Asexual/Sexual

A scientist is studying two types of worms. Worm X has DNA identical to its parent. Worm Y has a combination of DNA from two parents. The scientist determines that one of the worms has a survival advantage over the other worm. Which statement correctly summarizes this conclusion?

Worm Y reproduces sexually, which gives it genetic variation.

For which organism does the scientist need to collect more information to determine if it reproduces sexually or asexually?

Y

Amelia makes a Venn diagram to compare the advantages and disadvantages of asexual reproduction and sexual reproduction. Which label belongs in the region marked X?

less competition for resources

An advantage of _______________________ reproduction is that a genetic disorder in a parent might not affect the offspring.

sexual

Koala bears reproduce sexually. Which statement describes how a young koala's DNA compares to the DNA of its parents?

Half of its DNA comes from each parent

E. coli is a species of bacteria. What advantage does E. coli have over sexually reproducing organisms?

The bacteria require less energy to make offspring.

How are the processes of asexual reproduction and sexual reproduction different? Select three options.

They involve a different number of parents, only one process involves sperm and eggs, and only one process involves meiosis.

Two scientists are debating how to classify a new animal species that they have discovered. They observe that the animal is capable of producing sperm. What statement would they most likely make about the new species?

This animal produces offspring that are genetically different from itself.

A species of asexually reproducing bacteria can have new offspring in 40 minutes, and a species of sexually reproducing salamanders can have new offspring in 48 months. Which statement best describes this situation?

This is an advantage for the bacteria and a disadvantage for the salamanders.

A student makes a Venn diagram as a study aid to compare asexual reproduction and sexual reproduction. Which process belongs in the region marked X?

fertilization

Ryder needs to determine the missing term in this set: sperm, egg, zygote, ________ Which term best completes the set?

fertilization

What are the main differences between asexual reproduction and sexual reproduction?

Asexual reproduction requires only one parent and produces identical offspring, while sexual reproduction requires two parents and produces non-identical offspring.

What is required for sexual reproduction to occur?

an individual that produces sperm and an individual that produces eggs

A disadvantage ______________________ of reproduction is that offspring generally have more competition for resources, such as food and living space.

asexual

What reproductive process do bacteria use by forming two identical cells from one parent cell?

binary fission

Which of the following are forms of asexual reproduction?

binary fission, fragmentation, sporulation