Plz help it’s due tomorrow

Answer:

They face pounding waves as well as sudden changes in water levels and temperature that occur with high and low tides. Why is the neritic zone particularly in living things? It is rich in organisms because sunlight passes through its shallow water enabling photosynthesis to occur.

Explanation:

Answer:

Acid , phenol or protein

Explanation:

The ratio of absorbance at 260 and 280nm is what is usually used to assess the purity which a DNA or RNA posses. A ratio of 1.8 is generally accepted as being pure for a DNA sample and a ratio of 2.0 is generally accepted also as being pure for RNA. when the ratio is significantly lower in each case, it indicates that there is presence of protein, phenol or other contaminants.

Answer:

The nucleus of a dividing cell is dense and spherical. It is comparatively larger in size during synthetic phase of cell cycle. Nuclear envelop also remain absent in many stages of nuclear division.

Explanation:

Answer:

Synthesis is the phase of the cell cycle in which DNA is replicated, occurring between G1 phase and G2 phase. Since accurate duplication of the genome is critical to successful cell division, the processes that occur during S-phase are tightly regulated and widely conserved.

Explanation:

If a cell has not properly copied its chromosomes or there is damage to the DNA, the CDK will not activate the S phase cyclin and the cell will not progress to the G2 phase. The cell will remain in S phase until the chromosomes are properly copied, or the cell will undergo programmed cell death.

Each step in the cell division is controlled and regulated by proteins like Cyclins. If a cell does not go through the S phase, it can not go to the G2 phase until the replication process is completed, or until it's programmed cell death.  

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As the cell passes through different steps of cell division, there are auto control mechanisms to ensure that the step was correctly performed and the cell is ready to go to the next step.  

Many regulator molecules act during the different stages of the mitosis process to make it possible.

There are too many factors interacting, activating, and deactivating to pass from one stage to another.

Cyclins are proteins that regulate the whole cell cycle. There are different types of cycling, each of them acting on a different stage.

When the cell is going through one of the stages, the only cyclin in high levels is the one that is regulating that cycle.

Once that stage is over, that cyclin concentration decreases, and the following one increases.

But if any step was not correctly performed, the cell can not pass to the following one.

During the S stage of the interphase occurs the DNI replication process.

At this point, also occurs the synthesis of histones and other associated proteins.

This is the only stage where the DNI molecule is replicated.

S phase cyclins are in charge of regulating the stage of DNA replication.

If the cell does not go through the S phase, the cyclins of this stage are not activated. And if S phase cyclins are not active, the cell can not go to the G2 phase.  

The cell remains in the S phase until the DNA replication process is correctly done. And if it does not occur, the cell suffer programmed cell death.

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Answer:

1:2:1

Explanation:

The ratio of carbon to hydrogen to oxygen in carbohydrate molecules is 1:2:1.

Answer:

1:2:1

Explanation:

carbohydrates have a general formular of C6H12O6.

divide all through by a common factor(I.e 6)

1:2:1

Answer:

electron transport chain

Explanation:

it generates the most

Answer:

Explanation:

Chameleons are generally known as insectivores – carnivorous by nature. Depending upon the size and type of the chameleon the type of insects can be different. But, most of the chameleons eat grasshoppers, crickets, silkworms, flies, and cicadas.

Answer:

these are instructions

Answer:

Change fishing methods

Explanation:

Limiting how they fish and how many fish they catch would help the population

The answer you are looking for is C

Natural selection is a process by which the organisms adjust to the variation in the environmental conditions so they can endure and thrive in the altered conditions.

The correct answer is:

Option C. Directional selection

This can be explained as:

Therefore, toads with better traits (head size) are favoured over snakes with smaller mouth sizes.

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Answer:

C- 400 to 700 nanometers!

Explanation:

The actual range is 380-700 nm, but the closest to that is 400-700 nm!

Answer:

Chemical Energy

Explanation:

Active transport needs chemical energy in order to transport an object across a membrane.

Passive transport doesn't need energy in order to transport an object across a membrane.

Answer:

B Matter and energy cycle through the system.

Explanation:

The image is not given in the question, so the appropriate image is attached below:

Answer:

goblet cells

Explanation:

Goblet cells are the mucin-secreting glands found within epithelia. Their shape and size look like a goblet, hence named goblet cells, and contain narrow bases and wide apex.

The structure highlighted in goblet cells scattered within epithelia. Goblet cells function for producing mucin, create a protective mucus layer and immunoregulation.

Hence, the correct answer is "goblet cells".

Answer:toes

Explanation:

Fingers

Answer:

it gives water and hold the plant

and contrubite food for the whole part

Explanation:

Answer:

Yes. Monocots have leaves with parallel venation, and dicots have leaves with reticulate, net-like venation. Describe an example of a plant with leaves that are adapted to cold temperatures. Conifers such as spruce, fir, and pine have needle-shaped leaves with sunken stomata, helping to reduce water loss.

Explanation:

I looked it up I'm not actually that smart lol

Answer:

Ask google

Explanation:

Answer:

Lithosphere

A lithosphere is the rigid, outermost shell of a terrestrial-type planet, or natural satellite, that is defined by its rigid mechanical properties. On Earth, it is composed of the crust and the portion of the upper mantle that behaves elastically on time scales of thousands of years or greater

Explanation:

Answer:

yess

Explanation:

I hope it is helpful for you .....

Answer:

fertility of soil is been effected

Explanation:

Answer:

All is just to improve the soil fertility

Answer:

The answer is a Carbohydrate!

Scientists determined that organisms of the genus spinoloricus we eukaryotes and not prokaryotes because spinoloricus cells have cell walls. Thus, option C is correct.

Eukaryotes are distinguished from prokaryotes in that they organelles enclosed within a nuclear membrane. The organisms of spinoloricus are radically different from other known eukaryones in that they lack mitochondria and are able to exist in the absence of oxygen. However, their genetic material is contained within a nuclear membrane and they are therefore eukaryotes rather than prokaryotes.

Taking into consideration the main characteristic of each group, prokaryote, and eukaryote. In the first case, we have that it laks nucleus and has no sexual reproduction, meanwhile, the eukaryote has organelles and has sexual reproduction. Taking this into account we can proceed to answer each part.

Therefore, Scientists determined that organisms of the genus spinoloricus we eukaryotes and not prokaryotes because spinoloricus cells have cell walls. Thus, option C is correct.

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