Unlike arteries, veins contain valves that ensure blood flows in only one direction. (Arteries don't require valves because pressure from the heart is so strong that blood is only able to flow in one direction.) Valves also help blood travel back to the heart against the force of gravity.
The reason which have caused Antarctica’s climate to change from a more temperate climate to its current climate is being revealed by the first option. It is a well known fact that movement of tectonic is the most powerful thing that influences on the climate. So, the right answer is <span>a. movement of tectonic plates</span>
Answer;
Inflammatory
The physiologic process that furthers a burn injury is inflammatory process.
Explanation;
Initial inflammatory response to a burn injury results from activation of the signalling pathways in immune cells by intracellular molecules that are released from the damaged cells.
I think the answer is A because direct sunlight causes dyes in clothes to fade quietly.
Thorndike's law of effect is described below.
Explanation:
- Operant Conditioning. A form of associative learning in which the consequences of a behavior change the probability of the behavior's occurance. According to Thorndike's Law of Effect. Behaviors followed by bad results are less likely to occur and behaviors followed by good results are more likely to occur again.
- The law of effect is a psychology principle advanced by Edward Thorndike in 1898 on the matter of behavioral conditioning (not then formulated as such) which states that "responses that produce a satisfying effect in a particular situation become more likely to occur again in that situation, and responses that produce
- Thorndike's Law of Effect states that a response followed by a pleasant consequence is more likely to be repeated, whereas a response followed by an unpleasant consequence is more likely to be diminished. ... This special stimulus has the effect of increasing the behavior occurring just before the reinforcer.
- Law of effect. Law of Effect. The law of effect states that if a response in the presence of a stimulus is followed by a satisfying event, the association between the stimulus and the response is strengthened.
