Answer:
I can only see the very first one and it only needs a rotation. Can you add pics of the others.
Explanation:
<h3><u>Answer;</u></h3>
Ectoderm
During gastrulation in frogs, cells from the animal pole spread over the embryo and form the <u>ectoderm</u>.
<h3><u>Explanation</u>;</h3>
- <em><u>Gatrulation is when the three germ layers form around the embryo in preparation for the next step of embryogenesis, that is organogenesis. The three germ layers namely; ectoderm, endonderm and mesoderm are the basis of all the organs that will form after this stage.</u></em>
- Ectoderm is the outermost layer, which later froms may different lining such as the outer layer of the skin, esophagus, and many other organs. Endoderm is the inside layer of gastrula and forms the digestive tract of the embryo. Mesoderm is the middle layer and ends up becoming the skeletal muscles of organisms as well as bones, blood, and sex organs.
Answer:
The correct answer is D.
Explanation:
Scientists observed and discovered that some traits in certain embryos disappear as the embryo develops.
Hopefully, this helps! :D
Ask your question below!
Answer:
a. The eggs are at risk of being disturbed only during the brief egg laying season when many lizards are digging in a relatively small area.
Explanation:
Lizards work like this, some species have egg to reproduce the babies, in this case, the lizard just stay some days to watch that there are no possible risk for the eggs. If the animal is completely sure that is a safe and a good place to leave the eggs, the lizard continue to do its own life.
After some months, the baby lizard need to figure out how to survive in this new world, as his/her mother did. They need to use its instinct.
