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Answer:The circulatory system consists of the heart and blood vessels which encompass all of the arteries, veins, and capillaries. The arteries carry oxygenated blood away from the heart, and veins return deoxygenated blood back to the heart. The main purpose of the circulatory system is to transport blood, oxygen, nutrients, and hormones to and from different cells and tissues throughout the body. This system works hand-in-hand with the respiratory system to facilitate the exchange of oxygen and carbon dioxide within the blood per the alveoli in the lungs. It is also very important for the removal of wastes and poisons within the body via the digestive and urinary systems.

Explanation:

As the students learned about a system that moved oxygen to the cells and contained structures that help the body fight infections, it means they were studying circulatory system. The correct option is C.

Blood vessels in the circulatory system transport blood away from and towards the heart. Arteries transport blood away from the heart, while veins transport blood back to the heart.

The circulatory system transports oxygen, nutrients, and hormones to cells while also removing waste products such as carbon dioxide.

The circulatory system usually transports two varied fluids namely blood and lymph. Blood transports oxygen and nutrients to the cells of the body, as well as waste.

Blood also transports hormones, which regulate body processes, as well as antibodies, which fight invading germs.

Carrying immune cells to their destinations is one of the most important ways your circulatory system helps your immune system.

These vital cells could not function properly without your blood vessels and arteries.

Thus, the correct option is C.

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The statement that is not one of Darwin's 4 points of natural selection is that there are traits that occur due to mutations. Thus, the correct option for this question is B.

Natural selection may be characterized as the methodology through which the populations of living organisms adapt and change themselves. Individuals in a population are naturally variable, meaning that they are all different in some ways.

There are four principles at work in evolution. They include variation, inheritance, selection, and time. These are considered the components of the evolutionary mechanism of natural selection. It also signifies more individuals are produced than can survive, there is, therefore, a struggle for existence, individuals within a species show variation, and offspring tend to inherit their parents' characters.

Therefore, the correct option for this question is B.

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Answer:

The cell cycle is controlled at three checkpoints. The integrity of the DNA is assessed at the G1 checkpoint. Proper chromosome duplication is assessed at the G2 checkpoint. Attachment of each kinetochore to a spindle fiber is assessed at the M checkpoint.

Explanation:

good luck

please mark me as a brainliest

Answer:

im sorry but wht class is this for

Explanation:

Answer:

:(

I dont that is why I am here

Explanation:

Answer:

1. Cell

2. Tissue

3. Organ

4. Organ system

5. Organism

1) Cell

2) Tissue

3) Cells

4) Organ

5) Tissues

6) Heart

7) Organs

8) Circulatory

9) Organism

10) Human

Answer:

It is achrochordus

Explanation:

I looked it up

Answer: Although they're very light, bones are strong enough to support our entire weight. Bones also protect the organs in our bodies. The skull protects the brain and forms the shape of the face. The spinal cord, a pathway for messages between the brain and the body, is protected by the backbone, or spinal column.

Explanation:

Answer:

Los parámetros son: magnitud, extensión, persistencia, reversibilidad, recuperación, persistencia, sinergia, probabilidad de ocurrencia, relación causa y efecto

Explanation:

La evaluación de un impacto ambiental debe tener en cuenta los siguientes parámetros principales:

- Magnitud. La magnitud se refiere al hecho que un impacto ambiental puede afectar al ecosistema en diferentes niveles.  

- Extensión. Este término se refiere a la superficie (por ejemplo, en metros cuadrados) del ecosistema el cual ha sufrido el impacto.  

-Reversibilidad. La reversibilidad indica la probabilidad de que el ecosistema una vez que ha sufrido el impacto pueda regresar a su estado inicial.  

- Recuperación. La recuperación es el grado de restauración al que puede llegar el medioambiente una vez sufrido el impacto.

- Persistencia. La persistencia indica la duración (cuantificable en tiempo) del impacto ambiental.  

- Sinergia. La sinergia se refiere al hecho de que dos o más impactos ambientales poseen un efecto mayor sobre el ecosistema que el producido mediante varios impactos ambientales por separado.  

- Probabilidad de ocurrencia. La probabilidad de ocurrencia expresa la posibilidad de que un impacto ambiental se produzca en un ecosistema durante un determinado período de tiempo.  

- Relación causa y efecto. La relación causa y efecto clasifica a los impactos ambientales en directos (causados por el impacto) e indirectos (causados por las consecuencias derivadas del impacto).

Answer:

One difference between these cells is plant cell has chloroplast but animal cell does not have chloroplast.

Another difference between these is that plant cell has cell wall but animal cell does not have cell wall.

Explanation:

Plant cell are known to cells that possess chloroplast. These chloroplast contain chlorophyll which enables the plants to manufacture their own food. Animal cell does not possess chloroplast which makes it impossible for animals to manufacture their own food.

Plant cell actually have cell wall and a cell membrane but animal cell does not have cell wall but only possesses cell membrane. The cell wall gives mechanical strength and maintains cell shape.

Answer:

1.Sarah is still a kid and nobody was feeding her.

2. Theodore is just one year old and he's eating beanie weenies with a sliced banana?? isn't that too much for a kid??

3. Ronald needs to stop watching movies while eating.

4. Cathy stomach is paining her. She might be ill.

Explanation:

a. Sarah caregiver always watch over baby Sarah.

a. Theodore need a healthy diet.

a. please pay attention to your kid.

a. Cathy caregiver should quickly call the doctor and be careful with Cathy meal.

