The skin is an example of a non-specific defense.
For example, bacteria or diseases have trouble entering a healthy person's skin because it is formed by closely packed cells with multiple layers and a substance called keratin that protects is.
On the other hand, the immune system is a specific defense mechanism.
When bacteria is able to enter the body in cases of fever for example, the immune system is activate and sends out protector cells such as the white blood cells to combat infection.
Answer:
a
Explanation:
A. Channel and carrier proteins move substances in a certain direction, regardless of their concentration gradients.
I believe two individual new cells.
Answer:
Please see below
Explanation:
The supporting data has been organized in a table and attached as an image herein. As can be clearly seen from the data table, the zones under study are nothing alike. The home area is mostly for residential use and gives the greatest percentage for being used for housing purposes. However, the Mount Pinatubo area is mostly being for vegetation.
Answer;
61
Explanation;
-The value 61 signifies that 61% of the 617 nucleotide positions are the same in both species, this about the comparable rRNA gene sequences in Comamonas testosteroni and Escherichia coli.
-Some cells have a dash rather than a value because those cells would compare one species to itself. Other shaded grey with no value because these cells would duplicate comparisons shown elsewhere in the matrix.
