Even before the Structure of DNA was solved, studies indicated that the genetic material must have the following propties

Answer:

Hydrogen

Explanation:

Answer:

B

Explanation:

Processes of recombinant DNA technology involve isolation of DNA of the desired DNA fragment. In order to cut the DNA with restriction enzymes, it needs to be in pure form, free from other macromolecules. The DNA is enclosed within the membranes, we have to break the cell open to release DNA along with other macromolecules such as RNA, proteins, polysaccharides, and also lipids. This can be achieved by treating the bacterial cells/plant or animal tissue with enzymes such as lysozyme (bacteria), cellulase (plant cells), chitinase (fungus). The RNA can be removed by treatment with ribonuclease whereas proteins can be removed by treatment with protease.

Answer:

artificial selection

Explanation:

hope this helps

How much time do you have, this may take at least 30 minutes?

When organisms die, their bodies decompose bringing the nitrogen into soil on land or into ocean water. Bacteria alter the nitrogen into a form that plants are able to use :D

Answer: Consumers eat plants or other animals to get their nitrogen.

Answer:

HERBACEOUS PLANTS• Support is provided by the turgidity of parenchyma & collenchyma cells & xylem tissues. Parenchyma cells are filled with water  turgid• Collenchyma cells have unevenly thickened cellulose walls which provide support in stem & the midrib of the leaves.

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Answer:

A Genesis rock is pale in color and tends to be white to tan, leaning more toward cream. Often times it is dirty so it looks more of a tan to a light brown color. Other than that, it looks like an average rock.

Explanation:

Answer:

When at rest, most blood flows to other organs. But during exercise, most blood flows to the working muscles.

Answer:

1. Some fish like stargazer fish hide in rocks and sand to catch prey; some paralyze other fishes or some other ocean animal for safety and food, some like remora fish attach to larger fishes like sharks for protection and food.

2. Some desert animals like kangaroo rats can survive their whole lives without drinking water as they obtain all the moisture they need from the food in their diets.

3. Emperor penguins found in Antarctica form large, ever-moving huddles that allow them to share body warmth, and shelters them from the cold wind.

4. The sloth, an animal found in treetops uses camouflage and moves very slowly to make it difficult for predators to spot.

Explanation:

Adaptation refers to characteristics that help an organismmto be better suited for survival in their environment. Some adaptations may be physical such as the possession of limbs for movement by some animals, physiological such as production of toxins by some plants to avoid being eaten, or behavioural such as building a nest by birds

1. Fishes are animals that live in the ocean. Behavioural adaptations are the way different fish act to survive. Some fish like stargazer fish hide in rocks and sand to catch prey, some paralyze other fishes or some other ocean animal for safety and food, some fish like remora attach to larger fishes like sharks for protection and food.

2. Animals from the desert adapt to the hot desert environment by only coming out at night while hiding in burrows during the day. Some desert animals like kangaroo rats can survive their whole lives without drinking water as they obtain all the moisture they need from the food in their diets.

3. Antarctica is found in the world's coldest region, the South pole. Animals found in this region show various adaptations in order to survive the extreme cold conditions. Antarctic animals have unique behavioural adaptations that help them survive the harsh winter. Emperor penguins found in Antarctica form large, ever-moving huddles that allow them to share body warmth, and shelters them from the cold wind.

4. The rainforests are known for plenty of rainfall, abundance of animal and plant life. Due to these unique characteristics of the rainforests, animals have learnt to survive due to the competition for food and abundance of predators. The sloth, an animal found in treetops uses camouflage and moves very slowly to make it difficult for predators to spot.

Photosynthesis is a process by which plants take carbon dioxide, water, and sunlight from the atmosphere and release oxygen into the air. This results into decreasing the temperature of atmosphere and maintain concentration of gases.

Plants consume carbon dioxide, which is a greenhouse gas through the process of photosynthesis. This process involves reduction of carbon dioxide in the atmosphere which has an indirect cooling effect on the atmosphere. Plants cool the atmosphere as they release water vapor when they get hot, by a process which is similar to sweating.

About 70% of the oxygen in the atmosphere which we breathe comes from the photosynthesis of plants and algae in the ocean. Atmospheric oxygen from photosynthesis also maintains the ozone layer, which protects living organisms from harmful ultraviolet (UV) radiations which comes from the Sun.

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Answer:

hope this helps you out good luck

Answer:

the three main ones that i could find is

Solid

Liquid

Gaseous

solid because you can freeze it.

liquid because thats its natural form

and gaseous because you can steam it.

Answer: The temperature of the rainforest does not experience a drastic fall as in the case of the desert.

Explanation:

In the desert the average daytime temperature remains 100°F and that of the rainforest is 85°F. But average monthly temperatures are lower in the case of desert as compared to the rainforest although the vegetation cover is higher in rainforest as compared to desert so humidity is also more. During night in desert temperature drops to an average of 25°F whereas in rainforest during night temperature level does not drop much it drops to only 71°F. Therefore, the average monthly temperature on desert is lower than rainforest.

Answer:El 35% es de America del Norte

Explanation:

Answer:

135%

Explanation:

Given

Europe =  35%

Asia = 10%

Australia* = 20%

North America = ?

To find

Europe + Asia + Australia =

35% + 10% + 20% = 65%

Then the total subtracted from the given

200 - 65 = 135

Therefore,

North America = 135%

Confirm

To make sure that is the correct answer, add it all together.

