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3 years ago

if you place an e in the slide of a microscope and move the slide to the left and what direction would they appear to move

Biology

2 answers:

Mashutka [201]3 years ago

5 0

<span>they would appear to move to more right</span>

Darina [25.2K]3 years ago

5 0

Answer:

A microscope has many parts and functions but there are three that I will explain. An arm of a microscope is located by the eyepiece on the top and the base. The arm is the best way to it pick up and place somewhere else. An arm also has a coarse adjustment knob. The adjustment knob is to focus on the object on the stage. It is located at the bottom of the arm. At the bottom of the stage, there is a diaphragm. A diaphragm controls the amount of light that is projected onto the slide from the light source. When the slide was moved to the left, it appears to image appears to move to the right. And when the slide is moved to the right the fibers are moved left.

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A biologist is studying the possible role of earthworms on the fertility of farm soils. As part of this research, the number of

dimaraw [331]

Answer:

Taking more samples from different parts of an acre.

Explanation:

Validity and accuracy of the data is crucial for any serious research. In this particular case, the most accurate data would be obtained if earthworms would be counted on the whole acre. Of course, this would consume lot of time, people, money etc. That's why methods for estimation are used. Estimation best works with large number of samples. Since one acre equals over 4000 square meters, taking only five samples from such a big area is simply not enough for obtaining valid data.

One of the possible ways to improve estimation is to take more samples per acre while avoiding taking adjacent samples because it could be possible that number of earthworms in one part of an acre is increased (or decreased) for any reason, which would lead us to wrong conclusion.

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3 years ago

Discuss the order in which seed dispersal mechanisms could have evolved

sladkih [1.3K]

The fossil records of primitive plants show a variety of seed dispersal mechanisms that has been adopted by plants at various stages and how they have evolved. The most primitive of this seed dispersal mechanism is the Anemochory

Anemochory is the dispersal of seed through the wind. The seeds have wing like structures and are lightweight to be able to fly away with the wind. They are dull colored and are pale that will prevent the seed from being visible.

Hydrochory is the next order of evolution of the seed dispersal mechanism which became majorly adopted by plants that tend to grow near water sources and those whose seeds are too heavy to fly in the air. One of the best examples is the coconut that falls off on the sea water in the coastal areas and floats to other lands and sprouts to a new plant.

Barochory is the dispersal of the seed through gravity. This is the mechanism where the fruit falls off to the ground due to gravity and grows into a new plant.

Endozochory is the dispersal of the seed through animals. In this case the seed is usually covered with a fleshy edible part which is consumed by the animals and in this process the seed goes into the digestive system of the animal and is excreted in a different place from where the seed can sprout into a new plant.

Ballochory is the dispersal of the seed due to the forceful ejection of the seed by explosive dehiscence of the seed. This lets the plant to place its seeds in a distant area. One of the best examples is the Hura Crepitans which is also called the dynamite tree, named after its exploding fruits.

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3 years ago

Read 2 more answers

Which neural center in the limbic system helps process explicit memories for storage?

aev [14]

Hippocampus

It is a small part of the brain located on the medial temporal love and forms important part of the limbic system, these are the regions that regulates emotions. This is also associated with memory, spatial navigation, consolidation of information. Damage to this area can cause memory loss, difficulty establishing memory . In Alzheimer's disease hippocampus is one of the first regions in the brain to be affected.

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3 years ago

In one sentence, summarize what resting metabolic rate is.

Vikki [24]

Resting metabolic rate is the rate in which your body burns energy to function while at rest.

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2 years ago

Discuss two friends parents least six exchange

krek1111 [17]

Answer:

A dialogue between father and son for permission

Son : I have a request to you.

Father: Tell me please.

Son : my class is going on a picnic to Murree..

Father: What is your purpose?

Son : I also want to go with my class.

Father: Who are going on picnic?

Son : Rashid, Faheem, Saleem, Yaseen all are going on picnic.

Father: For how many days is your class going to Murree?

Son : Only for one week.

Father: When will your class go?

Son : Today at night.

Father: O.K. you may go. How much money you want?

Son : Only one thouasnd.

Father: All right take your money. Keep mobile with you so that connection between you and me could remain alive.

Son : Mother! It is great pleasure, father has allowed me to go on picnic. Please give me three suites of different varieties and pack my bag.

Father: But I shall go to leave you with your mother at railway station because you are my only son.

Son : Father, please give me your camera so that I could take different photos of my friends and myself.

Father: It is a great pleasure for me that you have demanded money and camera for the first time.

Son : Pray for us because our train is about to leave the station.

Father: May you all comeback safe and sound.

Son : Goodbye

Father: Goodbye.

4 0

2 years ago