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!
The left atrium lacks a group of pace maker cells.
conglomerate
Explanation:
Conglomerates are will rounded clastic sedimentary rocks. They have very large particle sizes. They are used to interpret geological data when found in a sequence.
- They infer a high energy environment because of their size.
- Low energy environment will not be to carry sediments with large particle sizes.
- They show that the sediment has traveled far from their source.
- This can be deduced from their rounded shape.
- It must have undergone episodes of rounding along its journey to the basin.
learn more;
Sedimentary rocks brainly.com/question/9131992
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Answer:
<u>Inheriteted/Beneficial</u>
Explanation:
<em>First drop down</em>: "Sickle cell disease is passed on from parent to offspring."
<u>Inheriteted</u>
<em>Second drop down</em>
A increased resistance to a bad thing (malarial parasites) would be <u>Beneficial</u>
Matter cannot be created or destroyed so it doesn't create matter, but it does gain mass
