Q: Females are not influenced by the male sex hormone testosterone during embryonic development because they lack what? Choices: - x chromosome - m chromosome - z chromosome - y chromosome A:
y chromosome

(Question)
Q: Dissolved fertilizer can ultimately lead to the creation of what in lakes or coastal oceans, which means a place where nothing can live? Choices: - extinction zone - deceased zone - hydrothermal vent - dead zone A:
(Answer)
dead zone

Ques: Q: Interactions between plants and other organisms result in cycling of chemical nutrients within what? Choices: - habitat - air - water - ecosystem A:
Ans: ecosystem

(Q).
Q: Exposure to what can increase the amount of pigment in the skin and make it appear darker? Choices: - gamma rays - sunlight - nuclear radiation - ultraviolet radiation A:
(A).
ultraviolet radiation

Ques:Q: What is the innermost layer of the sun called? Choices: - Convection Zone - Chromosphere - Photosphere - the core A:

Ans:the core

Ques: Q: Alpha emission is a type of what? Choices: - radiation - heat - light - radioactivity A:
Ans:
radioactivity