Answer:
A. No precipitate is formed.
Explanation:
Hello,
In this case, considering that both calcium chloride and barium chloride are CaCl₂ and BaCl₂ respectively, due to their high polarity by cause of the ionic bond they have between calcium and chlorine and barium and chlorine we say they are highly soluble in water, therefore, A. No precipitate is formed.
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Which of the following is not a main use of fuel? a. transportation c. heating and cooling buildings b. manufacturing d. cooking
Identify TWO environmental problems, other than the loss of biodiversity, that are occurring as a result of global climate change.
Answer:
Ice caps melting, increased heat causing droughts and wildfires
Two environmental problems other than the loss of biodiversity, that are occurring as a result of global climate change. that are occuring as a result of global climate change are as follows:
DesertificationDeforestationMost enviromental problems are majorly caused by climatic change though.
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the combination of chemical reactions through which an organism builds up or breaks down materials as it carries out its life process is called
Answer:
metabolism
Explanation:
if a paper clip weighs 1.0 g how many paper clips would be in a paper clip box that weighs 0.5 kg
Answer:
500g
Explanation:
0.5kg=500g
500/1 = 500g
There are 500 paper clips in a paper clip box that weighs 0.5 kg.
What is a Paper clip?A paper clip may be defined as a type of material that is made up of steel or some other metal, but molded plastic is also used for binding up papers.
Weight of one paper clip = 1.0 g.
Number of grams in 0.5 kg = 500 g.
∴ Number of papers clips in 500 g = 500 × 1.0 = 500 paper clips.
Therefore, there are 500 paper clips in a paper clip box that weighs 0.5 kg.
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Where will you put the decimal point in the number 580000
Answer:
after the last zero
Explanation: because thats where the whole number ends and after that the decimals begin
Which of the following statements about microarrays is false?A. Microarrys enable scientists to to determine the activity of thousands of genes at once.B. Microarrys use flurescently labeled cDNA molecules to identify particular genes expressed at a particular time.C. Microarrys use tiny portions of double-stranded RNA fragments from a large number of genes.
Answer: C. Microarrys use tiny portions of double-stranded RNA fragments from a large number of genes.
Explanation:
A DNA microarray) is a solid surface to which a collection of DNA fragments is attached. The surfaces used to fix the DNA are highly variable and can be made of glass, plastic or even silicone. It involves placing thousands of gene sequences in specific locations on a glass slide called a chip. Microarrays basically miniaturizes processes that have been used in molecular genetics laboratories for years. So, a sample containing DNA or RNA is put in contact with the chip, and it allows the detection of DNA or RNA molecules by hybridization or adhesion of the molecules on the slide. The detection of the DNA or RNA adhered is made by different labels or colors that allow them to be detected under the microscope.
Microarrays are usually used to identify genes with differential expression under different conditions. For example, to detect genes that produce certain diseases by comparing expression levels between healthy cells and cells that are developing certain types of diseases. The matching of the complementary bases between the sample and the gene sequences on the chip produces a measurable amount of light. The areas of the chip that produce this light identify the genes that are expressed in that sample.
Then, in summary, the DNA chips are used to analyze the differential expression of genes, and the levels of thousands of genes are monitored simultaneously. And it measures the level of hybridization between the specific probe (probe) and the target molecule (target), indicated by fluorescence and through an image analysis, which indicates the level of gene expression.
i need this question pls help me
Overall, what types of organisms benefit from the producers that capture energy from sunlight and produce oxygen and sugar?
a-Photosynthetic organisms
b-Organisms that are consumers.
c-Organisms that are producers.
d-Organisms that have chloroplast.
Answer:
A- Photosynthetic Organisms
An amoeba is a unicellular organism.
The statement that an amoeba is a unicellular organism, is True.
What is an amoeba ?An amoeba is a unicellular organism, which means that it is a single-celled organism. They are a type of protist, which are a diverse group of eukaryotic organisms that are not animals, plants, or fungi.
Amoebae are found in moist environments, such as soil, freshwater, and saltwater. They are able to move around by extending their cell membrane and cytoplasm, a process called pseudopodia. They use pseudopodia to capture food and to move to new locations.
