2.You have tall-stemmed plants (T) and dwarf-stemmed plants (t) If you cross two plants, a heterozygous tall-stemmed plant with a dwarf-stemmed plant. The phenotypes found in the plants of the offspring are -dwarf stem and medium stem.
-tall stem.
-tall stem and dwarf stem.
-medium stem.

9. the history of life on earth is recorded in

Ascientist is investigating the effects of salinity on fish development. he places fertilized fish eggs in an aquarium that contains low salinity and observes their development. what factor would improve experimental design the most? place the fish eggs in the open ocean because that is the natural habitat include another aquarium that has normal salinity to compare to the low salinity aquarium include an aquarium that replaces salt with sugar to confirm that the effects are specific to salt grow algae with the fish eggs in order to provide adequate nutrients to the developing embryos

Ineed a little . why do you think there is a basic difference between the kinds of fertilization most common in aquatic and terrestrial animals?