what are the two types of nucleotides

Answers

Answer 1
There are two groups of bases: Pyrimidines: Cytosine and Thymine each have a single six-member ring.
Answer 2
Thymine, cytosine, adenine, and guanine

Related Questions

What are hot spots caused by?
A. volcanoes
B. Divergent plate boundaries
C. Mantle plumes
D. Subduction Zones

Answers

they're caused by mantle plumes
The answer to your question would most definitely be C. Mantle Plumes

hope this helps, Brenthall! :-)

what would happen to a plant cell that suddenly lost its chloroplast

Answers

It would die or would be dependent on other cells to get food
It would not be able to photosynthesize or create sugars to grow

HELP Write a paragraph as if you are a particle of digested food that will be excreted as feces. Start in the large intestine and finish as the feces leaves the body.

Answers

at the large intestine, excess water is absorbed from the undigested food. finally, the undigested food waits in the rectum until it is passed put through the anus as faeces

When the DNA begin to coil and condense, the cell is in _____

Answers

The right answer is G2 phase, in order to prepare itself for the M phase.

Phase G2 is a short phase (3 to 4 hours) that starts as soon as replication is enabled; the cell is diploid.

SMC (Structural Maintenance of Chromosomes) Proteins: Condense chromatin = a kind of motor that causes the coil of chromatin.

Histones H1 (internucleosomal histones) are also involved in this condensation.

What allows Nancy to run without watching her feet and hit a baseball without focusing on the bat ?

Answers

Final answer:

Nancy's ability to run without watching her feet and hit a baseball without focusing on the bat is due to proprioception. It is a biological sense that allows perception of the location and movement of our body parts in space, enabling people to perform tasks without consciously focusing on them.

Explanation:

The ability of Nancy to perform these tasks without consciously focusing on them can be attributed to a concept in biology known as proprioception. Proprioception is the sense that lets us perceive the location, movement, and action of our bodies and its parts in space, even without looking at them. It's what allows us to do things like touch our nose with our eyes closed, run without watching our feet, or hit a baseball without focusing on the bat. When Nancy runs or swings a bat, her body is sending continuous feedback to her brain regarding the position and movement of her limbs and muscles. This feedback, interpreted by the brain, enables her to adjust her movements and perform the desired action even without consciously focusing on it.

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During the Cambrian explosion that began the Paleozoic era, the new many forms of life that evolved....

A.Lived on land
B.Were invertebrates that lived in the sea
C. Were vertebrates covered with scales or fur
D. Were single celled

Please Help Me!!

Answers

They were invertebrates that lived in the sea

Answer:

The answer is B

Explanation:

I got it right on the quiz

Hope it helps

How might a theory relate to a model

Answers

Theory relates to a model in science because it presents the possible paradigms and patterns of the said concept and fact. It explains and elaborates the phenomenon of why it happened, how it happened and the factors that are involved in the process. A theory is a possible explanation of certain occurrence. 

In addition, any time a scientific theory is challenged, it means it's not a good theory. And this statement is not valid. In theoretical models, they are revisited when there are further studies and discoveries found in a certain area where they can be remodeled and reintegrated instead of disregarding its credibility. Models, theories, and paradigms are not challenged but rather encouraged, they are supported in many studies since these theories and models were created in order for us to understand a certain phenomenon but it would likely help the scientific society to be updated in the new forms or spheres of improvement rather than discouragement.   

I need help please. (30 points

Answers

The mass of the sample would be 90 grams

1.) What is the Scientific definition of a fruit?


2.) What is the term for the distributing of the seeds after they mature?


3.) Differentiate between mechanical dispersal and and agent dispersal.


Plz thanks (frist one branly)!!!!
God bless

Answers

1. the scientific definition of a fruit is a structure that bears a seed or seeds that develops from the ovary of a flowering plant
2. the term for distributing seeds after they mature is called dispersing
3. mechanical dispersal occurs when the ripened fruit opens and scatters seeds 

agent dispersal occurs when an animal feeds on fleshy fruits as some seeds pass through the digestive system, while some drop and scatter onto the ground.

hope this helped & god bless

Wetlands support a large number of animal species. Chemical weed killers are dumped into this wetland and the aquatic plants are killed. We should expect ___________________ to be affected by the death of the plants.\

Answers

Answer: all the animals in and around the wetlands

The correct answer for the blank is animals.

The producers are always the green plants and in case of wetlands the primary producers are the aquatic plants.

The aquatic plants present in the wetland are the producers of the ecosystem present in wetland.

