You are presented with the question "Which chemical controls sexual development and reproduction in females?" and the following answer choices: - acetic acid - Hemoglobin - Fructose - barnacles - animals - Estrogen - Pesticides - Baby spray Now knowing that sex hormones are chemical messengers that control sexual development and reproduction and estrogens are female sex hormones, choose the best answer.
Estrogen
------
You are presented with the question "what has a negative impact on the environment?" and the following answer choices: - forest is destroyed - habitats - animals - oxygen - deforestation - movements in the earth's crust - harmful substances - hydrocarbon emissions Now knowing that pollutants have a negative impact on the environment and hydrocarbon emissions are one of the pollutants that create ozone pollution, choose the best answer.
hydrocarbon emissions
------
You are presented with the question "Tsunamis are often cause by what in the earth's crust?" and the following answer choices: - waves - faulting. - flooding - pressure - friction - Movement - erosion - heat Now knowing that faulting of rock in Earth 's crust causes earthquakes and earthquakes can cause a tsunami, choose the best answer.
faulting.
------
You are presented with the question "What do cells make up of organisms?" and the following answer choices: - structure only - function only - structure and function - members of their own species - Something that is self-aware - share properties - desires and needs - Most plants Now knowing that cells are the basic units of the structure and function of living things and an organism is a living thing or something that was once alive, choose the best answer.
structure and function
------