You are presented with the question "what type of antigens does the immune system recognize as foreign to the body?" and the following answer choices: - animals - epidermal - Allergies - negative - dangerous - graptolites - group of atoms - homogenous Now knowing that antigens are molecules that the immune system recognizes as foreign to the body and molecules are a group of atoms, choose the best answer.
group of atoms
(Question)
You are presented with the question "What can enhance a plant's growth?" and the following answer choices: - sunlight - tight soil - Energy. - loose soil - Enzymes - compacted roots - energy - compact soil Now knowing that the looseness of soil has a positive impact on a plant 's roots' growth in that soil and air exchange in the root zone is essential for root growth, choose the best answer.
(Answer)
loose soil
Ques: You are presented with the question "Reducing paper production would directly help stop what international problem?" and the following answer choices: - Greenhouse gases - obesity - global warming - cool summers - deforestation - population movement - antibiotic resistant bacteria - Greenhouse gasses Now knowing that creating paper requires cutting down trees and saving trees helps stop global warming, choose the best answer.
Ans: global warming
(Q).
You are presented with the question "what is a rainbow formed by?" and the following answer choices: - Condensation - gravity - sunlight - energy of moving objects - pot of gold - rain or sun shine - bending of light - h2o Now knowing that arainbow is formed by refraction of light by separating light into all different colors and refraction is the bending of light, choose the best answer.
(A).
bending of light
Ques:You are presented with the question "What has pressure receptors?" and the following answer choices: - the Sun - insects - animals - humans - rocks - air - a fish - people Now knowing that pressure receptors are found mainly in the skin and animals have skin, choose the best answer.

Ans:animals
You are presented with the question "How does a greenhouse protect flowers?" and the following answer choices: - keeps them away from the sun - keeps them warm - keeps them out of soil - an external framework - it needs them - keeps them cold - rays or beams - by indirect light Now knowing that agreenhouse is used to protect plants by keeping them warm and flower size varies by plant, choose the best answer.
keeps them warm