Mercury is a pollutant classified as___?

A. a radioactive waste

B. a heavy metal

C. an organic material

D. a pathogen

Plants constitute an abundant food source. Sometimes we eat the endosperm. Sometimes we eat the ovary (we call it fruit). Sometimes we eat the leaves. Sometimes we eat the roots. Which of these is produced by double fertilization?

The Galapagos finch species are an exmple of

What human activities prevent the artificial ecosystem of the city park from changing?

Both parents are pure dominant for brown eyes. What is the probability of them having a child with blue eyes?

The complement system is a ___ barrier of the immune system

1. How do cells relate to your genes and how can cells differentiate into the specific body parts?

Imagine that you have a sore throat. The doctor says it is a bacterial infection. Why would you conclude that it is not caused by Archaebacteria?

What type of projection would be best for a world map of population density?

What forms when water is drawn away from the area between high tides?

If a population of deer exceeds its carrying capacity, it is likely that the population will crash. population will become extinct. carrying capacity will increase. birth rate will increase.