Approximately how many known neurotransmitters are there

The individuality of an organism is determined by the

The best fossil evidence to suggest that neandertals could produce a language like that of modern humans comes from which bone (s) collected at kebara, israel?

Describe the characteristics of a river that would be a good source of freshwater (2-3 sentences)

Which statements describe asexual reproduction? Check all that apply results in offspring with different DNA than parent results in offspring with the same DNA as parent requires only one parent to produce offspring requires two parents to produce

What kind of sensory adaptation would you hypothesize the cave fish has to allow it to navegate in cave including catching and eating food

Acid precipitation is an agent of what kind of weathering?

When do scientists consider a hypothesis valid? A. when the hypothesis is testable B. when the hypothesis is published in a scientific journal C. when more than one person supports the hypothesis D. when experimentation shows it to be true

In cherry trees, white flowers are dominant over pink flowers. cross a homozygous dominant tree with a purebred recessive tree. what is the phenotypic ratio of the offspring? a. 4 ww b. 4 white selected: c. 4 ww d. 4 pink

What happens to Earth when it is farthest from the sun? A) It moves fastest, B) It stops rotating, C) It moves slowest. D) It stops revolving

Deer ticks are responsible for spreading Lyme disease. This organism, which feeds on the blood of warm-blooded organisms like mice, deer, and humans, is best described as a (1) predator (3) parasite (2) scavenger (4) host