Hello. This question is incomplete. The full question is:

Energy and matter cycle through a beach ecosystem on the Gulf of Mexico. Identify one kind of model you can use to show the path of energy and matter through this ecosystem. Describe one benefit of using that kind of model to show those processes.

Food web; shows energy available at each trophic level for the next group of organisms

Energy pyramid; show all pathways of energy flow in an ecosystem

Food chain; shows a single pathway of energy flowing, making it easy to see which organisms are primary, secondary and tertiary consumers

Answer:

Food chain; shows a single pathway of energy flowing, making it easy to see which organisms are primary, secondary and tertiary consumers

Explanation:

The food chain represents a linear sequence of energy transfer within an environment. This transfer is carried out with a sequence of living beings that serve as food for each other and this food that promotes the transfer of energy through a single path, allowing all levels of transmission to be observed, through primary, secondary and tertiary.

Answer:

B

Explanation:

Acids react with bases to give you a salt and water

sulfuric acid reacts with sodium hydroxide to give you

sodium sulfate and water

Answer:

B.

Explanation:

the answer is b mark brainliest

Answer:

the rate of cell division

Answer:

The regulation distance for a set of cornhole boards should be 27 feet. This measurement goes from the front of one board to the front of the other. As far as measuring this distance before playing, you have a few different options. One thing you can do is use a tape measure.

Explanation:

Answer:

Point mutation is a change to a single nucleotide letter at a single point. Hence the name.

Chromosomal mutations are deletions, rearrangements or translocations a of large sections of DNA.

Both can have effects ranging from harmless to fatal/non viable.

A point mutation could be in a region that does not code protein (and thus likely harmless) or it could introduce an early stop to translation of a gene into a protein (which could be deadly)

Chromosomal rearrangements might have the breakpoints in non gene coding regions and so be harmless or the break points could interrupt the function of vital genes .

Explanation:

Answer:

True

Explanation:

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Answer:

En gel de agarosa es un polisacárido que forma una matriz similar a la gelatina. El gel proporciona un sustrato sobre el que se puede producir la separación del ADN. Los fragmentos de ADN más grandes toman más tiempo para migrar a través de la malla de la matriz. Este fenómeno facilita la separación de las moléculas por tamaño

Explanation:

Answer:

D. They find more things that are not understood

Explanation:

After discovering something, scientist tend to find something related that sparks their curiousity.

Answer:

Continental Drift

Explanation:

This Happens:

A mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, formed by plate tectonics. This uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.

Hope I helped, have a nice day!

    -Aadi x

Answer:

Seed shape:

Purebred dominate - SS

Purebred recessive - ss

Hybrid - Ss

Seed colour:

Purebred dominate - RR

Purebred recessive - rr

Hybrid - Rr

Seed coat colour:

Purebred dominate - CC

Purebred recessive - cc

Hybrid - Cc

Pod shape:

Purebred dominate - GG

Purebred recessive - gg

Hybrid - Gg

Pod colour:

Purebred dominate - PP

Purebred recessive - pp

Hybrid - Pp

Answer:

A Nucleic Acids

Explanation:

i hope this help :)

Answer:

A

Explanation:

DNA:Deoxyribonucleic Acid

Same with RNA too

They are the form of nucleic acids.

Answer:

Disssolution

Explanation:

Precipitation is the process of a compound coming out of solution. It is the opposite of dissolution or solvation. In dissolution, the solute particles separate from each other and are surrounded by solvent molecules. In precipitation, the solute particles find each other and form a solid together

Answer:

False

Explanation:

we create more body cells with mitosis not meiosis , we create gametes with meiosis

Answer replicate the genes

Explanation:

The RNA complementary strand would be CUUGUA

Answer:

Starch

Explanation:

Plants store their energy in form of starch

I made a cheat sheet video for the assignment! Here's the link below!! :D (no uploading needed) just copy and paste to a tab :3

file:///home/chronos/u-63a2dbb5bb283cd5db17ea994f3765ae1027f343/MyFiles/Downloads/Screen%20recording%202021-05-05%2011.10.23%20AM.webm

if u don't wanna watch the vid, the answers are all of the above! btw, sorry i'm answering late, my friend :)

Answer:

D.

The substitution of a single nucleotide in the GULO coding region results in a stop codon. This results in a smaller nonfunctional protein

The substitution of a single nucleotide in the GULO coding region results in a stop codon. This results in a smaller nonfunctional protein.

With the use of modern genomics, it is possible to examine damaged metabolic pathways by screening the DNA of a wide range of organisms. The abundance of data has shown that the genetic entropy in human and other genomes is widespread.

Humans, apes, guinea pigs, bats, mice, rats, pigs, and passerine birds all have deletions in the GULO (L-gulonolactone oxidase) gene that result in loss of the vitamin C pathway.

According to recent studies and the data presented here, various GULO exon deletions in humans, chimpanzees, and gorillas all happened separately in each taxon and are connected to areas that contain a wide range of transposable element fragments.

Therefore, The substitution of a single nucleotide in the GULO coding region results in a stop codon. This results in a smaller nonfunctional protein.

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