35 + 10 + 20 + 135 = 200

Which means it is correct.

Answer:

I believe C,

Explanation:

The geocentric model of the universe maintained that the Earth was at the center of everything in the solar system. In it, the Sun and planets orbited around our planet. Many odd and elaborate adaptations were required to make this model agree with observations. This problem increased, as our our observations got more accurate.

The geocentric model was superseded by the heliocentric model, in which the planets all orbited the Sun. The Heliocentric model was eventually able to show that the positions of the planets over time were much more convincingly, and simply portrayed by it, than by the former model.

Apologizes if I'm wrong/

Answer: It is c because the person who made it or thought of it said that the earth is at center of the cosmos or the universe.

Explanation:

Answer:

The answer is C

Explanation: It seems the most reasonable

I took the test and got it right

If I am wrong please correct me

Have a great day!

The only statement which describes how jellyfish have a different adaptation to moving in the ocean than sharks and dolphins is:

Jellyfish fill the top part of their body with water and squeeze the water out to move.

This is the ability of an organism to successfully adapt and survive in a particular environment.

Within the context of this medium, jellyfish bodies are:

So therefore, jellyfish fill the top part of their body with water and squeeze the water out to move.

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Answer:

D.Para la mayoría de los ecosistemas la energía proviene de la luz

Explanation:

Los ecosistemas requieren de un suministro constante de energía para poder sustentar la vida. A excepción de ecosistemas basados en fuentes hidrotermales, en general este aporte energético proviene del sol que suministra energía lumínica la cual es convertida por los organismos productores (por ej., plantas y algas) en compuestos orgánicos. Los productores representan la fuente de energía y alimento de consumidores primarios (por ejemplo, herbívoros), los cuales a su vez sirven de sustento para consumidores secundarios (por ej., carnívoros), estos suministran de alimento a los consumidores terciarios y así sucesivamente. Finalmente, los descomponedores son aquellos microorganismos que se alimentan de los restos orgánicos obtenidos a partir de productores y consumidores.

Answer:

Respiratory system.

Explanation:

This entire system is based on air and gases. By "gas exchange," this is referencing how you breath in oxygen and, in turn, you breath out carbon dioxide.

Hope this helped!

Source(s) used: N/A

Answer:

D) All of the above

Answer:

D. all of the above

because all of those options are maintaining the basic living needs so to speak which is what homeostasis is

Explanation:

brainliest pls

Answer:

QUESTION:

amino acids come from which type of organic molecule?

ANSWER:

Proteins

Proteins are polymers made up of nitrogen-containing monomers called amino acids. An amino acid is a molecule composed of an amino group and a carboxyl group, together with a variable side chain.

Explanation:

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Answer:

PROTIENS............... i think.

Explanation:

Answer:

C. greater biodiversity

Explanation:

Biodiversity refers to the variation in the kind of species in an area/ecosystem. In other words, biodiversity or biological diversity is how life differs from one another. An increase in biodiversity is of great ecological importance.

One of this importance is that; it leads to the likelihood that that there are successful traits in an ecosystem that will allow organisms to survive and reproduce in changing conditions. This means, in a nutshell, that it increases the survival chance of species in adverse conditions via the possession of variant traits or characteristics.

Answer:

[tex] \infty \infty [/tex]

Answer:

Tuber spp, matsutake, Tricholoma spp

Explanation:

Answer:

nerve cells

Explanation:

Answer:

The sister chromosome looks like it fails to completely split, so that shows the daughter chromosome not having either of the chromosomes  

Explanation:

Answer:

Probabbly about 1,000 miles inland of about thr florida georgia line so that the storm surges dont knock it out but they still can see the storm to warn the people in time.

Explanation:

Answer:

The map shows that Florida has high hurricane activity, so the government should build the new hurricane monitoring station in Florida.

Explanation:

Answer:

a) price of an exercise book = #200

b) #400

Explanation:

Let x represent the price of the book

Let y represent the price of the exercise book

- According to this question, the price of the book is thrice that of an exercise book i.e. x = 3y

- Also, the question states that if a student spend #9600 on book and #8000 on exercise book, he has 56 items altogether. This means that to get how many books and exercise books he bought, we divide the price of book and exercise book he bought by the price of each book (x) and exercise book (y) respectively. Mathematically, this means:

- Student bought 9600/x books

- Student bought 8000/y exercise books

So, 9600/x books + 8000/y exercise books = 56 item

9600/x + 8000/y = 56

Since x = 3y

We can say;

9600/3y + 8000/y = 56

Find the L.C.M of 3y and y = 3y and solve using fraction method (see attachment).

9600 + 24000/3y = 56

33600/3y = 56

Cross multiply

33600 = 56 × 3y

33600 = 168y

Divide both sides by 168

33600/168 = 168y/168

200 = y

y = 200

Since, x = 3y

x = 3 × 200

x = 600

Therefore, the price of book (x) and exercise book (y) are #600 and #200 respectively.

b) The difference between the price of a book and an exercise book i.e. x - y

= #600 - #200

= #400

Answer:

When the health of cells in your lungs will bad then the lungs will not able to perform it's function which is Respiration, and it will cause lack of oxygen in our body and after this , it will affect the health of the rest of your body