Q: What is a copy of an image formed by reflection or refraction? Choices: - an example - a photographic image - a mirror image - an image A:
an image

(Question)
Q: Metalloids, metals, and nonmetals are all classes of what? Choices: - compounds - protons - matter - elements A:
(Answer)
elements

Ques: Q: Is the digestive tract of many sharks longer or shorter than many other vertebrates? Choices: - heavier - longer - narrower - shorter A:
Ans: shorter

(Q).
Q: What are the nonliving parts of ecosystems like soil and air called? Choices: - exemplified factors - irrelevant factors - inorganic factors - abiotic factors A:
(A).
abiotic factors

Ques:Q: What part of earth do many animals use for navigation? Choices: - oceans - atmosphere - molten core - magnetic field A:

Ans:magnetic field

Q: What process joins two haploid gametes into a diploid zygote? Choices: - embryo - fusion - migration - fertilization A:
fertilization