Biology, 30.11.2021 08:30, silvernekoo
A student cut three potato chips and recorded their masses. He then put one in water, one in a concentrated sugar solution, and one in a dilute sugar solution. After a day he recorded the masses again. His results are
tube, Starting mass (g), End mass (g)
A, Starting mass - 1.20, ending mass - 1.45
B, Starting mass - 1.40, Ending mass - 1.21
C, Starting mass - 1.32, Ending mass - 1.32
Which tube (A, B or C) contained:
(i) water
(ii) dilute sugar solution
(iii) concentrated sugar solution
Answers: 3
Biology, 21.06.2019 20:30, phil820
Chapter 11.1 & 11.2 notes section 11.1 1. every living thing has a set of ? inherited from its parents. 2. after becoming a ? , mendel spent several years studying ? and mathematics at the university of vienna. 3. during sexual reproduction, male and female reproductive cells join, a process known as ? . 4. pea flowers are normally ? , which means that sperm cells in pollen fertilize the egg cells in the ? flowers. 5. when mendel crossed plants with ? characters for the same trait, the resulting offspring had only one of the characters. 6. a ? is a specific characteristic, such as seed color or plant height, that varies from one individual to another. 7. filius and filia are the latin words for ? and ? . 8. the offspring of crosses between parents with different traits are called ? . 9.to mendel's surprise, all of the offspring had the character of only ? of the parents. 10. mendel's first conclusion was that biological inheritance is determined by ? that are ? from one generation to the next. 11. scientist calls the chemical factors that determine traits ? . 12. mendel's second conclusion is the ? . 13. the principle of dominance states that some alleles are ? and others are ? . 14. when mendel allowed the f1 plants to reproduce by self-pollination the traits controlled by ? alleles reappeared in about ? of the f2 plants in each cross.
Answers: 1
Biology, 22.06.2019 13:00, lays20001
How do you think earths interior affects what is happening on the surface? 2. how do fossils support the continental drift hypothesis? 3. how does sea- floor spreading support the hypothesis of continental drift? 4.what do scientists observe when they studied the magnetic fields of rocks on the sides of mid-ocean ridges? 5. what is a tectonic plate ? 6. explain mantle convection 7.how can movements of the continents affect earths climate? 8. what occurs during drifting?
Answers: 3
A student cut three potato chips and recorded their masses. He then put one in water, one in a conce...