The answer is A.Sperm and eggs
Answer:
11. Something killed 90 percent of the planet's species approximately 250 million years ago, near the end of the Permian epoch. In the seas, just about 5% of animal species survived.
12. water bears, also known as tardigrades, are tough organisms that can withstand high temperatures.
13. DNA is found in every cell of every living creature, practically every cell in a multicellular organism has all of the DNA it needs.
14. Titan features a low-temperature version of Earth's water cycle, with liquid on the surface that evaporates, creates clouds, and then condenses to fall as rain—but the liquid is a mix of methane, ethane, and a trace of other hydrocarbons on Titan.
15. The Earth could not even support life at first. The atmosphere was devoid of oxygen, and the Earth's surface was scorching hot. The Earth gradually transformed over millions of years, allowing plants and animals to begin to grow. The Earth was then further altered by living organisms.
This may say that the species is affected or infected by a disease.
2 and 3 i think should be right
I think the appropriate answer for the above question is the Organochlorine insecticides which is a chemical pesticide. Their mode of action varies but mostly affects the nervous system, they are highly persistent, their sensitivity to insects is least specific ( broad spectrum). Their long environmental persistence, results in fish, bird, and terrestrial animal death. The chemical groups of pesticides include the organophosphates and carbamates, organnochlorine, botanicals, synthetic pyrethroids, insect growth regulators and the microbials.
