In the following equation, how many atoms of Oxygen (O) are present in the products
1
2
3
6

Answer: c

Explanation:

The Archimedean screw is to  move things from a lower level to a higher level.

The Archimedean screw is one of the oldest and most usefull hydraulic machines. It is said to have been developed by  Archimedes himself in ancient Greece.

The basic use of the Archimedean screw is to lift water from a lower to a higher point therefore, the use of the Archimedean screw is to  move things from a lower level to a higher level.

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Answer:

System

Explanation:

Definition of system

Answer: The outcome of cellular respiration is that the plant takes in glucose and oxygen, gives out carbon dioxide and water and releases energy. Plants respire at all times of the day and night because their cells need a constant energy source to stay alive.

Explanation:

Answer:

If your blood pH levels aren't regulated then your blood will be like acid and potentially be fatal.

Explanation:

Your body tries to maintain homeostasis so regulating blood pH levels is vital.

Answer:

This question is incomplete. It is asking to identify the following in the experiment:

Independent variable: CAFFEINE

Dependent variable: HEARTBEAT

Experimental group: POPULATION A, which were given 0.5g of caffeine

Control group: POPULATION B, which were not given caffeine

Constants: SAME TEMPERATURE, SAME AMOUNT OF FOOD, SAME TIME BEFORE CHECKING

Explanation:

Independent variable in an experiment is the variable which is changed or manipulated by the experiment. In this experiment, the independent variable is the CAFFEINE.

Dependent variable is the variable that is measured by the experiment or in other words, the variable that responds to changes made to the independent variable. In this experiment, the dependent variable is the HEARTBEAT measured.

The experimental group of an experiment is the group that receives the experimental treatment (caffeine). In this experiment, the POPULATION A of Daphnia magna, or water fleas are the experimental group because they received 0.5g of caffeine.

On the other hand, the control group is the group that does not receive the experimental treatment. In this experiment, POPULATION B did not receive any caffeine, hence, it is the CONTROL GROUP.

Constant or controlled variable are those variables that the experimenter must keep unchanged for all groups throughout the experiment, in order not to influence the experiment's outcome. In this experiment, the constants are: SAME TEMPERATURE, SAME AMOUNT OF FOOD, SAME TIME BEFORE CHECKING (2hrs)

Answer:

Number of protons I think.

I'm not 100% sure though I just kinda remember learning about this. Sorry if I'm wrong.

Answer:

Explanation:

Although no options was given, the explanation below should give detail explanation.

The Chemical  reactants(  internal factors) for the process of photosynthesis are C02 and H20, and enzymes. Other external factors  are sunlight and chlorophyll.Therefore for a plant to undergo photosynthesis these reactants must be present in the presence of sunlight.

In the present scenario the plant in the test tube exposed to sunlight must used up the C02  with water and exposed sunlight to produce O2 -the by products and  CHO,Protein and Lipids in plants.

Since the C02 has  metabolised,no CO2 would be present in the test tube  of the plant and the water, hence BTB is negative,blue- no C02.

However,the plants in the dark lacks  the supply  of  sunlight therefore no photosynthesis could occur.Consequentially the C02 is not metabolized,and its concentration is high in the leaf in the test tube placed in the dark.This is indicated as yellow positive by the BTB which change from Blue to yellow.

Answer:

First, we must understand:

What is Hydrogen Bonding?

Hydrogen Bonding is the interaction between Hydrogen atoms, with their molecules, due to the fact that their (Hydrogen atoms and bonds) are weak that even the other types of bonds are stronger.

(The other bonds are: covalent and ionic bonds)

(Hydrogen bonds are weaker than the average bonds listed above)

If you are to take how and why hydrogen bonds effect/affect ice cubes, we would have to look at how ice cube are formed. If you know, ice cubes can be created due to low temperatures (cold temperatures) making water into a solid. When ice cubes form into a sold, the spacing of the molecules become further apart, creating the density of the overall ice cube lighter than it was allowing it (ice cubes) to float.

Answer:

false

Explanation:

biology is the study of every organisms

Answer:

The nucleus has very important roles to play. As it contains genetic material, it coordinates cell activities like protein synthesis and cell division. Anatomically the nucleus is made up of several components: nuclear envelope, nuclear lamina, nucleolus, chromosomes, nucleoplasm are some of these components.

