Which is the definition of an embryo?
a) prenatal stage of a human up to 8 weeks of developme...
Which is the definition of an embryo?
a) prenatal stage of a human up to 8 weeks of development after fertilization.
b) prenatal stage of a human beyond 8 weeks of development after fertilization.
c) prenatal stage of a human up to 9 months of development after fertilization.
Answers: 1
Biology, 22.06.2019 08:00, kseniyayakimov
Explain why biological control methods are generally environmentally superior to chemical pest control methods.
Answers: 1
Biology, 22.06.2019 14:30, rallen1158
The human body needs energy in order to carry out life processes such as breathing. where does the body get this energy? a. from eating food b. from learning about new things c. from lying in the sun d. from sleeping
Answers: 1
Biology, 22.06.2019 19:00, katherineweightman
1. in what ways have non-native species been beneficial? 2. what are some of the hypotheses for the collapse of honeybee colonies? 3. distinguish between regional and functional extinction. 4. why is it difficult to measure background extinction rates? 5. what three factors are most important in causing extinction rates to climb?
Answers: 2
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