In a flower, the anther is attached to filament. What advantage does the filament provide to the anther?
A. The filament elevates the anther to allow for easier transport of pollen by wind or
insects.
B. The filament provides the anther with nutrients to produce pollen grains.
C. The filament protects the anther from harsh sunlight and insects.
D. The filament produces a sticky surface to allow the anther to capture pollen.
Answers
Answer:
Stamens are the male reproductive organs of flowering plants. They consist of an anther, the site of pollen development, and in most species a stalk-like filament, which transmits water and nutrients to the anther and positions it to aid pollen dispersal.May 6, 2004
Explanation:
:D
Related Questions
All of the following are differences in transcription, RNA processing, and translation between prokaryotes and eukaryotes except _______. View Available Hint(s) All of the following are differences in transcription, RNA processing, and translation between prokaryotes and eukaryotes except _______. the promoters in prokaryotes have a -35 and -10 box while in eukaryotes they are variable but have a TATA box from the transcription initiation site there is a single RNA polymerase in prokaryotes while eukaryotes have multiple RNA polymerases the mRNA goes through extensive modifications such as addition of a poly tail and a 5' cap in eukaryotes but not in prokaryotes the sigma factor associates with the promoter region in prokaryotes but in eukaryotes there are many basal transcription factors
Answers
Answer:
the mRNA goes through extensive modifications such as addition of a poly tail and a 5' cap in eukaryotes but not in prokaryotes.
Differences:
- the promoters in prokaryotes have a -35 and -10 box while in eukaryotes they are variable but have a TATA box from
- the transcription initiation site there is a single RNA polymerase in prokaryotes while eukaryotes have multiple RNA polymerases
- the sigma factor associates with the promoter region in prokaryotes but in eukaryotes there are many basal transcription factors
Explanation:
Ribosomal and transfer RNAs are processed both in prokaryotic and eukaryotic organisms. However, mRNA is only processed in eukaryotes. In eukaryotic cells, mRNA processing involves:
1. Capping at the 5' end. This process has several functions including regulation of nuclear export, prevention of eukaryotic mRNA degradation and promotion of translation.
2. Splicing in order to remove introns and conserve coding exons. Splicing helps to increase the diversity of the eukaryotic mRNAs (and therefore eukaryotic proteins)
3. Polyadenylation by the addition of a poly(A) tail at the 3' end. The poly(A) tail makes the eukaryotic mRNA molecule more stable and also prevents its degradation by exonucleases.
general characteristics of tissue
Answers
Answer:
1: Epithelium
2: Connective tissue
3: Nervous tissue
Explanation:
Answer:
We have four major tissues the epithelium tissue, the muscle tissue ,the connective tissue and the nervous tissue . The Epithelium covers the body surface and lines body cavity .The muscle provide movement .The connective tissue support and protect the body organs .The nervous tissue provides a means of rapid internal communication by transmitting electrical impulses.What is the function of the circulatory system. I forgot!
Answers
Answer:
to pump blood throughout the body
Answer:
to pump blood throughout the body
Explanation:
The circulatory system contains of arteries and veins that help blood travel throughout the body
1. A customer from a previous season comes into your store confused. A
bed of pink four o'clock flowers she planted the previous season self-
seeded and produced a mixture of about 1/4 red, 1/4 white, and 1/2 pink
flowers this year. The customer wants to know why the pink flowers are
now a mix of colors. This is possible because of ...
*
Answers
Answer:
The genes in flowers vary and change every season a little bit if they are not the perfect "pink" or "red" seed gene they will vary.
Hope this helps :)
What is compensation point ?
Answers
The Compensation Point is the point at which Photosynthesis and Respiration are in balance, so (in a perfect world) the amount of oxygen being produced by photosynthesis will just balance the amount being used by respiration. At this point there will be NO oxygen bubbles being produced in the leaf discs.
➜ When the rate of photosynthesis is equal to rate of respiration, it is called as compensation point.
The rate of liberation of O2 during photosynthesis is equal to the rate of liberation of CO2 during respiration.Thus, there is no net uptake of gases from the environment.Compensation point is usually reached at dusk and down and on a cloudy day.TRUE OR FALSE: MYCOBACTERIA IS A GROUP OF BACTERIA THAT USED TO BE CLASSIFIED AS ALGAE
Answers
Answer:
I think the answer is TRUE
sorry if im wrong
Explanation:
Answer:
False because it is a bacteria fungus :3
Explanation:
:3
What is the purpose of using integrated pest management?
