Answer:
A-Both
B-Unknown but you said it was fine
C- mitosis
Explanation:
Mitosis and meiosis both have interphase, in which dna is replicated (synthesis). B I don’t know, hopefully you can get that one figured out—sorry :(. Meiosis occurs twice, which is why it results in 4 cells (gametes). Hope this helps a little :)
Based on DNA's structure and function, why did Meselson and Stahl
choose to grow E. coli in broths of nitrogen isotopes?
A. The bacteria's phosphate groups would be replaced by the
nitrogen.
OB. The nitrogen would be incorporated into deoxyribose.
C. The nitrogen would influence bonding between base pairs.
D. The nitrogen would be incorporated into the DNA
nucleotides
Answer:
Ecoli has certain istopyes in where the molecules such as carbon dioxide re introduces the carbon molecules therfore ecoli has certain phosphate groups.
Explanation:
What does each daughter cell inherit during binary fission?
A) half the chromosomes of the original cell
B) a unique variation of the parent cell’s primary DNA
C) twice as many chromosomes as the original cell
D) an identical copy of the parent cell’s primary DNA
Answer:
an identical copy of the parent cell’s primary DNA
Explanation:
In this form of cell division, a cell replicates its DNA, increases in size, and divides into two daughter cells. Each daughter cell receives one copy of the replicated parental DNA.
During binary fission (d), daughter cells receive an exact copy of the parent cell's main DNA.
What is DNA exactly?Definition. Deoxyribonucleic acid, commonly known as DNA, is indeed the molecule that contains the genetic information necessary for an organism's growth or operation. The structure of DNA consists of a double helix, which is made up of two linked threads that loop around one another to form a twisted ladder.
Who created the DNA?Many people think that the 1950s saw the discovery of DNA by English physicist Francis Crick & American biologist James Watson. This isn't in fact the case. Rather, Swiss chemist Miescher made the first official discovery of DNA in the late 1860s.
To learn more about: DNA
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SURVIV.IO CODE
5GRV
NOWWW
Answer:
ight im in
Explanation:
Calculate the percentage of viable cells
102/112x100
Answer:
91.07%
Explanation:
Given the expression
102/112 x 100
This can also be expressed as;
= (2*51)/(2*56) * 100
= 51/56 * 100
= 5100/56
= 91.07%
Hence the percentage of viable cells is 91.07%
which of the following describes a hurricane? a- warm front b-cold front c- strong high-pressure system d- strong low-pressure system. ???
pretty please answer!! giving brainliest to the one who is correct first!!!
help its due this Wednesday
Answer:
first food chain:
The Producer: the trees
The Primary Consumers: elephants
The Secondary Consumers: the cheetah
The Scavengers: the termites
The Decomposers or Detritivores: mushrooms
second food chain
The Producer: grass
The Primary Consumers: zebras
The Secondary Consumers: the hyena
The Scavengers: the vultures
The Decomposers or Detritivores: microorganisms
the food web:
The Producers - the trees and grass.
The Primary Consumers – the zebras and elephants.
The Secondary Consumers – the cheetah, hyena.
The Scavengers – the termites, vultures
The Decomposers or Detritivores – mushrooms microorganisms.
If the amount of primary Consumers increases, the number of producers would decrease and the number of other consumers would increase, but after a short time their number would also decrease and it causes immigrations.
Also, there's a nice picture I have found on a site;
What is an immune response?
Answer:
The immune response is how your body recognizes and defends itself against bacteria, viruses, and substances that appear foreign and harmful.
Hope this helps!
PLEASE ANSWER QUICK AND CORRECTLY
what is the complementary strand of DNA to this converted strand?
A-G-G-C-T-A
answers:
1. TCCGAT
2. UCCGAU
3. TTCGAT
4. TUGGCT
Answer:
1
Explanation:
a goes to t c goes to g
Compare salt marshes and mangrove forests and explain why mangrove forests are such critical habitats on high energy coasts.
Answer:
Explanation:Coastal wetlands in the southeastern U.S. provide many important ecosystem goods and services. In addition to supporting important fish and wildlife habitat, they maintain coastal fisheries, store carbon, improve water quality, protect coastlines, and provide recreational opportunities. In many ways, coastal wetlands are dynamic and resilient ecosystems; however, they are being subjected to tremendous environmental change at the regional (e.g., hydrologic alterations, nutrient enrichment) and global scale (e.g., climate change).
