Biology multiple choice.

Answer:

The mRNA was positively corresponding with its simultaneous serum levels

Explanation:

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Answer:

All cells have plasma membranes. Can molecules enter and leave the cell? Yes. The plasma membrane (also called the cell membrane), is a lipid barrier where molecule organelles live. The golgi ( a cell organelle) helps move the proteins across the plasma membarane. Proteins cannot move through the plasma membrane barrier by themselves because they are not small enough like water.

Explanation:

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Answer:

puddle, rain, and cloud

the puddle will heat up and evaporate causing it to go into the sky

rain is when evaporated water condensates and forms a cloud once the water drops get to heavy they fall

and the cloud is caused by evaporated water condensating and thats when the water starts to cool down

Answer:

it doesn't say the options so I'm what to pick from sorry

Answer:

The correct answer is - Bb and Bb.

Explanation:

In this case, there are two traits decided by the black "B" allele that is dominant over "b" which is silver. In this case the cross between two black feather birds and the there would be genotype:

BB and BB or Bb and Bb or Bb and BB

1.  In first case, and the third case, there is no or only one allele for the silver trait so the correct answer would be - Bb and Bb

    B      b

B  Bb     Bb

b   Bb    bb

thus, the correct answer is - bb which is silver feather.

Answer:

Apoptosis is the process of programmed cell death.

Explanation:

Answer:

nitrogen fixers------cyanobacteria  

jellyfish--------------- nekton

zooplankton ----- phytoplankton

whales----------- nekton  

Explanation:

Diatoms are single-celled algae that live in houses made of glass. They are the only organism on the planet with cell walls composed of transparent, opaline silica.  Cyanobacteria is also called nitrogen fixers because cyanobacteria fixes atmospheric nitrogen in the soil in the available forms of nitrogen to the plants. Whales  and jellyfish are nekton because they move in the water independently.   Zooplankton feed on phytoplankton for gaining energy and survival.

Answer:

nitrogen fixers------cyanobacteria  

jellyfish--------------- phytoplankton

zooplankton ----- diatoms

whales----------- nekton  

Explanation:

im pretty sure that is right

Answer:

pretty sure its c

Explanation:

dont forget to five-star and heart! :)

Answer:

Liter is a measurement unit that represents vume.

A female offspring of the cross has a 100% chance of having a recessive allele for Duchenne muscular dystrophy disorder. The correct option is 4.

Duchenne muscular dystrophy is a recessive genetic disease caused by a faulty allele.

Duchenne muscular dystrophy is an X-linked recessive disorder, which means that the gene responsible for the disorder is located on the X chromosome.

This defective allele is found on the X chromosome; females have two X chromosomes, while males have one.

A female with this genetic disorder has a one hundred percent chance of passing on the defective allele to her offspring.

In conclusion, a female offspring of the cross has a 100% chance of having a recessive allele for Duchenne muscular dystrophy disorder.

Thus, the correct option is 4.

For more details regarding muscular dystrophy, visit:

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Explanation:

I wrote out an explanation but it said "Rude! We don't use such words here. Please change it". I honestly don't know what word i couldn't use but I just could not post it. I tried changing any words that may have caused it but it did not fix the issue. So here are the answers only.

Answer:

Some body systems work together to complete a job. For example, the respiratory and circulatory systems work together to provide the body with oxygen and to rid the body of carbon dioxide. The lungs provide a place where oxygen can reach the blood and carbon dioxide can be removed from it. Some body systems share a common organ that performs more than one job.

Answer:

man-made chemicals

like cars,air conditioner, refrigerators,ect

Answer:

the good ozone is being destroyed by man-made chemicals

Answer:

Generating energy that produces no greenhouse gas emissions from fossil fuels and reduces some types of air pollution. Diversifying energy supply and reducing dependence on imported fuels. Creating economic development and jobs in manufacturing, installation, and more.so by not knowing how to generate energy all these things will therefore not be possible. making it harder for humans to survive.

This question should be answered based on your perception of the importance of energy in our society. As this perception is very personal, I cannot answer it for you, but I will show you how to answer it.

First, you should think about all the types of energy we use on a daily basis and how impactful a lack of them would be.

After that, you should write your answer as follows:

You can find more information about this at the link below:

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Answer: when their is a new moon

Explanation:

Total solar eclipses happen when the Moon completely covers the Sun, and it can only take place when the Moon is near perigee, the point of the Moon's orbit closest to Earth. You can only see a total solar eclipse if you're in the path where the Moon casts its darkest shadow, the umbra.

Sand i think? Maybe dust tho if sand isnt an option

Explanation:

The resulting particles are called sediments.

Rocks and minerals are disintegrated by agents of weathering such as water, glacial (ice) and wind. When these agents of weathering act on rock and minerals, they break down into small particles. These small pieces of weathered rocks and minerals is what is called sediments.

Sediments are pieces of weathered materials from rocks and minerals which can be carried by agents of erosion and deposited in another location.

Thus, the resulting particles from the breakdown of rocks and minerals are called sediments.

Learn more about sediments here:

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c I think it is c have a good dsy

Answer:

Pressure and Heat.

Explanation:

Answer:A,C,F

Explanation:

USATestprep

Answer:

No.

Explanation:

No, elements of xylem in a vascular bundle are not lesser than those of phloem because of the division of xylem progenitor cells that increases the xylem concentration in vascular bundle. The vascular cambium forms more xylem tissue than phloem due to more division of the xylem progenitor cells. so in the light of this discussion we can say that xylem is more in concentration than phloem in a vascular bundle.

Answer:

Temperature: Raising temperature generally speeds up a reaction, and lowering temperature slows down a reaction. However, extreme high temperatures can cause an enzyme to lose its shape (denature) and stop working. pH: Each enzyme has an optimum pH range.

Explanation:

Answer:

A nerve impulse is the way nerve cells (neurons) communicate with one another.

Explanation:

Answer:

It helps in the survival of organism which leads to prevent destruction of their habitat.

Explanation:

The available food and its shelf life are the information that helps the organisms to prevent destruction of their habitats because it provides information about in how many days the food can be eaten by the organisms which helps in surviving the organisms in the environment in which the food is limited. The wise use of available resources for the survival can help organism to survive in that environment and prevent to stop the destruction of their habitat completely.

Answer:q

Explanation: