The human brain is fully functional by the end of the ____
a. first trimester
b. third month
c. third trimester
d. ninth month
e. seventh month
ANSWER: e
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If an object were collected on Mars by the rover Curiosity, it would be considered a living organism if it ________
A) responded to environmental stimuli B) had metabolic activities and maintained homeostasis C) contained DNA and reproduced D) All of the above are true.
The cell walls of fungi and algae are rigid and provide structural support and shape, and are similar to prokaryotic cell walls in chemical composition.
a. true b. false
The length of time that Darwin's round-the-world voyage took was about ________
Fill in the blank(s) with correct word
Forests, like other ecological systems, are subject to the species succession process. Which of the following would be characteristics of pioneer plant species facilitating the early stages of forest succession? (Check all that apply.)A) Slow-growingB) Pollinated by animalsC) Seedling growth requires direct sunlightD) Seeds germinate in the shadeE) Plants produce great quantity of seeds
What will be an ideal response?