B. Hydrogen bonds make the positive sides of water molecules stick to each other
Answer:
Simple squamous epithelium,stratified squamous epithelium,pseudostratified columnar epithelium
Explanation:
The respiratory system is made up of many different types of tissues and they differ according to their locations in the respiratory system.
1.Simple squamous epithelium: It is found within the alveoles of the lungs. These cells are single layer,flat (squamous) cells. It controls the permeability of blood vessels in the lungs. When you inhale it allows more oxygen to be absorbed in the blood flows.
2.stratified squamous epithelium: It is found at mouth surface primarily tongue and throat . These cells are stratified that is they are many layered because everyday whatever we put in our mouth and throat it protects from wear and tear. It gives physical protection from pathogens as well.
3.pseudostratified columnar epithelium: It is a lining of the nasal cavity trachea and bronchi. This layer is ciliary to trap patheogen on entering into the lungs.
.
Answer:
(A)
Explanation:
can't be flower
can't be color
can't be protective structure
a flower has the ovary which animals have too
<span>Take energy from the sun and make it usable for living things. Producers are organisms like plants that "produce" their own energy from nonliving things in the environment, usually the sun. The first two choices are consumers, and no organism does the last choice.</span>
Answer:
Chromatin
Explanation:
The DNA, which is the genetic material in virtually all living cells is found in a long chain of polynucleotides. This long nature of the DNA will prevent it from fitting into the nucleus of eukaryotic cells. Hence, the cell devises a way to make this work by forming a structure called CHROMATIN.
Chromatin is formed when the long DNA molecule wraps around a set of proteins called HISTONE. Histones bind to the DNA molecule, which could are the core of the proteins to form a NUCLEOSOME structure. Each nucleosome is the basic unit of Chromatins. This nucleosome undergoes further coiling to form the CHROMATIN, which eventually forms the chromosomes the genetic material is transferred as in the nucleus.