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Birds and humans are theorized to have a common ancestor because they have homologous structures. Which evidence best supports this theory? They both have tails and embryos. They each have vestigial structures. They have analogous structures. They have different forms as adults.
Answer:
They each have vestigial structures.
Explanation:
Birds and humans have a common ancestor as they have homologous structures.
Vestigial structures are the organs that have some important functions in the past but now in present, they do not perform any function.
Both humans and birds have vestigial structures such as humans have an appendix and ear pinna and wings of flightless birds such as ostrich.
Hence, the correct answer is "They each have vestigial structures.".
Answer:
They each have vestigial structures.
Explanation:
A scientist hypothesizes that a plant with a thin cuticle will not survive as long without water as a plant with thick cuticle. Explain what the scientist could do to test this hypothesis.
Answer:
To make an experiment where plants with thin cuticle are under two different treatments: normal conditions and water stress conditions
Explanation:
An experiment is a scientific procedure that enables to confirm (or reject) a hypothesis. Thus, it is possible to determine the effects of the cuticle on the survival of the plant by subjecting plants with thin cuticle to two experimental conditions (normal and water stress conditions), which can be used to determine if the differences in plant survival are statistically significant to support the hypothesis (e.g., the key role played by the plant cuticle). Moreover, it is important to note that it is imperative to include a control group in order to contrast with the obtained experimental results (e.g., to include plants with thick cuticle in both treatments).
is a hypothesis always correct? explain
Plants cannot grow without ____. a. rocks c. moss b. soil d. pesticides
The plant cannot grow without soil.
Answer:
B. Soil
Explanation :
When you think about it, soil is what plants live on. Along with water, sunlight, and chlorophyll.
The heart is an example of which level of organization within an organism?
Answer:
An organ.
Explanation:
Follow this extremely helpful flow chart:
Cell ⇒ Tissue ⇒ Organ ⇒ Organ System ⇒ Organism
The heart is an organ because it is a collective of tissue functioning together.
What ribosomes do? Are they found freely floating in the cytoplasm or they are found attached to another organelle? Or both
Answer:
both
Explanation:
RNA is translated into protein on ribosomes. Protein synthesis is the name of this procedure. Large numbers of ribosomes are present in cells because protein synthesis is crucial to them. In addition to being attached to the endoplasmic reticulum, ribosomes also float freely in the cytoplasm (ER). So they re found in both.
What is a ribososme?Ribosomes, also called Palad granules (after their discoverer George Palade, for their granular structure), are macromolecular machinery found in all cells that perform biological protein synthesis (mRNA translation).Ribosomes join amino acids in an order determined by the codons of the messenger RNA (mRNA) molecule to form a polypeptide chain. Ribosomes are composed of two major components, the large and small ribosomal subunits.Each subunit is composed of one or more ribosomal RNA (rRNA) molecules and many ribosomal proteins (RPs or r-proteins).Ribosomes and related molecules are also known as the translational apparatus.The ribosome is a ribonucleoprotein complex because it is composed of a complex of RNA and protein.Each ribosome is composed of smaller (30S) and larger (50S) building blocks called subunits.
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Which describes the paleoanthropology practice of walking the landscape looking for fossils on the surface?
Answer:
The correct answer is : surveying.
Explanation:
Paleo-anthropology is the study of the extinct primates, it is a sub branch of anthropology. It is focused on the human evolution and rise of the sub type of family of the other human or hominids.
Surveying is the one of paleoanthropoolgy practices that involves the finding the fossils of hominids on the surface of all around the globe by walking to compare it and study the evolution of human family.
Thus, the correct answer is- surveying.
Amoeba breathes through its ______is utilized during respiration to release energy.
Answer:
Amoebas "breathe" by allowing oxygen from their aquatic environments to diffuse through their cell membranes.
Explain what the interviewer meant when he said that genetic mutations are like misprints in a book.
Answer:At times parts of the gene can change entirely, leading to alteration of the product. There are many types of gene mutations, but all types of mutation can potentially affect the cell and its function.
Explanation: A publisher can misprint a book in several ways. The publisher can miss words, make spelling erros, mix up paragraphs or delete some text entirely.With these kinds of errors, the text will be inaccurate, and the reader can get confused. Mutations in genes happen similarly.
In the anatomical position, the umbilicus and knees are on the:_____body surface.
