What does the ratio 3:1 mean?
Pls answer

Answer:

absorbing dead or decaying organisms.

Explanation:

Answer:

absorbing dead or decaying organisms.

Explanation:

i took the test

Answer:

1. Passive ventricular fillings.

2. Ventricular ejection.

3. Atrial contraction

Explanation:

In Human anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.

Generally, the cardiac cycle occurs in two (2) stages;

Diastole : in this stage, the ventricles is relaxed and would be filled with blood.

Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.

The following terms describe the physical or mechanical events with the correct phases of the cardiac cycle in mammals (human beings).

1. Passive ventricular fillings: is what happens when depolarization of the atria cause the atria to go into atrial systole. Atrial pressure increases and more blood is forced into the ventricles via the AV valves.

2. Ventricular ejection: is the continued contraction of the ventricles that leads to the pressure inside the ventricles to build up and will thus force open the semilunar valves and blood will be ejected out of the heart to the pulmonary and systemic circuits.

3. Atrial contraction: the process that begins when both the atria and the ventricles are in diastole. Blood from the veins are returning to the heart and the pressure within the atria is higher than the ventricular pressure. Causing the AV valves to open and blood will passively fill into the ventricles. It is important to know that the semilunar valves are closed shut because they have higher pressure than both the left and right ventricle.

To find the average they also take into account the salary of the president, who probably makes a lot more than $20,000.

Answer:

I hope I can help a bit.

Explanation:

Inner Planets:

-smaller in size

-rocky

-more closer to sun, meaning warmer

-iron core

-slower rotation

-no rings

Outer planets:

-faster rotations

-rings

-made mostly out of gas

-further away from the sun meaning colder

-larger in size

Answer:

Explanation:

I believe that it comes from people expression and how they act because all of them emojis out there are our traits everday

Hope this helps

I believe that it comes from people expression and how they act because all of them emojis out there are our traits everyday.

A trait is a specific characteristic of an individual. Traits can be determined by genes, environmental factors or by a combination of both.

Biological traits describe species' physiology, morphology, life history, and behavior, capturing both inter-specific interactions and the connections between species and their environment.

Autosomal dominant – where the gene for a trait or condition is dominant, and is on a non-sex chromosome. autosomal recessive – where the gene for a trait or condition is recessive, and is on a non-sex chromosome. X-linked dominant – where the gene for a trait or condition is dominant, and is on the X-chromosome.

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Answer:

It takes 27 days 7 hours and 43 minutes for the Moon to complete one full orbit around Earth. it's called the sidereal month it's measured by our Moon's position relative to distant fixed stars. but it takes our Moon about 29.5 days to complete one cycle of phases from new Moon to new Moon.

Explanation:

learned about it in 5th grade

Answer:

a

Explanation:

Answer:

Explanation:

Answer:

Is there an answer choice to choose from but if not a rocks texture includes.

Explanation:

Rocks are made of minerals. ... Sedimentary rocks sometimes are "gritty" or feel like sand. So students should being to feel rocks to get a sense of their texture. Metamorphic rocks tend to be "shiny" like a rock that has many rhinestones.

Answer:

I'd say your answer is D) Headache.

Explanation:

A headache isn't really visible and can't necessarily be measured, whereas all the other answer choices are both visible and can be measured in some way, shape, or form.

Answer:

Most likely headache.

Explanation:

Jaundice can be seen from the yellowness from the skin, and if a person has fatigue.

Cyanosis can be seen from the bluish/greenish hue on a person's skin.

And heavy breathing can just be heard.

Answer:

Enzymes function best at specific pH and temperatures.

Explanation:

An enzyme can be defined as a biological catalyst that typically lowers the activation energy of a biological reaction. When the activation energy of a reaction is low, the rate of the reaction would be faster. Therefore, an enzyme speeds or catalyzes the rate of a reaction by lowering its activation energy.

Also, if the conditions are not optimal for an enzyme, it limits the ability of an enzyme to bind or be joined with its substrates.

Hence, the correct statement about enzymes is that enzymes function best at specific pH and temperatures. An increase in temperature increases or speeds up the rate of a reaction while low temperature limits or reduces the rate of a reaction. The optimal temperature for enzymes in the human body is around 37 degrees celsius.

Answer:

b

Explanation:

It makes the most sense

Answer:

B

Explanation:

I just took the test on plato

Answer:

1. In the dispersive model, each strand of both daughter molecules contains a mixture of old and newly synthesized DNA, and in the semiconservative model, each new double helix consists of one old and one new strand.

