Fact 1: Echinoderms use pheromones to communicate with each other.  Fact 2: All echinoderms are deuterostomes .  Given the two facts above, answer the question "What use pheromones to communicate with each other?" with the following options:  - passenger pigeons  - honeybees  - deuterostomes  - Most plants  - insects  - animals  - huddle together  - orchids
deuterostomes
(Question)
Fact 1: Water vapor condensing in clouds causes rain.  Fact 2: When it rains, the rain moistens the soil.  Given the two facts above, answer the question "what does water vapor condensing in the clouds cause?" with the following options:  - energy  - Pollution  - Evaporation  - moist soil  - Energy.  - flooding  - kinetic energy  - Heat energy
(Answer)
moist soil
Ques: Fact 1: Viruses cause many human diseases.  Fact 2: Infectious disease is the leading cause of human death worldwide.  Given the two facts above, answer the question "what can cause death?" with the following options:  - weathering  - chemicals  - Cars  - respiration  - viruses  - flooding  - digestion  - Pesticides
Ans: viruses
(Q).
Fact 1: Hydropower requires damming a river.  Fact 2: Streams and rivers are crossed on rocks, beaver dams, on fallen trees or by wading.  Given the two facts above, answer the question "Hydropower requires beavers damming what?" with the following options:  - lakes with large rocks  - a hydraulic system  - organisms and their habitat  - streams with two branches  - water with old boards  - scarce resources  - fissures of hot, acidic water  - streams with fallen trees
(A).
streams with fallen trees
Ques:Fact 1: An animal requires nutrients to grow and heal.  Fact 2: Foods contain nutrients that provide people with necessary energy and essential nutrients.  Given the two facts above, answer the question "What does an animal require to grow and heal?" with the following options:  - pH  - food  - fats  - bamboo  - death  - sodium  - lies  - jealousy

Ans:food
Ques:Fact 1: If an object in a fluid is more dense than that fluid then that object will sink in that fluid because of gravity.  Fact 2: Weight is the force of gravity on an object.  Given the two facts above, answer the question "Why will an object sink in fluid?" with the following options:  - The object drinks the fluid  - The fluid is heavier  - It weighs more  - permineralization  - erosion  - The object absorbs its energy  - a hydraulic system  - to move people

Ans:
It weighs more