One aspect of global change that is expected to have a substantial impact on coastal wetlands is winter climate change. Salt marshes and mangrove forests are common coastal wetland ecosystem types that occupy similar estuarine environments but have different climatic tolerances. In warmer climates, mangrove trees often outcompete salt marsh grasses. However, mangrove forests are sensitive to freezing temperatures, and within the region, mangrove forests are currently found only in Florida, Louisiana, and Texas (though isolated individuals have been reported in Mississippi). Salt marshes are more dominant along colder coastlines where mangroves are not able to survive freeze events. Future climate change is expected to result in increased winter temperatures and, potentially, reductions in the intensity of freeze events which could lead to mangrove forest replacement of salt marsh in parts of the Gulf of Mexico and southeastern Atlantic coast.
From a functional perspective, salt marsh grasses and mangrove trees are foundation species that control ecosystem dynamics and, in stressful and highly dynamic environments, provide the structural properties needed by other species; hence, the ecological and conservation implications of grass-to-tree conversions in coastal wetlands could be large (in both positive and negative ways). Dr. Mike Osland, USGS Research Ecologist and GCPO LCC staffer, along with 4 collaborating scientists, has initiated a study that addresses the following question: how might winter climate change impact the distribution and abundance of salt marshes and mangrove forests in the southeastern U.S.?
Their results begin to illustrate the vulnerability of salt marshes in the southeastern U.S. to mangrove forest expansion and quantify the amount of salt marsh habitat within each state that could be impacted by mangrove forest expansion under various winter climate change scenarios. The preliminary results are striking in terms of the potential for mangrove forest range expansion and coastal marsh displacement in the region. The hope is that these analyses stimulate additional discussion, research, and planning regarding the potential ecological and conservation implications of winter climate change for coastal wetlands in the southeastern U.S.
Answer:
Salt marshes are coastal wetlands found throughout the world on protected shorelines and on the edges of estuaries where freshwater mixes with seawater.
Mangrove forests are those which contain Mangroves which are trees and shrubs that grow in saline (brackish) coastal habitats in the tropics and subtropics.
Explanation:
In terms of plant life, this biome is extremely high in diversity, but there are very few animals that live here.
tru or false?
Answer:
Tundra
Explanation:
i belive its tundra babe
True. The statement "In terms of plant life, this biome is extremely high in diversity, but there are very few animals that live here" accurately describes a tropical rainforest biome.
What is tropical rainforest biome?Tropical rainforest biome is known for its high level of plant biodiversity and relatively low number of animal species compared to other biomes. Tropical rainforests are home to a wide variety of plant species, including trees, shrubs, and epiphytes, but the dense vegetation and high rainfall make it difficult for many animal species to establish themselves.
However, the few species that are able to survive in the rainforest typically have specialized adaptations that allow them to thrive in this unique environment.
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What is required for reactants to form bonds?
Answer:
Energy input is required for the reactants to form bonds.
Eukaryotic gene regulation takes place through the use of RNA-
binding proteins called ________
and
short regions of DNA that help position RNA polymerase called
_________.
At the organism level, ________.
control the differentiation and development of cells during
embryonic development.
Answer:
Hi your answers would be transcription factors, TATA boxes, and homeotic genes
Eukaryotic gene regulation takes place through the use of RNA- binding proteins called transcription factors and short regions of DNA that help position RNA polymerase called TATA boxes.
At the organism level, homeotic genes control the differentiation and development of cells during embryonic development.
Transcription factor:Transcription factors are proteins involved in the process of converting, or transcribing, DNA into RNA. Transcription factors include a wide number of proteins, excluding RNA polymerase, that initiate and regulate the transcription of genes. Regulation of transcription is the most common form of gene control.
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Which formula do you use to calculate acceleration?
Answer:
a = Δv/Δt.
Explanation:
(Acceleration is represented by a)
Acceleration is defined as the change in velocity (v) over the change in time (t).
