Removing a flower’s stigma would initially affect
Answer:
Pollination.
Explanation:
Removing a flower’s stigma would initially affect pollination.
Removing a flower’s stigma would initially affect pollination.
The stigma is found in the pollen-bearing part of the flower, which is called the “gynoecium”. The stigma’s primary purpose is to pull pollen grains out of the air using its sticky tip in order to reproduce.
If a flower does not have an anther or stigma, then the flower may be cross-pollinated. Cross-pollination occurs when pollen from one flower fertilizes the pollen of another flower. In other words, pollen from one plant fertilizes pollen from another plant.
When the stigma is taken off before pollination occurs, then the pollen grains do not collect in the receptive area of the flower.
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Which event happens during mitosis of an animal cell?
A. The cell divides its nucleus into two new nuclei.
B. The cell grows larger in size to prepare for duplication.
C. The cell produces structures, such as centrioles, to help with the division.
D. The cell replicates its DNA, which results in the formation of chromosomes.
Answer:
A. The cell divides its nucleus into two new nuclei.
•••“*Pls Help Me*”•••
Answer:
it D
Explanation:
Natural Selection For Biology
Natural Selection For Biology
Natural Selection For Biology
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Answer:
6
Explanation:
it's normal for it to be correct
Please Fill In The Blank Words For Biology I Just Attached The File Please Do It And Re Attach The Answers If You Have A Question Ask Me Under My Question Not In Answer Or You Will Be Reported.
Answer: The following is below.
Explanation: The download has the answers to the blanks. Note that the answers to these blanks are underlined and are in bold so you know which is the activity text and the answers.
Hope this helps! :)
Which of the following is NOT correct? The technique of Southern hybridisation gives information on:
1. Which colonies in a transformation experiment contain the gene of interest
2. The length of repeat sequences in the technique of DNA fingerprinting.
3. Where a gene sequence is located within a cloned DNA sequence
4.The number of specific genes in a genome coding for a particular protein.
5. The nature of the proteins made as a result of gene expression.
Answer:
2
Explanation: i did it
Brainstorm a list of traits for which there might be genetic variation in this clutch of owls.
Answer:
Length of beaks, colour of feathers, eye colour, length of legs, larger body (genetically easier to put on muscle), body more adapted to flight (lighter body, larger wings etc.)
Explanation:
List of traits for which there might be genetic variation in clutch of owls are:
Color of feather.Color of eyes.Size of the beak.Shape of feet.What is genetic variation ?Genetic variation is the presence of differences in sequences of genes between individual organisms of a species.
Genetic variation occurs due to crossing over and can cause the clutch of owls to be different from each other.
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Which THREE choices describe how DNA and RNA lead to the expression of information within the cell?
Answer:
Replication, Transcription, and Translation
Explanation:
Replication, Transcription, and Translation are the three main processes used by all cells to maintain their genetic information and to convert the genetic information encoded in DNA into gene products, which are either RNA's or proteins, depending on the gene.
Your class is learning about genetic engineering and the use of model organisms. You are divided into groups to debate this topic. Construct a statement against the use of model organisms, such as the zebrafish, in this research. (3 points)
WILL GIVE BRAINLIEST PLEASE PLEASE PLEASE WRITE A PARAGRAPH AT LEAST
Answer:
Zebrafish is named from two different organisms of fish and zebra has been named this because they have the same similar features the two organisms. anation:
Classify each example or description into the correct evolutionary mechanism.
Female peacocks tend to
choose males with very large
tail feathers. The males with
small tail feathers do not get
to mate very often
Orangutans colonize an
island. After a few
generations, there is a
high incidence of albino
orangutans on the island
One allele becomes
another allele
A number of red beetles move
from an abandoned building
to the nearby woods. The
frequency of the red alele in
the woods increases
A large fraction of a
population is eliminated
at random
Many years after a
radiation spil researchers
document new and different
phenotypes in the nearby
fox population
Disease alleles move
between European
populations
Individuals of
population have unedua
chances areproducing
thank
Among evolutionary mechanisms, there can be mentioned non-random matings (1 and 8) , mutations (3 and 6), genetic drift (2, 4 and 5), and genetic flow (7).
