BIOLOGY HIGH SCHOOL

3' GCTTAGTCCG 5' Which of the following nucleotide base sequences complements the section of DNA modeled above?a. 3' TAGGCTGAAT 5'
b. 3' CGAATCAGGC 5'
c. 3' CGTTAACGAG 5'
d. 3' GCTTAAGTCA 5'

Answers

Answer 1

Answer: 5' CGGACTAAGC 3' It's B

Answer 2

Answer:

b. 3' CGAATCAGGC 5'

Should be the answer

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Which part of the water cycle affects humidity by increasingwater vapor in the air?

HELPPP MEEE PLSSSS

Answers

The answer is
Evaporation

What is a limitation of using electron microscopes to view specimens? (2 points)

Answers

Answer:

The electron microscope uses electrons to form images for this reason does not allow to observe living cells because they need to work in a high vacuum atmosphere, the samples require preparation through a long fixation process, which means that it is not possible to observe living cells. To observe a cell with this microscope, dead cells must be observed, after being fixed and stained with heavy metal ions.

In these microscopes it is not possible to observe the cells carrying out their normal behaviors (for example, migrating or dividing) under the microscope

The correct answer is C. You cannot view live specimens because the necessary preparation kills cells.

The answer is pretty self-explanatory. Unlike it, regular microscopes can view living creatures such as bacteria or similar.

Scientific models must be able to generate ___________.

Answers

Scientific models must be able to generate PREDICTIONS.

Scientific models refers to frameworks, which are used to elucidate and predict the behavior of an object or a system. Scientists usually use models to carry out research and to explain the results of their research. A good and effective scientific model should be able to make accurate predictions.

scentific modela must be able to generate predictions

If I give the lion 2kg of beef, how many kg of protein is he getting from that *beef?
O 12kg
O 1.2kg
120kg

Answers

Answer:

Explanation:

The amount of protein a lion gets from 2kg of beef depends on the protein content of the beef. The protein content of beef can vary, but on average, it is around 20%. To calculate the amount of protein in 2kg of beef, you can multiply the weight of the beef by the protein content:

2kg of beef x 20% protein = 0.4kg of protein

So, the lion would be getting 0.4kg of protein from 2kg of beef.

Remember, the protein content can vary, so it's important to check the specific protein content of the beef you are considering.

Why are leaves green?

Answers

Because of the natural process of photosynthesis that always begins by absorbing light from the sun through proteins. And these reaction centres contain green chlorophyll pigments.

leaves appear green because the photosynthetic pigment chlorophyll is present in the leaves .. when sun light or any other light falls on leaves ,this chlorophyll absorbs all the other colours of light and only reflect green ..so our eye can only detect this green colour and it seems that leaves or chlorophyll is green but actually the matter is with absorption spectrum..
amazing fact :
if you fall red light on grass at night ,they will appear dark because they wont have any green light to reflect and they will absorb red light ..so our eye cant detect any colour :)

Describe how an enzyme’s structure affects its function

Answers

adenine,thyamine,cytocine,guanine

Final answer:

An enzyme's structure determines its function, stability, and activity.

Explanation:

An enzyme's structure directly affects its function. Enzymes are proteins made up of chains of amino acids. The specific sequence and arrangement of these amino acids determine the three-dimensional shape of the enzyme, which in turn determines its function. For example, the active site of an enzyme is a small pocket or crevice that allows the enzyme to bind to its substrate and carry out a specific chemical reaction.

The structural characteristics of an enzyme also affect its stability and activity. Changes in temperature, pH, or salinity can alter the shape of the enzyme, rendering it inactive or less efficient. Additionally, certain environmental factors may denature the enzyme, causing it to lose its shape and functionality permanently.