Susan planted a few sunflower seedlings in her garden. after a few days, she noticed the appearance of tiny leaves at the apex. activity in which part of the plant stem could have caused this?

humans are now responsible for causing changes in the environment that hurt animals and plant species. we take up more space on earth for our homes and cities. we pollute habitats. human activity often changes or destroys the habitats that plants and animals need to survive.

it would lead to upper respiratory infections and pneumonia.