how many people live in world

Answers

Answer 1

Answer:

7,794,798,739

Explanation:


Related Questions

You will need to think about your knowledge of particle theory to answer this question.
a) What effect does an increase in temperature have on the kinetic energy of molecules
of a gas or a solute?
b) predict and explain how an increase in temperature will affect the rate of diffusion of a solute

Answers

Answer:

A is the answer I believe

AB blood type contains what type of antigens?
A. B antigens
B. No antigens
C. A antigens
D. A and B antigens

Answers

Answer:

D. A and B antigens

Explanation:

In AB blood type there is A antigen and B antigen but there are no antibodies.

Explain how the waste products of photosynthesis and cellular respiration are essential to the corresponding process

Answers

Carbon Dioxide comes into the leaf through the stomata which are tiny holes in the leaf that allow water and gases in and out. The carbon dioxide that the plant comes from being a waste product breathed out by organisms.

Question 3
When dissolved in water, many bases release which of the following particles?
Select one:
a. Htions
lil
b. H2 molecules
C. (OH) ions
DE
d. O molecules
CLE

Answers

Bases release OH- ions in solutions, whereas Acids release H+ ions in solutions

What is the volume of this fish tank?
l=50 cm h=12 cm w=20 cm

Answers

Answer:

Volume(v)= l×w×h

= 50cm×20cm×12cm

= 12000cm^3

ans.

TRUE OR FALSE: Agricultural Scientists play a vital role in maintaining and expanding our nation's food supply.

Answers

True, Agricultural and food scientists play an important role in maintaining and expanding the nation's food supply. Many work in basic or applied research and development. ... With a focus on food production, they explore animal genetics, nutrition, reproduction, diseases, growth, and development.

Fitness in an evolutionary sense is measured in:
a. Number of viable offspring produced
b. Physical appearance
c. Lifespan
d. Ability to survive

Answers

Answer:

D. ability to survive

"The central concept of natural selection is the evolutionary fitness of an organism. Fitness is measured by an organism's ability to survive and reproduce, which determines the size of its genetic contribution to the next generation."

Fitness in an evolutionary sense is measured in the ability to survive in a particular habitat. Thus, the correct option is D.

What is Fitness?

Fitness may be defined as the situation of survivability of an organism under a given condition.

It is the concept of natural selection that it is only the relative fitness that estimates the existence or extinction of species in a particular habitat.

The Relative fitness of an organism overall depends on relative survival and relative reproduction.

Therefore, Fitness in an evolutionary sense is measured in the ability to survive in a particular habitat. Thus, the correct option is D.

To learn more about Relative fitness, refer to the link:

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How many valves does the human heart have?

Answers

Answer:

The right auricle opens into the right ventricle, this opening is guarded by the tricuspid valve (having three cusps or flaps). Similarly, the opening between the left auricle and the left ventricle is guarded by the bicuspid valve (having two cusps or flaps). These valves regulate the flow of blood in one direction i.e., from auricles into the ventricles.

The blood flows from the right ventricle into the pulmonary artery and from the left ventricle into the aorta (the largest artery). The flow of blood from the ventricles into these two arteries is also regulated by valves. These valves resemble a half moon, hence they are called semi-lunar valves. These valves are present at the opening where the pulmonary artery and aorta leave the right and left ventricles respectively. They ensure that the blood does not flow back into the ventricles.


HELP THSI IS 100 POINTS
A group of students is doing an experiment where they roll a ball down a
ramp and then measure how far across the floor it rolls. The factors that are
the same each time are: - the ball - the ramp, including its length and angle
to the surface - where on the ramp the ball starts from The students do
change the type of surface the ball rolls on. What is the independent
variable in this experiment? *
ramp
ball
distance
type of surface the ball rolls on.What is the independent variable in this experiment

Answers

Answer:

The Ramp.

Explanation:

You don't move the ramp, the ramp isn't dependent on the ball or the distance.

