Question

32.
Choose the best answer.

The process that drives most of evolution is ______________.

competition

radioactivity

environmental change

overproduction
33.
Choose the best answer.

If all mammals today evolved in 65 million years from a common ancestor, and if one species took 100,000 years to evolve, how many ticks would this be?

700

600

650

550
34.
Choose the best answer.

A group of organisms that are capable of interbreeding and producing viable fertile offspring is a definition of:

heritability

kingdom

phyla

species
35.
Select 3 that apply.

Give examples on things that make humans unique? Select all that apply.

hunters

complex language

singing

abstract reasoning

art
36.
Choose the best answer.

Scientists can tell how old a fossil is by ____________ .

molecular studies

mutation

radioactive dating

natural selection
37.
Matching.

The modern human brain is about
in size and can hold about
billion neurons. The Homo erectus' brain was about
in size and held about
billion neurons.
38.
Choose the best answer.

Gene flow, a mechanism of evolution, works in populations not separated by _____.

physical barriers

mutations

radioactive dating

fossils
39.
Choose the best answer.

_____ is a better explanation for how chromosomes were added in plants, rather than in animals.

Polyploidy

Gradualism

Mutations

Dichotomous
40.
Choose the best answer.

The process of forming a new species from an existing species is _____.

population

gene flow

genetic drift

speciation
41.
Choose the best answer.

What type of naming system do we use for living organisms?

Kingdom

Taxonomy

Dichotomus

Binomial Nomenclature
42.
Matching.

In binomial nomenclature, an organism's
name comes first, and the
name comes second.
43.
Choose the best answer.

Most evolutionary biologist believe that life arose ___________.

from DNA

through chemical processes on early earth

from cell changes over time

organic compounds in rock

Answer 1

32. competition

33. 650

34. species

35. complex language; abstract reasoning; art

36. radioactive dating

37. Modern human brain ≈ 1400 cc and ≈ 86 billion neurons. Homo erectus ≈ 900 cc and ≈ 60 billion neurons.

38. physical barriers

39. Polyploidy

40. speciation

41. Binomial Nomenclature

42. genus name comes first, and the species name comes second.

43. through chemical processes on early Earth