Systems (the interdependency of life and its environment): Explain the concept of a food web and what happens if one species disappears; explain what factors contribute to changes in the size of populations; explain what biodiversity...
What happens to the other populations when the sea stars are removed? What are the characteristics of an alpine tundra? How did halving the rabbit population affect the grass, snakes, and hawks at first? What would happen if a homeostatic failed? List two abnormalities noticed in th...
Pandas are already a rare animal and it would be so sad if they became extinct (灭绝) forever.The other animal we should try to protect more is the Chinese alligator (扬子鳄). These creatures live in some parts of eastern China. These beautiful animals live in freshwater rivers and lakes ...
to you. Your sadness at losing the bid was so apparent that it broke my heart. Though you don't know me, please accept this quilt as my gift. I don't expect repayment from you. I only ask that you do a similar favor in the futrue for a stranger who happens to cross your path....
Closely related animals tend to share the same dietary category—plant-eating, meat-eating, or both. This finding implies that switching between dietary lifestyles is not something that happens easily and often over the course of evolution.
Although based on little concrete data, my analysis of known Krayt and related specimens suggests that they change continuously during ontogeny, although leg number may shift more suddenly (I predict this happens during their first metamorphosis at sexual maturity). Strong allometric scaling of neck ...
. We’re dissecting a 46kg male Snow Leopard (Panthera uncia) as the first “data point” (actually several hundred data points, but anyway, first individual) in our study of how limb and back muscles change with size in felids. No April Fools’ pranks here; real science-as-it-happens...
The dogs were thus selecting between known actions on the basis of the human demonstrator’s behavior, and it is not necessarily the case that they recognized the similarity between the demonstrator’s behavior and their own. The important question is what happens when wholly novel responses are ...
The dogs were thus selecting between known actions on the basis of the human demonstrator’s behavior, and it is not necessarily the case that they recognized the similarity between the demonstrator’s behavior and their own. The important question is what happens when wholly novel responses are ...
If the pressure in a certain area become too much and the rock masses break, an earthquake happens. But exactly when the rock masses reach the breaking point is a mystery(谜). China is on the Eurasia(欧亚) plate, where earthquakes happen very often due to the earth's plates knocking ...