Across
- 3. a bacterium, virus, or other microorganism that can cause disease
- 5. process that the egg travels down the fallopian tube where it may be met by a sperm and become fertilized
- 9. immunity against a specific antigen or disease; t-cells and b-cells (memory cells)
- 12. generalized responses to pathogen infection - they do not target a specific cell type
- 13. a substance used to stimulate the production of antibodies and provide immunity against one or several diseases
- 14. force exerted by the blood against the vessel wall. Blood pressure is highest in arteries and gradually decreases as it passes through arterioles, capillaries, and veins
Down
- 1. the attachment of the fertilized egg or blastocyst to the wall of the uterus at the start of pregnancy, often delayed in some mammals by several months
- 2. used in the treatment and prevention of bacterial infection
- 4. the fusion of an egg and a sperm to form a zygote
- 6. fertilized egg; union of 2 gametes
- 7. later stage of development of a baby, from the end of the 8th week to the moment of birth
- 8. small infectious agent that replicates only inside the living cells of other organisms
- 10. a toxin or other foreign substance that induces an immune response in the body, especially the production of antibodies
- 11. the first stage of development of a baby from the moment of fertilization until the end of the 8th week of gestation