Research study show that sea urchins displayed similarity with humans like having an immune system and genetic material (DNA). Both belong to the deuterostomes. These animals are similar based on their early stage of development specifically during the embryos form.
Your answer is D. Anther. The stamen is a part of the flower that is “in charge” of the production of pollen, but the anther is the part in the stamen that actually produces the pollen.
High-density lipoproteins (HDL) refer to macromolecular complexes made up of lipids and that have the function of transporting dietary lipids to the liver.
<h3>What are lipoproteins?</h3>
They are macromolecules whose function is to package insoluble lipids in the aqueous medium of plasma and transport them from the intestine and liver to peripheral tissues and, from these, return cholesterol to the liver for elimination from the body.
<h3>Characteristics of High Density Lipoproteins (HDL)</h3>
- They are synthesized and secreted by the liver and to a lesser extent by the intestine.
- They transport cholesterol from peripheral tissues to the liver, this is known as “Reverse Cholesterol Transport”.
Therefore, we can conclude that lipoproteins are macromolecules whose function is to transport lipid molecules from one organ to another in the aqueous medium of plasma.
Learn more about lipoproteins here: brainly.com/question/16170788
<span>The repolarization of cardiac muscle is due to closure of calcium (Ca) channels and potassium (K) exiting the cell when additional voltage gated K channels open.
Due to these changes within the heart, repolarization has to happen. This process refers to returning the cardiac muscle to its resting state, and the opposite process is depolarization.
</span>
The answer to this question would be: 3. distract the infant with a more appropriate toy.<span>
An infant wouldn't understand the instruction given by the nurse. It is more appropriate to give the infant another toy to distract him/her from the bracelet. The </span>identification bracelet is important to make sure that a procedure is done for the right patient and shouldn't be removed before the admission is over.