Answer:
they are expensive is the answer
Critical thinking
How could bringing just a few individuals of an organism to a new
ecosystem cause big changes to that ecosystem?
The organism could effect
Food chainAmount of resourcesinteraction between the communityWhat is food chain ?
A food chain describes how energy and nutrients move through an ecosystem. At the basic level there are plants that produce the energy, then it moves up to higher-level organisms like herbivores.
What is interaction in community ?
An ecological community consists of all the populations of all the different species that live together in a particular area. Interactions between different species in a community are called interspecific interactions—inter- means "between."
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What might happen at the cellular level of the plant if there was no water available for photosynthesis?
Answer:
when water levels are low due to water stress, photosynthesis can slow or even stop, causing internal food supplies vital to other processes to diminish or disappear -- yellowing may also occur if photosynthesis stops completely.
Explanation:
If there was no water available for photosynthesis, the cellular level of the
plant will be affected negatively in areas such as shrinking of cells and
decrease in photosynthetic activities.
Plants require water to produce food in the process known as
photosynthesis. When there is no water the photosynthesis is slowed down
and the cells begin to shrink.
The shrinking of cells then results to the wilting and yellowing of leaves of the plant.
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When organisms grow, what happens to their cells?
A- the cells continue to get larger
B- they increase in number
C- both a and b
D- neither a nor b
Answer:
B.
Explanation:
whenever a organism grows the cells seperate to make up more room for the organism to keep growing until adulthood to elderly-hood
There are 10 pieces of candy in a bowl and 2 of them are chocolate. What percentage of the pieces of candy in the bowl are chocolate?
Answer:
20%
Explanation:
2 out of 10 is the same as 20 out of 100. So 2/10 = 2/100 or 20%
What is the dew point temperature at which cloud formation began?
Explanation:
If the air temperature cools to the dew point, or if the dew point rises to equal the air temperature, then dew, fog or clouds begin to form. At this point where the dew point temperature equals the air temperature, the relative humidity is 100%
(GIVING BRAINLIEST!!)
Which of the water reservoirs contains one percent of the water on Earth?
A) Lakes, rivers, and groundwater
B) Oceans
C) Polar ice caps and glaciers
D) Oceans and groundwater
Answer:
Polar ice & glaciers
Explanation:
Just look at the grey its bigger than the orange .-.
Answer:
The answer is C
Explanation:
PLEASE HELP I WILL GIVE BRAINALIST
Answer:
I think your answer is B).
Answer:
B An docrcase in water temperature
how can you walk under water?
Answer:
by taking oxygen heavy bottle for respiration and to touch a ground.
How does mutating the DNA affect the organism?
Evaluate each of the statements below. Select those that accurately describe the role of genes and chromosomes in the process of inheriting a specific trait. Choose ALL that apply. A) Chromosomes are made of DNA. B) There are 26 pairs of chromosomes in humans. 09 Alleles are the different forms of a gene that can exist. D) Chromosomes contain genes that control the inheritance of traits. E) Genes are made of chromosomes and contain all of the genetic information for an organism.
Answer:
A) Chromosomes are made of DNA
C) Alleles are the different forms of a gene that can exist
D) Chromosomes contain genes that control the inheritance of traits.
Explanation:
Chromosomes are long molecules of deoxyribonucleic acid (DNA) that contain part (or all) of the genetic material of an organism. Humans contain 46 chromosomes organized in 23 pairs of homologous chromosomes (22 pairs of autosomal chromosomes and one pair of sex chromosomes, X and Y). Moreover, a gene is a physical segment of a chromosome that contains the information to encode a protein. Alleles are different forms of a gene (i.e., gene variants) that may be caused by mutations or genetic recombination. Humans are diploid organisms (2N: 46), and therefore we have two copies of each gene (alleles), one on each homologous chromosome.
How do keystone species shape communities?
Explanation:
A keystone species is an organism that helps define an entire ecosystem. By keeping populations of mussels and barnacles in check, this sea star helps ensure healthy populations of seaweeds and the communities that feed on them—sea urchins, sea snails, limpets, and bivalves.
Answer:
By keeping populations of mussels and barnacles in check
What are three kinds of volcanoes? What makes them different?
Answer:
Composite, shield, cinder cones, and supervolcanoes are the main types of volcanoes.
Composite volcanoes are tall, steep cones that produce explosive eruptions.
Shield volcanoes form very large, gently sloped mounds from effusive eruptions.
Volcanoes have several shapes, which are controlled by the composition of the magma and the nature of its eruption. If a volcano produces very fluid lava (low in the compound SiO2, or silica), the magma flows a long distance before it cools, making a flat, shield-shaped volcano.
