Biology, 13.10.2019 00:00 yailin9562
If twins are born and one is a boy and one is a girl, are they identical or fraternal siblings?
a. identical
b. neither
c. fraternal
d. both
Answers: 1
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Which of the following is a difference between a food chain and a food web? selected: a. food webs contain both plants and animals. food chains only contain animals.this answer is incorrect. b. food webs show energy transfer. food chains show which animal eats which animal. c. food webs separate organisms by tropic level. food chains do not. d. food webs are a complex patterns of energy flow. food chains only show one line of energy flow.
Answers: 2
Biology, 21.06.2019 15:10
How many variables are altered in a good experiment? a.1 b.0 c.2 d.3
Answers: 2
Biology, 21.06.2019 19:30
Which of the following statements is true? 1. the mantle of the earth is made of solid nickel and iron. 2. the crust of the earth is made of solid nickel and iron. 3. the inner core is made of solid nickel and iron.
Answers: 1
Biology, 21.06.2019 21:30
What is the difference between bacterial infections and viral infections?
Answers: 1
If twins are born and one is a boy and one is a girl, are they identical or fraternal siblings?
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