I'm pretty sure its true.
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Answer:
Option (3).
Explanation:
The homeostasis of the body is maintained by the feed back loop system. Two main types of the feedback loop system of the body are positive feedback system and negative feedback system.
Positive feedback system may be defined as the feedback in which the final product increases the output of that product. Pepsinogen is an zymogen that helps in the activation of pepsin enzyme. This enzyme helps in the digestion of protein. The digestion of pepsinogen by pepsin result in the more production of pepsin.
Thus, the correct answer is option (3).
Answer:plant that absorbs water and other substances directly through its cell walls instead of through tubelike structures.hey are found close to the ground.
They use diffusion for nutrient transport.
Explanation:
Non-vascular plants are also referred to as bryophytes and are divided into three different types, including mosses, liverworts, and hornworts.
They have the following characteristics;
They lack a vascular tissue system for transporting water and nutrients.
They do not produce flowers, fruits, or seeds.
They also lack true leaves, roots, and stems. Instead, these plants have leaf-like, stem-like, and root-like structures that function similarly to leaves, stems, and roots.
B) Geologic.
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~{Isle of flightless birds}
Answer:
when you observate you know what you're working with
Explanation: