Biology College

In the figure, X is pointing to a building block of DNA. Which of these correctly labels X?

A. Amino acid
B. Nucleotide
C. Polysaccharide
D. Pyrimidine

In The Figure, X Is Pointing To A Building Block Of DNA. Which Of These Correctly Labels X?A. Amino AcidB.

Answers

Answer 1

Answer:

Nucleotide

Explanation:

I took the test and it was right.

Answer 2

The name of the building block of DNA that is depicted by X in the attached image is nucleotides.

DNA:

DNA or deoxyribonucleic acid is a biological molecule that stores genetic information in living cells.

DNA molecule is a biological polymer and hence, is made up of monomers called nucleotides. Nucleotide is the subunit of a DNA molecule.

Nucleotide is made up of three components namely: nitrogenous bases, phosphate group and pentose sugar.

In the image attached to this question, X is used to represent the building block of DNA, hence, it is a nucleotide.

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Related Questions

Explain how fossil fuels found in the Earth's crust are ultimately the result of biological processes.

Answers

Answer:

Fossil fuels are formed when organic matter such as the remains of animals and plants are buried and sequestered deep underground. The energy stored in these once-living things, as well as the process of being buried, causes the organic material to undergo a series of chemical transformations.

Answer:

Fossil fuels are formed when organic matter such as the remains of animals and plants are buried and sequestered deep underground. The energy stored in these once-living things, as well as the process of being buried, causes the organic material to undergo a series of chemical transformations.

Explanation:

How do your interactions with nonliving systems affect your environment?​

Answers

Answer:

Some examples of important nonliving things in an ecosystem are sunlight, temperature, water, air, wind, rocks, and soil. Living things grow, change, produce waste, reproduce, and die. These living things interact with the nonliving things around them such as sunlight, temperature, water, and soil.

Explanation:

Nonliving factors determine what living things can be supported in an ecosystem. The living creatures in a habitat affect the nonliving elements within the community. For example, plants can affect soil chemistry or certain algae can influence water chemistry.

There are three semicircular canals per ear.
True
O False
Qui

Answers

The answer to this question is true

A dihybrid cross experiment is carried out in pea plants. The traits being observed are flower color and stem length. In the F2 generation, 81 plants have purple flowers and long stems, 27 plants have purple flowers and short stems, 27 plants have white flowers and long stems, and 3 plants have white flowers and short stems.

Which traits are recessive?

A.purple flowers, long stem
B.purple flowers, short stem
C.white flowers, short stem
D.white flowers, long stem

Answers

C white flowers and short stem

Answer:

c

just took test

Explanation:

white flowers, short stem

Who is considered to have discovered the electron?

Answers

Answer:

J.J. Thompson

Explanation:

Electron was discovered by J. J. Thomson in 1897 when he was studying the properties of cathode ray.

Answer:

J.J Thomson

Explanation:

NEXT QUESTION.
when the moon is between the earth and the sun, what moon phase will this be??
a. full moon.
b. new moon.
c. first quarter.
d. last quarter.

Answers

Answer:

New Moon

Explanation:

The new moon phase occurs when the moon is between the Sun and the Earth.

What are all the blood types

Answers

Answer:

– A, B, AB and O

Explanation:

What do you think humans should do in order to minimize the harmful effects of climate change? Do you think it is likely that we will take the necessary actions you describe? Why or why not?

Answers

Answer:

There are actually many things we humans can do to help save our planet.

Explanation:

Avoid the use of electrical appliances

Ride bicycles instead of cars

And above all I would suggest we plant lots and lots of trees that could be a good help because trees consumes the bad gas and release the good gases into our atmosphere which does not burn the ozone layer and climate change won't be a national issue.

First of all, humans must demand and call out large fossil-fuel/oil companies to transition into the renewable energy industries. Fossil-fuels account for over 75% of the world’s greenhouse-gas (GHG) emissions, and unless rapid action is taken, the wildfires will continue to burn, the ice caps will continue to melt, and more and more species will become extinct. If awareness is spread, and worldwide politicians de-politicize this issue, humanity will take action. However, if we, as a society, continue as we do—as if there is no problem at hand—humanity will take action when it is too late. This is largely attributed that most people do not welcome drastic change, and wish for life to remain as normal. Some also do not welcome the scientific findings, as it provides a harrowing, bleak prediction if little change is made. Overall, humanity must act swiftly and united on the issue to ensure the wellbeing of our posterity.

(please mark as Brainliest answer! :-))

Identify the cellular structures where photosynthesis occurs.

Answers

Answer:

Chloroplasts

Explanation:

Photosynthesis occurs in the chloroplast, an organelle specific to plant cells. The light reactions of photosynthesis occur in the thylakoid membranes of the chloroplast.

consider the endosymbiont theory and the fact that chloroplasts contain dna molecules. given that chloroplast DNA has genes,

Answers

Answer/Explanation:

The endosymbiotic theory is the idea that eukaryotic cells evolved from the fusion of two prokaryotic cells that formed a symbiotic relationship, with one living inside the other.

