Answer:
It is a seeded vascular plant.
It does not depend on insect pollination.
Explanation:
The complete question is: A scientist has discovered a new plant species in the Amazon rainforest. She tells her fellow scientists that the plant she has found produces a cone. What might they say about how this plant is different from an angiosperm? Its seeds have one or two cotyledons. Its stems' vascular bundles are scattered. It does not depend on insect pollination. It is a seeded vascular plant.
The correct option would be that the plant is a seeded vascular plant and does not depend on insect pollination.
Gymnosperms are the only group of plants that produce cones. They are one of the plant groups that have vascular tissues in the form of xylem and phloem as well as been able to produce seed in the form fo cones. Hence, they are said to be seeded vascular plants.
Gymnosperms also carry out their pollination by relying solely on wind for the transfer of their pollen grain to the female organ. In other words, they do not depend on insect for pollination.
A student is given five samples and told they are lysine (an amino acid), lactose (a disaccharide), insulin (a protein hormone), RNA and fat. The samples are in test tubes marked 1-5, but the student doesn't know which compound is in which tube. The student is instructed to identify the contents of each tube. Base on these data, identify what is in each tube. In her first test, she tries to hydrolyze a portion of the contents of each tube. Hydrolysis occurs in all tubes except tube 3. In the next test, she finds that tubes 1, 2, and 3 are positive for nitrogen but only tube 2 gives a positive result for the presence of sulfur. In the next test the student shows that the compound in tube 1 contains a high percentage of phosphate. In the final test the student shows that compound 5 is hydrophobic. Base on these data, identify what is in each tube. 1 2 3 4 5 A. lactose B. RNA C. lysine D. fat
Answer:
1. RNA 2. Insulin 3. Lysine 4. Lactose 5. Fat
Explanation:
RNA contains both nitrogen and phosphate hence it is the substance in tube 1.
Insulin being a protein contains sulfur hence it is the substance in tube 2.
Lysine does not hydrolyse hence it is the substance in tube 3.
Fat is hydrophobic hence it is the substance in tube 5.
Since lactose does hydrolyse and because the rest have been identified, it must be the substance in tube 4.
Based on these data, each tube is identified as:
tube 1: RNAtube 2: Insulintube 3: Lysinetube 4: Lactosetube 5: Fat1. first testHydrolysis doesn't occur in lysine so, the 3rd tube contains lysine.
2. second testNitrogen is present in Insulin(in amino acids), RNA(in nucleotides), and Lysine. Insulin consists of two polypeptide chains (A and B) which are joined by sulfur bonds. So, 2nd tube contains insulin.
3. third testIn RNA, nucleotides are present which consists of phosphate groups. Adjacent nucleotides are joined together by phosphodiester bonds. So, 1st tube contains RNA
5. 4th testFatty acids are Hydrophobic due to the presence of long hydrocarbon chains. So, 5th tube contains Fat.
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It is difficult to determine a definition for life that is suitable for all situations. Instead of defining life, biologists have decided to _____.
Answer:
Describe the characteristics of life
Which of these statements best describes the role of creativity in science?
A.It helps scientists prove non-observable theories.
B.It helps scientists make conclusions non-testable.
C.It helps scientists give valid scientific explanations.
D. It helps scientists create theories which are universal.
Answer:
i feel like it's A.
Explanation:
Which best explains how the green areas depicted in the image on the left are reflected in the population map on the right?
Populations are greater in fertile areas that are close to freshwater sources, which is why more people live near deserts.
Populations are greater in fertile areas that are close to freshwater sources, which is why more people live near oceans.
Populations are greater in fertile areas that are close to freshwater sources, which is why more people live near mountains.
Populations are greater in fertile areas that are close to freshwater sources, which is why more people live near rivers.
Answer:
D. Populations are greater in fertile areas that are close to freshwater sources, which is why more people live near rivers.
Explanation:
Population is greatly depend on the availability of water. Those areas are densely populated areas where water is present in sufficient quantity as compared to those areas have low population density where water is in low amount. The main reason is that water plays a vital role in our daily life which is used almost in every aspects of life. We can see that deserts have less population due to less water availability and areas attached to the rivers are densely populated due to more water availability.
Answer:
D
Explanation:
Population is greatly depend on the availability of water. Those areas are densely populated areas where water is present in sufficient quantity as compared to those areas have low population density where water is in low amount. The main reason is that water plays a vital role in our daily life which is used almost in every aspects of life. We can see that deserts have less population due to less water availability and areas attached to the rivers are densely populated due to more water availability.
Match each term to its best definition
Reef
?
Area of deposition
Sand dunes
?
Continental deposit of
gravel and sand
Alluvial fan
?
