You should ask your teacher to be sure, but I think that you teacher meant like the mode of transmission.... Like genetically inherited and such.
Answer: The father determines the biological sex of a baby
Explanation: Human beings have two sex chromosomes, males have XY chromosomes whereas females have XX chromosomes. During fertilization, an egg from a woman fuses with a sperm cell from a man to form a zygote. Women have two X chromosomes (XX) and any point in time they can only release an egg bearing an X chromosome but males have one X and one Y chromosome, therefore they can either release a sperm cell with an X chromosome or a sperm cell with a Y chromosome. When an egg with X-chromosome fuses with a sperm cell with an X chromosome, the resulting baby is a female but when an egg with an X chromosome fuses with a sperm cell with a Y chromosome, the resulting baby is a male.
What makes the difference in both sexes is the Y chromosome from the man, therefore the father determines the biological sex of a baby.
The answer is d) it encloses specific structures
The answer is nonvascular plants.
The plants that are similar to algae are
called nonvascular plants. They are the plants small plants with the absence of
vascular system. They do not have roots. They have small hair likes that insert
to substrate to keep the plants in place instead of roots. These are called
rhizoids.