The answer is (a.) Archaebacteria
Archaebacteria or Archaea are prokaryotes. They have no cell nucleus. They don't even have membrane-bound organelles in the cells. These bacteria can utilize methane as their source of energy but oxygen is not vital for their survival.
Answer:B) homologous chromosomes trade pieces of dna
Explanation:
Crossing over occurs between two homologous chromosome of sisters chromatid. Crossing over leads to exchange of genetic material between the two sister chromatids leading to recombination.
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
D
Because in the nervous system messages travel faster
Answer:
The organism's parents have to either be heterogeneous dominant or homogeneous.
Explanation:
When the traits get passed down they either have to have 2 dominant traits or a mix.
