Answer: B) are excited by light that falls in the center of their receptive field.
Explanation:
There are two types of bipolar cells present in the retina which are differentiated on the way the centres of their receptive fields respond to light. The names of bipolar cells are ON-centre and OFF-centre.
If a light fall at the centre of the receptive field of a bipolar cell, it will experience an exciting effect on that cell, resulting in it being depolarized, it is an ON-center cell.
Hence, the correct option is B.
Independent variable: Temperature
Levels: Room temperature
Freezing point 0C
Boiling point 100C
Dependent variable: breaking point of rubber bands measured in certain amount of temperature
Answer: For the scientist to have alternative hypothesis considered, it is imperative he takes certain steps, this steps will ascertain the scientific claims already made about the evolution of species.
Therefore,the scientist will simply test the alternative hypotheses inorder to know that they are incorrect.
This testing of hypotheses to ascertain their incorrectness is very useful in the study of fossils.
Answer:
Cactus (Cacti) Joshua Tree (Trees), Desert Lily (Flowers)
Explanation:
The producers I have mentioned are all plants and produce either food or oxygen.
Answer: D. Exponential
Explanation:
The exponential growth occurs when the resources are unlimited to the population of the species. The population grows rapidly at a constant rate. Thus the population size increases over concerned period of time. When the resources become limited the growth collapses this is called as logistic growth.
The exponential growth can be shown by the J-shaped curve.
