Biology, 03.09.2021 14:00 tiffanybrown703

AND 100 PTS 1. Find the volume of an object with linear sides or a common geometric shape.

These supplies are needed: a metric ruler and an object with linear sides or a common geometric shape

A. Volume equals length times width times height (V = l × w × h). The amount of space that an object takes up is its volume.

B. Measure in centimeters (cm) the length, width, and height of the object and record your answers.
Note: Be sure you included the units (cm) with each measurement.

C. Multiply the length by the width by the height. This is the volume of the object.

Volume = l × w × h = × × = cm3

Since you went from linear measurement (cm) to cubic measurement (cm3 ), the units change and your answer will be in cubic centimeters (cm3 ).

2. Find the volume of an irregularly-shaped object.

These supplies are needed: string, water, small rock, graduated cylinder

A. Pour water into a graduated cylinder until it is about half full, stopping at one of the level marks on the cylinder.
B. Read and record the level of the water. This reading is the volume of the water. Be sure you are reading at the lowest point of the curved surface or meniscus. Study Figure 1 above to see how to read the correct level.

C. Tie the string on the rock and lower the rock completely into the water. Let it settle at the bottom.

D. Record the level of the water with the rock in it. This reading is the volume of the water and the rock.

E. Find the volume of the rock by subtracting the reading of the water from the reading of the water and the rock.
(water and rock) - (water) = cm3. Your answer is the volume of the rock.

3. Compose a scientific summary of your method, observations, data, and conclusions. In addition, be sure to answer the questions below in your report.

Why does the first method for determining volume work only for a regular-shaped object?

Will the second method for determining volume work for any object or just an odd-shaped one? Why?

Is one method of measurement more accurate than the other? Why or why not?

Would the displacement method of measurement work for a cube of sugar? What about a cork? Why?

What did you find out from this investigation? Be thoughtful in your answer.

Answers: 1

Show answers

Answers

Answer from: Quest

tissue

explanation:

it is actually formed by geoup of cells which is tissue

Answer from: Quest

Grape jelly so a y did you ask this question

Answer from: Quest

This is s cute awee : (( . well if she's showing you signs that she may like you , then shoot your shot ! don't be afraid . & if you're unsure that she's giving you these signs , then wait out for a little bit . most girls are different . some may act really sweet , but only bc you're a good friend of hers . that , or she might like you . you just never know . but i think you should sit down with her & tell her how you feel . but don't be awkward & shy . just be straight up & tell her how you feel . if the feelings aren't mutual , then don't cry about it . you need to respect her decision & look for others in the world . feelings can be difficult & confusing , but don't be afraid to show them . i say you play it out & if you're still unsure about it , talk to her . - rach

Answer from: Quest

i believe the correct answer is the virus gets an envelope that contains host molecules when it leaves the host cell.

explanation:

during the bidding/release stage of a virus, it encapsulates itself with part of the membrane of the host cells in this case the cells of the monkey and is the reason as to why the scientist found the genetic material of the monkey on the viral cell surface.

further explanation

to understand this answer, we have to know the cycle a virus undergoes to replicate. a virus is basically a bunch of genetic material enclosed in a capsule and lacks any machinery or organelles to ensure their survival so they must enter a host cell in order to get the environment needed to survive. some viruses enter and lyse(destroy) the host cell after they have replicated and undergo the lytic cycle while some enter and leave the cell intact after replicating and these undergo a lysogenic cycle. to enter the cell, they undergo the first process called attachment by binding to specific receptors and co-receptors on the surface of the host cell. after attaching to the cell, they start the second phase called penetration where virus enters or is engulfed whole by the host cell through a process called endocytosis. it is the same process that a cell takes up materials it needs or pathogens around it. uncoating of the virus then happens after the virus has been engulfed and is the third stage. the virus then undergoes releasing of its genetic material in the host's matrix. the materials then enter the nucleus and undergo biosynthesis by adding themselves in strands of rna being translated and then copies of the virus are produced in addition to the host genetic material. the material/newly formed viral material then undergoes assembly inside the host cell and form a capsule around them. the virus undergoes the last release/budding stage by binding to the host membrane and pushing outwards. in doing so when they tear away from the host membrane, they pick up the genetic material from the membrane of the host cell to form their envelope.

learn more:

level: high school