A) spending more money on pest controls
B)controlling pest
C)there is no purpose
D) protect the environment while controlling pest
Answers
When breathing, which body was part contracts to help expand the lung and relaxes to allow air exhalation?
A. stomach
B. rib cage
C. diaphragm
D. brain
Answers
Answer: C: Diaphragm
Explanation:
A tissue is composed of a group of
Answers
Answer:
Tissue is a group of cells that have similar structure and that function together as a unit. primary types of body tissues include epithelial, connective, muscular and nervous tissues. Epithelial tissues form the covering of all body surfaces , ine body, cavities and hollow organs, and are the major tissues in glands.
A tissue is composed of a group of cells that are determined to play a specific function. The Cytoplasm is a dense gel-like material that is filled within the cell.
What is Cell theory?Cell theory was proposed by M. Schleiden and T. Schwann in 1838. According to them, there are three postulates of cell theory that are as follows:
All living organisms whether plants or animals are made up of cells.A cell is the smallest unit of all living organisms.The cell is the structural and functional unit of life.Cell theory was further refined by German biologist Rudolf Virchow in 1855. According to him, all cells are arising from pre-existing cells. The Cell wall generally protects the cell and it is most commonly found in plants, animals, bacteria, etc.
Inside the cell, there are various organelles present that perform specific functions for the survival of the cells. The nucleus is known as the brain or controlling center of the cell, which transmits genetic information from one generation to the next.
Therefore, each of the above-given term is justified above.
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The number of students in a chess club decreased from 47 to 16. What is the percent decrease? Round
your answer to the nearest percent.
Answers
16 multiplied by 100 divided by 47, since 47 is 100%, how much is 16
TRUE OR FALSE: CYANOBACTERIA IS A GROUP OF BACTERIA THAT USED TO BE CLASSIFIED AS ALGAE
Answers
Answer:
FALSE MY GOOD SIR!!
Explanation:
It was once considered algae but it has been reclassified based on recent research.
Which of the following is an inherited trait?
A. Freckles
B. Being a good reader
C. A birthmark
D. A scar
Answers
Answer:
A. freckles
Explanation:
inherited traits are things you are born with that resemble your parents like freckles, color hair and skin even eyes and other such things
The inheritance of traits depends on the genes, not on the somatic cells. In the given choices, freckles are inherited from parents to offspring.
What are freckles?Freckles are caused by either sun or by genes. The presence of this can be due to the genes carrying it.
Genetics and sun exposure is the main cause of freckles. There are a number of genes involved, and they can interact with one another in lots of different ways.
Somatic variations are not likely to get inherited.
Thus, the correct option is A.
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If sports drinks have a higher solute concentration than blood, what condition may result when you drink them?
Answers
what is the purpose of the great green wall
Answers
seeks to help communities mitigate and adapt to climate change, as well as improve food security.
Answer: The Great Green wall is growing vegetation and restoring a band of land from Senegal to Djibouti to help boost food security, improve health, and create thousands of new jobs and income opportunities for the communities living there.
-v-
How can the efficiency of a system impact the environment, economy and society
Answers
Answer:
l don't konw the equation
The skin cells of an organism are analyzed and cells identified in G1 and have an average of 12 picograms of DNA. In the same organism a cell from gonadal tissues is identified and that single cell contains 6 picograms of DNA. Given this information, which of the following is true about the single gonadal tissue cell with 6pg of DNA?
1. The cell is at the beginning of Prophase I.
2. The cell has already completed meiosis.
3. The cell is not dividing (is in interphase).
4. The cell contains unduplicated chromosomes.
Answers
Answer:
El Rasho Macuin
Explanation:
The statement which is true about the single gonadal tissue cell with 6 picograms of DNA is that the cell has already completed meiosis. So, the correct option is B.
What do you mean by DNA?It is a complex molecule that contains all the information necessary to build and maintain an organism. It stands for Deoxyribonucleic acid. It is considered the genetic material in most organisms.
The skin cells in the G1 phase have an average of 12 picograms of DNA. As the amount of DNA in the G1 phase is 2C, hence 2C = 12 pg of DNA.
