How does an organism obtain oxygen for aerobic respiration

Are endosperm formed in seed or seedless plants?

Which process causes clouds to from on particles of dust

According to the PLC theory, developing countries have their best production advantage in which stage of the product life cycle?

Carbon is found in the atmosphere in the form of

The process of scientific inquiry can be best used to answer which question? Why do diseases exist? What should I do? Why do bad things happen? Why is the sky blue?

Wich is the central element of the process of artificial selection

All organisms are made of more than one cell

Read the excerpt. Which type of keyword is "Deforestation"? Deforestation Rain forests clean the air by producing oxygen. They are also known to affect the water cycle and weather.

Bacterial cultures are sometimes exposed to ultraviolet (UV) light in order to generate organisms with new genetic traits. Why do microbiologists choose to use UV light for this purpose?

Knowing that ozone pollution affects most people who engage in vigorous outdoor activities, and that indoor pollution can be worse than outdoor pollution, discuss what strategies a young person might take to limit lung function damage most