Primary producers are in terrestrial ecosystems and in marine ecosystems.

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Which of the following accurately describes kidney function?A. Kidneys will excrete salts if you have too little in your blood. B. Kidneys are directed by the presence of antidiuretic hormone to excrete more water in urine. C. Kidney function is controlled by the blood's composition and hormones. D. Kidneys can excrete salts, but not glucose.

Viruses are not considered to be living things, but they depend upon living cells for energy, reproduction, and protection at the expense of the cells that they invade. The type of relationship described could best be classified as one of

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This relationship can be best described by the word parasitism.

well the red blood cells are there for our blood
white blood cells are there to protect our blood from running out of our skin when we have a cut
hope this is enough
and hope this helped!!!!!!

Will notices that crickets seem to chirp more frequently at night in June the they do in October he asks himself how do temperature changes affect how often crickets chirp if he were to perform an experiment which if theses statements would be the best hypothesis

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Answer:

This question lacks options; the options are:

A) Crickets are inactive in October.

B) Do crickets like warm weather better than cold weather?

C) Crickets chirp more frequently as temperature increases.

D) Crickets chirp for many reasons, and temperature is probably one reason.

The answer is C

Explanation:

A hypothesis is a testable explanation given to an observed problem. The hypothesis aims at solving or answering a particular question or observation. A hypothesis, which is subject to testing via experimentation, explains how the independent variable affects the dependent variable.

According to this question, Will notices that crickets seem to chirp more frequently at night in June than they do in October. He then asks a scientific question based on this observation that goes thus: how do temperature changes affect how often crickets chirp?

The best hypothesis that explains this scientific question is "Crickets chirp more frequently as temperature increases" because it gives a predictive statement about how a change in temperature (independent variable) affects chirping in crickets (dependent variable).

_____ is the main energy source for all life on earth.

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the sun hoped i helped

The Sun.

The sun gives to plants, then the plants give to us.

Easy? :)

Please answer my question PLEASEEEE I GIVE 25 POINTS I SWEAR ON GOD PLEASE

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Answer:

um whats ur question, tell me on comments

Explanation:

(its actually 8 points)

Answer: Okay what is the question?

Explanation:

Which component of a virus is lacking in a cell?

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Capsid is the component of a virus that is lacking in its cell

A capsid is the protein shell that surrounds a virus. Capsids functions by protecting the nucleic acids of a virus while interacting with the host environment. Capsids are made up of many oligomeric structural subunits that contains the protein; protomers. Capsids are generally grouped based on their structure. The common ones are helical and icosahedral.

Answer:

Protein Caspid, hope this helps. <3

Explanation:

I did the test.

After chromosomes are formed, during which phase of mitosis do the chromosomes attach to the spindle fibers by their centromeres?

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Metaphase is when the chromosomes attach to the spindle fibers by their centromeres
This can be confused with the phases:prophase where the spindle fibers form a bridge between the ends of the cell, and anaphase where the spindle fibers draw the chromosomes to the opposite ends of the cell(the cell splits up)

In the metaphase, chromosomes attach to the spindle fibers by their centromeres.

Further Explanation:

Mitosis is an equational division phase of the reproductive cell cycle in which spindles binds to the chromosome and move the sister chromatid separate. It is an essential step for the separation of genetic material. In the cytokinesis phase, the cytoplasm separates and forms two daughter cells. It consists of four steps:

• Prophase

• Metaphase

• Anaphase

• Telophase

In metaphase, the chromosomes are aligned in the center of the cell that indicates the second stage of mitosis. The cohesion protein plays a key role in the chromosome segregation process. It mediates cohesion between replicated sister chromatids. It is the phase where chromosomes attach to the spindle fibers by their centromeres. The cohesion protein that holds the sister chromatids together at the centromere is removed in anaphase. In this phase, the genetic material is present in the condensed form known as chromosomes.

Learn more:

1. Learn more about the mitosis brainly.com/question/6462270

2. Learn more about the menstrual cycle brainly.com/question/723944

3. Learn more about the meiosis brainly.com/question/94813

Answer Details:

Grade: High School

Subject:Biology

Chapter: Reproduction

Keywords:

Metaphase, anaphase, separation, sister chromatid, segregation, telophase, cytokinesis, cell, indicates, sister chromatid, cohesion protein.

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