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Horizontal gene transfer can occur through several mechanisms. Why is this relevant to humans?

A. Bacteria can divide quickly using binary fission.
B. Bacteria can exchange genes for resistance to antibiotics in this way.
C. Viruses can infect bacteria, inserting their genetic material into the bacterial DNA.
D. Bacteria are never beneficial to humans.
Gene mutations can be passed on to future generations and drive natural selection.

Choose the best description of how gene mutations are involved in evolution.

A. All gene mutations are passed to future generations and over many generations will contribute to the evolution of new species.
B. Gene mutations can be helpful, harmful, or neutral for an organism's survival. Only mutations that are helpful in the organism's environment would influence its survival and reproduction.
C. Gene mutations often skip generations, with advantageous traits showing up several generations after the gene mutation was first introduced.
D. Gene mutations can be dominant or recessive for an organism. Dominant genes will be adaptive for future generations, but recessive genes won't.

Species can vary in several ways. Which of the following is one of Darwin's ideas that was accepted by most scientists of his time due to the large number of fossils being discovered at that time?

A. Species vary around the world.
B. Species have specific adaptations to their local environment.
C. Species that live in seawater can also live on mountains.
D. Species change over long periods of time.

Dinoflagellates can perform photosynthesis and provide energy for themselves and for the coral that they live near. The coral provide protection to the dinoflagellates. This is an example of a

A. parasitic relationship.
B. commensalistic relationship.
C. mutualistic relationship.
D. dependent relationship.

Plants can reproduce

A. only by cutting or budding.
B. only using pollination.
C. sexually and asexually.
D. constantly.

The idea that viruses originated as genetic material that was able to move within a genome, eventually exiting a cell and entering another is the _______ hypothesis.

A. coevolution
B. regressive
C. recessive
D. progressive

The wings of insects, birds, and bats evolved independently but carry out similar functions. This is an example of

A. analogous structures.
B. embryonic structures.
C. vestigial structures.
D. homologous structures.

Respuesta :

i'm not sure but I think the first answer is C

Answers and explanations:

Horizontal gene transfer can occur through several mechanisms. Why is this relevant to humans?

B. Bacteria can exchange genes for resistance to antibiotics in this way.  This mechanism is relevant because antibiotic resistance is one of the most important public health challenges

Choose the best description of how gene mutations are involved in evolution.

B. Gene mutations can be helpful, harmful, or neutral for an organism's survival.

Only mutations that are helpful in the organism's environment would influence its survival and reproduction. Mutations are the primary source of variation and the material that selection can act on

Species can vary in several ways. Which of the following is one of Darwin's ideas that was accepted by most scientists of his time due to the large number of fossils being discovered at that time?

D. Species change over long periods of time.

This principle is referred to as "gradualism" and is fundamental to Darwin's evolutionary studies

Dinoflagellates can perform photosynthesis and provide energy for themselves and for the coral that they live near. The coral provide protection to the dinoflagellates. This is an example of a

C. mutualistic relationship.

Mutualism is a biological interaction among different species where they are benefited and therefore improve their biological fitness.

Plants can reproduce

C. sexually and asexually.

Plants produce flowers with sexual organs and they also produce asexual structures such as, for example, tubers for asexual reproduction

The idea that viruses originated as genetic material that was able to move within a genome, eventually exiting a cell and entering another is the _______ hypothesis.

D. progressive  

The Progressive hypothesis states that viruses originated as genetic material that was able to move within a genome, eventually exiting a cell and entering another

The wings of insects, birds, and bats evolved independently but carry out similar functions. This is an example of

A. analogous structures.  

Analogous structures are structures that have the same functions but they appeared independently during evolution