The structure composed of a sheet of simple squamous epithelial cells that's folded onto itself to form a double layer is a
Answer:
This question lacks options, the options are;
A. parietal layer.
B. serous membrane.
C. nuclear membrane.
D. mucous membrane.
The answer is B
Explanation:
The serous membrane is a covering membrane found in living systems. The serous membrane covers the surfaces of certain structures in the body such as heart, lungs etc. where they secrete lubricants that reduce friction during movement.
The structure of the serous membrane is composed of a sheet of simple squamous epithelial cells (secretes the lubricants) that folds onto itself to form a double layer. The layers are joined by a connective tissue.
__________ give you energy and help you feel satisfied after eating.
Animals, including humans, derive chemical energy from their food to support their metabolism, including their muscular activity.
What is the source of energy from food?The majority of animals get most of their energy via aerobic respiration, which involves mixing carbs, lipids, and proteins with air or water-based oxygen.
Cells release energy from nutrients through the process of respiration. The majority of the time, glucose has already been produced from the food.
Because they work quickly and provide energy as soon as they are taken, carbohydrates—which have 4 kcal per gram—are the foods that are used as an energy source the most frequently.
Therefore, food give you energy and help you feel satisfied after eating.
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How long is the Earth’s precession estimated to last?
Answer: The Earth's axis rotates (precesses) just as a spinning top does. The period of precession is about 26,000 years.
Explanation:
Answer:
The Earth's axis rotates just as a spinning top does. The period of precession is about 26,000 years.
Explanation:
...............
what name is given to an enzyme which catalyses' the breakdown of proteins?
Answer:
Proteases
Explanation:
Pro - protein
eases - enzyme
n
Sedimentary rocks are only formed when sediments are compacted together by extreme pressure.
BER
Please select the best answer from the choices provided
OT
OF
Answer:
the correct option is the first option.
Locations in California are warmest in summer because sunlight in summer is
A) least intense and of shortest duration
B) least intense and of longest duration
C) most intense and of shortest duration
D) most intense and of longest duration
why do the ribosomes read the nucleotides three bases at a time brainly
Answer:
because the codon reads 3 bases at a time
hello I am Iron-60 , the twin of Iron-56, how am different than my twin?
1. In exponential population growth, A. every generation has a larger population than the generation before. B. the population remains below its carrying capacity. C. births and deaths are equal, but disease is limited. D. limiting factors eliminate predators in the population.
A pulse of sugars labelled with a fluorescent dye is supplied to leaves of young plants. After a brief interval, tissue sections are obtained from the plant and examined under the fluorescence microscope. Tissues are scored for the presence of fluorescence and ranked from very high to low fluorescence. Which cells would contain the most fluorescence
A pulse of sugars labelled with a fluorescent dye is supplied to leaves of young plants. After a brief interval, tissue sections are obtained from the plant and examined under the fluorescence microscope. Tissues are scored for the presence of fluorescence and ranked from very high to low fluorescence. Which cells would contain the most fluorescence
a. xylem
b. companion cells
c. sieve elements
d. epidermis
Answer: b. companion cells
Explanation:
The xylem and phloem are the vascular tissues in plants. Their function is to transport water and sugars respectively to all the parts of the plant body. Xylem is only involved in water transport. Companion cells and sieve elements are the two components of the phloem. The companion cells are the storage house of sugars they have a role in movement of the sugars in and out of the sieve elements. They take up sugars via active transport by using their transmembrane proteins. The companion cells will show major fluorescence as these are the reservoir of sugars.
In a few months, you receive a brief note from the breeder that he checked the four offspring and three have the purple trait and one has the white trait. Since only four offspring were produced, there are not necessarily enough offspring to observe the ratio you predicted. What is the probability of observing three purple and one white offspring: If the purple parent is Pp
Complete question:
1) Inspired by Gregor Mendel, you visit a local greenhouse to see what a pea plant looks like in person. You spot a plant in the corner and immediately notice that it exhibits the purple trait of the flower color character. This character is controlled by one gene with two alleles, the dominant purple P allele, and the recessive white p allele. Identify what you know for certain based on your observation. Check all that apply.