An endosymbiont is one organism that lives inside another one.

The existence of mitochondria and chloroplasts, which contain their own DNA and ribosomes, supports this theory. Mitochondria are chloroplasts were once free-living organisms,  they were prokaryotes that ended up inside of other cells.

Mitochondria and chloroplasts have genes that are very similar to the genes of prokaryotes. Their membranes look like the prokaryotic cell membrane, and they divide  in similar ways.

Help! I’ll mark you brainly!

Answers

Answer:

its a powerhouse i just got out of my mouth XD

which ligament connects the shaft of the metatarsals

Answers

Answer:

plantar metatarsophalangeal ligament

Explanation:

The plantar metatarsophalangeal ligament attaches proximally from the head of the metatarsal to the base of the phalanx distally. The ligament extends plantarly from the medial tubercle to the lateral tubercle along the plantar surface of the joint.

The ligament that connects the shaft of the metatarsals is :

-Plantar metatarsophalangeal ligament

Metatarsals

The ligament that connects the shaft of the metatarsals is the plantar metatarsophalangeal ligament.

The plantar metatarsophalangeal tendon connects proximally from the head of the metatarsal to the base of the phalanx distally.

The tendon amplifies planarly from the average tubercle to the sidelong tubercle along the plantar surface of the joint.

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help asap plsssssssssssssssssssssss
You discovered a new species. Describe it using the 5 senses and give it a name

Answers

this is a question that you would have to answer

for example: i found a small and colorless bear looking animal(sight). When i touched it was fuzzy and soft(touch). It smelled like dirt and lavender(smell). The creature was sleeping and it was breathing slowly(hearing). I took one of its hair’s and it was like human hair(taste)

BUT REMEMBER since it’s a species it could be an animal or human or a plant.

hopefully I could help!!

50 points: write 3 paragraphs on the difference of asexual and sexual reproduction and why is asexual better

Answers

Answer:

When an organism makes more of itself without the exchang of genetic information with another organism through sex, the reproduction is asexual.

while

In sexual reproduction, the exchange of dna and other genetic material is required as it involves two separate organisms.

Finally

Asexual is better in terms of time, less energy and only one organism (the parent cell) is needed for the process.

True or false: The offspring of animals who reproduce asexually can be considered identical clones of their parent.

Answers

Answer:

I'm not sure but I think it's

Explanation:

FALSE

I believe the answer is False,but I’m not completely sure!

Which of the following hormones can be taken orally because they are lipid-soluble and can diffuse across the digestive system wall?

Check All That Apply

Prednisone
Testosterone
Antidiuretic hormone
Insulin
Thyroid hormone
Cortisone

Answers

YUMP OKAY INSULIN THATS RIGHT YUP

The hormones that can be taken orally because they are lipid-soluble and diffuse across the digestive system wall include Prednisone, Testosterone, Thyroid hormone and Cortisone.

Steroid hormones are liposoluble hormones that can translocate through cell membranes.

Prednisone is a synthetic hormone similar to cortisone.

Cortisone is a corticosteroid hormone secreted by the adrenal glands.

Thyroid hormones are liposoluble hormones secreted by the thyroid gland.

Testosterone is a steroid hormone produced by the testicles in males and by the ovaries in females.

In conclusion, the hormones that can be taken orally because they are lipid-soluble and diffuse across the digestive system wall include Prednisone, Testosterone, Thyroid hormone and Cortisone.

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What the things aid in the movement of the lymph?​

Answers

Answer: lymphatic vessels

Explanation:

Like veins, the lymphatic vessels, which are known as lymphangions, have one-way valves to prevent any backward flow

9C. The diagram below shows an enzyme-catalyzed reaction. How do
enzymes speed up biochemical reactions? *
Carbon dioxide
Water
Enzyme
Substrates
(carbonic
bind to
anhydrose
enzyme
-Active site
Carbonic
acid
Enzyme-
substrate
complex
Products
are released
Substrates
are converted
into products
They lower the activation energy of the reaction
They increase the number of available reactant particles
They absorb energy from the products
They provide energy to the reactants

Answers

Answer:

They lower the activation energy of the reaction

Explanation:

Enzymes are proteinous biochemical molecules that serve as catalyst in living systems. They speed up the rate of biochemical reactions by lowering the activation energy of the reaction they are involved in.

As this question describes, enzymes possess an active site, which the substrate binds to yield products. The enzymes make the reaction faster by reducing the activation energy of the reaction, which is the energy needed to start a reaction.

