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QUESTION 2. This question refers to Chapter 4, oogenesis. Some cells visible here are very large, unlike most cells, which are barely visible under low power. What are the large cells visible here called? This section is taken from a/an (organ), which is part of the system. Which general type of animal do you think this section is taken from? acrosome EXONIM QUESTION 3. This question refers to sea urchin head fertilization-in Chapter 5 in jelly coal -nucleus the lab-book. Look at Figs. 5.17 and 5.19, if you have midpiece mitochondrion the lab-book, plus the image pronucleus here. You can see the spermatozoa, which are really very small compared to the zitelline layer ovum. The goal of the spermatozoa is to reach the plasma membrane, so that they can bind there before plasma membrane entering the Το reach the plasma membrane, the spermatozoa must pass through the and the layers. In the sea urchins, is this process internal or external (pick one), and where does it occur? —

Answer 1

Ans) First Image:- Secondary follicle, Ovary, Mammalian oocyte.

Second Image:- Vitteline Membrane/layer, it then passes through jellycoat, sperm binding receptors and then get bind to fertilization membrane