You know the genotype of the plant. This plant has at least one copy of the P allele.This plant must be heterozygous with respect to the flower color gene.You know the phenotype of the plant.2) In another corner of the greenhouse, you find another pea plant. This plant, however, exhibits the white trait of the flower color character. The greenhouse plant breeder approaches you and mentions that he plans to cross-fertilize the two plants that you have seen. He offers to let you know how the offspring turn out. Without realizing it, the breeder is actually conducting a
dihybrid cross testcross monohybrid cross3) If you were able to examine hundreds of offspring from this cross, what ratio of purple flowers to white flowers would you observe:
If the purple parent is PP ---------If the purple parent is Pp ----------4) In a few months, you receive a brief note from the breeder that he checked the four offspring and three have the purple trait and one has the white trait. Since only four offspring were produced, there are not necessarily enough offspring to observe the ratio you predicted. What is the probability of observing three purple and one white offspring:
If the purple parent is Pp? ----------If the purple parent is PP? ----------5) Based on the four offspring observed, you --------- (can/ cannot) know for certain whether the purple parent is Pp or PP.
Answer:
1)
This plant has at least one copy of the P allele. Because the plant is purple and the P allele is the one that codifies for this color. You know the phenotype of the plant. You can see that the plant has purple flowers, so you know its phenotype regarding flower color.2) A test cross
3)
If the purple parent is PP → 1:0 (100% heterozygous purple flowers, Pp)If the purple parent is Pp → 1:1 (50% Purple Pp, and 50% white pp)4)
If the purple parent is Pp? 3/4 = 75% purple and 1/4 = 25% whiteIf the purple parent is PP? 4/4 = 1 = 100% purple and 0 white5) Based on the four offspring observed, you CAN know for certain that the purple parent is Pp.
Explanation:
Due to technical problems, you will find the complete question, the answer, and the explanation in the attached files.
Pls help!!!! 68 points! Will mark brainliest but will report if answer is unrelated.
When the students in the video used the spray bottle
to simulate rainfall, what happened to the pollution
that had accumulated on top of the various areas?
Answer:
2 options bc i didnt see the video
Explanation:
The pouloution would sink into the area. The poultion would go up
Arrange these statements in the right order to describe process of inhalation.
___Air is drawn into the lungs
___Air pressure in the chest cavity decreases
___Lungs expand
___The diaphragm contracts and flattens
___The muscles between the ribs contract to move the ribs up and out
Answer:
1,5,2,3,4
Explanation:
I'm not sure about this, so take this answer with a grain of salt. I think you would fill in the blanks like this: 1,5,2,3,4.
Rabbits in most areas have a brown coat. The arctic hare has a bright white coat in
winter. How does the arctic hare's white color help it survive?
Answer:
Indeed, rabbits, in most of the planet, tend to have their fur colored brown, copper or other similar shades. Now, in the Arctic regions, these animals do not have this color, but a white one, similar to the environment that surrounds them. This is so because these animals, for evolutionary reasons, have adapted their fur to the snowy environment that surrounds them in the Arctic, in order to avoid being detected by potential predators, protecting themselves and trying to ensure their survival.
why water is essential for all living things
Answer: Living organisms need water to survive. Organisms require water to break down food molecules or generate energy during the respiration process. Water also helps many organisms regulate metabolism and dissolves compounds going into or out of the body.
Rainforests are habitats for many plants and animals. However, habitat fragmentation is occurring because of human activity. When a rainforest is fragmented, a large area is divided into small patches that are isolated from each other. Species living in these patches are more likely to become extinct as a result of overcrowding and competition.
Which of the following is the best way to minimize the effects of habitat fragmentation on the biodiversity of a rainforest ecosystem?
A.
constructing boundaries and fences around each habitat patch
B.
building natural green pathways across the original habitat to join all the patches together
C.
building concrete roads across the original habitat to join all of the patches together
D.
introducing new species that compete with the existing species in each habitat patch
Building natural green pathways across the original habitat to join all the patches together. Option B
What is rain forest?A rainforest is characterized by towering, largely evergreen trees and heavy rainfall. Some rainforests have existed in their current form for at least 70 million years, making them the oldest existing ecosystems on Earth.
Hence we can see that the best way to minimize the effects of habitat fragmentation on the biodiversity of a rainforest ecosystem is building natural green pathways across the original habitat to join all the patches together.
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