Sand mounds in a desert
Sedimentary dispositional environment
?
Shoreline deposit of sediments
Beach sand
?
Calcareous skeletons from organisms build this wave-resistant structure
Answer:
Sedimentary depositional environment: Area of deposition
Alluvial fan: Continental deposit of gravel and sand
Sand dunes: Sand mounds in a desert
Beach sand: Shoreline deposit of sediment
Reef: Calcareous skeletons from organisms build this wave-resistant structure
Explanation: I finished the test, these were all right. Hope I could help ❤️
IM BEING TIME I need the answer please :(
Answer:
D
Explanation:
As organic materials age up they add up in a horizontal manner from the oldest to the youngest
Answer:
Hey!
Your answer is D!
Explanation:
As we move down on the layers, the age now INCREASES!
So the rock on the top of the rest, IS THE YOUNGEST!!
Hope this helps!
The diagram below shows a magnified view of a cross section of a plant root tip. Four parts of the root and the process that each performs are shown. Which process is directly responsible for root growth in plants?
a. storage
b. absorption
c. transportation
d. cell division
Answer:part c transportation
Explanation:
The process directly responsible for root growth in plants is cell division. So, the correct option is D.
What is Cell division?The process by which a cell divides into two or more daughter cells is called cell division. In relation to the above question, cell division is the mechanism due to which plant roots grow.
The meristematic region, which is in charge of cell division, is designated as part D in a cross-section illustration of the root tip of a plant. The meristem of the root is a unique region where cells continuously divide and differentiate into different tissues, helping the root to expand and mature.
Many tissues of the root, including the epidermis, cortex, and vascular tissue, are composed of distinct types of cells that differentiate when they divide into specialized cell types.
So, the correct option is D.
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Small bronchi are called
Answer:
Explanation:
bronchioles
HIF1α is a key player in angiogenesis. VHL is a protein required for the degradation of HIF1α in the normal oxygen level. Loss-of-function mutations in the VHL gene have been found to promote tumor growth. Please explain why these mutations can promote tumor growth?
Answer:
Explanation:
The VHL gene is a tumour suppressor gene that regulates cell growth and cell death. This gene is also located on chromosome 3. It functions to prevent rapid proliferation of cells. For a person to develop tumor both copies of the gene must be mistake or altered allowing for a loss of function that prevents its from causing degradation of HIF1α in the normal oxygen level as its it normal function. This then allows for the survival of HIF1α that promotes amgiogenesis promoting tumor development.
Having Freckles is dominant (F), and not having is recessive (f). A mother has Ff and a father has ff. If They have a child,which genotype will make their child not have freckles.
Answer:
50 %
Explanation:
Ff x ff
We get Ff, Ff, ff and ff
since we know not having freckles is recessive only "ff" can give us no freckles.
in this case it is 50% will not have freckles. we can do this through a punnent square. I would highly advise you to learn them as they are super easy and a basic of biology
Answer:
Explanation:
hey if any one wnts to make 250 dollars text me all u have have to do are some calss and u only answer couple questions
HURRY 29 POINTS
Which graph best represents the relationship between sustainability and biodiversity?
Answer:
the last graph represents the best about relationship between sustainability and biodiversity.
The third graph represents the relationship between sustainability and biodiversity due to upward movement of the line.
Which graph represent relationship between sustainability and biodiversity?Third graph best represents the relationship between sustainability and biodiversity because in this graph both sustainability and biodiversity increases as the graph goes upward.
So we can conclude that third graph represents the relationship between sustainability and biodiversity due to upward movement of the line.
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If one strand of DNA double helix has the following nucleotide sequence ATCGGTCAAGCTAGG what would the dna complementary stand read
Answer:
TAGCCAGTTCGATCC
Explanation:
In DNA, there are 4 different nucleotide bases. Adenine (A), Thymine (T), Cytosine (C) and Guanine (G).
A (adenine) always pairs with T(thymine) and C(cytosine) always pairs with G (guanine).
If we have the strand:
ATCGGTCAAGCTAGG
We have to pair A with T, and C with G. Therefore, the complementary strand of DNA will be:
TAGCCAGTTCGATCC
If a lunar eclipse occurs tonight, the next lunar eclipse would occur?
Answer:
in 10 years
Explanation: im pretty sure
Answer:
every 2.5 years
Explanation:
One function of the poly-A tail on eukaryotic MRNA sequences is to help the MRNA be transported from the nucleus to the cytoplasm. Prokaryotic mRNA also has a poly-A tail. Choose the best explanation of the prokaryotic poly-A tail.
