A student builds a model of a DNA strand.
Which of these models of a DNA strand shows bases that are complementary to the ones on the student’s DNA model?

Just leave the number to tell me the answer so that way you don't have to type all the letters

Answer:

c

Explanation:

Answer:

d

Explanation:

burning of fossil fuels

Answer: steel nickel

Explanation:

Answer:

I think is C

Explanation:

A group of tissues performing a particular function in the body forms an "organ"

A group of organs that work together to maintain a stable internal environment and perform a particular function is called as "organ system".

Answer:

See the answer below

Explanation:

The amount of herbaceous plants in an abandoned farm field will keep decreasing with time and the amount of trees would be increasing instead due to successional forces.

Succession refers to the gradual change in the species structure of a community with time. Early successional species usually colonize new habitats and with time, they are replaced with late successional species until a relatively stable community, climax community, is established.

Herbaceous species on abandoned farmland represent early successional species and as time goes on, they will be replaced by mid to late successional species in the form of shrubs and trees until a relatively stable community is formed. Hence, herbs would be decreasing while trees would be increasing.

Answer:

depending variable

Explanation:

only thing changed in the experiment is uv light

Answer:

6) insertion               7) deletion             8) inversion      9) substitution

10) substitution        11) insertion            12) deletion      13) substitution

14) inversion            15) insertion            16) inversion       17) deletion                

18) insertion             19) Inversion           20) inversion

Explanation:

MARK AS BRAINLIEST

Thank you

Answer:

b

Explanation:

because me teacher just went over it

Answer:

No.

Explanation:

Some organelles are found only in some cell types.

No all cells dont  have ALL organelles

Explanation:

The chloroplasts mitochondria and etc. all make up the cell which are all organelles but the plant cell and animal cells are made up of different organelles

Answer:

?

Explanation:

Answer:

Endurance running

Sweating

Walking upright

Hearing tuned for speech

Great teeth

Answer:

A: Nucleus

B: Mitochondrion

C: Cell Wall

Due to the rise of Pollution, Global Warming, and Overfishing, it causes the Kelp forests to lessen in population. With pollution, it gets in the water, and causes the kelp to die out. With Global warming, the water gets warmer, causing the kelp to die out as well. And with overfishing, they catch fish that eat other fish that eat the kelp.

Answer:

substitution

Explanation:

Answer:✔ insertion

Explanation:

Answer:

There are rainforests in South and Central America, Africa, Oceania (the islands around Australia), and Asia. Tropical rainforests cover only about 7% of the Earth's surface.

Explanation:

largest rainforests are in the Amazon River Basin (South America), the Congo River Basin (western Africa), and throughout much of southeast Asia. Smaller rainforests are located in Central America, Madagascar, Australia and nearby islands, India, and other locations in the tropics.

Answer:

The location of fossils in rock layers provides evidence of Earth's past landscapes. It is hard to guess the age of rock. Scientists have to act like detectives, piecing together a mystery to determine how long ago rocks formed. Fossils found in a particular rock layer help scientists determine the age of the rock.

Explanation:

so anything besides of what I just said...

Hope this helps you, may i have brainliest please.

What we cannot learn from the fossils found in rock strata is: the diversity of organisms at a certain location or during a certain time period.

Rock strata (layers) that are found in various parts of the world are usually different from one another because they all comprises distinct Earth's geological history, which are referred to as fossils.

A fossil can be defined as the mineral impression or remains of both living and non-living organisms that are prehistoric in nature.

This ultimately implies that, fossils are ancient organisms such as plants and animals that were formed into rocks.

Some of the information that can be learnt from the fossils found in rock strata are:

Read more: https://brainly.com/question/22044539

Most animal and plant species we see in the fossil record are extinct, or no longer living. In fact, of all the species that ever lived, 98% are extinct. Animals and plants become extinct over time as a result of natural processes. Their habitat might change or a disease might wipe out a species.

The trend of extinction and difference in body parts in the complexity of life

over time is seen through the fossil record

Fossils refers to remains of living organisms which have been replaced in the form of rock particles due to its presence in the soil for a long period of time.

The fossils contain an understanding of the structures and characteristics

the animals had which is then compared to its present structures. This helps

to explain how the animals adapted to climate change through changes in

the structure, shape of parts of the body.

It also tells the location of animals and their different movements in response to challenges faced in the ecosystem.

Read more on https://brainly.com/question/19798469

Answer:

A selectively permeable membrane will allow water to flow freely while limiting the passage of molecules, especially large molecules or those with a charge.

Explanation:

Answer:

phosphorus-32:

Bacteriophage contains radioactive isotope that is used to mark DNA.

Radioactivity is found inside the infected bacterium

Results confirm that DNA is the genetic material of the bacteriophage.

sulfur-35:

Bacteriophage contains radioactive isotope that is used to mark protein.

No radioactivity is found inside the infected bacterium.

Results confirm that protein is not the genetic material of the bacteriophage.

Explanation:

Believe me I just did the test and I got it right.

Hope I got to help :))

The sentences that describe the results of the Hershey-Chase experiment is :

1) Phosphorus-32:

2) Sulfur-35:

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https://brainly.com/question/21731496?referrer=searchResults

Answer:

All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.

Explanation:

Brainliest please?

Answer:

Anna has been dead for more than a few hours.

Explanation:

With the presence off eggs shows us that there was enough time for the flies to discover her and lay the eggs.

Answer:

A. Obtaining embryonic stem cells for use in therapy requires the destruction of embryos.

Explanation:

Answer:

White blood cells: Serving as an army against harmful bacteria and viruses, white blood cells search for and attack and destroy germs to keep you healthy.

Explanation:

Answer:

;>;

Explanation:

warning: I am mostly guessing- so if u get this wrong I am sorry 100% sorry

here ya go!: universe, solar systems, galaxies, nebulae, meteors, planets, moons, dwarf planets, stars.

Answer:

a food web

Explanation:

What they saw was a food web, which refers to connections of food chains showing how energy and nutrients are transferred from one organism to the other.

In this example, we observe there are seven organisms (fish, algae, snails, insects, frogs, raccoons + bacteria contained in the pond) in focus here.

The green algae are Producers (because it produces its own food, not dependant on others)

The bacteria act as Decomposers. ( because they process organic waste into meaningful natural nutrients again)

The other organisms are Consumers. (because they are dependant on others for their nutrition).

Answer: it is asking if your hypothesis is different from your data or if it is close to what you thought would happen

Explanation:

Answer:

d. Protection

Answer:

transpiration is of the function of epidermal cells of a leaf

Answer: diffusion

Explanation: Diffusion expends no energy. Rather the different concentrations of materials in different areas are a form of potential energy, and diffusion is the dissipation of that potential energy as materials move down their concentration gradients, from high to low.

Among the options given, the process of diffusion does not expend or utilize energy. Thus, the correct option for this question is A.

Diffusion may be characterized as a type of movement of individual molecules of a substance from an area of higher concentration to an area of lower concentration through a semipermeable barrier. This biological movement cannot utilize any metabolic energy.

According to the context of this question, active transport is a type of transport of individual substance against a concentration gradient that actively require the use of metabolic energy. Apart from this, endocytosis and sodium-potassium pump also required energy for successful function within the body of living organisms.

Therefore, the process of diffusion does not expend or utilize energy. Thus, the correct option for this question is A.

To learn more about Diffusion, refer to the link:

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Answer:

Vitamin C helps maintain healthy connective tissue.

Explanation: