Answer:
The egg cell is fertilized by the sperm cell in the ovary of the flower.
Explanation:
It is similar to human fertilization and the rest of the answers are incorrect.
The air-filled spaces lined by mucous membranes found within flat and irregular bones in the body are called the sinuses.
<h3>What are bones?</h3>
The bones are the solid structures that we find in the body. The bones of a person are about two hundred and six in number. The primary function of the bones is to support the structure of the of the individual and to protect the vital and fragile structures such as the brain and the heart.
The air-filled spaces lined by mucous membranes found within flat and irregular bones in the body are called the sinuses.
Learn more about sinuses:brainly.com/question/28067493
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Answer:C. smooth ER
Explanation:the endoplasmic reticulum is a membrane bound organelle found in the cytoplasm of the cell.it has a highly folded appearance.
Its function in the cell is the transportation of cellular products.
There are two types of endoplasmic reticulum;the rough endoplasmic reticulum and the smooth endoplasmic reticulum.
The rough endoplasmic reticulum have ribosomes attached to them ,giving them a granular appearance.the ribosomes synthesis proteins,which the rough endoplasmic reticulum transports outside or within the cell.
The smooth endoplasmic reticulum do not have ribosomes attached to it.its functions is to synthesis lipids.
It is also involved in the production of steroid hormones in the adrenal cortex and endocrine glands
Aerobic respiration is a chemical process inside cells which uses oxygen for the production of energy in the form of ATP. The waste products are carbon dioxide (CO2) and water (H2O). Aerobic reaction takes place within the mitochondria (inner membrane) and it consists of few steps: link reaction, citric acid cycle (or Krebs cycle) and the electron transport chain.