active transport mechanism
The Arctic and the summits of mountains are home to tundra ecosystems, which are characterized by their lack of trees and harsh climates with little rainfall.
Snow covers tundra lands for the majority of the year, but summer provides bursts of wildflowers.
The small plants of the tundra employ dormant strategies, producing seeds only occasionally, turning with the sun to absorb energy, and growing protective coverings.
The ability to build subterranean insulated tunnels as well as heavy winter coats, seasonal color-changing camouflage, and efficient body shapes have all been developed by animals that live in the Arctic tundra.
Therefore, The Arctic and the summits of mountains are home to tundra ecosystems, which are characterized by their lack of trees and harsh climates with little rainfall.
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Answer: Plants and animals are able to survive in the tundra because they have adaptations that allow them to thrive in the harsh conditions of the Arctic and sub-Arctic regions. These adaptations include thick fur or feathers to insulate against the cold, small body size to minimize heat loss, and the ability to store food and nutrients during the short growing season. Additionally, many tundra plants have shallow roots that can absorb nutrients quickly when they are available, and some have developed the ability to photosynthesize at low temperatures and with minimal sunlight.
Golgi bodies produce, package, and deliver a product in pinched-off vesicles.
Explanation:
When enough proteins have been created a vesicle is pinched off of the membrane. This development of vesicle then moves through the cytoplasm from the endoplasmic reticulum to the Golgi apparatus. ... The contents of the secretory vesicle are released to where they are required within the cell. The Golgi apparatus collects simple molecules and connects them to make molecules that are more complex. It then takes those big molecules, packages them in vesicles, and unless store them for later use.
The food for dicot embryos is stored in the endosperm while food for monocot embryos is stored in the cotyledons.
Ecologist make models to be able to examine complicated environmental processes more readily and quickly.
Ecologists can also attempt to forecast what will happen in the future. Ecologists use the model to analyze natural events in order to better understand them.
An ecosystem model is an abstract, typically mathematical, representation of an ecological system (varying in scale from an individual population to an ecological community or even a whole biome) that is examined in order to get a better understanding of the real system.
There are two types of Ecologist Models;
(1) analytic models
(2) simulation / computational models.
Thus, to obtain understanding into complicated phenomena such as the consequences of global warming on ecosystems the ecologist make models.
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50 percent tall, 25 percent intermediate, 25 percent short
100 percent intermediate 25 percent tall, 75 percent intermediate