Explanation:
Transcribe and translate the following DNA strand into an RNA strand: TACCA
GTAGATT
Answer:
Explanation:Key points:
Transcription is the first step in gene expression. It involves copying a gene's DNA sequence to make an RNA molecule.
Transcription is performed by enzymes called RNA polymerases, which link nucleotides to form an RNA strand (using a DNA strand as a template).
Transcription has three stages: initiation, elongation, and termination.
In eukaryotes, RNA molecules must be processed after transcription: they are spliced and have a 5' cap and poly-A tail put on their ends.
Transcription is controlled separately for each gene in your genome.
Introduction
Have you ever had to transcribe something? Maybe someone left a message on your voicemail, and you had to write it down on paper. Or maybe you took notes in class, then rewrote them neatly to help you review.
As these examples show, transcription is a process in which information is rewritten. Transcription is something we do in our everyday lives, and it's also something our cells must do, in a more specialized and narrowly defined way. In biology, transcription is the process of copying out the DNA sequence of a gene in the similar alphabet of RNA.
Overview of transcription
Transcription is the first step in gene expression, in which information from a gene is used to construct a functional product such as a protein. The goal of transcription is to make a RNA copy of a gene's DNA sequence. For a protein-coding gene, the RNA copy, or transcript, carries the information needed to build a polypeptide (protein or protein subunit). Eukaryotic transcripts need to go through some processing steps before translation into proteins.
In transcription, a region of DNA opens up. One strand, the template strand, serves as a template for synthesis of a complementary RNA transcript. The other strand, the coding strand, is identical to the RNA transcript in sequence, except that it has uracil (U) bases in place of thymine (T) bases.
Example:
Coding strand: 5'-ATGATCTCGTAA-3'
Template strand: 3'-TACTAGAGCATT-5'
RNA transcript: 5'-AUGAUCUCGUAA-3'
For a protein-coding gene, the RNA transcript contains the information needed to synthesize a polypeptide (protein or protein subunit) with a particular amino acid sequence. In this case:
RNA transcript (acting as messenger RNA): 5'-AUGAUCUCGUAA-3'
Polypeptide: Met-Ile-Ser-STOP
In transcription, a region of DNA opens up. One strand, the template strand, serves as a template for synthesis of a complementary RNA transcript. The other strand, the coding strand, is identical to the RNA transcript in sequence, except that it has uracil (U) bases in place of thymine (T) bases.
Example:
Coding strand: 5'-ATGATCTCGTAA-3' Template strand: 3'-TACTAGAGCATT-5' RNA transcript: 5'-AUGAUCUCGUAA-3'
For a protein-coding gene, the RNA transcript contains the information needed to synthesize a polypeptide (protein or protein subunit) with a particular amino acid sequence. In this case:
RNA transcript (acting as messenger RNA): 5'-AUGAUCUCGUAA-3' Polypeptide: Met-Ile-Ser-STOP
RNA polymerase
The main enzyme involved in transcription is RNA polymerase, which uses a single-stranded DNA template to synthesize a complementary strand of RNA. Specifically, RNA polymerase builds an RNA strand in the 5' to 3' direction, adding each new nucleotide to the 3' end of the strand.
RNA polymerase synthesizes an RNA strand complementary to a template DNA strand. It synthesizes the RNA strand in the 5' to 3' direction, while reading the template DNA strand in the 3' to 5' direction. The template DNA strand and RNA strand are antiparallel.
RNA transcript: 5'-UGGUAGU...-3' (dots indicate where nucleotides are still being added at 3' end)
DNA template: 3'-ACCATCAGTC-5'
RNA polymerase synthesizes an RNA strand complementary to a template DNA strand. It synthesizes the RNA strand in the 5' to 3' direction, while reading the template DNA strand in the 3' to 5' direction. The template DNA strand and RNA strand are antiparallel.
RNA transcript: 5'-UGGUAGU...-3' (dots indicate where nucleotides are still being added at 3' end) DNA template: 3'-ACCATCAGTC-5'
Stages of transcription
Transcription of a gene takes place in three stages: initiation, elongation, and termination. Here, we will briefly see how these steps happen in bacteria. You can learn more about the details of each stage (and about how eukaryotic transcription is different) in the stages of transcription article.
Initiation. RNA polymerase binds to a sequence of DNA called the promoter, found near the beginning of a gene. Each gene (or group of co-transcribed genes, in bacteria) has its own promoter. Once bound, RNA polymerase separates the DNA strands, providing the single-stranded template needed for transcription.
