Answer:
Nitrogenous bases contain the genetic information, their amount is variable among different species, and the arrangement of these bases is also variable among different species
Explanation:
Both Watson-Crick and Pauling's DNA models considered that DNA nitrogenous bases (i.e., Adenine, Cytosine, Thymine and Guanine) contain the genetic information that determines the characteristics of living organisms. Moreover, both DNA models also considered that nitrogenous base composition varies between species, as well as the arrangement of these bases in the DNA chain also varies between species. Based on these features, Linus Pauling considered that a model where nitrogenous bases would be arranged on the outside of the DNA molecule would be easier for the DNA molecule to be replicated, transcribed, or repaired. Although incorrect, Pauling's DNA triple helix model was fundamental to develop the helical (double-stranded) structure of DNA, which was finally discovered by Watson and Crick in 1953.
Explain the difference between a data table and a graph.
When do you use a data table?
When do you use a graph?
HELP ME!!!
Answer:
A data table is a visual instrument comprised of labeled columns and rows, while a graph is a diagram showing the relation between variable quantities, typically of two variables, each measured along one of a pair of axes at right angles.
They are used for different purposes, depending on the problem
A data table is a visual instrument comprised of labeled columns and rows, while a graph is a diagram showing the relation between variable quantities, typically of two variables, each measured along one of a pair of axes at right angles.
You've been experiencing acid indigestion lately, and you'd like a quick fix for the problem. You do a little research on the Internet and discover that your problem is caused by excess stomach acid. In the pharmacy aisles, however, you're having a little trouble deciding what to purchase to address the problem. At the pharmacy counter, the clerk recommends that you purchase PEPCID AC or Alka-Seltzer tablets. You want to design an experiment to compare the effectiveness of Pepcid AC tablets and Alka-Seltzer tablets. Which of the following facts would be least likely to complicate your experiment and the analysis of your results?
a. PEPCIO AC and Alka-Seitzer tablets contain different ingredients.
b. PEPCID AC and Alka Seltzer tablets contain different concentrations of the antacid drug.
c. The recommended dosage for PEPCID AC and Alka-Seltzer tablets is different.
d. PEPCIO AC and Alka-Seltzer tablets are sold in different countries throughout the world,
Answer:
d. PEPCIO AC and Alka-Seltzer tablets are sold in different countries throughout the world.
Explanation:
When there is excess acid in the stomach then Alka-Seltzer tablet can be used. The Ph level of these tablets is higher than 7 because acidic reaction need to be stopped with an introduction of base.
Select all that apply.
Tumors can result from:
1) Mutations in tumor suppressor genes
2) Mutations in proto-oncogenes
3) Too many cells in GO
4) Too little cell death
5) Too much cell division
Every cell in your body was produced through successive rounds of mitosis, starting from the zygote.
a. True
b. False
Answer:
I think that the correct answer is True
a coyote captures kills and eats a rabbit. what type of symbiotic relationship is this
Answer option
Predator-prey relationship
Mutually beneficial relationship
Competitive relationship
Parasitic relationship
which of the following is an example of a complementary base pair in DNA?
a. A-G
b. T-C
c. A-U
d. C-G
Answer: d. C-G
Explanation:
DNA or deoxyribonucleic acid is a structure which is common in every living organism. The two strands of the DNA are held together by base complementarity between the nitrogenous bases these bases are held by hydrogen bonding. Adenine always pairs with thymine by a triple hydrogen bonding and cytosine is always forms a pair with that of guanine by a double hydrogen bonding. So, in this given situation cytosine or C will show complementarity with that of guanine or G in a DNA structure helping in linking the two strands of DNA to form a single integrated double helical structure.
Answer: D.c-g
Explanation:
What is a population bottleneck?
Answer:
A population bottleneck or genetic bottleneck is a sharp reduction in the size of a population due to environmental events such as famines, earthquakes, floods, fires, disease, and droughts or human activities such as specicide and human population planning.
Explanation:
Explanation:
A population bottleneck or genetic bottleneck is a sharp reduction in the size of a population due to environmental events such as famines, earthquakes, floods, fires, disease, and droughts or human activities such as specicide and human population planning.follow me
Which of the following is not a
testable hypothesis that this data
could be used to support or
disprove?
F. Height is affected by child-
hood nutrition.
G. All females are taller than
males at age 12.
H. Being taller is always better
than being shorter.
I. All men who are married are
taller than their wives.
Which BEST describes acidified soils?
A. They are LESS likely to hold nutrients.
B. They are MOSTLY water-logged.
C. They have NO heavy metals.
D. They have MORE healthy decomposers.
What has changed in the world that has resulted in the drastic increase of carbon dioxide levels in the atmosphere?
Answer: On Earth, human activities are changing the natural greenhouse. Over the last century the burning of fossil fuels like coal and oil has increased the concentration of atmospheric carbon dioxide (CO2). This happens because the coal or oil burning process combines carbon with oxygen in the air to make CO2.
Explanation:
Describe how the EMG signal (a voltage) arises from muscle activity
Answer: The EMG signal is a biomedical signal that measures electrical currents generated in muscles during its contraction representing neuromuscular activities. The nervous system always controls the muscle activity (contraction/relaxation). ... EMG signal acquires noise while traveling through different tissues. EMG signals are recorded by placing electrodes close to the muscle groups. When the muscle is activated, the length of the muscle decreases and the muscle, skin and electrodes move with respect to one another. At that time, the electrodes will show some movement artifacts
Explanation:
EMG signals are recorded by positioning electrodes close to the muscle groups. It is the arrangement that helps in the monitoring of EMG signals from muscle activity.
