Which of the following are environmental problems faced by today's world?

Pollution

Loss of habitat

Contamination of the food chain

All of the above

Purple loosestrife, Lythrum salicaria, is a beautiful, long-stemmed wetlands species brought to the United States from Europe as an ornamental plant.

What is one defining characteristic of a prokaryotic cell

Which of these natural resources is used for making rubber? A. sulfur B. copper C. titanium D. aluminum

The first stage of viral invasion when the virus encounters a susceptible cell and reacts with receptor sites on the host cell membrane

Only 0.001% of water on Earth is present as soil moisture. In the water cycle, which of the following can happen to this water next? A. Absorption by plants B. Condensation into streams C. Decomposition by bacteria D. Transpiration to the atmosphere

In garden peas, the yellow seed trait is dominant over green seeds. Also, the round seed trait is dominant over the wrinkled-seed trait. These genes are on separate chromosomes.

How does a pond form? A. A mudflow blocks a river. B. Water collects in a low-lying area. C. Humans use a dam to create a reservoir. D. A depression made by an ice sheet fills with water.

What are organisms that have been genetically engineered A. genetic adapted organisms B. genetic modified organisms C. genetic customized organism D. genetic tailored organisms

Why is there no single scientific method

Discuss whether or not the steps of the scientific method must be carried out in a specific order and whether or not every scientific endeavor must include all seven steps