1. Pathogens enter the body through a cut in the skin
2. Cells recognize the foreign invaders
3. Histamine is released
4. White blood cells travel to the invaded area
Hope it helps.
Answer:
B. have to find a partner
Explanation:
Reproduction for dolphins and badgers and people is more complicated because, it has to find a partner.
Answer is A all living things need to go through the photosynthesis cycle and need oxygen to sustain life
Answer:
B.
Explanation:
An unsaturated fatty acid has one or more C=C double bond in the fatty acid chain. Only one answer choice has a C=C double bond.
So, the answer is B.
Hope that helps.
They both are formed through the attraction of atoms possessing opposite polarities. Hydrogen bonds is a relatively weak bond between two oppositely charged sides of two or more molecules and in an ionic bond, an atom gives away one or more electrons to another atom, which means the ionic bond is stronger.
