please help just one question.
Answer: I think the answer is True
How much of Earth is covered in water?
A 50%
B 75%
C 25%
D. 25%
Answer:
B. 75%
Hope this helps Have a nice day
Answer:
B 75%
Explanation:
In simplest terms, water makes up about 71% of the Earth's surface, while the other 29% consists of continents and islands.
B is your best answer
carbon dioxide as hydrogencarbonate ions
Answer:
carbonic anhydrase
Explanation:
is cloud and moisture the same
no, it can definitely get in the cloud
Answer:
I'm pretty sure that clouds and moisture are not the same thing
Explanation:
Help me pls I will give brainliest to the correct answerer. Do as much as you can pls
Answer:
Answer below! : )
Explanation:
Explain 1) The independent variable is the variable the experimenter manipulates or changes, and is assumed to have a direct effect on the dependent variable. The dependent variable is the variable being tested and measured in an experiment, and is dependent on the independent variable. 2) Testing only one variable at a time lets you analyze the results of your experiment to see how much a single change affected the result. If you're testing two variables at a time, you won't be able to tell which variable was responsible for the result. 3) The control group and experimental group are compared against each other in an experiment. The only difference between the two groups is that the independent variable is changed in the experimental group. The independent variable is "controlled" or held constant in the control group 4) Not sure about this one sorry! 5) hypothesizing, observing, and experimenting. 6) This rule says that where you have one situation that leads to an effect, and another which does not, and the only difference is the presence of a single factor in the first situation, we can infer this factor as the cause of the effect. 7) No matter how carefully observations and experiments are performed, it cannot be ensured that every possible factor is the same in every observation. 8) Munsell Charts are used to provide standard descriptions and names of color. 9) Nitrogen, phosphorus, and potassium. 10) Water table, also called groundwater table, is the upper level of an underground surface in which the soil or rocks are permanently saturated with water. 11) Humus significantly affects the bulk density of soil and contributes to its retention of moisture and nutrients. 12) Texture refers to the size of the particles that make up the soil. The terms sand, silt, and clay refer to the relative sizes of the soil particles. The combined portions of sand, silt, and clay in a soil determine its textural classification. 13) The main difference between sand silt and clay is their particle size. Sand particles are larger in size while clay particles are extremely fine, and silt particles are somewhere in between sand and clay particles. Sand, silt, and clay are the main mineral particles in the soil that affect its texture 14) Mineral matter is derived from the constituents of the parent material. Organic matter. The nature and abundance of iron. Moisture content. 15) In some mineral soils aluminum can be dissolved at pH levels below 5.0 becoming toxic to plant growth. Soil pH may also affect the availability of plant nutrients. Nutrients are most available to plants in the optimum 5.5 to 7.0 range. 16) Phosphorus is essential for cell division and growth and promotes plant maturation. 17) Aspect of soil porosity concerns the oxygen found within these pore spaces. All plants need oxygen for respiration, so well-aerated soil is important for growing crops. 18) The ground above the water table may be wet to a certain degree, but it does not stay saturated. The dirt and rock in this unsaturated zone contain air and some water and support the vegetation on the Earth.
I did most of them! I didn't do the "Identify". I hope this helps! : )
Sorry if I wrote a lot!!
How has aids affected the people in Nairobi
Answer:
the greatest effect has been economical as large percentage of individuals are falling ill, hence nobody is working also the health system has been compromised as the high percentage of hiv/aids patients arent allowing for other people to seek madicle assistance
Explanation:
Around ten percent of the adult population of these slums are HIV positive – making them one Kenya's most HIV affected areas. Poor living conditions, extreme poverty as well as a lack of education are main reasons for the spread of HIV/AIDS in the slums of Kenyan capital.
Answer:
HIV mortality in urban slums of Nairobi, Kenya 2003–2010: a period effect analysis;
The global HIV epidemic is one of the worst to affect humanity over the last century [1]. Sub-Saharan Africa (SSA) has borne the brunt of this epidemic where HIV/AIDS has been the leading cause of death in the last decade −1.8 million deaths occurred in the subcontinent from HIV/AIDS in 2010 alone [2].
