Answer:
To explain this cell division divides into 2 types as mitosis & miosis
mostly mitosis occurs in plants & miosis occurs in animals
Mitosis | Miosis
•One division •Two divisions
•Occurs in both •Only in diploid cells
diploid & haploid •Daughter cells are differ
•Daughter cells are from mother cell
similar to mother cell •4 daughter cells at the
•2 daughter cells of the division
at the end of division
Answer;
Statocysts
Explanation;
-The small organs of equilibrium in scyphozoan jellyfishes are called statocysts, and these are borne in more complex sense organs called rhopalium.
The statocyst is a balance sensory receptor present in some aquatic invertebrates, including molluscs, bivalves, cnidarians,ctenophorans, echinoderms, cephalopods and crustaceans. These structures aid in orientation and balance during swimming in medusae and are located around the margin of the bell in Craspedacusta.
a population can become more adapted to its environment through natural selection. natural selection is a process by which organisms that are well adapted to their environment survives and produce more offspring. The least adapted organism die and are unable to give rise to new generation with characteristics that are not well adapted to the environment. the process is also referred to as survival for the fittest. this is the main process that brings about evolution. the theory of natural selection was fully expounded by scientist Charles Darwin.
The answer of your question is
D. The conscious mind of the cortex can override body signals.
Answer:
The correct answer will be option-A.
Explanation:
The lac repressor is a protein produced by the regulator gene present in the lac operon called lacI gene. The repressor proteins bind to a DNA sequence called the operator and block the site for binding of RNA polymerase, thus shuts off the transcription when lactose is absent.
Lac operon is a homotetramer made of two dimers with two alpha-helix bundles which bind to different regions of the operator. The binding of the allolactose to protein causes conformation change in the protein due to which separates the binding helix of the DNA and inhibit the association of the protein to DNA.
Thus, option-A is the correct answer.