Answer:
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The introduction of Caulerpa, also known as killer algae, into California was ultimately the result of _______.
a. hull fouling
b. the aquarium trade in exotic, nonnative aquatic species
c. intentional release
d. an algae farming company
Answer:B
Explanation:
Study the diagram. Two balls are rolling down ramps. What force causes the balls to continue on their paths down the ramp?
Answer:
gravity
Explanation:
Stem cells can make many copies of themselves through the process of ________. This process results in daughter cells that are ____________ the parent cells. The unspecialized cells can become specialized through the process of _______________.
Answer:
Explanation:
1. mitosis
2. clones
3. differentation
Stem cells can make many copies of themselves through the process of mitosis, which is a type of cell division.
What are stem cells?Stem cell are undifferentiated cells that produce specialized cells and their initial division results in daughter cells that are clones of the parent cells.
The unspecialized cells can become specialized through the process of differentiation.In conclusion, stem cells can make many copies of themselves through the process of mitosis.
Learn more on stem cells here:
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In grapes, the wild-type DND1 gene confers resistance to attain viruses, and strains are susceptible to viruses. The EDS1 gene confers resistance to powdery mildew, a type of fungal infection. The genes are linked, eight map units apart on chromosome 17. A third gene, IR 1. imparts resistance to certain lepidopteran leafminers and is 10 map units from EDS1 and 18 map units from UNDI The abserved double crossover rate is 0.3%. What is the interference?
a. 37.5%
b. 25.%
c. 62.5%
d. 75%
Answer:
I = 62.5%
Explanation:
Available data:
the wild-type DND1 gene confers resistance to attain viruses. Strains are susceptible to virusesThe EDS1 gene confers resistance to powdery mildew, a type of fungal infection The genes are linked, eight map units apart on chromosomeA third gene, IR 1. imparts resistance to certain lepidopteran leafminers and is 10 map units from EDS1 and 18 map units from DNDIThe observed double crossover rate is 0.3%According to this information, we can picture the position of each gene in the chromosome
---DND1----------------------EDS1-----------------------------------IR1---
║---------- 8MU---------║------------------10MU-------------║
║------------------------------18MU------------------------------║
The map unit is the distance between the pair of genes for which one of every 100 meiotic products results in a recombinant product.
1% of recombinations = 1 map unit = 1cM. The maximum recombination frequency is always 50%.
So, if we know the distances between genes, we know their recombination percentages.
DND1-EDS1 = 8 MU = 8% recombinationEDSI-IR1 = 10 MU = 10% recombinationTo calculate interference, first, we need to know the coefficient of coincidence, CC.
CC= observed double recombinant frequency/expected double recombinant frequency
Note:
observed double recombinant frequency=total number of observed double recombinant individuals/total number of individuals expected double recombinant frequency: recombination frequency in region I x recombination frequency in region II.CC= (0.003)/(0.08 x 0.1)
CC=0.003/0.008
CC=0.375
CC = 37.5%
The coefficient of interference, I, is complementary with CC.
I = 1 - CC
I = 1 - 0.375
I = 0.625
I = 62.5%
Protects the seed. Grows around the seed.
PLEASE HURRY I WILL MARK BRAINLIEST
A scientist has discovered an unidentified organism. The cell theory states that which of the following must be true about this new living thing?
A. Its cells come from preexisting cells.
B. All its cells have different functions.
C. It is not made up of cells.
D. All its cells are considered non living
Answer:
A
Explanation:
All living things can produce and divide from preexisting cells.
GIVING 2000 PTS AFTER U ANSWER IT MUST BE CORRECT A stalled front (not moving) that may bring many days of clouds and precipitation is a(n)____________.
Question 1 options:
cold front
warm front
occluded front
stationary front
Question 2 (1 point)
Saved
An air mass, shown in the image above, that forms over parts of Mexico, Texas, and Arizona will be a _______.
Question 2 options:
continental polar air mass
continental tropical air mass
maritime polar air mass
maritime tropical air mass
Question 3 (1 point)
Saved
Prevailing westerlies are global winds responsible for most weather in our region of the United States moving from west to east.
Question 3 options:
True
False
Question 4 (1 point)
What causes a land breeze at the beach?
Question 4 options:
At night, cooler air over land replaces rising warmer air over water.
At night cooler air over water replaces rising warmer air over land.
During the day, cooler air over land forces warmer air over water to rise.
Question 5 (1 point)
Based on the weather map above, which statement is true based on the weather map?
Question 5 options:
A warm front is moving toward South Carolina.
A warm front just passed through South Carolina.
It is currently raining in South Carolina.
The next few days in South Carolina should be colder.
Question 6 (1 point)
Saved
Which type of local wind is illustrated in the image above?