21. What is ATP made from?
a. adenosine + high energy electrons
b. ADP + phosphate
C. AMP + ADP
d. the conversion of guanine to adenosine

Answers

Answer b
I think I’m not sure


Explanation:

Write any 2 control measures of Virus.​

Answers

Answer:

Personal hygiene, environmental hygiene

Explanation:

Always take care of the body to be clean often to avoid the rate of virus sticking on and in the body through diffusion, and often clean the environment to reduce the spread of virus

2. Which of the following statements is best supported by the data?
(A) The enzyme demonstrates more activity at pH 6.0 than at pH 5.0.
(B) The enzyme has no activity at pH 6.0.
(C) A pH of 5.0 is the optimum for the activity of the enzyme.
(D) The enzymatic activity is independent of pH.

Answers

Answer:

B and D edge.............

Calculate the rate of photosynthesis (mm/hr) for Elodea if when measuring net photosynthesis, the water level moved up 3 mm from the initial level in 20 min, and when measuring cellular respiration it took 15 minutes for the water level to move down 1 mm.

Answers

Answer:

The rate of photosynthesis is 13 mm/hr

Explanation:

The rate of net photosynthesis is given by;

rate of net photosynthesis = 3 mm / 20 min = 1.5 mm/ 10 min

The rate of  cellular respiration is given by;

rate of cellular respiration = 1 mm / 15 min = 0.667 mm / 10 min

The rate of photosynthesis is given by;

rate of photosynthesis = rate of net photosynthesis + rate of cellular respiration

rate of photosynthesis = 1.5 mm/ 10 min + 0.667 mm / 10 min

rate of photosynthesis =2.167 mm/ 10 min

[tex]rate \ of \ photosynthesis \ in \ mm/hr = \frac{2.167 \ mm}{10 \ min} *\frac{60 \ min}{1 \ hr} = 13 \ mm/hr[/tex]

Therefore, the rate of photosynthesis is 13 mm/hr

According to blood flow patterns, the basal ganglia and cerebellum appear to be where which type of memory is stored

Answers

Answer:

The options are

A. Procedural

B. Eidetic

C. Skill

D. Declarative

The answer is D. Declarative

According to blood flow patterns, the basal ganglia and cerebellum appear to be in and stored in the type of memory called Declarative

CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION THANK YOU!!

Answers

C.
They live in an unstable environment





Dating the fossil at the site it was found, without benefit of laboratory equipment, would BEST be described as
A) carbon dating.
B) imprint dating.
C) relative dating.
D) half-life dating.

Answers

Answer:

Answer c) Relative Dating.

Which stage of the cell cycle results in two identical cells?
mitosis
cytokinesis
interphase
metaphase

Answers

Answer:

Cytokinesis

Explanation:

The stage in mitosis in which the cell divides. Took it on E2020

Answer:

B.Cytokinesis

Explanation:

The fungus Melampsora lini causes a disease known as flax rust. Different strains of M. lini cause varying degrees of the rust disease. Conversely, different strains of flax are resistant or sensitive to the various varieties of rust. The Bombay variety of flax is resistant to M. lini-strain 22 but sensitive to M. lini-strain 24. A strain of flax called 770B is just the opposite; it is resistant to strain 24 but sensitive to strain 22. When 770B was crossed to Bombay, all F1 individuals were resistant to both strain 22 and strain 24. When F1 individuals were self-fertilized, the following data were obtained:

43 resistant to strain 22 but sensitive to strain 24
9 sensitive to strain 22 and strain 24
32 sensitive to strain 22 but resistant to strain 24
110 resistant to strain 22 and strain 24

Required:
Explain the inheritance pattern for flax resistance and sensitivity to M. lini strains.

Answers

Answer:

Explanation:

Using the Mendelian approach to solve this question, we will understand that the mendelian approach has a pattern for inherited traits.

From the data set given, the total number of the population is:

43+9+32+110 = 194

However, their ratio are being calculated as follows:

43/194 = 0.22

9/194 = 0.05

32/194 = 0.16

110/194 = 0.57

After comparison with the Mendelian's approach, we realize that these results seem to be similar to the 9:3:3:1 ratio.

i.e.  

3/16 = 0.18

1/16 = 0.06

3/16 = 0.18

9/16 = 0.56

The inheritance pattern obviously dictates that the flax experiment proceeds in the pattern found in the Mendelian's Approach and the resistance of the two different strains were arbitrated by two traits.

Niagara Falls is a big waterfall on the border of Canada and the United States. Each year the edge of the waterfall moves back a couple of centimeters because the water is breaking apart the rocks on the edge. What is this an example of? Why?

Answers

This is an example of erosion. Erosion is when something is “washed” away (or eroded) over time (usually by water). The rocks are breaking apart because the rushing water is slowly eroding the edge a couple of centimeters every year.

Emic and etic are referred to as

A. Homonyms

B. Types of material culture

C. Perspectives

D. Populations

Answers

Answer:

A

Explanation:

What is one way to add oxygen to the atmosphere?

Answers

Answer:

Plants use sunlight and carbon dioxide to produce oxygen through the process of photosynthesis.

Explanation:

They are the main creators of the oxygen in the atmosphere.

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