What are evolutionary mechanisms?These are different mechanisms that change allelic frequencies and genotypic frequencies conserning the expected ones if populations were under Hardy-Weinber equilibrium.
When these mechanisms are going on, populations evolve.
Among them, we can mention,
Non-random matings Mutation Genetic drift Genetic flowIn the attached files you will find a better explanation about evolutionary mechanisms
Examples classification,
1) non-random matings
2) Genetic drift - founder effect
3) Mutation
4) Genetic drift - founder effect
5) Genetic drift - bottleneck effect
6) mutation
7) Genetic flow
8) Non-random mating
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I need help please before 12
Answer:
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How is information contained within a molecule of DNA?
Answer:
DNA stores biological information in sequences of four bases of nucleic acid.
Explanation:
— adenine (A), thymine (T), cytosine (C) and guanine (G) — which are strung along ribbons of sugar- phosphate molecules in the shape of a double helix.
Answer:
Genetic information is carried in the linear sequence of nucleotides in DNA. Each moleculeof DNA is a double helixformed from two complementarystrands of nucleotides held together by hydrogen bonds between G-C and A-T basepairs.
how does grass affect the movement of water?
Answer:
Even turf grass lawns restrict water flow into the ground and actually become nearly as impervious as paved surfaces because of turf grass’s densely-matted root structure. During and after a rainstorm, water rushing off impervious surfaces can be significant. This water is called runof
What is the difference between weathering and erosion? Edgenudity
Answer: The main difference between weathering and erosion is that weathering is a long term process, but in contrast, erosion is a short term process.
[tex] \huge \mathbb \blue{HEY \: THERE}[/tex]
The differences between weathering and erosion are:===============[tex] 1^{st}[/tex] difference ==============
Erosion:
It is the displacement of solids by wind,water and Ice.Weathering:
It is the decomposition of rocks, soil and minerals by direct contact with the atmosphere.================[tex]2^{nd}[/tex] difference ============
Erosion:
The eroded materials are displaced.Weathering:
The weathered materials are not displaced.==================[tex]3^{rd} difference[/tex] ===============
Erosion:
The different types of erosion are wind,water,ice, thermal and gravity erosion.Weathering:
The the different types of weathering include physical, chemical and biological weathering.====================================================
Examples of weathering:Atmospheric FactorsAir Pressure Examples of erosion:Wind WaterIceHuman activities[tex] \huge \mathbb \blue{HOPE \: IT \: HELPS}[/tex]
When one organism is helped and has no effect on the other, the relationship is called __________.
Question 4 options:
competition
mutualism
commensalism
adaptation
Answer:
competition
Explanation:
find the organism
How long does humans know that long gone animals have been on earth?Explain why or why not?
Answer:
Fossils
Explanation:
By using fossils we can not only know that extinct animals once roamed the planet, but also get an estimate of when they did so. We can use fossils to pin down their location (which we can use to see what might have killed them, resource loss, climate change, human interaction, etc.), to see when they appeared and went extinct (thanks to rock layers and knowledge of geology), and even what may have been in their diets (based on location or.. well, other pieces of evidence, if you know what I mean.) Fossils also give you their size and shape which can help paleontologists determine the type of animal, ex. birdlike, reptile, mammal, etc.
What does water quality mean?
- Factors that affect water quality. Explain how they affect water quality and the
ideal level for each.
- Temperature:
- pH:
- Dissolved Oxygen:
- Nitrates and Phosphates:
- Turbidity:
- Bioindicators:
Which of the following flood mitigation techniques might a city use? Select the two correct answers.
