Answer:
I don't know like what does it basically mean??
During mitosis the four centrioles appear visibly and move to the ends of the nucleus one pair at each end<span> then they produce a series of threads that attach to the chromosomes During cell division the threads split the chromosomes and drew them towards the centrioles</span>
Answer:
Smaller molecules diffuse easily as compared to the larger molecules. In other words, smaller is the size of molecule, easier and faster is its diffusion across a semipermeable membrane.
Diffusion is a process by which molecules move ( via semipermeable membrane) from an area where its concentration is higher to an area where its concentration is lower.
Size of molecules can impact the process of diffusion as smaller is the size, faster is the rate of diffusion.
Explanation:
Answer: b. primary consumers
Food chain is a linear sequence of transfer of food and energy when one organism is consumed by the other organism. The food chain exhibit different trophic levels based upon the type of organism and type of food it obtains. In the producer level there are plants which produces their own food. These plants are consumed by the herbivores called as primary consumers. These herbivores are consumed by higher organisms for example, rat is consumed by snake. The secondary consumers are carnivores. These secondary consumers are consumed by other higher consumers such as tertiary consumers.
The rabbit is an herbivorous animal which feeds upon grass, and vegetables. Therefore, it belongs to the primary consumer level of the food chain.