Now in the same organism, a cell from gonadal tissue is identified and that single cell contains 6 pg of DNA, which means, the amount of DNA is 6 pg that is C. Therefore, after the completion of meiosis, the cell contains half the amount of DNA as compared to the parent cell in G1.
So, Amount of DNA = C = 6 pg.
Therefore, the statement which is true about the single gonadal tissue cell with 6 picograms of DNA is that the cell has already completed meiosis.
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discuss the types of analysis that were important in the camarena case
Answers
Answer:
que es un poco más 510 510 de de la
what is Sediment pollution?
Answers
Answer:
sediment is considered when rhere is too much of pollution
Eddie dropped a baseball off the roof of his building. The circle graphs below show the ball's energy distribution as it falls. In the graphs, the baseball's potential energy is shown relative to ground level, and the baseball's thermal energy is shown relative to its thermal energy before it was dropped. Put the graphs in order to show the ball's energy distribution as it falls.
Answers
Answer:
Take green peace off 1 by 1
Explanation:
did it
HURRY
2. Identify two advantages of sexual propagation and two disadvantages.
Answers
Answer:
advantages and disadvantages of sexual and asexual reproduction produce Dun natak variation in the offspring the species can adapt to new environment due to variation which gives them a survival advantage a disease is less likely to affect all adventure in a population
7
Select the correct answer from each drop-down menu.
Complete the following sentence using the most appropriate words.
In postmortem analysis, central blood is collected from the _____. This specimen is, however, susceptible to ______.
Reset
Next
Answers
In postmortem analysis, the central blood is collected from the heart. This specimen is, however, susceptible to clotting.
Where does postmortem analysis central blood come from?In situations when femoral samples are not accessible, such as in burned or decomposed bodies, blood may also be taken from central veins, the subclavian vein, or heart chambers for forensic purposes.
Where should blood samples be taken for postmortem toxicological analysis?The femoral vein should be punctured with a 10 mL or 20 mL hypodermic syringe for the greatest results. To maximise specimen volume before sampling, the leg shouldn't be rubbed. Vitreous fluid is frequently taken during forensic postmortem examinations for toxicological study.
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Question;
Select the correct answer from each dropdown menu to complete the following sentence using the most appropriate words.
In postmortem analysis, central blood is collected from the (1). This specimen is, however, susceptible to (2).
(1) options:
peripheral veins
heart
liver
brain
(2) options:
bacterial contamination
clotting
hemolysis
decomposition
There are several buffer systems involved in maintaining blood pH, but one is more important than the others for maintaining acid-base homeostasis in blood. To understand why an acid-base imbalance in the blood results from respiratory depression, you must first identify the major buffer system responsible for controlling blood pH. Which equilibrium reaction is the most important for maintaining acid-base homeostasis in the blood?
Answers
Answer:
The Carbonic-Acid-Bicarbonate Buffer. In animals with lungs, the carbon / bicarbonate buffer system is especially effective. In these animals, the H2CO3 in the blood plasma is in equilibrium with the gaseous CO2 present in the airspace of the lungs, which represents a practically unlimited reserve of CO2 that can participate in the equilibrium.
Explanation:
In the Carbonic-Acid-Bicarbonate buffer system, 3 reversible equilibria take place between the CO2 gas in the lungs and the bicarbonate dissolved in the blood. The bicarbonate ion (HCO3-) can combine with a proton (H +) to form carbonic acid (H2CO3), thus absorbing protons from solution and raising blood pH. Carbonic acid, which can be formed from CO2 and water, can dissociate into H + and HCO3- to provide H + and lower blood pH. Carbonic acid, which can be formed from bicarbonate, is converted to CO2 and water by a very fast enzymatic reaction. CO2, being volatile, can be rapidly eliminated from the body in variable amounts through respiration.In the clinic, the system that is measured for the assessment of the acid-base status is the carbonic / bicarbonate system.
Snowshoe hares have large hind feet that prevent them from sinking into soft snow. Their brown coats turn white in the winter to blend in with the snow. These hares have adapted in order to survive and reproduce in their snowy environment. What is this an example of?
