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cluponka [151]
3 years ago
10

What is the difference between active transport across a cell membrane and diffusion across a cell membrane?

Biology
1 answer:
kompoz [17]3 years ago
7 0
Diffusion is the net movement of particles from a region of high concentration to a region of low concentration. Down a concentration gradient.

Active transport is the net movement of substances against concentration gradient using energy from respiration.

Hope this helps.
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Which example illustrates that individuals' lives are not entirely shaped by social structures?
Law Incorporation [45]

To illustrates that individuals' lives are not entirely shaped by social structures. Oprah Winfrey was born into poverty but rose to become one of the wealthiest people in America.

<h3>What are social structures?</h3>

The social structure. social structure is important from a sociological perspective because it influences how we behave. It can refer to a group's typical patterns, such as the relationships between men and women or students and teachers. Class Social. according to income, level of education, and standing in the field. Status.

Gender roles, the incest taboo, religious and healing rituals, mythology, marriage, language, art, dance, music, cooking, games, jokes, sports, birth and death because they involve ritual ceremonies as an accompaniment, etc. are examples of elements that may be considered cultural universals.

People learn how to function effectively in a society through a process known as socialisation.

TO learn more about social structures visit:

brainly.com/question/13411246

#SPJ4

7 0
2 years ago
A pure culture in the exponential growth phase has a bacterial concentration of 6.4 x 108 cells/ml. If the bacterium has a gener
finlep [7]

Answer:

856

Explanation:

5 0
3 years ago
How did fossil<br> fuels form, and how<br> are they obtained<br> and used?
Usimov [2.4K]

Explanation:

Fossil fuels are important energy sources for our every day activities.

  Formation of fossil fuels

Fossil fuels forms from the accumulation and burial of organisms in a basin of deposition. Instead of the organisms decaying, they preserve their carbon content. To be worthy of becoming fossil fuels, organisms must be buried in an environment where there is little to no oxygen to fast-track decomposition of the buried organic matter. Increase in temperature and pressure causes the organic matter to transform into fossil fuels.

How are they obtained

First, different fossil fuels have their extraction techniques because they occur in different physical state of matter.

For the solids e.g coal: exploration is carried out first and if a prospect is delineated, mining engineers design the best way to extract the coal from nature. Coal is usually found laid in sedimentary beds in nature. Top layers of sediments can be removed to extract the coal.

For fluids such as crude oil and natural gas, after a prospect is identified, a rig is usually constructed to extract the fluid and gas. The natural pressure allows for the fluids the rise within the drill used in extraction.

How are they used

Coal and gas are used to power electrical generating plants. They are used to heat steams which drives turbines and produce electricity.

Natural gas is used as a domestic fuel for cooking and so also coal.

When crude is processed a lot of product is obtained. Gasoline is used to power most internal combustion engines. Some chemicals useful for manufacturing plastics, drugs e.t.c are also derived from the processed crude.

Learn more:

Harnessing fossil fuel brainly.com/question/9231468

#learnwithBrainly

8 0
3 years ago
1. What is the difference between external and internal fertilization? *
Andru [333]
Internal fertilization is the process when the syngamy (union of male and female gamete) occurs inside the female body after insemination using copulation. In contrast, External fertilization is the syngamy outside the female body, that is in the outer environment especially in water bodies.
7 0
3 years ago
Please Help! Which terms describe the periwinkle snails? Select all that aply more than one answer!
s344n2d4d5 [400]

Answer:

a, b, d, and f.

Explanation:

<em>The periwinkle snails feed on plants. Consequently, they are said to herbivorous and heterotrophic since they cannot manufacture their own foods. They are also referred to as primary consumers because they directly feed on plants without any other nutritional option. They, therefore, occupy the second trophic level on a typical food web. </em>

The correct options are a, b, d, and f.

7 0
3 years ago
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