There will be no dwarf pea plants in the first generation, because T is the dominant gene
The correct answer for the question that is being presented above is this one: "<span>Urochordata." </span>Lancelets have all chordate characteristics and segmentation in the adult. Tunicates (Sea Squirts), Subphylum: Urochordata Gill slits are the only chordate feature retained by the adult form.
It is important for a scientific claim to be accurate because a scientific claim is supposed to be able to be trusted and it needs to be credible. To develop a scientific claim you need to first test your theory many times to make sure that the same result happens every time.
Hope this helps
The short answer is: The scientist means that a dose of 20 mg per kilogram is enough to kill one half or fity percent of the animals used in the test. LD stands for leathal doseage. The 50 means 50 percent. Subsequently a dose of 20 mg per killogram has a lethal dose that will kill 50% of the test subjects.