If we will remove the producers from the ecosystem then, all the consumers(animals) will die.

whats the difference between a heterogeneous and homogeneous mixture

Answers

One of them can be separated but the other cannot

The terms h​eterogeneous and homogeneous refer to mixtures of materials in chemistry. The difference between heterogeneous and homogeneous mixtures is the degree at which the materials are mixed together and the uniformity of their composition.

homogeneous mixture is a mixture where the components that make up the mixture are uniformly distributed throughout the mixture. The composition of the mixture is the same throughout.

There is only one phase of matter observed in a homogeneous mixture.

You can't pick out components of a homogeneous mixture or use a simple mechanical means to separate them. You can't see individual chemicals or ingredients in this type of mixture. Only one phase of matter is present in a homogeneous mixture.

heterogeneous mixture is a mixture where the components of the mixture are not uniform or have localized regions with different properties. Different samples from the mixture are not identical to each other. There are always two or more phases in a heterogeneous mixture, where you can identify a region with properties that are distinct from those of another region, even if they are the same state of matter (e.g., liquid, solid).

Usually, it's possible to physically separate components of a heterogeneous mixture. For example, you can centrifuge (spin out) solid blood cells to separate them from the plasma of blood. You can remove ice cubes from soda. You can separate candies according to color.

The rungs or steps of DNA are made up of ____ which are attached to the sides or railings of DNA, which are made up of ___.

Answers

Answer: The steps are made of nitrogenous bases; deoxyribose sugars linked with phosphates.

Explanation: The rungs of the DNA are made of nitogenous bases (The nitrogenous bases are adenine (A), thymine (T), guanine (G) and cytosine (C) ) they are held together by weak hydrogen bonds.

The railings of the DNA are made of deoxyribose sugars which are alternating with phosphates. This part of the molecule is referred to as the "backbone".

Answer: The steps are made of nitrogenous bases; deoxyribose sugars linked with phosphates.

What is the smallest particle representing water?

A.Hydrogen Atom

B.Molecule

C.Diatomic Oxygen

D.Oxygen Atom

Answers

Answer:

b . molecule

Explanation:

The smallest particle of water is 'molecule'.

which stage of the scientific process enables a scientist to check the work of another scientist?

Answers

Answer:

Peer review

Explanation:

It provides veracity to the already drawn conclusion of the scientific investigation before a report is publicly published in scientific journals. Other scientists can replicate the experiment to see whether they lead to the same conclusions. This ensures that the information is reliable to be cited or even built upon by other scientists.

what kind of consumer is a grass carp

Answers

the grass carp is herbivorious 
Grass Carp eat a wide variety of aquatic vegetation.

Hope this helps

Explain what feeding behaviors shown make a food web a better choice for displaying this information than an energy pyramid

Answers

Because a food web shows just exactly what eats what rather than put them all into a category.

This reflects the relationship of organisms to each other in a habitat, rather than to a small segment like a food chain.

What is an Energy pyramid?

An ecological pyramid is defined as a graphical representation designed to show biomass or bio-productivity at each trophic level in a given ecosystem.

Energy pyramids only show the transfer of energy from one trophic level to another not the organisms and their food, so the biggest limitation of energy pyramids is that they are not applicable to food webs. They only apply to food chains.

Energy pyramids are conserved for only one range and restrict the feeding behavior to the source of energy of the organism which stated for food webs, they show a link between several organisms and a source of energy.

Thus, this reflects the relationship of organisms to each other in a habitat, rather than to a small segment like a food chain.

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What is scientific consensus

Answers

The collective judgment, position, and opinion of the community of scientists in a particular field of study. It is what most scientists in a particular field of study agree is true on a given question.

Answer:

In science a theory is said to be valid when there is a true scientific consensus, it cannot be judged only based on intuition, faith or authoritarianism of any kind.

This consensus is created in the scientific community based on its empirical, experimental and conceptual logic.

The scientific consensus accepts the veracity of theories from the repetition of tests under the same conditions and theoretical assumptions.

Non Example of phospholipids

Answers

The structure of the phospholipid molecule generally consists of two hydrophobic fatty acid "tails" and a hydrophilic "head" consisting of a phosphate group.

Which organic molecule is part of an enzyme

Answers

Among the organic macro-molecules, enzymes belong in the category of proteins. Proteins are distinct from carbohydrates, nucleic acids and lipids in that a protein is made of amino acids.
Final answer:

An enzyme includes an organic molecule known as a coenzyme, which enhances the enzyme's function. Coenzymes are organic helper molecules that are typically derived from vitamins. Coenzymes and cofactors, such as metal ions, are essential for the optimal activity of enzymes.

Explanation:

The organic molecule that is part of an enzyme is known as a coenzyme. Coenzymes are organic helper molecules made up of carbon and hydrogen, and they play a critical role in the function and regulation of enzymes. They are often derived from dietary vitamins and participate in reactions without being changed themselves, essentially serving to increase enzyme efficacy, selectivity, and specificity. Enzymes may also require inorganic ions known as cofactors to function optimally. These inorganic ions, such as iron (Fe++) and magnesium (Mg++), help stabilize enzyme conformation. An example is the enzyme DNA polymerase, which requires a bound zinc ion (Zn++) as a cofactor to function properly.