Answer:
In eukaryotes, it is well known that polyadenylation is required to produce the mature messenger RNA (mRNA) molecule and it provides stability to the mRNA during translation initiation. In prokaryotic organisms, polyadenylation is required for the degradation of the mRNA in a mechanism that involves three steps: endonucleolytic cleavage, polyadenylation and exonucleolytic degradation. Moreover, it is also important to note that no evidence of polyadenylation has bee reported in some prokaryotes including the halophilic bacteria Haloferax volcanic (Slomovic et al. 2005).
Citation:
Slomovic, S., Laufer, D., Geiger, D., & Schuster, G. (2005). Polyadenylation and degradation of human mitochondrial RNA: the prokaryotic past leaves its mark. Molecular and cellular biology, 25(15), 6427-6435.
How does Natural selection apply to yourself as an individual? will mark the brainliest answer
Answer:
Natural selection occurs when some of those traits help some individuals survive and reproduce more than others. That causes their genes to become more common in the population over time, and it's the way species evolve to adapt to changes in their environment.
Explanation:
hope this helps =)
How does the anaphase stage differ in the two phases of meiosis? A. Anaphase I separates sister chromatids and anaphase II separates homologous chromosomes into daughter cells. B. Anaphase I has homologous chromosomes attached to spindle fibres and anaphase II involves separation of these homologous chromosomes. C. Anaphase I separates homologous chromosomes and anaphase II separates sister chromatids into daughter cells.
Answer:
The answer is Anaphase I separates homologous chromosomes and anaphase II separates sister chromatids into daughter cells.
Meiosis is a cell division which results in the reduction of chromosome number by half - from diploid to haploid - in daughter cells. It consists of meiosis I and meiosis II. Meiosis I produces two haploid cells. Meiosis II is analogous to mitosis, so in total, meiosis results in four haploid cells. So, in meiosis, there are two anaphases - the anaphase I in meiosis I and the anaphase II in meiosis II.
In anaphase I, the sister chromatids separate from each other to the opposite sides of the cells. In meiosis I there are 46 chromosomes in duplicate, which are present as pairs of sister chromatids. In anaphase of meiosis II, since the cell is haploid, there are 23 chromosomes in duplicate, which are present as sister chromatids.
hope it helps!
What are immunoglobulins?
Answer:
Immunoglobulin, is a large, Y-shaped protein produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as pathogenic bacteria and viruses.
What are the four main types of carbon based molecules.
Answer:
Lipids, proteins, nucleic acids, and carbohydrates.
Explanation:
These carbon-based molecules make up all organisms and living things. These 4 molecules are the four major types of carbon based molecules
Lipids, proteins, nucleic acids, and carbohydrates are the four main types of carbon based biomolecules.
What are biomolecules ?Biomolecules can be defined as the basic component of all living cell and it is the primary building blocks like Carbohydrates, Proteins, Fats, Nucleic Acids.
Carbohydrates or sugars are the primary energy source of body which are composed of polyhydroxy aldehydes or ketones formed by hydrolysis reaction; It can be monosaccharide, oligosaccharide and polysaccharides.
Proteins are the structural unit and it express character of a gene and synthesized by translation from RNA; It is a polymers of amino acids, can be up primary, secondary, tertiary and quaternary protein.
Nucleic acids are the house of all genetic material of the cell which are up two types namely, deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
Lipids are insoluble substance as it can not dissolve in water, soluble in only in non-polar solvents, include sterols, fat-soluble vitamins, mono-, di- or triglycerides, phospholipids, etc.
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RNA differs from DNA in that RNA:
A. Contains a different sugar molecule
B. contains the nitrogen bass uracil
C. All of the above
Which graph shows the presence of nitrogen-fixing bacteria in the soil
Answer:
2
Explanation:
The graph that shows the presence of nitrogen fixing bacteria in the soil would be graph 2.
Nitrogen fixing bacteria are bacteria that are capable of converting atmospheric nitrogen into plant-usable nitrogen in the soil. The conversion is done in two stages;
1. First, atmospheric nitrogen is converted into ammonia.
2. Ammonium is converted into usable nitrate
Hence, the correct graph is the one in which the amount of atmospheric nitrogen decreases with a corresponding increase in the amount of ammonia. This would indicate the conversion of nitrogen into ammonia which is the first step in nitrogen fixation by nitrogen-fixing bacteria.
Graph 2 represents the presence of nitrogen-fixing bacteria in the soil.
This is because in this graph the concentration of atmospheric nitrogen (N2) is lower and the concentration of ammonium (NH4) is higher. The nitrogen-fixing bacteria converts or fixes atmospheric nitrogen that can't be absorbed by the plants into ammonium or nitrates which can be absorbed by the plants and make necessary amino acids for the body so we can conclude that graph 2 indicates the presence of nitrogen-fixing bacteria in the soil.