Question 6 options:
Global wind
warm wind
land breeze
sea breeze
Answer:
1) stationary front 2) Continental tropical air mass 3) False, that would be trade winds 4) At night cooler air over water replaces rising warmer air over land. (option b) 5) there aint no map mayne 6) again aint no picture
Explanation:
jus trust. looked it up
I am one of four main types of tissue. I join, protect, and support organs. What kind of tissue am i
Epithelial tissue
Muscle tissue
Nervous tissue
Connective tissue
Answer: The connective tissue
Explanation:
How can we get bacteria off of us
Answer:
by washing ourselves with soap
Why would an aquatic organism need a contractile vacuole?
Answer:
Contractile vacuoles protect a cell from absorbing too much water and potentially exploding by excreting excess water. Wastes, such as ammonia, are soluble in water; they are excreted from the cell along with excess water by the contractile vacuoles
Explanation:
Hope it helps!
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In a wave, what is a distance between two crests or two troughs called?
is the distance between two crests or two troughs.
Answer:
the distance between 2 crests & 2 troughs is known as wavelength
Explanation:
Answer:
Wavelength
Explanation:
PLATO trust me
Explain what is meant by the statement, "Cells are very different, yet very similar."
Write it in 125 words
In eukaryotes transcription takes place in the _________. translation takes place in the ________.
1. cytoplasm/cytoplasm
2. nucleus/cytoplasm
3. nucleus/ribosomes
4. ribosomes/nucleus
Answer:
3
Explanation:
The correct answer will be option-Transcription takes place in the nucleus, and translation takes place in ribosomes.
The regulation of genes is regulated and controlled by two main processes of central dogma called transcription and translation.
Transcription is the process of formation of messenger RNA or mRNA from a single strand of DNA whereas translation is the formation of protein from mRNA.
This process takes place in different sites in prokaryotes and eukaryotes. In prokaryotes, both transcription and translation take place in the cytoplasm but in eukaryotes, the transcription takes place in the nucleus whereas translation takes place in the ribosomes present in the cytoplasm.
Thus, the selected option is the correct answer.
Each of the following traits is found in a bipedal hominin EXCEPT: Group of answer choices A c-shaped spine. A bowl shaped pelvis. A femur that angles inwards at the knee. A non-divergent hallux.
Answer:
A c-shaped spine.
Explanation:
The correct answer is - A c-shaped spine.
Reason -
A c-shaped spine is a trait of Quadri-pedal spine not of bipedal spine.
Duchenne Muscular Dystrophy (DMD) is a sex-linked trait that causes muscular weakness that gets worse as a person ages. Which is most likely true of Duchenne Muscular Dystrophy? A. DMD can only be inherited by females. B. Females with DMD always have a mother with DMD. C. The gene for DMD is located on the X or Y chromosome. D. The gene for DMD is most active in the cells of the reproductive organs.
Answer: C
Explanation:
DMD is s*x linked trait. This means that we have to consider the chromosomes XX and XY. For a male to have DMD, this means the mom must must pass down the allele for DMD. The mom can either be a carrier OR she has to have DMD and the dad can only pass down the Y chromosome. For a daughter to get DMD, this means the dad has to have the allele for DMD and so does the mom. That means that the dad has DMD and the mom can either have DMD or be a carrier. Based off of this logic, we know that the answer isn't B. Because they tell us DMD is s*x-linked trait, it means that the gene for DMD is on the x or y chromosome.
after decomposition in the carbon cycle, put the following steps in order.
- photosynthesis
- fossil fuels or volcanic eruption
- respiration
The correct answer is after decomposition in the carbon cycle, it is first fossil fuels or vulcanic eruption, respiration, and photosynthesis.
Explanation
The carbon cycle is the way that carbon circulates through the atmosphere, oceans, and the Earth's surface and interior through chemical, physical, geological, and biological processes. This cycle is very important because carbon is present in all elements of the Earth. Decomposition is the stage in which organisms (plants and animals) break down and are absorbed by the soil. After millions of years, the carbon contained in these organic wastes becomes the mineral coal that is exploited in mines and extracted for use as fossil fuels, another part of this compound mixes with the processes of the lithosphere and is expelled. in volcanic eruptions. Also, once absorbed by the soil, it feeds the plants that serve as food for different animals that use it for one of their basic processes such as respiration. Once in the atmosphere, the plants absorb carbon again to make their photosynthesis. Therefore, the correct order of the steps of the carbon cycle is Fossil fuels, respiration, photosynthesis.