Ramona and her family agree that what got Ramona through law school is what got her through obstacles all her life: her belief in her ability to succeed even when things are tough. Which part of the social cognitive theory addresses this view on Ramona’s successes in life?
A.
observational learning
B.
reciprocal determinism
C.
self-efficacy
D.
response tendency

Answers

Personally, I'd pick C. self-efficacy.
Self-efficacy refers to the confidence that a person has when it comes to their own ability and skills. So Ramona has always believed that she can succeed even when things are tough which is something that got her through both college and life in general.

Answer:

c

Explanation:

Identify one organism that is not extinct?

Answers

An example of an animal that is not extinct is a lion
that answer is basically most animals that you see today or like fungi or some kind of bacteria 

Which statement is true about a liquid but not a gas? Question 7 options:
A. It has more internal energy than the solid state.
B. It has close to a constant volume as pressure is applied to it.
C. It allows particle to move past each other relatively easily.
D. It will change shape and take the shape of its container.

Answers

the answer is D on usatestprep

The right option is; D. It will change shape and take the shape of its container.

Liquid is one of the states of matter and is composed of molecules that are held together by intermolecular bonds. Liquid has a fixed volume, but it does not have a fixed shape. It takes the shape of its container. The density of a liquid is influenced by pressure, and it has surface tension.

In terms of energy, what is the difference between glucose and ATP?

Answers

The primary source of energy for animals is carbohydrates, primarily glucose. For cells, which is ATP. ATP is produced in the mitochondria.
Glucose (C6 H12 O6) + Oxygen (6O2) ---> Carbon dioxide (CO2) + Water (H2O) + 38ATP molecules.

Glucose is a monosaccharide whereas ATP is energy carrying molecule.

Glucose is a monosaccharide which is made of six carbons while on the other hand, adenosine triphosphate (ATP) is energy carrying molecule which is formed from phosphate which releases energy that is used by the body for doing various activities.

Glucose is used by the mitochondria of the cell where it can be broken down in order to release energy in the form of ATP molecules that can be used by the cells for different activities.

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Suppose a shopping mall is built near a rabbit warren, leaving less land available for rabbits. How will this affect the environment’s carrying capacity?

Answers

Answer:

With the construction of a shopping center near the habitat of rabbits, there will be a significant decrease in the population because food resources and in general the ecological niche will be negatively influenced.

The carrying capacity in general is reduced because the maximum population size that the environment can support indefinitely in a given period is reduced as there is not enough availability of resources in the environment

The carrying capacity is a measure of the greatest or maximum amount of species that can be catered for given the amount of resources available in the environment. Hence, due to the reduction in space, the carrying capacity of the environment will decease.

The carrying capacity of an environment is directly proportional to the amount of resources available, which could support the survival and growth of the organisms.

The amount of land or living area is a factor which also determines the carrying capacity of an environment.

Due to the reduction in living area available to the rabbits as a result of the constructed mall, the carrying capacity will decrease as there won't be enough space to support the initial rabbit population any longer.

Therefore, the carrying capacity of the environment is reduced due to the limited land area available for the rabbits to occupy.

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primary and secondary air pollutants can coexist in the atmosphere
true or false

Answers

its true a im shure i hope help you lol have a good day
The answer is true, primary and secondary pollutants can coexist in the atmosphere. 

Which item is the best example of a wheel and axle?

A.
automobile engine

B.
door knob mechanism

C.
bicycle

D.
telescope

Answers

C. bicycle is your best answer

a bicycle has 2 wheels, and they are connected together through a frame and and has axles

hope this helps
bicycle because the tire provides power

The number of possible genetically different gametes for an organism equals 2N, where N is the number of pairs of chromosomes. If an organism has 5 pairs of chromosomes, how many different gametes can it produce?

Answers

The answer is 2^5 = 32
Each chromosome has 2 options during independent assortment, and there are 5 chromosomes. So this would be the answer.

Answer:

The answer is 2^5 = 32

Explanation:

have a nice day.

what organelle seperates the cell contents from the enviroment

Answers

It would be the cell membrane. It's the outer shell which separates the inside of a cell from the outside.

Carbon Dioxide and____________ are outputs of cellular respiration.
A. water
B. nucleic acids
C. energy
D. respiration

Answers

the answer is A water

What does it mean if a form of energy appears over the arrow in a chemical reaction?

Answers

The reactants and products are separated by a narrow. Chemical equations should contain information about the state properties.
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