According to Darwin's model of evolution, evolution can only occur if there is some
variation present among the individual members of a population. Which statement BEST
describes the source
of this variation among members of a species?
(1 point)
Variation among individuals may arise as a result of mutations in the genetic code.
Individuals will vary depending on geography and climate.
Variation exists because different individuals will have different access to food and
other resources.
Variation exists because not all genes will be expressed.

Question

sunlessflowery0d sunlessflowery0d

09-05-2024
Biology

Answered

According to Darwin's model of evolution, evolution can only occur if there is some
variation present among the individual members of a population. Which statement BEST
describes the source
of this variation among members of a species?
(1 point)
Variation among individuals may arise as a result of mutations in the genetic code.
Individuals will vary depending on geography and climate.
Variation exists because different individuals will have different access to food and
other resources.
Variation exists because not all genes will be expressed.

Verified Answer :

Related Questions

Who were British allies that attacked settlements on the frontier French the Iroquois Spanish

Jennifer its two pennies 105 times how many times can expect both going to come up heads

David has just been tasked with stocking a large order of drugs that was purchased by his retail pharmacy They were probably delivered from an a health maintena

Which pronoun or pronouns correctly complete the sentence Everybody had chosen own meal to eat on the field trip A his or her B their C theyre D its

In what ways does the nile river support life

A person with cystic fibrosis releases few enzymes into their small intestine Explain what problems this causes Thanks

Although Shackletons mission to cross Antarctica by foot failed the Imperial TransAntarctic Expedition is hailed as a milestone in expedition history Why

What should be included in the introductory paragraph of an argumentative essay A background information and supporting evidence B supporting evidence and claim

Examine lines 16 through 18 and select the answer that describes the poetic technique used there

Mark Antony expertly used or the language of persuasion to provoke the Roman crowd into a riot a rhetoric b characterization c falling action d theme

GinnyAnswer GinnyAnswer · Answer 1 · 2024-05-09T20:31:06-04:00

According to Darwin's model of evolution, variation among individuals in a population is crucial for evolution to occur. The best statement that describes the source of this variation among members of a species is:

1. Variation among individuals may arise as a result of mutations in the genetic code.

Mutations are changes in the DNA sequence that can create new genetic variations within a population. These mutations can be caused by various factors such as errors during DNA replication, exposure to mutagens like radiation or chemicals, or even through genetic recombination during sexual reproduction. When mutations occur, they introduce new genetic diversity into a population, leading to variations among individuals. This variation provides the raw material upon which natural selection can act, allowing for the adaptation and evolution of species over time.

While factors like geography, climate, access to resources, and gene expression can influence variations among individuals to some extent, mutations in the genetic code are the primary source of new genetic variations that drive evolutionary changes in populations.