A. Restricting new homes from being built on the floodplain
B. Building homes on the perimeter of the floodplain
C. Building homes in the middle of the floodplain
D. Relocating existing homes off of the floodplain
E. Relocating animals off of the floodplain
The flood mitigation techniques a city can use are
Restricting new homes from being built on the floodplain Relocating existing homes off of the floodplainWhat is Flood plain?Flood plain is a flat area of land or bottomlands that is adjacent to a river which flow from the river banks of it's channel to the base of the valley.
Therefore, The flood mitigation techniques a city can use are
Restricting new homes from being built on the floodplain
Relocating existing homes off of the floodplain.
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Which reaction is endothermic?
Answer:
Endothermic reactions are chemical reactions in which the reactants absorb heat energy from the surroundings to form products. These reactions lower the temperature of their surrounding area, thereby creating a cooling effect.
Explanation:
Nick's diet consists mainly of fish. Which of the following is the major food nutrient in his diet?
Over 300 years ago, people believed that rats formed from garbage that collected in the streets of a city. Piles of trash were placed in
the streets and within days, rats appeared. Evaluate the statements below and select those that correctly describe this theory about
the origin of life. Select ALL that apply.
Answer:He is putting a common misconception to rest. He is trying to get the reader's attention. He is addressing his concern in a serious way.
Explanation:
help a brotha
preciate it if you help
Answer:
the answer for number 1 is substitution because it CHANGES the amino acids.
Explanation:
Which of the following best describes how crossing over occurs during meiosis?
During prophase I, homologous chromosomes are lined up and pulled apart to opposite poles.
During prophase II, sister chromatids trade places with each other before metaphase begins.
During prophase I, segments of chromatids are exchanged between homologous chromosomes.
During prophase II, spindle fibers begin to form, attaching chromosomes together.
During prophase I, segments of chromatids are exchanged between homologous chromosomes.
What is crossing over?Crossing over is the exchange of chromatid segments between homologous chromosome pairs during the early stages of meiotic division.
Crossing over occurs after the pairing of chromosomes to form tetrads at prophase I of meiosis I.
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What is the effect of the mutation for sickle cell anemia
Answer:
blood cell rupture, anemia, recurring pain, immunodeficiency, organ damage, and early death.
Explanation:
Diabetes is the result of insufficient glucose uptake by the cells from the blood. Two patients were tested for diabetes by measuring their blood glucose levels after eating. Determine the best type of graph and plot the data presented in table 6
Time after eating (hours)
0, 0.5, 1, 1.5, 2, 2.5. 3, 4
Glucose in mg/dl Person A
75, 170, 155, 150, 140, 130, 120, 105,
Glucose in mg/dl Person B
70, 170, 200, 260, 255, 245, 230, 200
Answer:
ExplanationQual desses eventos ocorre durante a replicação do DNA?
A DNA polimerase sintetiza uma fita complementar a partir de uma, mas não de ambas as
fitas originais.
A DNA polimerase sintetiza uma fita complementar de cada uma das fitas originais.
A DNA ligase quebra uma das fitas originais, e outras enzimas remontam os
componentes em uma nova fita,
a DNA ligase separa ambas as fitas originais e outras enzimas remontam os
componentes em duas novas fitas.:
Im giving 30 points please give correct answers. Research the industrial revolutions in the 1800s. the evaluate the following claim the industrial revolutions led to a dramatic population explosion. construct a argument to support or refute the claim using evidence from your research.
Answer:
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Explanation:
What activity is the main cause of smog?
O CFC use in spray cans
O fossil fuel use in automobiles
O release of ozone by factories
O pesticide use on farms
Answer:fossil fuel use in automobiles
Explanation:
what are normal problems that animals in malacostraca face ?
Answer:
Food and feeding. Malacostracans consume virtually every available kind of organic matter, plant or animal, living or dead. The small- to medium-sized animals primarily consume detritus and plankton, and some parasitize other aquatic organisms.
I need help with this please
Answer:
The lungs look like smokers lungs on the right
What moves forward through a wave?
A. wave trough
B. energy
C. water molecules
D. sea life
(ASAP thanks)!
Answer:
B
Explanation: