BIOLOGY MIDDLE SCHOOL

Does this diagram show complete or incomplete metamorphosis?Explain.y

Answers

Answer 1

Answer:

Answer: Incomplete metamorphosis

Explanation:

Complete metamorphosis includes insects going through 4 stages (egg, larva, pupa, and adult)

Incomplete metamorphosis includes insects going through 3 stages (egg, nymph, and adult)

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What is the relationship between cell and substrate concentration?

Answers

Answer:

The substrate uptake rate depends not only on its concentration but also on other environmental factors (temperature, toxicity, pH, etc.) and on the state of cells, what particular transporters are expressed and take part in nutrients consumption.

What is the mutation caused by the addition of a nucleotide to an already existing gene sequence called?

Answers

Insertion is a type of mutation which adds nucleotide to an already existing gene sequence. It can lead to genetic disorders due to the change of gene sequence. An example of this genetic disorder is the trisomy 21 or commonly known as Down syndrome. Instead of having 46 cells, those people having this disorder have 47 cells because there is an extra copy of there gene 21.

Answer:

it is C. Insertion

Explanation:

i took the test and got a 100%

BRAINLIEST TO BEST ANSWER!!1Make a FLOWCHART that describes how proteins are made in the cell.

Answers

Answer:

this is what i found, hopefully it helps

Explanation:

a sponge 1cm in diameter and 10 cm tall can move 22.5 L of water through its body each day. what volume of water will it pump through its body in i h? in 1 min?

Answers

The part of the question about the size of the sponge is just there to trick you; you don't need it. All you need is the 22.5 L per day.

To find the amount of water it can pump in 1 hour, you divide the 22.5 by 24 because there are 24 hours in a day:

$((22.5L)/(day))((day)/(24hours))=0.9375\ liters\ per\ hour$

Now that we have hours, we can divide that by 60 to get the amount pumped per minute (because there are 60 minutes in an hour):

$((0.9375L)/(hour))((hour)/(60minutes))=0.015625\ liters\ per\ minute$

A 45 g piece of plasticine is placed in water and 30cmcube of water was displaced. Calculate the density of the plasticine in kg/mcube

Answers

Answer: 1500kg/m^3

Explanation: Assuming the cube was not large enough to float if it displaced 30cm^3 of water then it has a volume of 30cm^3. Density is just mass/volume so 45g/30cm^3 = 1.5g/cm^3. To convert this to kg/m we need to multiply by the conversion factors of the units. 1.5g/cm^3 • 1kg/1000g • 1,000,000cm^3/1m^3 = 1500kg/m^3.

How do the final images of transmission and scanning electron microscopy differ

Answers

The results of transmission and scanning electron microscopy differ in a number of ways: Resolution, contrast, depth of field, image appearance.

Resolution: resolution of transmission electron microscopy (TEM) is greater than that of scanning electron microscopy (SEM). As a result, TEM can produce more detailed images of the sample.

Contrast: The way electrons interact with the sample creates contrast in TEM images. The contrast in SEM images is caused by the way electrons are scattered by the sample.

Depth of field: In TEM images, the depth of field is very shallow. This means that at any given time, only a small section of the sample is in focus. SEM photos have a significantly higher depth of field.

Image appearance: TEM images are often displayed as two-dimensional projections of the sample. SEM pictures are typically three-dimensional representations of the material.

Learn more about microscopy, here:

brainly.com/question/30371453

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The most important differences between a transmission electron microscope and a scanning electron microscope are: Rather than the broad static beam used in TEM, the SEM beam is focused to a fine point and scans line by line over the sample surface in a rectangular raster pattern

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Manuel is performing a scientific investigation to determine whether fertilizer A or fertilizer B is more effective at increasing the growth rate of tomato plants. Manuel measures and separates 30 tomato plants into two equal groups that are planted in identical environments. He gives one group fertilizer A, and gives the other group the same amount of fertilizer B. During the first week of the investigation, he gives the tomato plants in both groups the same amount of water. During the second week, however, he forgets to water the tomato plants being given fertilizer B, but still provides water for the tomato plants being given fertilizer A. Two weeks after planting, Manuel measures the tomato plants and discovers that the tomato plants given fertilizer A have grown much more rapidly than the tomato plants being given fertilizer B. Manuel's resultsA. are not valid because one of the variables was not controlled during week 2. B. are valid because he controlled all of the variables in week 1. C. are valid because he designed his experiment correctly. D. are not valid because he should not have grown the plants in identical environments.