Answer:
Left atrium
Explanation:
The four pulmonary veins return oxygenated blood to the left atrium.
The answer is competition
Answer:
A researcher would chose percentage cover over stem count because percentage cover is a less time consuming process and easy to calculate in case of species having number of clones.
Advantages of stem count:
- It gives exact number of individual present in the population.
Advantages of percentage area count:
- It gives the total surface area covered by the species and is less hectic.
Answer:
Phobia is a result of associative learning that suggests human and other animals to learn fear in certain threatening objects or situations.
Explanation:
Phobia is a psychological condition that defines any kind of fear which will appear from certain type of objects and it scares intensely.
Several learning experiences creates fear when the particular person is expose to that condition.
These include some associative learning that is related with behavior.
This type of learning is usually based on stimuli which is generated through positive or negative consequences.
This type of learning which create phobia contain classical conditioning, Operant Conditioning, Cognitive social conditioning etc.
