded
C is right. DNA has Adenine, thymine, guanine, cytosine. RNA has Adenine, Uracil, Guanine, and Cytosine.
D, DNA has Deoxyribose, not Ribose
The correct answer is C
The correct answer is: If generation 3 had flock distributions similar to those shown in the graph below.
After the change in food, the beak phenotype changes in order to adapt. So, if fruit is removed, the phenotype of birds’ beaks should change according to the change in environment. The graph below shows that there is no change, so it wouldn’t support the hypothesis that food changes beak types.
The neuron releases chemical messengers. Otherwise, there would be no 'signal transduction' in the postsynaptic cell. So, your answer is B.
True. Larger ecosystems always have higher biodiversity!
Everything from oceans, rivers, and lakes to plants, fish and wildlife are dependent on a healthy water supply. A water supply degraded by pollution touches everything on Earth through the process of the water cycle. Drought can lead to sinkholes and massive rains on dried out earth can cause mudslides.
