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Sedbober [7]
2 years ago
5

Which of the following is the most likely way that two water molecules will interact? Choose 1 answer: Choose 1 answer: (Choice

A) A Two water molecules connected by two H-H interactions (Choice B) B Two water molecules connected by an O-O interaction (Choice C) C Two water molecules connected by an H-H interaction (Choice D) D Two water molecules connected by an O-H interaction
Biology
1 answer:
grin007 [14]2 years ago
3 0

Answer:

D. Two water molecules connected by an O-H interaction

Explanation:

Oxygen has a slight negative charge and hydrogen has slight positive charge. This creates an attraction between the two atoms which helps them bond.

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Help please!!!!<br> I will mark you brainliest if i get the correct answer<br> I need ASAP!!!!
yuradex [85]

Answer: c is the answer

Explanation: it the answer because spud waves travel without the air u hear it

5 0
2 years ago
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Two scientists wanted to determine if temperature affects the growth of plants answers
bija089 [108]
The goal of an experimental investigation is to determine how changes in an independent variable affects another variable, which is called the dependent variable.

Remember: When designing an Experimental Investigation it is important that you only have one independent variable and one dependent variable. All other variables must be controlled, meaning they must stay the same.

FYI: Controlled variables are not the same as a Control for your Investigation. The following will explain this.

Start Experiment Design:

I want you to understand some of the thought processes for designing an experiment that meets Science Fair Project requirements.

1. You need to have a purpose for your investigation. At this point you may not know exactly what you want to do but let’s assume you want to work with plants. I’d search the web and find different project ideas about plants.
You will find ideas on this page?



Let’s assume you decide to investigate how light effects plant growth. At this point you need to write a basic purpose. I point out that this is might only be a BASIC Purpose, meaning you may need to improve it.

Basic Purpose of Investigation: How light effects plant growth.

I’ll come back to the purpose, but next you need to write your science fair question.

2. The question for an experimental investigation must identify both the independent variable and the dependent variable. Your basic purpose identifies light as the independent variable and plant growth as the dependent variable.

Don’t Forget: The independent variable and the dependent variable for an experimental investigation must be measurable.

Measuring the Independent Variable

How does one measure light?
Light is very general. You need to be more specific about the independent variable. You will get the point after reading the following questions.

Do you want to measure how different types of light sources, such as sunlight, artificial light, or colored light effects plant growth? This is a good idea for a science project.
Do you want to measure how changes in the amount of one type of light effects plants growth?
This is another good idea for a science project.See ????? for more ideas for how light affects plant growth.
You may have other ideas about the light you want to use, but for this article, I will give examples for measuring the amount of one type of light.

The Independent Variable is the amount of light the plant received.

Ideas for how to change the amount of light.

1. Use sunlight which changes during the day as well as from one day to the next.
You can also use direct and indirect sunlight.

2. If you use artificial light you can decide when and for how long the plant will receive this light. You also have the option to control the wattage of light used–its color–type (fluorescent, UV, incandescent). Just use the same type of light for each test plant–see controlled var

iables below.
5 0
3 years ago
What information would be most relevant to determining the time of death?
Nuetrik [128]

Lividity can be defined as the typical bluish-purple discoloration of the skin after death. Rigor mortis can be defined as the postmortem state in which the muscles become stiff.

  • After death, the stomach contains identifiable ingested foods within two hours.

  • Rigor mortis is characterized by the stiffening of the body after death, which is caused by the absence of ATP in muscle tissues.

  • Postmortem lividity or livor mortis is caused by the accumulation of blood in blood vessels (the lack of arterial pressure) as a result of gravity.

  • The most relevant information to determine the time of death is the presence of lividity, rigor mortis, and/or stomach contents (Option c).

Learn more in:

brainly.com/question/2053340?referrer=searchResults

5 0
3 years ago
Drag the terms on the left to the appropriate blanks on the right to complete the sentences. resethelp biomass assimilated feces
yaroslaw [1]

1. The right answer is not assimilated

The assimilation designates in biology the process by which substances and materials external to the body are transformed into substances and materials interior to the body.

2.  The right answer is feces.

Feces correspond to the residue of digestion that the intestine could not absorb. They consist of 80% water and 20% dry matter (intestinal cell debris, bacteria, cellulose that comes from the non-absorbable part of plants).

3. The right answer is assimilated  

The opposite of the first one.

4. The right answer is cellular respiration.

Cellular respiration is the process of cellular metabolism that converts the chemical energy contained in nutrients into ATP (adenosine triphosphate).

5. The right answer is assimilated

"Assimilation" can be also used for energy.

6. The right answer is biomass

In the field of energy, biomass is the organic matter of plant origin (microalgae included), animal, bacterial or fungal (fungi), usable as a source of energy.

7. The right answer is biosynthesis.

Biosynthesis consists of a formation and production of a chemical compound body by a living organism, usually due to the catalysis of an enzyme. For example, protein synthesis is the synthesis of organic substances by an organism. Chemosynthesis and photosynthesis are biosynthesis.

8. The right answer is non assimilated.

Since it is lost, so it is not assimilated by the organism.

9. The right answer is biosynthesis.

In ecology, the trophic level is the rank occupied by a living being in a food web. It is measured in some way by the distance separating this being from the basic level which is that of the primary autotrophic production.

Above this basic level, each link (or stage) of a food chain corresponds to a trophic level.

8 0
3 years ago
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Why is it important to use metric system when conducting scientific investigation
IrinaK [193]
So you know that your measurements are exactly correct.

8 0
3 years ago
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