What do you mean by EMG signals?EMG signals may be defined as a biomedical signal that estimates electrical currents provoked in muscles during their contraction illustrating neuromuscular activities.
When the muscle is stimulated for any mechanism, the length of the muscle declines, which leads to the muscle, skin, and electrodes moving with regard to one another.
The EMG signals always arise from the electrical activity of the muscle fibers which are stimulated during the time of contraction.
Therefore, EMG signals are recorded by positioning electrodes close to the muscle groups. It is the arrangement that helps in the monitoring of EMG signals from muscle activity.
To learn more about EMG signals, refer to the link:
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Do internet search enhance our knowledge in animal/fish raising?
Answer:
Yes it does because it helps us to be aware on the things that we should know on how to raise the animals with care,.
Explanation:
While mRNA strands are being created a sequence is sometimes miscopied. What will be the effect of this on the cell?
Group of answer choices
The damaged mRNA may cause cell death.
Translation may not take place.
Future transcription will not take place.
Ribosomes may be destroyed.
Answer:
If the sequence of mRNA is miscopied, it will change the sequence of amino acids of the protein. Consequently, the protein may become non-functional.
Explanation:
So the second one or the third one I'm not sure sorry <3
Answer:
Translation may not take place.
Explanation:
Hope this helps.
1.
Which has the greatest impact on the temperature of the Earth's atmosphere?
chemical runoff
sulfur dioxide
carbon dioxide
Ozone
Which of the following describes a way that protists differ from animals and plants? Group of answer choices
A.Different species of protists do not differ greatly from one another.
B.Protists are typically much larger than most plants and animals
C.Protists resemble neither plants nor animals.
D.Protists resemble neither plants nor animals.
Answer:
A. Different species of protists do not differ greatly from one another
List 3 inputs (things entering) for the leaf in Model 1.
Answer:
light energy,carbon dioxide, and water
Explanation:
Answer:
light energy,carbon dioxide , water
Mutation happens during which of the following processes?
D Protein synthesis
A DNA transcription
B DNA replication
CTranslation
Which of the following was a control variable in this experiment?
A Type of soil
B Amount of water
C Height of plants
Answer:
b
Explanation:
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The chemical properties of an element
are determined by its
A- atomic mass
B-proton number
C-electron arrangement
D- atomic size
Answer:
C. electron arrangment
Explanation:
Electrons are the subatomic particles that influence an element's reactivity since they are exchanged during reactions.
PLEASE HELP AND EXPLAIN (NO LINKS OR NO RANDOM ANSWERS FOR POINTS)
!!FOR PLANT SYSTEMS!!
Given the loss of farming jobs projected in the near future, distinguish at least two factors in a decision one might make to enter the field.
i cant process this lol no matter how much tiems read it
Answer:
this is the suggested answer
Explanation:
A correct answer will discuss two factors from among the following: one factor is despite the projected loss in farming jobs, these jobs are still essential and may still provide for a lucrative and successful career given that the median income level that is significantly higher than the national average. Another factor is the wide variety of careers in this general field, so the information on declining career outlook could be misleading, depending what specific career one is looking into. Another factor is the several training programs available to benefit those looking to enter this field, which can contribute to success.
Question 4 Help me please!!!!!!!!!!!!!!!!!
Answer:
B of course
Explanation:
Which area of the brain is most active when listening
Answer: Right inferior frontal gyrus was also activated for both reading and listening comprehension. The common areas of activation are shown in white in Figure 1. Listening comprehension showed large clusters of activation in bilateral (posterior and anterior) superior temporal and middle temporal gyri.
Explanation:
what grow downward into the soil to form roots
please answer fast
Answer:
Explanation:
The primary root, or radicle, is the first organ to appear when a seed germinates. It grows downward into the soil, anchoring the seedling. In gymnosperms and dicotyledons (angiosperms with two seed leaves), the radicle becomes a taproot
describe one similarity and one difference between fungi and plants
Explanation:
Both the plant and fungus kingdoms have some common characteristics. ... While both are eukaryotic and don't move, plants are autotrophic - making their own energy - and have cell walls made of cellulose, but fungi are heterotrophic - taking in food for energy - and have cell walls made of chitin.
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An energy pyramid is shown below.
tertiary
consumers
secondary
consumers
primary
consumers
producers
N
What does the energy pyramid demonstrate?
Answer:
tertiary consumers
tertiary consumers
tertiary consumer
tertiary consumer
How do tides affect the organisms living in intertidal zones?
A.
Only plants live in intertidal zones because the animals float away with the waves and never return.
B.
The mechanical forces of the waves keeps the organisms clean.
C.
The mechanical forces of the waves can dislodge the organisms from their habitat.
D.
No organisms live in intertidal zones due to the tumultuous environment.
hello people of brainly
Answer:
a scientist should observe the natural world without changing or destroying it
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In the following sentence, luster probably means
“for example, diamonds are a clear, very hard crystal with a shiny luster, while talc has a very soft texture and is a whitish gray color.”
A. dullness
B. hardness
C. transparent
D. shining by reflecting light
Answer:
D.
Explanation:
Luster means a gentle sheen or soft glow, especially that of a partly reflective surface. The sentence says "a shiny luster," and diamonds are shiny and reflective, so it is most likely D.
hope this helps! :)
Pls mark brainliest!A kitten embryo is growing inside the uterus of a cat. What is happening to the cells of the kitten embryo?
A) Mitosis, the cells are differentiating
B) Meiosis, the cells are differentiating
C) Meiosis, the genes are being shuffled around
D) Mitosis, genes are being shuffled around
Please answer and don't put fake answer I really need this right.
Answer:
A
Explanation:
the cells will start to split causing growth in the embryo