Explanation:
#CarryOnLearning
What is reproduction?
a. A formation of new traits
b. The process of producing new living things
c. The creation of living things from nonliving materials
d. The ability to make offspring using energy from the sun
Answer:
B
Explanation:
Reproduction is when a living thing mates and is capable of making another living thing. That means it's the process of NEW living things, because it's being created. Hope that helps:)
Answer:
Option B (The process of producing new living things)
Explanation:
Further answer:
reproduction is the process of producing new living things which is possible only in living things (not non-living things)..
animals, plants and humans can reproduce...
Hair color is determined by a single gene with a series of alleles, each resulting in different colors. Black, brown, blond and other hair colors are examples of___?
A. incomplete dominance
B. multiple alleles
C. sex-linked trait
D. polygenic traits
Answer:
dissimilar appearence or properties.
Explanation:
Hair color is not so simple as that. Most traits, especially those as complex as color, are controlled by many alleles at many loci. That's why there are different kinds of brown, blond, and red hair in the population. There is no "hair color gene." A fascinating paper came out a few years ago, identifying dozens of SNPs playing a role in hair and eye color. It's a deep, deep rabbit hole that we have only begun to plunge into.
Why did Paul Newman still feel concerned after the
study of the ozone?
Answer:
Inna Allah Yusmiyu Mayyashao”
After this Dua recites verse 22 from Surah Fatir which is mentioned below 111 times.
Wa maa yastawil ahyaaa’u wa lal amwaat; innal laaha yusmi’u mai yashaaa’u wa maaa anta bimusi’im man fil quboor
19. All species, including humans, possess ____?
Answer:
Cells, From birds to bacteria, we all have cells or are cells, depends.
Answer:
Below! : )
Explanation:
All animals are eukaryotic, multicellular organisms and most animals have complex tissue structures with differentiated and specialized tissue. Animals are heterotrophs; they must consume living or dead organisms since they cannot synthesize their own food and can be carnivores, herbivores, omnivores, or parasites.
Hope this helps! : )
If you reduced three sponge species down to individual cells using a very fine cloth and mixed them together, what would you predict would be the outcome after a period of time? Make sure to identify why, and what proteins are likely responsible.
After a few hours, the cells of each sponge would re-aggregate and form three new sponges.
We can reach this answer because:
The sponge is a multicellular organism with little cell differentiation.The surface of sponge cells has a group of glycoproteins, which allow communication between all the cells in a sponge.These proteins are transmembrane receptors, which emit signals responsible for the cell adhesion process.The cell adhesion process allows the cells in a sponge to regroup if they are separated.In this case, if three sponges had their composition sieved and mixed, the glycoproteins of their cells would allow each sponge to be remade, as there would be communication and a regrouping of the cells of each sponge.
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Which of the following are true regarding ores?
I. Ores can be metallic.
II. Ores can be nonmetallic.
III. Ores consist of minerals.
IV. Materials removed from ores are useful.
A. I, II, III, and IV
ОВ.
II, III, and IV only
C. I, III, and IV only
D. I, II, and Ill only
Answer: its B: I, II, III, and IV
Explanation: i took the K12 test
Explain how scientists use geologic time to determine the age of landforms.
Answer:
scientists have developed four different methods of determining the age of the earth. By using these methods, or a combination of them, the age of geological formations created by past events and even the fossilized bones of prehistoric animals can be determined.
Based on the research done by scientists, the Geologic Column, a graph that illustrates earth age, was developed. The Column, with its names for the epochs and eras of time, illustrates what scientists think was taking place in earth history. The three primary methods are:
Radiation Measurement
Stratigraphic Superposition
The Fossil Record
From these methods of dating, scientists have determined that the earth as we know it seems to be about 4.6 billion years old. It is theorized that the earth got its start as a result of what is called the "Big Bang nearly 6 billion years ago. The Big Bang theory holds that all the planets, stars, solar systems, galaxies, etc., are the result of a huge explosion that sent material speeding through space. As time passed, the gravitational force of larger chucks of material attracted the smaller chunks and formed the galaxies and solar systems we see today.
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Miss Hawaii
What organ system is responsible for Gaseous exchange between external environment and blood
Answer: That would be the Respiratory System.
