Biology, 28.12.2021 01:50 HappyPom4169
150 j of work was done to lift a crate with force of 20 N how far was the crate lifted?
Answers: 2
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As the human population grows, what happens to our natural-resource requirements? o they increase o they decrease o they do not change. they go in cycles
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Biology, 22.06.2019 09:30
What's wrong with this ecological pyramid? (multiple choice)1. secondary consumers should be at the bottom of the pyramid2. the sun has an arrow leading to decomposers 3. primary consumers should come after the sun4. energy retained should increase from the bottom to the top5. the sun should be at the bottom of the pyramid
Answers: 1
Biology, 22.06.2019 13:10
Once an egg cell is fertilized by sperm, the cell then, as the embryo develops, it receives nourishment and eliminates wastes by transferring substances from its blood to its mother's blood. a. becomes a fetus immediately and exits the womb b. begins to divide and implants itself in the wall of the uterus c. remains in the uterus without dividing for several months d. travels back to the ovaries until the fetus is developed
Answers: 2
Biology, 22.06.2019 13:20
There are only about 250,000 known fossil species. true or false
Answers: 2
150 j of work was done to lift a crate with force of 20 N how far was the crate lifted?...
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