<span>Hello,
Silver is a pure substance, So B is your answer!
Have a good day mate !!!
Your Friend --- Young Sinatra</span>
Answer:
In the first step of meiosis I, the chromosomes/genetic material of the cell condenses into a visible form, into a form called heterochromatin. The nucleolus also disappears.
In the second step, a process called synapsis occurs. This is when homologous chromosomes align themselves, gene by gene.
In the third step, crossing over occurs. Segments of corresponding DNA are cut and exchanged between non-sister chromatids of the formed tetrads.
In the fourth step, the nucleus fragments, the nuclear envelope fragments, the two centrosomes (if we're talking about an animal cell) separate from each other as their asters and mitotic spindles (mostly microtubules (kinetochore and non-kinetochore) lengthen. The microtubules extending from the centrosomes can now connect to chromosomes.
Answer:
<u>Option-(D):</u>Alternative scientific theories are suppressed by the science establishment.
Explanation:
<u>Theory of Evolution:</u>
"The theory of evolution states that, there is a process of change which occurs inside the living organism's heritable, physical and behavioral traits over the years or mostly it occurs in a series of generation".
- As, there were many other theories that were presented and research was carried out on them in order to increase the level of education regarding the term "evolution".
- The alternative theories had no such experimental grounds to prove their worth and authenticity leading them to be suppressed by the Darwin theory of evolution.
The box stopped moving because the force stopped pushing . The average speed of the box would be 5 meters per second
The garden plants and snails stay balanced as they are still being eaten. However, if the cat is removed, the birds will overpopulate and then the snail would be eaten and decrease faster which gives garden plants an increase in population due to the decrease in snails. Hope this helps!
