What is the carrying capacity for humans on planet Earth?

A) 1 million

B) 6 billion

C) 100 billion

D) unknown

Zortronian scientists have noticed that Bellvoices in the cities use a different range of frequencies than Bellvoices in the forests do.

The planting of trees is detrimental to soil because it drains the soil of nutrients. True or False.

Most countries have outlawed whaling but some countries have few or no laws protecting whales. Why are conservation pushing for worldwide restrictions on whaling. A. Whale oil is desperate needed as fuel as worldwide B.

During glycosis, glucose in broken down into?

Suppose you had an enzyme that recognized a sequence of six nucleotides. What are the odds that this sequence would appear in a random chain of DNA?

A hormone that increases heart rate, blood pressure, and blood sugar levels in times of emergency is

What is the meaning of the word "thermal" in this sentence? all boys coming on the school camping trip need to bring a pair of long thermal underwear because it is going to be very cold this weekend.

If an animal had 44 chromosomes in its sex cells, how many chromosomes total will they have?

Which system regulates and controls growth, development, metabolism, and reproduction? 1. endocrine system 2. lymphatic system 3. integumentary system 4. skeletal system

In photosynthesis what do the chloroplasts convert the energy of sunlight into?