Serious disease syndromes are associated with trisomy of chromosome 21 (down syndrome), 18 (edwards syndrome) and 13 (patau syndrome).what is the result of trisomy of the other chromosomes? a. no disease symptomsb. minor disease symptomsc. disease symptoms with varying severity based on genetic backgroundd. lethal early in development

After getting the slide and microscope ready, stella is eager to see the microscopic pond water specimen! she crouches around her microscope and aligns her eye with the microscope’s eyepiece. but she's only able to see a bright white light. at this point, no specimens or cells are visible on stella's pond water slide. after taking a moment to collect her thoughts, stella realizes she can't see any lifeforms because .

Environmental impacts on evolution : mastery test

When you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?