*Question*
Fertilization occurs when a sperm and an egg fuse, and fertilization is complete when the sperm and egg nuclei fuse. Given these facts, fertilization occurs when a sperm and nuclei what among the following options: - fuse - leave - CO 2 - fusion - emerge - grow - H 2 O - procreate
**Answer**
fuse

*Question*
Looking at bright objects has a negative impact on the eyes, and outside, the sun is bright. Given these facts, what can have a negative impact on your eyes among the following options: - Going to the eye doctor - A light amount of reading - cigarettes - smoking pipes - Eating a lot of carrots - Pollution - Pesticides - Looking at the sun
**Answer**
Looking at the sun

*Question*
Many consumers feed at more than one trophic level, and carnivores are consumers which eat animals or other consumers. Given these facts, many what feed at more than one trophic level among the following options: - roots - humans - carnivores - cacti - animals - people - algae - plants
**Answer**
carnivores

*Question*
Skin is used for protecting the body from harmful substances, and skin is comprised of two layers, the epidermis and dermis. Given these facts, what protects the body from harmful substances among the following options: - h2o - brain - hard outer covering - fur and fat - protective bony armor - salt and pepper - epidermis and dermis - deoxyribonucleic acid
**Answer**
epidermis and dermis