Answer:
In the anatomical position, the umbilicus and knees are on the: anterior body surface.
True or false: All chemicals after the lab can be thrown back into its container for reuse.
Answer:
false
Explanation:
chemicals should never be reused because it cam affect the next experiment. always ask your teacher what to do with the materials.
Answer:
False
Explanation:
All chemicals after a lab experiment should be disposed of in the correct way (usually a container that is for hazardous waste). Failing to do so can be very dangerous as they've already been used
Which processes require oxygen
Answer:
so many processes requires oxygen to operate .
An example is the process of plants making their own food .
Answer: So many processes involve oxygen ;
BreathingPhotosynthesisCellular respirationconversion of pyruvic acid to Acetyl CoAproduction of water in the electron transport chain Aerobic MetabolismJust to list a few
Explanation:
-6x-4x+2 need more than one answer
20. Define and give an example of radiation:
Answer:
Radiation is the process of sending energy i. the form of light, heat, or nuclear particles.
An example: Radio waves, or waves produced from your mobile phone.
The influence of biology on the development of technology and engineering
1. Give some of your examples where knowledge from biological science has contributed to the development of some technological processes; 2. List some (for you) famous scientists who have contributed to the development of biological science and applied biological sciences. This should be a research paper in the form of a paper e.g.
Please help,write a lot, everything you know
Answer:Their impact(s) may be beneficial or detrimental depending on how these ... [Some of these technologies are related to the manipulation of biological ... Techniques have been developed to expand both the diversity of nucleotide or ... By the early 1970s, scientists had demonstrated that they could engineer synthetic genes.
Explanation:
Which statement correctly describes a feature of the rock cycle?
Rocks are preserved through the process.
Rocks change from one type to another.
Different rock groups are not related to one another.
Rocks change from one type to another in a specific order.
Answer:
D is wrong, It's B
I got a 100%
Explanation:
The statement 'rocks change from one type to another' correctly describes a feature of the rock cycle.
What does rock evolution mean?Rock evolution is an expression used to explain the physicochemical modifications that a rock suffers across geological time.
Some of these physicochemical processes include, among others, metamorphism, erosion and sedimentation.
In consequence, the composition of rocks may vary across time, and it is a fundamental concept in geology.
In conclusion, the statement 'rocks change from one type to another' correctly describes a feature of the rock cycle.
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Which of the following are adaptations of plants for photosynthesis?
A. thylakoid membranes stacked into grana
B. broad, flat leaves
C. stomata for gas exchange
D. xylem vessels for water transport to the leaves. E. All of these are adaptations for photosynthesis.
Answer:
I think it's (E) but I'm not sure
All the populations in a given area. *
A. population
B. biome
C. community
Is it a complete question??
please someone help in the metric system, what do kilogram, kilometer, and kilocalorie have in common?
Answer:
1.6 Kilometre is about 1 mile.1 metre is about 3 inches longer than one yard.1 kilogram is a little more than 2 pounds28 grams is about the same as one ounce.Ask me for further explanationAccording to the metric system, the common between kilogram, kilometer, and kilocalorie is as follows:
1 kilogram = 1000 grams (g). 1 kilometer = 1000 meters (m). 1 kilocalories = 1000 calories (cal). What is the Metric system?The metric system may be defined as a type of system that involves the weights and measures in which the meter is the unit of length and the kilogram is the unit of weight.
The metric system significantly represents the standard unit of each parameter like length, weight, temperature, distance, capacity, etc.
The kilogram, kilometer, and kilocalorie have their basic unit which is equal to 1000 times their actual one. This is the common among the all.
Therefore, the commonality between the kilogram, kilometer, and kilocalorie is that all have their basic units equal to 1000 times.
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All living things are composed of cells true or false
Answer:
True
Explanation:
everything is composed of cells Dead or Alive
what is the monomer of nucleic acids?
Answer:
Explanation:
he term nucleic acid is the overall name for DNA and RNA. They are composed of nucleotides, which are the monomers made of three components: a 5-carbon sugar, a phosphate group and a nitrogenous base.
Which muscle group supports the entire body?
A) Hips
B) Upper thigh
C) Legs
D) Feet
Answer: I think its hips.
Explanation:
