Breathing is the exchange of gases between animals & the environment.
Answer:
Egg cells are larger than sperm cells because they carry Cytoplasm and Organelles for cell division and growth to start while the sperm cells are basically a cell Nucleus and a tail.
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1. the inheritance of each gene is determined by the units that are passed down 2. an individual will get one unit from each of their parents
3. a trait may not show up on an individual but it can still be passed on to a descendant
The process that would stop if a chemical that interrupts cell division was added to a culture of human liver tissue is mitosis.
This is because cell division is mitosis and if the chemical stops cell division that means it stops mitosis.
Answer:
The hydrophobic core of the membrane does not allow the charged particles to pass through it.
Explanation:
The inner core of the membrane is made up of hydrophobic fatty acid tails of phospholipids. Due to this, some substances such as large, charged and polar particles cannot cross the membrane. This is why Na+ with a positive charge cross the membrane with the help of transport proteins only. On the other hand, molecular oxygen (O2) has a small structure and does not carry any charge. Therefore, it can cross the membrane without any help of transport proteins.