Raja raje blah dan sana poop
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.'
Answer:
circulate blood around the body via the heart, arteries an veins, etc
Explanation:
The blood travel to your liver before transporting nutrients to other parts of your body in order to filter out substances that are not needed for the body. The liver <span>regulates the composition of blood, including the amounts of sugar (glucose), protein, and fat that enter the bloodstream. It removes bilirubin, ammonia, and other toxins from the blood. </span>
<span>a. organisms that live in different ecosystems
- if they live in different ecosystems, they won't compete, wrong answer!
b. organisms that use the same resource
-this is the best answer! they would compete over this resource!
c. organisms that live in the same area
-this makes competition possible, but more aspect are needed, for example they need to want the same resource (if you only eat apples and y our friend only eats ants, you won't compete)
d. organisms that are classified in the same phylum
-no, they can for example live in different ecosystems!
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