1. sex-linked disorders are carried on the y chromosome, and they can only be expressed in males. true or false? 2. how much of the earth's atmosphere do scientist believe was made of oxygen 2.3 billion years ago? a.) 70% b.) 22% c.) 1% d.) 10%

Which of the following lines of evidence would best support your assertion that a particular plant is an angiosperm? a) it produces seeds. b) it retains its fertilized egg within its archaegonium. c) it lacks gametangia. d) it undergoes alternation of generations.

Lymphatic vessels remove excess fluid from tissues. often after mammexront( the surgical procedure to remove of all or part of a breast) the lymphatic vessels draining the arm are damaged. explain a consequence of this damage. what can be done to reduce the symptoms?

Set comes up with for examples of sound waves ocean wave light wave and hand wave which of tonys examples is not an actual scientific wave