Explanation:
Answer:
the respiratory system
Explanation:
Which of the following correctly orders events during mitosis?
a) Microtubules organize the chromosomes. The nuclear membrane dissolves. The mitotic spindle attaches to chromosomes.
b) The nuclear membrane dissolves. Microtubules organize the chromosomes. The mitotic spindle attaches to chromosomes.
c) The nuclear membrane dissolves. The mitotic spindle attaches to chromosomes. Microtubules organize the chromosomes.
d) The mitotic spindle attaches to chromosomes. Microtubules organize the chromosomes. The nuclear membrane dissolves.
The answer option which correctly orders events during mitosis is: D. The mitotic spindle attaches to chromosomes. Microtubules organize the chromosomes. The nuclear membrane dissolves.
Mitosis can be defined as a type of cell division (duplication) through which a single or one (1) parent cell produces two (2) genetically identical daughter cells.
In Biology, duplication division refers to a process in which two (2) genetically identical daughter cells produced by one (1) parent cell have the same number of chromosomes as their parent cell.
Furthermore, the correct order (sequence) of events during mitotic division in living organisms include the following:
1. The mitotic spindle (spindle fibers) of microtubules attaches to chromosomes.
2. The chromosomes found in a sex cell are organized by microtubules.
3. The nuclear membrane is then dissolved.
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Answer: it is b
Explanation:
Which of the following values represents the Simpsons Diversity Index for the insect community?
A. 0.16
B. 0.27
C.0.73
D. 0.84
The Simpsons Diversity Index shows the relative abundance of the individual species in the habitat as well as diversity.
What is the Simpsons Diversity Index?The question is incomplete but I will try to help you as much as I can. The term Simpsons Diversity Index shows the relative abundance of the individual species in the habitat it is also a measure of the degree of diversity in species that are present in a habitat.
The values are not shown henece we may not be able to nuerically obtai the value of the Simpsons Diversity Index. A Simpsons Diversity Index close to 1 indicates a high degree of diversity.
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Based on the evidence shown, two objects that have___ electric charges will ___ each other.
Which is a carbohydrate monomer?
glucose
sucrose
glucagon
glycogen
The answer to this question would be Glucose.
Question 13 (5 points)
What percent of energy is passed on to the next trophic level in an ecosystem?
The answer is 10 percent
Which organisms obtain energy from dead or decaying matter? Select two options.
groundhogs
daisies
earthworms
bacteria
humans
phytoplankton
Earthworms and bacteria organisms obtain energy from dead or decaying matter. Thus, the correct option is C and D.
What is organic matter?The term "organic matter" refers to material that contains carbon compounds produced by living things. Lawn trimmings, leaves, twigs, branches, moss, algae, lichens, any animal parts, sewage sludge, sawdust, insects, earthworms, and bacteria are just a few examples of what it includes.
The main decomposers in many ecosystems are fungi and bacteria, which utilise the chemical energy in dead matter and wastes to power their metabolic processes. Detritivores, sometimes known as trash or debris eaters, are other types of decomposers. Typically, these are creatures with several cells, like vultures, earthworms, crabs, or slugs.
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Answer:
C, D
Explanation:
i took the test
what features do root hair cells, epithelial cells, and red blood cells have in common
All of these types of cells have a high surface area-to-volume ratio.
What is the function of RBCs?
Erythrocytes also referred to as red blood cells carry oxygen to your body's tissues. As oxygen is converted to energy, carbon dioxide is released by your tissues. Additionally, your red blood cells carry carbon dioxide to your lungs so you may exhale it.
The process of getting oxygen from your lungs to your body's tissues is carried out by red blood cells. Your tissues use oxygen to make energy and carbon dioxide to expel waste. The carbon dioxide waste is transported to your lungs by your red blood cells, where it is exhaled.
It takes roughly seven days for red blood cells to properly mature and are then released into the bloodstream from the soft bone tissue (bone marrow) of your body. A protein that enables red blood cells to transport oxygen from your lungs and transfer it to other tissues in your body gives them their vivid red color is called hemoglobin.
Therefore, all of these cells have a high surface area-to-volume ratio.
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2
What are the three main things that bacteria need to survive?
ОА
food, water, oxygen
Ов.
dirt, space, heat
Ос.
ice, incubation, oil
OD
fat, liquid, nitrogen
The three main things that bacteria need to survive are dirt, space and heat. Thus option B is correct.
What are bacteria?Bacteria are defined as a creatures without a proper nucleus and only a few organelles that are prokaryotic unicellular organisms.
It can also be defined as the creatures with simpler cells than many others, such as bacteria.