If a DNA molecule is 24% Thymine, which one of these is correct?
A. Adenine is also 24%, Cytosine is 26%
B. Cytosine and Guanine have a total of 48%
C.Guanine is 26% and Cytosine is 24%
D. A and B are correct
Answer:
D
Explanation:
D is the correct answer i think and I'm sorry if it's not
PLEASE ANSWER I'll love you forever
which structure is represented by letter b
A.ribosome
B. tRNA
C.Nucleus
Answer:
the leeter b is sturcture by option A:ribosome
The size of a food chain can vary, but the number of levels that a food chain can reach is limited. Why does this limit exist ?
Answer:
Energy is lost at each trophic level.
Explanation:
hope this helps have a good rest of your day :) ❤
Energy is lost at each trophic level.
What is food chain ?
Food chain, in ecology, the sequence of transfers of matter and energy in the form of food from organism to organism.
What is tropic level?
Trophic level is defined as the position of an organism in the food chain and ranges from a value of 1 for primary producers to 5 for marine mammals and humans.
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Evolution is a process of ____
in a population through ____
variation over ____.
Evolution involves _____
and ______.
Answer:
Evolution is a process of
✔ change
in a population through
✔ genetic
variation over
✔ time
.
Evolution involves
✔ change over time
and
✔ descent from a common ancestor
.
Explanation:
Evolution is a process of change
in a population through genetic
variation over time.
Evolution involves change over time
and descents from a common ancestor.
What is the evolutionary process?Evolution is the process of changing the genetic material of a population over time. Evolution reflects the organism's adaptation to a changing environment and can lead to genetic changes, new traits, and new species.
How do process changes occur during evolution?Genetic variation can result from genetic variation (also called a mutation) or from the normal process by which genetic material is rearranged (known as gene recombination) as cells prepare to divide. there is. Genetic variation that alters genetic activity or protein function can introduce a variety of traits into an organism.
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What is being used to carry the new gene into the bacterial cell?
A plasmid
A virus
A chromosome
A needle
Answer:
A plasmid
Explanation:
A plasmid is an extrachromosomal DNA molecule within a cell that is physically separated from chromosomal DNA and can replicate independently. -Wiki
4. Why does semen contain fructose?
A. Fructose breaks down to provide energy for the penis.
B. Fructose travels with the sperm to feed the egg before it is fertilized.
C. Fructose feeds sperm, enabling them to survive long enough to fertilize an egg.
D. Fructose provides energy for the development of the fertilized egg.
I’ll give brainiest:)
Answer:
The answer is C
Explanation:
I just got it right on the quiz
Fructose feeds sperm, enabling them to survive long enough to fertilize an egg.
Semen contains fructose because it feeds the sperm, enabling them to survive long enough to fertilize an egg. Therefore, the correct answer is option C.
What is fructose?Fructose is a type of sugar that provides energy to the sperm as they travel through the female reproductive tract in search of an egg to fertilize. Sperm have a limited lifespan outside the male body, so it is essential that they are supplied with enough energy to reach and fertilize an egg before they die.
The fructose in semen provides this energy to the sperm, allowing them to survive and swim towards the egg. Once inside the female reproductive tract, the fructose is absorbed by the sperm and used to fuel their movement towards the egg. Without the fructose in semen, the sperm may not have enough energy to reach the egg and fertilize it.
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root hair cells have a high ion concentration . explain how this is maintained and its importance
Answer:
Root hair cells are adapted for taking up water and mineral ions by having a large surface area to increase the rate of absorption. They also contain lots of mitochondria , which release energy from glucose during respiration in order to provide the energy needed for active transport.
Explanation:
To maintain the concentration gradient and so the constant movement of water into the root hair cell by osmosis, the root hair cell actively transports mineral salts into the cell.
Root hairs are important because they absorb the majority of the water and nutrients required by the plant. The root hair cell actively transfers mineral salts into the cell to maintain the high ion concentration.
Root hairs, also known as absorbent hairs, are outgrowths of epidermal cells, which are specialized cells found at the root's tip.Root hairs are important because they absorb the majority of the water and nutrients required by the plant. In legume plants, they are also directly involved in the production of root nodules.The root hair cell actively transfers mineral salts into the cell to maintain the concentration gradient and hence the continual passage of water into the cell by osmosis.
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What issue might be present in the soil if the ration to Nitrogen (N), Phosphate (P)
and Potassium (K) are sufficient, but the leaves of a
plant are showing phosphate and potassium deficiency?
