Which of the following are examples of sexual reproduction?

Question

A pollen grain from one flower fertilizes another flower, resulting in the development of a seed.
A frog releases sperm over eggs that were laid by another frog, and these cells fuse together.
A yeast offspring grows out of the body of its parent in a process called budding.
A piece of a starfish is broken off and grows into a new starfish in a process called regeneration.
A bacterium copies its DNA and divides into two daughter cells in a process called binary fission.

Answer 1

The examples of sexual reproduction from the options you provided are:

1. A pollen grain from one flower fertilizes another flower, resulting in the development of a seed. - This is a classic example of sexual reproduction in flowering plants, where male gametes (from pollen) fertilize female gametes (in the ovule).

2. A frog releases sperm over eggs that were laid by another frog, and these cells fuse together. - This describes external fertilization, which is also a form of sexual reproduction where male and female gametes (sperm and eggs) combine.

The other options are not examples of sexual reproduction:

• A yeast offspring grows out of the body of its parent in a process called budding. - This is a form of asexual reproduction.
• A piece of a starfish is broken off and grows into a new starfish in a process called regeneration. - This is also a form of asexual reproduction.
• A bacterium copies its DNA and divides into two daughter cells in a process called binary fission. - This is another example of asexual reproduction.

So, the correct answers are the first two options related to sexual reproduction.