The distance depends on the ball and ramp

the ball depends on the ramp

classification of plant moss with two characteristics

Answers

Answer:

risiysyoetistosi ektekydoyoyeo


What type of relationship do humans and honeyguides have?

Answers

Answer:

Humans and honeyguides have a mutualistic relationship, because they both benefit each other. Humans find honey much faster using the birds as guides, and the birds avoid being stung by bees.

if my answer helps you than mark me as brainliest.

Answer:

Humans and honeyguides have a mutualistic relationship because they both benefit each other. Humans find honey much faster using the birds as guides, and the birds avoid being stung by bees.

Explanation:

PLATO answer

How does the amount of nitrogen in inhaled air compare to the amount of nitrogen in exhaled air?
A. There is no nitrogen in either
OB. The nitrogen stays the same in both
C. There is more nitrogen in exhaled ait:
D. There is less nitrogen in exhaled air

Answers

Answer:

from my understanding your body doesn't do anything with the nitrogen so the answere would be B

You are conducting an experiment to measure the gain in mass of a young mouse over 10 weeks. Instructing a graph represent your data which variable should you place along the X axis and which variable should you played along the Y axis

Answers

In this experiment, the gain in mass should be plotted along the Y axis while the time (in weeks) should be plotted along the X axis of the graph.

The easiest pattern of reporting experimental results in science is by the use of a graph. A graph is a diagrammatic representation of the relationship between two variables along the X-Y Cartesian axes.

In this experiment, we are trying to represent the relationship between the gain in mass and time taken. The experiment is scheduled to run over a course of ten weeks.

The X axis ought to represent the time in weeks while the Y axis ought to represent the gain in mass.

This derives from the fact that it is conventional for the dependent variable (in this case gain in mass) to be plotted along the Y axis while the independent variable (time) to be plotted along the X axis.

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finish the gaps
if you increase the concentration difference, the rate will..........
if you increase the thickness of the membrane, the rate will..............
if you increase the surface area, the rate will.....................

Answers

Answer:

0

Explanation:

Answer:

the rate goes up four times.

?

increase the reaction rate

Explanation:

hope it helps u

pls mark brainliest

How does the environment influence the survival advantage/disadvantage of certain characteristics?

Answers

Answer:

Many students believe that the physical characteristics of organisms change in response to changes in the environment in which the organisms live, and that these changes are passed on to future generations. For example, there is widespread belief that, over many generations, giraffes have gradually developed longer necks as they competed with other animals and each other to reach higher and higher leaves on trees for food.

Many students also believe that organisms can deliberately develop new traits in order to improve their chances of survival. As an example, students believe that moths with spotted wings are able to change the color and patterns on their wings so they are better camouflaged among tree trunks that may have become darker from pollution from industry. Many students also believe that repeated use of insecticides like DDT has meant present populations of insects have become

Explanation:

What is the overall net gain of ATP in cellular respiration per one molecule of glucose? between 0-10 between 10-20 between 30-40 between 40-50

Answers

Answer:

C 30-40

Explanation:

The overall net gain of ATP in cellular respiration per one molecule of glucose is - between 30-40 (aerobic respiration)

In aerobic respiration, macromolecules such as glucose break in the presence of oxygen to produce energy.  That occurs in mitochondria. The stages of aerobic respiration are glycolysis, the Krebs cycle, and ETS.  

Glycolysis is the first stage of cellular respiration that is a metabolic pathway of glucose that takes place in the cytosol. Here, the glucose molecule converts into two molecules of pyruvic acid or pyruvate that forms ATP and NADH as energy.

In glycolysis - six ATP molecules are produced.The citric acid cycle is the second stage where In the citric acid cycle, two molecules of ATP are produced.Oxidative phosphorylation of cellular respiration that produces FADH₂ two and eight NADH molecules that produce ATP.

