Answer:
B. it's trying to get sunlight.
(D. is plausible too)
Explanation:
Plants need sunlight for photosynthesis, so they tend to act towards the sunlight (phototropism)
Answer:
False
Explanation:
Approximately 200 out of 200 million sperms ejaculated during intercourse reach the general vicinity of the egg. They sperms must undergo capacitation during which dilute inhibitory factors fluids of the female reproductive tract weaken the membrane of the sperm head so that head of the sperm can be broken easily when it came in contact with the egg.
The first sperm to reach an egg isn’t the one to fertilize it because the egg is surrounded by a gelatinous membrane called the zona pellucida. Outside this layer, a layer of small granulosa cells also present.
Therefore, it requires numerous sperm to clear a path through these barriers before one of them can penetrate the egg and fertilize it.
This ability of the brain is known as neuroplasticity or brain plasticity. It is a term that refers to the brain's ability to change throughout life.
In the 1960s, it was confirmed that the brain can rewire itself either due to learning and experience or due to injury or damage, even during adulthood. This theory came to correct the previous view of a static and unchanged adult human brain. Therefore, there is data supporting the idea that the adult brain has the ability of neurogenesis and can in some cases heal itself.
The diagram shows an age structure for the population of Thailand in the 1960s.From the diagram we can conclude that -The population has a large proportion of youth under the age of 25.The population is in a period of rapid growth.The population has a large proportion of seniors over the age of 65.
Explanation:
The diagram shows an age structure for the population of Thailand in the 1960s. The following conclusions about the population are supported by the age structure
- The population has a large proportion of youth under the age of 25.
- The population is in a period of rapid growth.
- The population has a large proportion of seniors over the age of 65.
From the diagram given we can see that during the year 1960 the population of the individual under the age group of 25 years was more which clearly indicates that the population is under the period of rapid growth .From the image we can also conclude that as the age of an individual increases from 25 to 65 and then 105 years the number of individuals decline(A steep decline in the population is visible as the individual age starts increasing from 65-105 years)
