The correct answer is A. Nebula, star of seven stellar masses, a red supergiant, supernova, black hole.
Explanation
Stars have a life cycle that begins with the gravitational collapse of a gaseous nebula. Subsequently, thermonuclear fusion occurs that allows the conversion of hydrogen into helium, this causes the released energy to pass through the star and radiate in a phase called the star of seven stellar masses. After several billion years, the star passes to the "red giant" stage. Here the star contracts and raises its temperature. After this, the stars (which have masses greater than the sun) detach from their layers forming supernovae, and later, these give rise to "black holes". According to the above, the correct answer is A. Nebula, star of seven stellar masses, a red supergiant, supernova, black hole.
I believe the child is demonstrating Animism.
Animism is belief in innumerable spiritual beings concerned with human affairs and capable of helping or harming human interests. It is a belief that all things have a spirit or soul, including animals, plants, rivers, mountains or feared or in some way attended to. Animists believe each animal is a powerful spirit that can help or hurt them and are to be worshipped or feared or attended to.
<span>the molecule that carries the instruction for producing mRNA is DNA</span>
Answer:
The correct answer is: C.
Explanation:
- The given situation is the example of a Reflex Action.
- Reflex action can be defined as an action shown in response to a sudden stimulus.
- The CNS or the Central Nervous System is comprised of the Brain and the Spinal Cord which receives the Sensory impulses from the Receptor organ, integrates or decides on the response which needs to be provided and then sends the Response impulses to the Effector organ.
- The PNS or the Peripheral Nervous System is comprised of the sensory and motor neurons those are responsible for connecting the Sensory organ and the Motor organ to the CNS, respectively.
- In the situation, Sarah's eyes perceives the ball and sends sensory impulses through the optic nerve containing the sensory neurons (PNS) to the spinal cord.
- The spinal cord possess inter-neurons (CNS) that decides over the action to be done in response to the stimulus.
- The Response stimulus is send from the inter-neurons via the motor neurons (PNS) to the eye muscles of Sarah and Sarah performs the action, that is, she blinks.
Answer:
The correct answer is insight learning.
Explanation:
A kind of problem-solving or learning, which takes place instantaneously by comprehending the various aspects of an issue in spite of going through trial and error procedure is termed as insight learning. The given case is a clear illustration of insight learning. This form of learning takes place if one finds a novel way to solve an issue without the help of any other elements.
The individual in the given case used the help of a cut potato to collect the broken pieces of a lamp, which is an illustration of insight learning. The person has used his instinct and has not used any outside source for doing what he had done.
