pollen
B.
spores
C.
seeds
D.
gametes
All multicellular organisms need gametes for sexual reproduction to occur. Option D is correct.
Sexual Reproduction:
It is method of reproduction in which gametes of two different parents fertilize to for zygote.
Therefore, all multicellular organisms need gametes for sexual reproduction to occur.
To know more about gametes,
Short answer: yes. That is exactly how they are classified.
A paramecium is a small one celled (unicellular) living organism that can move, digest food, and reproduce. They belong to the kingdom of Protista, which is a group (family) of similar living micro-organisms. Micro-organism means they are a very small living cell.
Hope that helps:) Brainliest??
2. Limiting nutrient
3. Dead organisms and solid waste
4. Human activity
5. 80% of air
a. can cause eutrophication
b. nitrogen gas
c. account(s) for even more production of nitrogen than nature does
d. Amount available can determine how fast growth happens.
e. contain(s) nitrogen compounds that are converted by bacteria to ammonia
C.hoursetails they are very thick so I would go with that!!!!
good luck!!!