A. fitness
B. overproduction
C. variation
D. competition
Answers
Answer:
A. fitness
Explanation:
Fitness, also known as 'evolutionary fitness', refers to the ability of one species/population/individual to survive and reproduce in its environment. Fitness is a fundamental concept in the evolutionary theory proposed by Darwin, because this concept highlights the importance of natural selection as the key mechanism by which evolution occurs. Fitness can be measured as the success of passing genes associated with specific phenotypic traits to the next generation.
Plants use the sun’s light energy to make their own Choose... , which they need to grow. This is an example of how light energy is converted to a form that can be stored for later use.
Answers
Answer:
plants make their own glucose
what’s a characteristic of precipitation
Answers
Answer:
Precipitation is liquid or solid water falling from clouds to the Earth's surface or formed on different bodies as a result of atmospheric water vapor condensation. Precipitation can be liquid, solid, or mixed. Liquid precipitation includes rain and drizzle.
Which version of energy is more stable due to the release
of energy
a. adenosine triphosphate
b. adenosine diphosphate
Answers
Answer:
b. adenosine diphosphate
Answer:
the answer should be B. Adenosine Diphosphate.
Explanation:
because of how important it is to living organisms it has to be stable energy before release. I hope this helps.
g The transcriptome of humans shows that (select all that apply): Group of answer choices Approximately 2% of the genome is transcribed Protein coding genes represent the vast majority of the total genome sequence that is transcribed A large number of non-protein coding sequences are transcribed Total transcription changes over time in embryonic stem cells
Answers
Answer:
- A large number of non-protein coding sequences are transcribed
- Total transcription changes over time in embryonic stem cells
Explanation:
The transcriptome refers to the totality of RNA molecules (i.e., mRNAs, microRNAs, long noncoding RNAs, etc.) that are synthesized in a given cell type/tissue/development stage. The analysis of human transcriptome has been essential to discover genes and non-coding RNAs expressed at each developmental stage, as well as genes whose expression is associated with human diseases. Next-Generation Sequencing (NGS) information showed that more than 90% of the human genome is transcribed into RNA, especially non-protein-coding sequences (i.e., non-coding RNAs). Moreover, information on the human transcriptome evidenced that global transcription changes occur in pluripotent embryonic stem cells, and these changes are mainly associated with the expression of chromatin-remodeling genes as well as genes responsible to encode the components of the general transcription machinery.
A cleft chin in humans is coded by the dominant allele C. A chin without a cleft is coded by the recessive allele c. A man with a cc allele combination for the trait produces a zygote with a woman with a Cc allele combination for the trait. Which allele combinations could occur in the zygote?
Answers
Answer:
The allele combinations are: Cc, cc, Cc, cc
Phenotypically there is a 50% chance that the child will be born with or without the cleft
The allele combinations that could occur in the zygote is Cc or cc.
What is an allele combination?An identification of the specific alleles found at each of the relevant mouse loci on the two homologous chromosomes (i.e., all allele pairs of a genotype). One or more allele pairs can make up an allele combination.
Genetic linkage is the capacity of a chromosome to transmit alleles that are near to one another as a whole unit through meiosis. Inheritance of traits is also understood by this principle. It is useful in locating the genes that are in charge of characteristics and diseases.
The person is homozygous for the allele if the two alleles are the same. The person is heterozygous if the alleles are different.
Therefore, the zygote may include the allele combinations Cc or cc.
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5. After the ovules are fertilized, what happens to the ovary?
O A. The ovary falls off.
O B. The ovary becomes a flower.
O C. The ovary becomes a seed.
O D. The ovary becomes a fruit.
Answers
After the ovules are fertilized, what happens to the ovary?
O A. The ovary falls off.
O B. The ovary becomes a flower.
O C. The ovary becomes a seed.
O D. The ovary becomes a fruit.
Answer:-D. The ovary becomes a fruit.
Explanation:-The ovaries contain ovules that grow into seeds when fertilized. The ovaries themselves surround the seeds and mature into either dry or fleshy fruits
Breathing is important to humans in order to
Answers
Answer:
Survive
Explanation:
"Everyday functions of the body like digesting your food, moving your muscles or even just thinking, need oxygen. When these processes happen, a gas called carbon dioxide is produced as a waste product. The job of your lungs is to provide your body with oxygen and to get rid of the waste gas, carbon dioxide."