Answer:
Low level of nitrogen in the soil.
Adding organic materials poor in mineral nitrogen to the soil, which encourages the subsistence of soil microorganisms on mineral nitrogen to break down these materials, and this causes a temporary reduction in the proportion of mineral nitrogen in the soil.
Soil drought.
Problems with root growth due to soil compression or disease.
Name the type of the leaf when its lamina is entire or when incised?
Answer:
compound
Explanation:
A leaf is said to be simple, when its lamina is entire or when incised, the incisions do not touch the midrib. When the incisions of the lamina reach up to the midrib breaking it into a number of leaflets, the leaf is called compound
Long chain of _________________ that surrounds the Pacific Ocean.
Answer:
The Ring of Fire or also known as the Circum-Pacific Belt
Hope that helps!
Answer:
the circum-pacific system A surrounds the pacific ocean.
Explanation:
R. Scientific errors are factors that could have contributed to the uncertainty in the outcome of your experiment. Could measurements have been more accurate? Could you have performed more trials? Could environmental factors, such as the lab's lighting or temperature, have had an effect? State these possible sources of error and analyze or estimate how much they may have affected your results.
Answer:
Yes.
Explanation:
Yes, measurements should be more accurate if these scientific error are removed. Yes, we must perform more trials in order to verify the experiment. Environmental factors, such as the laboratory's lighting or temperature, has a great effect on the experiment and can cause error. In this experiment the errors occur such as instrumental, environmental, procedural, and human. All these error causes inaccurate readings of experiment so greatly affect the experiment.
lab safety equipment alternatives
Answer:
Fume Hoods
Fume hoods provide a barrier between laboratory workers and hazardous chemicals or chemical processes. The key item of fume hoods to make it function well is its ability to exhaust vapor/gas at a certain flow rate.
Flammable Liquid Storage Cabinets
Fire hazard from flammable liquid shall be adequately controlled, including by using storage cabinets. Always store the flammable liquid inside the storage cabinet.
Fire Extinguishers
Provide appropriate fire extinguishers for the laboratory in adequate quantity. Place them in the right location for easy access, high visibility, and free from any obstacles.
Fire Blankets
A fire blanket is one of the most important fire extinguishing equipment. When you find a fire for the first time, use this fire blanket to diminish the fire as soon as possible before it grows bigger.
Safety Cans
You must use safety cans to store flammable liquid in the laboratory safely. It minimizes fire accidents and so protect laboratory workers from the fire hazards.
Safety Showers
When chemical splash occur, you have to immediately wash all of your work cloth and body with plenty of water. So, that’s why safety showers role are very important in case of such emergency condition.
Eyewash Stations
Even though you have already worn safety goggle, but it does not mean that your eyes are fully protected from chemical splash hazard.
The possibility still exists. Because of this reason, you need to make sure that an eyewash station is available in the laboratory.
Chemical Spill Kits
Chemical spill kits are required for handling hazardous chemical spills in the laboratory. The key is to provide the kits in enough quantity and place them on the appropriate location.
First Aid Kits
Make sure that the first aid kits is available in the laboratory and the content is complete. Inspect regularly the content and immediately add first aid kits item if already used up.
Personal Protective Equipment
You must provide all basic personal protective equipment for every lab analyst; lab coat, apron, eye goggles, nitrile gloves, and face shield.
Explanation:
whats the structure of cerebrospinal fluid
Answer:
Cerebrospinal fluid (CSF) is a clear, colourless ultrafiltrate of plasma with low protein content and few cells.
Explanation:
The CSF is mainly produced by the choroid plexus, but also by the ependymal lining cells of the brain's ventricular system.
Which of the following correctly shows the sequence of protein synthesis?
a. DNA -> protein -> RNA
b. RNA -> DNA -> protein
c. Protein -> RNA -> DNA
d. DNA -> RNA -> protein
Answer:
D
Explanation:
*too lazy to write the explanation*
Do you believe in evolution? , why or why not?
Answer: No, I don’t believe in evolution, I *KNOW* that evolution is a fact because THOUSANDS of scientists over the past couple of centuries have built up a body of evidence which makes the theory of evolution one of the best supported theories in all of science. -quora (not made by me its just to help u out)
Why would plant cells become wilted in a concentrated sugar solution?
A:They lose water by osmosis
B:They are not receiving enough light
C:They lose water by active transport
D:They gain water by osmosis
How are the properties of water
essential to life on Earth?
Explanation:
water is essential for all living things. Water's unique density, high specific heat, cohesion, adhesion, and solvent abilities allow it to support life.