C. Forest fires
because it destroys habitat and ecosystems
there is also loss of wildlife.
<h3><u>Answer</u>;</h3>
d. Na+
<h3><u>Explanation</u>;</h3>
- The cell membrane's main trait is its selective permeability, which means that it allows some substances to cross it easily, but not others.
- <em><u>Small molecules that are non-polar (have no charge) can cross the membrane easily through diffusion, but ions (charged molecules) and larger molecules typically cannot.</u></em>
- Charged ions such as N+ and K+ Cannot permeate the cell membrane for the since uncharged molecules repel uncharged molecules present in the membrane structure.
Answer: All proteins contain carbon, hydrogen, oxygen, and nitrogen.
Answer:
A) can bring economic benefits and food security to many developing regions
Explanation:
Breeding, rearing, and harvesting of aquatic plants and animals to sell them and gain economical benefit is called aquaculture. Aquaculture provide many type of benefits like it helps in increasing the global food production therefore it bring food security to many developing region.
It provides a cheap source of protein to the world population. It creates jobs and helps in increasing the economy of a country because it can bring a large amount of money with a small investment. Therefore the correct answer is A.
You are not supposed to begin the observation of specimens with oil immersion lens.
The microscope is an instrument used in science laboratories to study specimen that cannot be seen with the naked eyes.
The specimen for viewing through a microscope are usually prepared as thin slices or sections.
Among the various parts of the microscope are the x10, x40, and x 100 objective lens.
The x100 objective lens is known as the oil immersion lens because oil is added while using the lens to reduce the amount of light refraction thereby allowing more light to pass through the narrow diameter of the high power objective lens.
The x10 objective which is of lower power, should be used to focus the specimen while the higher power objective which is the x100 oil immersion used for closer observation.
Therefore, you are not supposed to begin the observation of specimens with oil immersion lens.
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