For a human zygote to become a fetus it must undergo
A) fertilization
B) Cell division by mitosis
C) Cell division by meiosis
D) Recombination
Answer:
B
Explanation:
After fertilization, a zygote undergoes rapid cell division (mitosis) to develop into a foetus
Organisms must have which of the following to make proteins and amino acids
Answer:
The key elements of an amino acid are carbon, hydrogen, oxygen, and nitrogen. Hope it helps
so confused and pls ignore what i marked but pls help
Answer:
B. Meiosis and fertilization
Explanation:
I think the first one is meiosis bc it looks like its producing gametes.
IL. Answer the following:
1. Eucalyptus trees should be planted all along the sewage ponds. Analyse
Eucalyptus
Plz help now plz!!!!!
Answer: X
Explanation:
Because we see 2 X's in the karyotype, that means that this person can only give an X to their son, who is XY.
WILL GIVE BRAINLIEST!
Why do you build up a static charge when you rub your shoes across the carpet?
A. Electrons rub off of your shoes and onto the carpet
B.Electrons rub off of the carpet and onto your shoes
C.Protons rub off of your shoes and onto the carpet.
D.Protons rub off of the carpet and onto your shoes.
Answer:
B.Electrons rub off of the carpet and onto your shoes
Explanation:
what is embryogenesis???
Answer:
Embryogenesis is the development of an animal or plant embryo.
OR
Embryogenesis is the process of development of an embryo from zygote. In embryogenesis, the zygote undergoes repeated cell division through mitosis. The divisions help in the growth of an embryo. Cells undergo differentiation attaining specific shape, size and function. Cell differentiation occurs at specific location resulting in the production of different tissue, organs and organ system.
What causes coral bleaching?(1 point)
High water temperatures boil coral polyps, causing them to turn white in color.
Water acidity and high water temperatures make coral polyps more prone to infection, causing them to turn white in color.
High water temperatures and water acidity cause coral polyps to expel algae, causing them to turn white in color.
Water acidity causes coral polyps to lose their photosynthetic abilities, causing them to turn white in color.
High water temperatures and water acidity cause coral polyps to expel
algae, causing them to turn white in color.
What is Bleaching?This is the process in which a surface is whitened by the removal of its
natural color.
In coral polyps which are found in water, they experience bleaching
through high water temperatures and water acidity.
Read more about Bleaching here https://brainly.com/question/1222498
what are bioactive molecules
Answer:
Bio-active molecules that are basically molecules that are which is produced as a result of microbial activities. These molecules can be in different forms such as enzymes, chemical compounds and organic acids. Some examples are proteases, streptokinases, lipases and pectinases.
I hope this helps you
What are the reactants of glucose?
1 point
Answer:
Explanation:
Food (glucose)
An environmental disruption to an ecosystem occurred when Nutria (a beaver-like animal) was released into the forest near the river. Nutria eat mostly the roots and stems of plants along the banks of rivers, Which of the following would provide evidence that the addition of a Nutria to this forest affected populations
The population of deer in Grand Canyon National Park increased from 4,000 to 65,000 between 1905 and 1920. This increase in deer population was due to a ban on hunting and the low populations of natural predators of the deer.
What changes did the deer in the park most likely experience since 1920?
The deer population likely reached its carrying capacity and ceased growth due to a lack of food.
The deer population likely reached its carrying capacity and ceased growth due to a lack of food.,
The deer population likely reached its carrying capacity but continued to grow due to a lack of predators.
The deer population likely reached its carrying capacity but continued to grow due to a lack of predators.
The deer population likely reached its carrying capacity and ceased growth due to its low reproduction rate.
The deer population likely reached its carrying capacity and ceased growth due to its low reproduction rate.
The deer population likely reached its carrying capacity but continued to grow due to the availability of space.
Answer:
The answer is The deer population likely reached its carrying capacity and ceased growth due to a lack of food.
Explanation:
If 2 white dogs mate and produce a brown puppy what color is dominant
Answer:
When dogs breed, the mother and father each randomly contribute one allele from ... The production of melanin is not always at a steady rate so the tip of a dog's hair ... There are two brown alleles, B (dominant brown) and b (recessive brown). ... color patterns such as piebald, particolor, and extreme white which produce ...
Explanation:
Answer:
well the brown was probably recessive so the white is dominant
Explanation:
I'm not sure
1. Which of the following may not likely be possible when a tall man marries a short woman ?
A) All the progeny may be tall.
B) All the progeny may be short.
C) Some of their offspring may be short.
D) Some of their offspring may be short.
NOTE: EXPLANATION IS REQUIRED.
Answer:
The gene for having a tall stature is a recessive trait. So the man can have only as genotype "aa". The short woman can have instead as genotype either Aa or AA. in the first case, we have both tall and short children while in the second case only short children.
So the answer is A) All the progeny may be tall.