=> Two ATP molecules = one molecule of FADH₂ and, therefore, the number of ATP produced from 2 FADH₂ - 4 ATP.

=> NADH = ATP molecules by each molecule and therefore the number of ATP produced from 8 NADH - 24 ATP.

=> The number of ATP produced from the one glucose molecule under aerobic respiration is given as follows:  

From glycolysis = 6 ATP  

From citric acid cycle = 2 ATP  

From FADH₂ = 4 ATP  

From NADH = 24 ATP  

total               36 ATPs.

Thus, under aerobic respiration 36 molecules of ATP are produced from one molecule of glucose thus, the correct answer would be - between 30 - 40.  

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what is the main purpose of WBC in blood platelets​

Answers

Answer:  You can consult:

They protect you against illness and disease. Think of white blood cells as your immunity cells. In a sense, they are always at war. They flow through your bloodstream to fight viruses, bacteria, and other foreign invaders that threaten your health.

Explanation:

I'm not sure but hope it helps.

Answer:

Explanation:

The cellular portion of blood contains red blood cells (RBCs), white blood cells (WBCs) and platelets. The RBCs carry oxygen from the lungs. The WBCs help to fight infection, and platelets are parts of cells that the body uses for clotting.White blood cells are part of the body's immune system. They help the body fight infection and other diseases. Types of white blood cells are granulocytes (neutrophils, eosinophils, and basophils), monocytes, and lymphocytes (T cells and B cells).

Which of the following cells would be found in xylem tissue?
sieve tube members
companion cells
b. tracheids
d. guard cells
a.
C.
Please select the best answer from the choices provided
Α
В
C
D

Answers

Answer:

D. guard cells.. this is answer i think..

What are the building blocks of proteins

Answers

Answer:

Amino acids

Explanation:

Amino acids

what effect does vitamins have to your body

Answers

Answer:

here is your answer ✔️✔️✔️✔️✔️✔️

Define Translocation

Answers

Translocation; A genetic change in which a piece of one chromosome breaks off and attaches to another chromosome.

Biologycally it is when two chromosomes switch place or sometimes break of and switch position transferring their location.

Do you think people use energy before modern times why or why not

Answers

Answer:

Yes

Explanation:

Before the modern times, energy consumption was vital in order to survive. For example, you need heat (thermal energy) to cook food and also be in a decent state of temperature for your body. If they had be never used energy, the generations wouldn't go on. Energy is our main source of living. Solar energy provides sunlight to plants so they can be grown healthily to provide nutritious fruits and vegetables.

To conclude, yes, people did use energy before the modern times otherwise, they would've not survived.

Before the manufacturing revolution, our energy demands were mediocre. For heat, we relied on the sun. Whenever the sun disappointed us, we scorched wood, hay, and withered dung. Our society's energy use changed forever, even with the low-cost automobile and the expanse of electricity. Energy usage increased rapidly, doubling every decade. The price of energy production was decreasing unwaveringly, and the efficient use of energy was not a concern. Drivers lined up at gasoline stations to purchase gas, and President Jimmy Carter went on television to announce that energy preservation was "the moral equivalent of war." New factory orders had already stopped because of multibillion-dollar price overruns, soaring-high inflation, and a slowdown in electricity demand growth due to the early effects of energy preservation. So I think people used energy before modern times.

please help
What's the role/function of each "organelle" in the cell?
DNA
Mitochondria
Cell Membrane
Nucleus
Chloroplasts
Cell Wall
Large Vacuole

Answers

Answer:

DNA- contains the instructions needed for an organism to develop, survive and reproduce.

Mitochondria- generate most of the chemical energy needed to power the cell's biochemical reactions.

Cell membrane (Animal Cells)- protects and organize cells.

Nucleus- Controls and regulates all cell functions.

Chloroplasts (Plant Cells)- Allows photosynthesis to occur.

Cell Wall (Plant Cells)- Protects the cell.

