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Photosynthesis is essential to all life on earth; both plants and animals depend on it. It is the only biological process that can capture energy that originates in outer space (sunlight) and convert it into chemical compounds (carbohydrates) that every organism uses to power its metabolism.
- 23.6 Plant Sensory Systems and Responses
Flowering plants react to light, gravity, infection by...
- Ch. 1 Introduction
The first forms of life on Earth are thought to be...
- 23.6 Plant Sensory Systems and Responses
17 Ιουλ 2016 · Besides introducing fixed carbon and energy into ecosystems, photosynthesis also affects the makeup of Earth’s atmosphere. Most photosynthetic organisms generate oxygen gas as a byproduct, and the advent of photosynthesis—over 3 billion years ago, in bacteria resembling modern cyanobacteria—forever changed life on Earth 1 .These bacteria gradually released oxygen into Earth’s ...
Learn AP Biology using videos, articles, and AP-aligned multiple choice question practice. Review the fundamentals of biochemistry, cell biology, genetics, evolution, and ecology, and develop scientific thinking skills as you explore the study of life.
Flowering plants react to light, gravity, infection by pathogens, drought, and, as with the Venus flytrap, touch. Animals have two systems on which they can rely to detect and respond to stimuli: the nervous and endocrine systems. Plants, however, only have chemical control mechanisms at their disposal.
A growth response of a plant toward or away from a stimulus. Phototropism is a type of tropism in which plants move away from or toward a light stimuli. circadian rhythm. A physiological cycle of about 24 hours that is present in all eukaryotic organisms and that persists even in the absence of external cues.
Learn animals and plants ap biology with free interactive flashcards. Choose from 500 different sets of animals and plants ap biology flashcards on Quizlet.
The first forms of life on Earth are thought to be microorganisms that existed for billions of years in the ocean before plants and animals appeared. The mammals, birds, and flowers that we see in modern times are mostly “recent” species, originating 130 to 200 million years ago.
