Blood pressure is highest in arteries and lowest in veins, and veins are vessels that bring blood to the heart. Given these facts, vessels that bring blood to the hard have lower blood pressure than among the following options: - the skin - arteries - archery - heat or cold - exercise - artefact - artesan - lungs
arteries

Phase changes do not change mass, and mass Amount of matter an object contains. Given these facts, what do phase changes not change among the following options: - Time and energy - properties of object - Heat energy - color of object - population movement - shape of object - amount of matter - Molecular kinetic energy
amount of matter

Q: The Earth revolving around the Sun causes the seasons to change on its axis, and weather changes from season to season. Given these facts, what causes weather to change among the following options: - wind and erosion - Earth revolving around the sun - degrees Celsius - exposure to cold - Colder temperatures on Mars - Forecasting sunny weather - pressure differences. - Performing a rain dance
A: Earth revolving around the sun

Question: Cells have multiple repair mechanisms to fix mutations in DNA, and dNA damage is called mutation. Given these facts, what do cells have multiple repair mechanisms to repair among the following options: - Veins and arteries. - damage to DNA - a cuticle - animals - mammals - peachleaf willow - gastropod shells - an organism's body
Answer: damage to DNA

*Question*
Alaser is used for producing light, and light reveals what lies hidden in darkness. Given these facts, what can be used to reveal what lies hidden in darkness among the following options: - A laser - Night - photons - energy - Electrical - Blackness - heat - Hidden health issues
**Answer**
A laser

(Q).
Antigens are molecules that the immune system recognizes as foreign to the body, and another such HPV antigen is the E6 antigen. Given these facts, what is recognized as foreign to the body by the immune system among the following options: - h2o - HIV - SNPs - blood - organs - p53 - DDT - HPV
(A).
HPV