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.
Answer:
inherited
Explanation:
Phenylketonuria is a(n) inherited disorder, meaning that it is passed from generation to generation via DNA.
The correct answer is: The speed of sound is faster in the water than in the air.
The speed of sound is different between those two mediums because they have different densities. Since, water is denser than air, more energy is required to generate a wave but once it stars, it travels faster than it would do in air. Sound waves’ travel can be presented by particles that transmit the energy one to another as they bump. The sound speed is lower in the air (than in water) because particles are far apart, so they travel further before they collide.
The Predator from an Ethiopian Highlands ecosystem is the Wolf. The Wolf is
regarded as a Carnivore and it gets its food from preys through Predation.
<h3>What is a Carnivore?</h3>
Carnivores refer to animals which feed on flesh . Carnivores are mainly
secondary or tertiary consumers in the ecosystem.
They prey on herbivores such as
The prey animal can be classified as Herbivores in terms of feeding
relationships. Herbivores feed on primary producers known as plants.
REad more about Predation here brainly.com/question/13148843
1-3-2-4 here it is by birds u mean vulture right