Explanation:

The nucleus controls and regulates the activities of the cellular (e.g., growth and metabolism) and carries the genes and systems that include the hereditary statistics.

The nucleus has 2 primary features: it's miles responsible for storing the cell's hereditary cloth or the DNA. it is liable for coordinating the various essential cell activities along with protein synthesis, cellular division, growth, and a bunch of other critical features.

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that is what I think hope it's right good luck

Answer:

You need to draw a water molecule but on each end put a positive and negative that is why water is polar because it is attracted to itself.

Explanation:

Answer:

Process of the cells, tissues, organs, and organ systems all working together to maintain a stable internal environment are best defined by the term homeostasis (option B).

Explanation:

All living organisms perform their functions properly by maintaining some conditions of the internal environment constant, such as temperature, pH and amount of water or electrolytes. This also guarantees a healthy state and a longer life.

The maintenance of the organic balance is done by an internal regulation system, called homeostasis. Homeostasis means all the processes aimed at preserving the balance and fulfilling the organic functions properly.

The other options are not correct because:

    A. Digestion is the process by which nutrients are converted into small molecules that are easily absorbed by the body.

    C. Excretion is the process of eliminating waste from metabolic and organic processes.

    D. Disequilibrium is the term applied to the failure or loss of ideal conditions or balance.

Answer:

Two genetically identical diploid daughter cells

Explanation:

Mitosis is the process of cell division through which cells proliferate to create new cells. It allows organisms to grow and replace/repair tissues.

Before the cell divides, the diploid cell (two copies of every chromosome) duplicates its genetic material. During the stages of mitosis, the genetic material is divided between two new cells such that each cell contains a complete copy of the genetic information.

Therefore, at the end of mitosis are two genetically identical daughter cells, each with a diploid genome. Each cell is also identical to the starting cell.

it simply means the cell's DNA is surrounded by a membrane. therefore the nucleus houses the cell's DNA and directs the synthesis of the proteins and ribosomes the cellular responsible for protein synthesis.

Answer:

The surfaces of the leaves of many plants help to reduce water loss because they are not water-permeable. How does the biomolecule that makes up this surface differ from other biomolecules? It is made up of polymers of amino acids. It is made up of long chains of fatty acids.

Explanation:

The biomolecules that make up this surface of leaves differ from other biomolecules by the fact that they are made up of long chains of fatty acids. Thus, the correct option is A.

Biomolecules may be defined as those types of molecules that are significantly present in the body of living organisms and are required to perform essential functions like cell division, morphogenesis, or development.

The long chains of fatty acids typically consist of a hydrophobic arrangement that prevents the movement of water from one part to the other. This specific property of forming a water barrier is only present in fatty acids.

Due to this, the surfaces of the leaves of many plants help to reduce water loss because they are not water-permeable, which means to prevent the migration of water.

Therefore, the correct option for this question is A.

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Answer:

C

Explanation:

mitosis does body cells while meiosis does sex cells.

Answer:

hydroponic farming

Explanation:

Answer:

A is correct

B is correct

C is lady bird

D is thrush

E is lettuce

Answer:

The Law of Conservation of Matter states that matter cannot be created or destroyed. The carbon cycle is an example of the Law because the same carbon atoms are being recycled through the carbon cycle. ... Carbon is used for energy, and some is stored for growth.

Answer:

air

Explanation:

Water, surface ground and air.

Explanation:

Answer:

A cone is a visual receptor that assists individuals in processing daytime vision and color. A rod is a visual receptor that assists individuals in processing nighttime and peripheral vision.

Explanation:

. what edge said

There are two main types of photoreceptor cells of the retina -

Photoreceptors are responsible for visual phototransduction. They convert light into biological signals.

Rod cells- contain rhodopsin that has large receptive fields and works best in dim light. They are in the outer side or peripheral area of the retina and do not distinguish color.

Cone cells - contain iodopsin, have small receptive fields and work best in high-intensity light.

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Answer:

400 marbles

Explanation:

The  total number of marbles should be 400.

Given that,

Based on the above information, the calculation is as follows:

[tex]= 100 \times 4[/tex]

= 400

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Answer:

A physical quantity is a property of a material or system that can be quantified by measurement.