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vodka [1.7K]
3 years ago
15

Explain Lever mechanism .

Biology
1 answer:
andreyandreev [35.5K]3 years ago
5 0

On the basis of the location of fulcrum, load and effort, the lever is divided into three types. It is one of the six simple machines identified by Renaissance scientists. A lever amplifies an input force to provide a greater output force, which is said to provide leverage.

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The classification of algae in taxonomic groups remains a topic of some debate. The classic approach to classification focused o
svp [43]

Answer:Phaeophyta--Described as "hairy" in appearance produce alginic acid, which can be used as a thickening agent.

Rhodophyta ;are utilized commercially to produce carrageenan and can photosynthesize at depths greater than 10 meters

Chlorophyta;Considered the progenitor of land plants, have 18S rRNA sequences comparable to plants

Chrysophyta;The is a diverse group that includes the diatoms, a major component of phytoplankton

Explanation:algae are a diverse group of organisms with majority of them living in water and a few on land. They are green and contains chlorophyll.they also contains phycobillins pigments.

Chlorophyta are green algae that exist in water habitat an example is Chlamydomanas reinhardi.they have similar structures with higher plants such as chlorophyll, cellulose cell wall and stores food as starch.

The chrysophyta includes diatoms.diatoms have a cell wall composed of pectin and deposits of silica. They may occur in large deposit as diatomaceous earth.

Phaeophyta--are brown algae. An example is sea weed they are found in deeper ocean waters. Sea weed has a thallus which branches into a basal holdfast that aids attachment to rocks.their blade allows the plant to float

Rhodophyta are algae which are sometimes Unicellular in form they have a characteristic red color due to the presence of phycoerythrin along with phycocyanin, chlorophyll.they are used as source of algar for microorganism culture.

7 0
3 years ago
The most common form of hemophilia is a defect in blood clotting factor VIII, which is caused by a mutant form of a gene on the
natta225 [31]

Answer:

Nondisjunction during sperm arrangement and formation brought about her getting no sex-chromosome from her dad and an X chromosome from her mom, she is XO.

Explanation:

Nondisjunction during sperm arrangement and formation brought about her getting no sex-chromosome from her dad and an X chromosome from her mom; she is XO.  

It is on the grounds that her mother happens to be a carrier of hemophilia and she transferred that mutant allele to her daughter and due to the fact that she did not get any sex-chromosome from her dad.

However, such mutant (X) communicates and expresses itself and she is hemophilic.

This (X) is not express in her mother because she possesses a recessive trait; as such it appears in the hom8zygous state.

5 0
2 years ago
What are similarities about Early earth and Modern earth
finlep [7]

Answer:

Crust, mantle and core.

Water availability.

Volcanic eruptions.

Explanation:

The main similarities about Early earth and Modern earth is their layers of soil such as crust, mantle and core means that the both  Early earth and Modern earth are made up of these three layers. At that time water is present in huge amount while on the other hand, in Modern earth water is also present in large amount as compared to land. Volcanic eruptions occurs in both early and Modern earth.

4 0
2 years ago
The nurse is instructing a patient with recurrent hyperkalemia about following a potassium-restricted diet. Which of the followi
blondinia [14]

Answer:

"I will not salt my food, instead I'll use salt substitute."

Explanation:

Hyperkalemia may be defined as the medical condition in which the individual has high level of potassium in the body. This hyperkalemia can cause different diseases like cardiac arrest and can also cause death.

The hyperkalemia must be treated on time. The individual must be on low potassium diet. Avoid medicines that can increase the potassium levels and the administration of the sodium bicarbonates. The salt that has low potassium and high sodium concentration must be included in the diet.

Thus, the correct answer is option (b).  

6 0
3 years ago
Describe a few components of the ecosystem in which you live.
Mandarinka [93]
Hello @Alecigarci,

How are you doing? Its asking for things in your ecosystem, so you would say something like Trees, Grass, Squirrels, Humans, Dogs, Cats, Sun, Skies, Water. Do you get where I am going with this? 

I really hope I helped, And if you need any more help contact me!

Thank you,
Darian D. 
6 0
3 years ago
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