Ans.
Steroids are defined as active organic bio-molecules, having four rings with a specific molecular configuration. Steroids play role in two major functions: as hormones or signaling molecules and as structural components of plasma membrane.
Examples of steroid hormones are estrogen, progesterone, and cortisol. Thus, the correct answer is 'option b). they serve as chemical messengers.'
IT SEEMS THAT YOUR QUESTION IS INCOMPLETE...... PLZ ELABORATE YOUR QUESTION
Plasmodium, a genus of parasitic protozoans of the sporozoan subclass Coccidia that are the causative organisms of malaria. Plasmodium<span>, which infects red blood cells in mammals (including humans), birds, and reptiles, occurs worldwide, especially in tropical and temperate zones.
I hope my answer has come to your help. God bless and have a nice day ahead!
</span>
Answer:
with traits best suited to their current environment
Explanation:
Natural selection proposes that nature selects those organisms that are well adapted to the prevailing environmental conditions to survive and reach reproductive maturity with the favourable characteristics being passed on to the offspring. Those organisms that are poorly adapted die leaving no offspring and their traits are eventually eliminated.
Answer:
It has hollow bones and jaws
Explanation:
After each branch, the species contains the characteristic. So species A has neither, species B has hollow bones, and species C has hollow bones and jaws.