Explanation: it helps to remember that dispersive means to disperse your DNA molecules! And semi conservative means you keep one of your old strands! Hope this helps!

Answer:

option 1 is correct

Explanation:

in dispersive, each strand of DNA has alternating fragments of old and new DNA while in the semiconservative each new double helix consists of one old and one new strand.

Answer:

the answer to the question is c

Answer:

Explanation:

The four (4) phyla of a gymnosperm include Cycadophyta, Gynkophyta, Gnetophyta, and Coniferophyta. The below information shows the correctly suitable matches for the right description.

[tex]\text{1. Support system is a stem ------ I. Phyla Ginkogphyta, Gnetophyta, and Coniferophyta }[/tex][tex]\text{2. Support system is a trunk ------ F. Both Cycadophyta and Gnetophyta}[/tex]

[tex]\text{3. Has tap roots ------ H. Both Gnetophyta and Coniferophyta }[/tex]

[tex]\text{4. Has long and short branching roots and rosettes of highly divided leaves.}[/tex]

[tex]\text{----- A. Cycadophyta}[/tex]

[tex]\text{5. Reproduces by both sexual and asexual means. -}[/tex][tex]\text{------ G. Both Ginkogphyta and Coniferophyta}[/tex]

[tex]\text{6. Reproduces by sexual means.  ------ E. Both Cycadophyta and Ginkgophyta}[/tex]

[tex]\text{7.  Have fan-shaped dimorphic leaves.----- B. Ginkgophyta}[/tex]

[tex]\text{8.  Have needles in bundles  ---- D. Coniferophyta}[/tex]

[tex]\text{9. Have strap-like or scale-like leaves ----  C. Gnetophyta }[/tex]

[tex]\text{10. Seeds are not enclosed in an ovule but mature on the surface of a cone scale. }[/tex]

[tex]\text{----- J. All four phyla}[/tex]

Answer:

The only one ik is hydroxide

Answer:

A, C, E

Explanation:

Answer:

11/12 is greater than 2/3!

Answer:

A

Explanation:

It's A

Due to this unique property of water, the lake would not freeze solid.

The anomalous expansion of water is an abnormal property of water in which it expands instead of contracting when the temperature goes from 4 degree Celsius to 0 degree Celsius and it becomes less dense.

Due to this property of water, the aquatic life is protected deep in water in colder region so we can conclude that due to this unique property of water, the lake would not freeze solid.

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Answer:

The answer is D because we all need these skills when buying a new business.

Answer:

One of the most famous water towers in Illinois is the Chicago water tower built in 1869 by William W. Boyington. The huge tower was built to pump water from Lake Michigan.  This tower is a very rare tower because it is also one of the few towers to survive the great chicago fire in 1871. This water tower has had a positive affect on the people of chicago providing water for them.

Explanation:

hope this helps :)

Answer:

C

Explanation:

The following best describes the interaction that occurs in self-fertilization, Pollen is released from the anther and is transferred to the stigma.

Self-fertilization is also called autogamy, in which the fertilization occurs within the same plant.

The anther of the plant fertilizes the pollen of flowers of the same plant.

In these plants, the father and mother are of the same plants.

Thus, the correct option is C.

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Answer:

Structural, transport, antibodies, storage, contractile protein.

Answer:

The blank is not to be filled with only oxygen organic compounds also contain other elements such as hydrogen, nitrogen, phosphorus and sulphur.

Hope this was of some help

Hope this was of some help ALL THE BEST !!

.

oxygen in the water varies widely because of the... # of producers, # of decomposers, and temperature.

Answer:

In mammals (like cat and dog pets), external respiration takes place by the exchange of gases in the alveoli of the lungs  

Explanation:

External respiration refers to the process of exchange of gases, i.e., oxygen (O2) and carbon dioxide (CO2), with the environment. In mammals like humans, dogs and cats, external respiration occurs in the millions of alveoli in the lungs and the capillaries that are located in the walls of the alveoli. This process (gas exchange) happens due to simple diffusion. The O2 is taken from the environment (by inhalation) and travels from the alveoli to the blood in the capillaries that surround the alveoli, while and CO2 diffuses from the blood capillaries to the alveoli (where this gas is exhaled).

Answer:

solid matter is your correct answer..