Large Vacuole (Plant Cells)- providing structural support in plant cells. Also stores nutrients.

Explanation:

Its a bit.. complicated to explain since when learning this all my teacher did was just tell me everything and make me memorize this.

define terms organic molecules and inorganic molecules

Answers

Answer:

Organic molecules are molecules that have non-carbon atoms inside them. And, Inorganic molecules are molecules which don't consist of any carbons at all, unlike organic molecules.

Answer: Organic molecules contain carbon particles in them but inorganic molecules have no carbon particles in them

Explanation:  In organic molecules they contain a carbon-hydrogen bond mostly found or created in humans or living organisms but inorganic molecules contain none of them.

Organic molecules are molecules which are able to decompose due to what they contain e.g  carbohydrates.....

inorganic molecules cant decomposes because they contain no carbon -hydrogen bond.

HOPE THIS HELPSSS!!!!!!!!!!!!!!!!!!!!!!!!!!!

14. Humans have___
chromosomes, while fruit flies have___
Potatoes have___
only
chromosomes.

Answers

Answer: Humans have 46 chromosomes , while fruit flies have 8 , Potatoes have 48 chromosomes

HOPE THIS HELPSS!!!!!!!!!!!!!!!!!!!!

Which type of graph do I use for this data table?

Answers

Answer:

you should use normal Data table only and mark

what macromolecules are found in a hot dog ?

Answers

Answer:

contain nitrites and/or nitrates

Explanation:

The meat is comprised of beef, pork, or turkey, which are all forms of protein (again, amino acid polymers). There is also a fair amount of fat (animal fat tends to be in the form of triglycerides) and some degraded genetic material from the original organism now being turned into food. :) In addition to these things, the hot dog may contain some food coloring and will likely contain some preservatives - a common preservative for meats (to prevent botulism and rancidity) is sodium nitrite

What are the advantages of classification?

Answers

Answer:

It makes the study of different kinds of organisms much easier. It tells us about the inter-relationship among the various organisms. It helps to understand the evolution of organisms. It helps environmentalists to develop new methods of conservation of plants and animals.

Describe the different types of corrections in a scatterplot

Answers

When we look at scatterplot, we should be able to describe the association we see between the variables. A quick description of the association in a scatterplot should always include a description of the form, direction, and strength of the association, along with the presence of any outliers.

Which information did Millikan contribute to the understanding of electrons?(1 point)

He determined that electrons do not move in specific orbits around the nucleus.
He determined that electrons do not move in specific orbits around the nucleus.
He determined that electrons absorb or release specific amounts of energy.
He determined that electrons absorb or release specific amounts of energy.
He determined the ratio of mass to charge for electrons.
He determined the ratio of mass to charge for electrons.
He determined the amount of charge on an electron.

Answers

Answer:

Explanation:

He determined the amount of charge on an electron

Explanation:

He determined the amount of charge on an electron

The information which Millikan contributed to the understanding of electrons is: D. He determined the amount of charge on an electron.

An atom can be defined as the smallest unit which comprises the matter that forms all chemical elements. Thus, atoms are typically the fundamental building blocks of matter and as such determines (defines) the structure of a chemical element.

Generally, atoms are typically made up of three (3) distinct particles and these are;

Protons.Neutrons.Electrons.

Electrons can be defined as the subatomic particles of a chemical element that are negatively charged and as such are having a magnitude of -1.

Robert Andrew Millikan was born on the 22nd of March, 1868 in Illinois, United States of America. He was an experimental physicist who got honored with a Nobel Prize in 1923 for his outstanding work in the field of physics, which included the following;

The study of the photoelectric effect.The measurement of the elementary electronic charge of a single electron.

This ultimately implies that, Robert Andrew Millikan using an electric field with a small oil-drop determined the magnitude of an electron's charge.

In conclusion, the information which Millikan contributed to the understanding of electrons is determining the amount of charge on an electron.

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