Answer:
A single phospholipid molecule has a phosphate group on one end, called the “head,” and two side-by-side chains of fatty acids that make up the lipid “tails. ” The phosphate group is negatively charged, making the head polar and hydrophilic, or “water loving.” The phosphate heads are thus attracted to the water
Explanation:
Answer:
cells have many structures in them which can also be called organelles
Explanation:
these organelles are like the organs of humans
each organelles have their own function
they help the cell to stay alive
Answer:
The correct answer would be B) there are no similarities in the embryos of all four groups.
There are similarities in various stages of the embryonic development of different species. They look very similar in the early stages of development. The ancestors of the different animals are same and this implies that they are related.
For example, the embryo of both human and fish has gill slit but in the later stages, the gill slit of human embryo disappears. The difference in later stages shows the evolution of different traits but the beginning of creatures are same.
It is why comparative embryology is also used to provide evidence of evolution.
Thus, the development of four vertebrates and suggests all of the following EXCEPT there are no similarities in the embryos of all four groups.
Answer:
in the explanation box
Explanation:
body's immune system trying to protect the wound from infection. The wound becomes red because blood vessels are opening so blood can bring oxygen and nutrients to the cut area, oxygen is needed for healing.
Hello,
<span>The most significant characteristic of sexual reproduction is the fact that the offspring's traits/ characteristics are not identical to the parents' traits. So, there is a variety of looks and traits passed down.
</span>Hope that this would help you! =)