Answer:
Sperm-egg interaction
Explanation:
The formation of fertilization envelope is well-studied on the model system- sea urchin. It has been shown that, the fertilization envelope is formed after the initial sperm-egg interaction from the egg surface vitelline envelope and the paracrystalline protein fraction which is derived from cortical granules. Secretion from cortical granules, prevents polyspermy.
Primary producers use an energy source (usually sunlight) to build organic molecules.
Answer:
Information about flowers
Explanation:
1. A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants. The biological function of a flower is to affect reproduction, usually providing a mechanism for the union of sperm with eggs.
2. Information about stamen and pollen: The stamen is a male reproductive organ of a flower. It produces the pollen. The stamen has two parts: anther and stalk. After successful pollination, the pollen grain (immature microgametophyte) completes it's development by growing a pollen tube and the two male gametes move through the pollen tube to the ovule.
sorry if it's too long. hope this helps!!
In ecology, the law of conservation of mass is applied by the principle of taking energy from the lower trophic levels and passing it to the higher trophic level by any means.
<h3>What is the law of conservation of mass?</h3>
The law of conservation of mass states that the actual mass in an ecosystem is neither created nor destroyed. Overall remains constant in a system.
In ecology, it illustrates that when an organism is ingested by other organisms, its mass is conserved. Some of the organisms may also be dependent on the waste products like urine and feces to make proteins and other compounds.
Therefore, the energy or mass is neither lost in any form. It simply is taken by other organisms through any means.
To learn more about Ecological principles, refer to the link:
brainly.com/question/7413811
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