There are five types of bacteria classified on the basis of there shapes.
Spherical shape (Cocci)Rod (bacilli)Spiral (spirilla)Comma (vibrio's) Corkscrew (spirochetes)Three distinguishing characteristics of bacteria are:
Their lack of membrane-bound organelles, Their unicellularity, Their small (often microscopic) size.Not all prokaryotes are bacteria; others are archaea, which, despite sharing some physical characteristics with bacteria, are unrelated to bacteria in origin.
Thus, the three main things that bacteria need to survive are dirt, space and heat. Thus option B is correct.
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which is the biggest planet in our solar system?what colour is it?
Jupiter
The largest planet in our solar system is Jupiter. Its got shades of white, orange, brown and red
Hope this helped you- have a good day bro cya)
please match these for me the last 2 are
-are uses a focused beam of electrons to see details inside small objects
-uses a probe to scan the surface of an object and create an image
PLEASE HELP WITH THIS ONE QUESTION
Answer:
one negative one positive feedback loop
how the respiratory system help me in kicking a ball?
Answer:
Your muscle cells need oxygen so that they can do cellular respiration. when they do that they charge up ATP and then use that to move in accordance to how your brain tells you to.
Glucose molecules bond together in a process known as dehydration synthesis. What happens in this process?
Group of answer choices
The reaction uses water molecules to break the bonds in each glucose.
4 Water molecules are used for every
1 water molecule is lost (OH + H) for every bond formed
4 water molecules are lost from each bond broken
Answer:
In the dehydration synthesis reaction above, two molecules of the sugar glucose (monomers) combine to form a single molecule of the sugar maltose. One of the glucose molecules loses an H, the other loses an OH group, and a water molecule is released as a new covalent bond forms between the two glucose molecules.
Explanation:
i hope this helps anyway
Glucose molecules bond together in a process known as dehydration synthesis. The process includes 1 water molecule is lost (OH + H) for every bond formed. The correct option is C.
What is dehydration?Dehydration is a process of chemical reaction in which water is lost. A water molecule is released during the process of making larger molecules out of smaller monomers, which is known as dehydration synthesis.
In the synthesis process, the glucose monomers are bonded together and with each bond, the water molecule is lost in the process. From monomers of glucose, polymers are formed, like starch, and cellulose.
Polymers are formed through the process of dehydration synthesis. These polymers are DNA, proteins, and carbohydrate.
Thus, the correct option is C. 1 water molecule is lost (OH + H) for every bond formed.
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Over 99.9% of the solar system is composed of hydrogen and helium. How does this help to explain the size differences between the terrestrial planets and the gas giants?
Explanation:
Gas giants/Jovian planets are also called the outer planets, they are made of gases, they are large and less dense, more moons. Terrestrial/Rocky planets are also called the inner planets. They are made of rocky surface, denser than Jovians, and small, little or no moons.
The information about the composition of solar system has great significance in providing data about size between the terrestrial planets and the gas giants planets.
The size differences occur between the terrestrial planets and the gas giants due to the presence of different concentration of gases in their compositions. Gas giants planets are also called the outer planets which are made up of gases.
They are large in size but having less density and more moons while on the other hand, terrestrial planets are made of rocky surface. They are also called the inner planets. They are more denser than gas giant planets, small in size and less or no moons so we can conclude that there is a great size differences between the terrestrial planets and the gas giants.
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Which of the following is an extremely dense form of connective tissue?
Answer:
the breast tissue
Explanation:
Tendons and Ligaments are the extremely dense form of connective tissue.
What are dense connective tissues?Dense connective tissue is also known as dense fibrous tissue which is a form of connective tissue composed mostly of fibers. These fibers are made of type I collagen which are rows of fibroblasts, the fiber-forming cells that make up the fibers, filled in between the collagen strands.
Tendons and ligaments are strong, rope-like structures which is formed by dense connective tissue where tendons connect skeletal muscles to bones, while ligaments connect bones at joints.
Ligaments have more elastic fibers which are more extensible than tendons. This connective tissue is found in the lower layers of the skin known as Dermis, where it is structured in sheets.
Thus, Tendons and Ligaments are the extremely dense form of connective tissue.
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What is ocean sequestration?
Answer:
it is the process by which carbon dioxide is removed from the atmosphere, is achieved through various chemical and biological processes
