Phosphorus is:

a) added to the soil through weathering

b) usually very abundant in an ecosystem

c) returned to the soil by rhizobium

d) found free in the atmosphere

if the activation energey required for a chemical reaction were reduced what would happen to the rate of the reaction?

If the investigation was done with 200 mothers how many babies from mothers o age 37 had down syndrome

What does a red pupae turn into

The elevation of the metabolic rate that occurs after ingestion of a meal is

Why is the Big Bang a theory and not a fact? Because no one is able to witness it Because there are no theories that could be possible. Because theories never turn into facts. Because there are no such things as facts.

In the United States, mothers who live in poverty generally have babies with lower birthweight than those who do not live in poverty. The mean birthweight for babies born in the U. S. to mothers living in poverty is approximately 2800 grams.

Hypothesis on whether radiation has the same impact on coastal, forest, and desert areas

In a family is affected by a genetic disorder the son in the family has the same diseasebut the daughters do not have it

The "sphere" that includes all of the water in, on, or around the Earth is the A. biosphere. B. exosphere. C. geosphere. D. cryosphere. E. atmosphere. F. hydrosphere.

What is the arrangement of phospholipids in the plasma membrane