Mammals reproduce through a process called sexual reproduction. during this process, which involves two a.
a female egg cell and a male sperm cell each develop separately into an offspring that is different from both parents.
b.
a female egg cell combines with a male sperm cell to make an offspring that is identical to one of the parents.
c.
a female egg cell and a male sperm cell each develop separately into an offspring that is identical to its parent.
d.
a female egg cell combines with a male sperm cell to make an offspring that is different from both parents.
parents

With sexual reproduction a sperm coming from the male must unite with the female egg. Both are needed for this kind of reproduction, and an offspring CAN'T  be formed without both. Unlike asexual reproduction, the offspring of a mammal reproducing sexually is DIFFERENT from both parents, since the offspring is a combination of both the mother and the father.

An easy to remember example I use when thinking about what sexual reproduction is:

the formation of a human child. A mother with her egg and the father with the sperm is BOTH needed. If you think about siblings that come from the same parents (and therefore same gene pool) they are not all exactly identical to each other. Although they may have similar features, they look different and are NOT genetically identical

Therefor for your question the answer is D.

Hope this helped!

D. a female egg cell combines with a male sperm cell to make an offspring that is different from both parents

Explanation:

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

can i get the brainliest pls

explanation:

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.