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Which products are made from nonrenewable resources? Check all that apply.
a. a soft-drink can
b. lipstick
c. a cotton T-shirt
d. motor oil
e. a wooden table
Answer:
The answer is A, B, and D
Explanation:
Products that are made from non-renewable resources are a can of soda, lipstick and motor oil.
What are renewable and non-renewable resources?Renewable natural resources are those that are renewed in a short period of time compared to the human lifetime. Some examples of renewable resources are:
watersoilorganic matterbiofuelsand wind.Non-renewables are those that are not renewed in a short period of time compared to the human lifespan.
Whit this information, we can conclude that products that are made from non-renewable resources are a can of soda, lipstick and motor oil.
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How are viruses different from Bacteriophages?
Answer: It's different because it is a bacteria eater.
Explanation: A bacteriophage is a type of virus that infects bacteria. In fact, the word "bacteriophage" literally means "bacteria eater," because bacteriophages destroy their host cells. All bacteriophages are composed of a nucleic acid molecule that is surrounded by a protein structure.
Hope this helps! Stay safe :))))
Answer:
Even bacteria can get a virus! The viruses that infect bacteria are called bacteriophages.
Explanation:
A bacteriophage is a virus that infects bacteria.
A bacteriophage, or phage for short, is a virus that infects bacteria. Like other types of viruses, bacteriophages vary a lot in their shape and genetic material.
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can one of y'all pick a body of water for me please? It can be any lake, river, bay, whatever. Please pick one that's easy to research biology questions like salinity and how the sun affects the species living in it. this is so I don't fail biology but I am anyways hahahahahahahahahaha please help me...
Answer:
Mississippi River.
Explanation:
Answer:
lake tahoe, calabazas creek... etc
Which statement about enzymes is true?
Answer:
Enzymes are globular proteins made of long linear chains of amino acid that fold to produce a dimensional molecule.Enzymes are bio catalysts that speed up the biochemical reaction and are not changed during the reaction
Answer:
Explanation:
Enzymes are protein ordained catalyst which speed up reaction s in a living organism and they work under a given temperature and pH depending on the function
Are all genes that are passed on advantageous? Why or Why not?
Answer:
no because certain genes could be bad and negatively affect the thing with those genes
Which best describes the scientist who contributed to our current body of knowledge?
Answer: People of all races
Explanation: People all over the word have done experiments and made observations that have contributed to what we now know
APEX :)
Which of the following organisms exhibit cell differentiation?
Answer:
Dogs
Explanation:
Dogs, being a multicellular organism it undergoes cellular differentiation. Cellular differentiation is a process whereby one type of cell changes to other type and performs different activities
Hope I helped
What subject does Biomedical science fall under?
Answer:
a biomedical science degree, you will usually need five GCSEs (A-C) including maths and English, plus three A levels, preferably including biology and chemistry. Certain level 3 qualifications may be acceptable such as the diploma in applied science
Why do you think the pace of the development of society is not equal everywhere?
Write in four points.
The correct answer to this open question is the following.
These are the four points that explain the reason why the pace of the development of society is not equal everywhere.
1.- Education. Formal education is of the utmost importance in societies that are considered developed or part of the first world. On the other hand, lack of education is a major reason why people stay ignorant and progress is minimum. Governments must invest in a good public education system with opportunities for all.
2.- Infrastructure. If the country cannot cover the necessities of its citizens, it would be more difficult to develop the kind of infrastructure that allows growth for the nation. This means poor means of communication, poor road conditions, lack of trade systems, poor health services, and limited resources to create jobs in industries.
3.- Culture. People's idiosyncrasy has a lot to do with the way they think and behave. This directly impacts the way people see life, personal progress, ambitions, and aspirations.
4.- Location. Often, geographical location limits the progress and development of a country. For instance, Middle East countries have a problem accessing water resources. Or countries that have geographical features such as mountain ranges or deserts that limit communication and trade with other countries.
The pace of development of society is not the same everywhere, because geography, economy, natural resources and technological development are not the same, these being important points for the development of a society.
What is Social Development?Social development is an important factor found in society, capable of changing its social and economic course, so that the increase in social development means an increase in human capital and in social capital itself, moreover, it means more than a quantitative issue. , but also something qualitative.
With this information, we can conclude that pace of development of society is not the same everywhere, because geography, economy, natural resources and technological development are not the same, these being important points for the development of a society.
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If we are in a pool submerged in water and someone shouts from outside, do we hear the sound? What happens on your tour? What phenomenon occurs?
