Ques:Q: The numbers and types of species in most ecosystems change to some degree through time and this is called? Choices: - physiological succession - continuous succession - environmental succession - ecological succession A:

Ans:ecological succession
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Ques:Q: What is said to occur when both traits appear in a heterozygous offspring? Choices: - identical twins - pollenation - xenophobia - codominance A:

Ans:codominance
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Ques:Q: Where do most ecosystems get their energy from? Choices: - earth - heat - water - sun A:

Ans:sun
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Ques:Q: A machine is any device that makes work easier by doing what? Choices: - moving things - changing molecules - removing barriers - changing a force A:

Ans:
changing a force
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