What is a physical or mental representation of an object or an event

Which would most likely happen to a unicellular organism if it was exposed to a hypotonic solution for An extended period of tim

tia_tia [17]

Here cells have more water compared to solution which is hypertonic. ... What happens when a plant cell is placed in a hypotonic solution? .... When plant cells are exposed to hypertonic environments, .... If a cell is hypertonic for a long time, it can burst due to excessive gain of water.

5 0

3 years ago

What variations do we see in forest types

Elza [17]

There are multiple different forest types on the planet, all of them with their own unique characteristics creating a certain forest ecosystem.

The tropical forests are evergreen, so are the boreal forests, but the temperate forests shade their leaves each autumn and grow them again in the spring. The tropical forests are fully active all year around, the boreal despite being green all the time are not active for big portion of the year, while the temperate forests are active from the end of the winter until mid autumn. The tropical forests create a lot of material for decomposition thus making the top part of the soil very fertile, the boreal forests do not create a lot of material for decomposition but instead very little which makes the soil relatively poor, and the temperate forests create a lot of material for decomposition especially in the autumn when they shed their leaves, thus contributing to very fertile top layer of the soil. The tropical forests have enormous biodiversity, the boreal forests are very monotonous and have very little biodiversity, while the temperate forests are kind of in between with medium level of biodiversity.

6 0

3 years ago

• nitrogen-fixing • producer • biosphere • consumer • biotic factor • heat • condensation • parasitism • commensalism • neritic

Katarina [22]

<u>Nitrogen-fixing bacteria</u> carry out the conversion of gaseous nitrogen to a biologically useful form of nitrogen
An energy pyramid illustrates that energy in the form of <u>heat</u> is lost to the surroundings as it is passed from one organism to the next
The energy role of a grizzly bear is that of a <u>consumer</u> because it cannot make its own food
<u>Decomposers</u> cycle nutrients from dead organisms back to the soil, where it becomes available for plants
The <u>Savanna</u> biome is characterized by its lack of trees, warm temperatures, and moderate rainfall

Explanation:

The nitrogen-fixing bacteria like Azotobacter which lives in symbiotic relationship in the rhizomes of leguminous plants. They convert inorganic atmospheric nitrogen gas through the action of its enzymes like nitrogenase to organic nitrogen in the form of ammonia, which is readily assimilated by the plants.
In an ecosystem, at each tropic level of an energy pyramid, only 10% of energy is utilized and transferred to the next higher tropic level whereas the majority of energy is dissipated as heat during various metabolic processes.
Decomposers also called saprophytes like earthworms, bacteria, fungi survives on dead and decayed remains of plants and animals and also on fertilizers, pesticides etc in the soil. They recycle the nutrients by breaking down the complex biomolecules into simpler forms and release back into the soil.
Grizzly bears being omnivores eat both plants and animals according to their availability. Hence they are both primary and secondary consumers.
Savanna is a grassland biome with a typical tropical wet and dry climate and receives moderate rainfall. Hence it cannot support trees but only have grasses.

6 0

3 years ago

Based on the current understanding of this operon, which hypothesis would be useful for James to test? Addition of allolactose t

morpeh [17]

<h2>Answer</h2><h2>The answer is: Addition of allolactose to the bacterial growth media should increase the speed at which the bacteria metabolize the sugar lactose.</h2>

Explanation:

I took the quiz

4 0

3 years ago

Read 2 more answers

Gg is a heterozygous genotype that would show

Leya [2.2K]

"Biological" redirects here. For other uses, see Biological (disambiguation).

Biology is the scientific study of life.[1][2][3] It is a natural science with a broad scope but has several unifying themes that tie it together as a single, coherent field.[1][2][3] For instance, all living organisms are made up of cells that process hereditary information encoded in genes, which can be transmitted to future generations. Another major theme is evolution, which explains the unity and diversity of life.[1][2][3] Finally, all living organisms require energy to move, grow, and reproduce, as well as to regulate their own internal environment.[1][2][3][4][5]

Biology deals with the study of life and organisms.

top: E. coli bacteria and gazelle

bottom: Goliath beetle and tree fern

Biologists are able to study life at multiple levels of organization.[1] From the molecular biology of a cell to the anatomy and physiology of plants and animals, and to the evolution of populations.[1][6] Thus, there are multiple subdisciplines within biology, each defined by the nature of their research questions and the tools that they used.[7][8][9] Like other scientists, biologists use the scientific method to make observations, pose questions, generate hypotheses, and perform experiments to satisfy their curiosity about the world around them.[1]

Life on Earth, which emerged before 3.7 billion years ago,[10] is immensely diverse. Biologists have sought to study and classify the various forms of life, from prokaryotic organisms such as archaea and bacteria to eukaryotic organisms such as protists, fungi, plants, and animals. These various living organisms contribute to the biodiversity of an ecosystem, where they play specialized roles in the exchange of energy and nutrients.

5 0

3 years ago

Read 2 more answers