1) Ecology is the scientific study of the distribution and abundance of organisms, the interaction among organisms, and the interactions between organisms and their abiotic environment. Ecologists try to understand the inner workings of natural ecosystems and the species they contain.
2) Ecosystems have no particular size. An ecosystem can be as large as a desert or a lake or as small as a tree or a puddle. If you have a terrarium, that is an artificial ecosystem. The water, water temperature, plants, animals, air, light and soil all work together.
3) The biotic factors of an ecosystem include all the populations in a habitat, such as all the species of plants, animals, and fungi, as well as all the micro-organisms. Also recall that the nonliving factors are called abiotic factors. Abiotic factors include temperature, water, soil, and air.
4) For aquatic ecosystems, these factors include light levels, water flow rate, temperature, dissolved oxygen, acidity (pH), salinity and depth.
Hope this helped. ;)
Answer:
Explanation:
I think it is: acetylcholine (neurotransmitter) - motor neuron - contract
second question: diffusion because of opening of ca2+ channels
Sure. Single-cell organisms include bacteria and hens' eggs.
-Homeostasis:maintains stable internal conditions
-Metabolism:cellular respiration
-Growth:biosynthesis
-Made of cells:mitosis and differentiation
-Responds to changes in environment:plant bending towards light
<span>There are two physical differences
between Low pressure systems and </span>High pressure systems.
First, is the circulation surrounding
them.
Secondly, is the atmospheric motion
that they cause.
Low pressure systems circulate counter-clockwise. High pressure systems
circulate clockwise. These "motions" are the
building blocks in our atmosphere. They give us our weather.
A Low’s counter-clockwise circulation forces air upward (ultimately resulting in
condensation, cloud formation and ultimately precipitation). A High’s clockwise
circulation causes a sinking motion in the atmosphere, resulting in fair/clearer
and often sunnier skies.
