Answer:
Why do we need active transport?
Moving Against a Gradient
Small substances constantly pass through plasma membranes. Active transport maintains concentrations of ions and other substances that living cells require in the face of these passive movements. A cell may spend much of its metabolic energy supply maintaining these processes.
Explanation:
Hope That helped
tRNA brings amino acids to the
Answer:
Ribosomes ( a type of organelle)
Explanation:
tRNA brings amino acids to the Ribosomes
Hope this helped!
Have a supercalifragilisticexpialidocious day!
i would appreciate it a lot if you answered this:
Answer:
the nucleus
Explanation:
Chromatin is a mass of genetic material composed of DNA and proteins that condense to form chromosomes during eukaryotic cell division. Chromatin is located in the nucleus of our cells. The primary function of chromatin is to compress the DNA into a compact unit that will be less voluminous and can fit within the nucleus.
Kelli's earplugs fall out while visiting a very loud factory. Which could likely happen to Kelli?
damage to the outer ear
damage to the middle ear
increased hearing ability
earwax buildup
In the given case, falling of earplugs while visiting a loud factory could result in the damage to the middle ear.
How the middle ear can damage?Rupture in the eardrum, that is, a thin tissue, which separates the ear canal from the middle ear can cause damage in the middle ear. The middle ear damage can lead to hearing loss. Rupture in the eardrum can also make the middle ear susceptible to infections.
Middle ear damage can result due to:
Otitis media or middle ear infectionStress imparted on the eardrum Sudden loud sound or blast from a very loud factory or gunshotSevere head traumaTherefore, in the given case, due to fall-out of earplugs of Kelli while visiting a very loud factory could result in damage to the middle ear.
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Plants will grow more when the day is longer
is this supposed to be a true and false question... or is this a statement you were making...
During Prophase I replicated homologous chromosomes pair up and undergo synapsis. What testable question is generated regarding synapsis and genetic variability by Figure 1?
Answer:
A
Explanation:
the larger the loci distance the more chances there is for a crossing voer to occur.
If a plant is considered “drought-resistant“ does it require more or less water to perform photosynthesis?
Answer:
Less water.
Explanation:
If the plant is "drought-resistant" then that should mean less water is required for the plant to perform photosynthesis.
which of the following is a correct statement about the event of the cell cycle
Answer:
The answer which is a correct statement about the events of the cell cycle is 4) Interphase consists of the G1, S phase, and G2 phase - it also consists of G0 phase, but that is not included in this option
Answer:
i/d/k
Explanation:
A neurologist noticed that in one patient, damage to brain structure A resulted in a major
disruption in speech production, but left hearing ability intact. However, in another patient,
damage to structure B left major hearing impairment, but did not affect speech production.
This scenario is an example of...
Wernicke's aphasia.
a double dissociation.
Broca's aphasia.
a single dissociation.
Answer:
a double dissociation.
Explanation:
Double dissociation is a psychological term used to describe a scenario whereby two mentally concerned processes are independent in function i.e they work specifically for different functions. In double dissociation, damage to one neurological (brain) area affects only one of two functions and have no effect on the other.
This is the case in this question where a neurologist noticed that damage to brain structure A of a patient resulted in a major disruption in speech production, but left hearing ability intact while a damage to structure B in another patient left major hearing impairment, but did not affect speech production. This example portrays what DOUBLE DISSOCIATION explains.
The second farmer used Technique B: Used a genetically modified variety of corn. The plant produces an insecticide which selectively kills only the moth larvae as it feeds on the corn. What is a likely impact on the farmer of growing such a variety of corn?
A) The financial costs for the farmer would be lowered since LESS crops would be lost to pests.
B)The financial costs for the farmer would be lowered since MORE crops would be lost to pests.
C) The farmer may be held responsible for increasing chemical pollution.
D) The farmer's expenses for pest control would increase due to an increase in bee population.
Answer:
A) The financial costs for the farmer would be lowered since LESS crops would be lost to pests.
Explanation:
Planting of variety with a resistance strain to pest is one of the gene modification that occurs in plants, this has greatly help farmers improve on productivity, reducing the amount of money spent on controlling insect pest invasion on their farm.
Because the crop is resistant to pest no extra cost of purchasing chemicals to control pest on the farm and the number of damage to crop will be reduce in turn reducing the amount of plant lost to pest invasion this will lower the financial cost of the farmer and also an increase productivity.
The incidence of V. vulnificus infections is increasing, especially in northern parts of the United States, compared to 20 years ago. Can you think of any reason why this might be happening?
Answer:
The effects of climate change may be associated with the increased incidence of V. vulnificus infection
Explanation:
Vibrio vulnificus is a harmful bacterium that causes a serious disease due to eating contaminated seafood, which is the main cause of seafood-related deaths in the USA. V. vulnificus is naturally present in the flora of coastal waters around the world and this bacterium has been isolated from a variety of seafood (e.g.., fish, oysters, shrimp, etc). Epidemiologic studies have shown that the incidence of V. vulnificus infection has increased dramatically since 1996. During this same period, climate change has been responsible for the increase in salinity and temperature of the coastal waters (i.e., the natural habitat of this bacterium). In consequence, it is reasonable to suppose that the change in climatic conditions may be associated with the increased incidence of V. vulnificus infection.
What is the function of the sepal?
Answer: like a Nepenthes Alata
Explanation :The sepal is a defensive organ that encloses and protects the developing reproductive structures. At maturity, the sepal opens when the flower blooms. The outer sepal epidermis
1. Tina is a microbiology student using an HOL kit for her online course. She shares a small apartment with her two cats, and has a full time job across town. Suggest two potential locations in the apartment for Tina to store the lab materials and incubate cultures. Explain why these locations are appropriate choices for Tina.
Answer:
A cabinet and a small closet.
Explanation:
A cabinet and a small closet are the best locations to incubate cultures because these location are safe from the cats interaction with the microbial culture. A cabinet consist of a cupboard with shelves or drawers for storing things. Closet is a tall cupboard which is used for storage things so due to height the cats can't reach to these place so the culture is safe.
Select the facts that support the endosymbiotic theory. Check All That Apply Mitochondria and chloroplasts have their own DNA. Mitochondria and chloroplasts have their own DNA. Mitochondria and chloroplasts often leave cells, surviving well on their own. Mitochondria and chloroplasts often leave cells, surviving well on their own. Mitochondria and chloroplasts are surrounded by two membranes. Mitochondria and chloroplasts are surrounded by two membranes. Mitochondria are about the same size as most bacteria.
Answer:
Mitochondria and chloroplasts have their own DNA
Mitochondria and chloroplasts are surrounded by two membranes
Mitochondria are about the same size as most bacteria
Explanation:
The endosymbiotic theory, also known as symbiogenesis, is a theory that explains how eukaryotic organisms have been formed from prokaryotic cells. This theory holds that eukaryotic organisms originated from prokaryotic organisms that engulfed another prokaryotic cell, creating thus an organism with multiple membranes. In consequence, eukaryotic organelles, including mitochondria and chloroplasts, would have evolved from these prokaryotic endosymbionts. Moreover, both mitochondria and chloroplasts contain their own genes which are localized in a circular chromosome, thereby supporting an endosymbiotic origin of both organelles. Finally, bacterial cells have 1 to 10 microns in length, while mitochondria have a similar size, thereby also supporting an endosymbiotic origin of this organelle.
1 An animal that eats other animals for energy are called
2. Several different populations living together live in an
3. An ecosystem contains ONLY living organisms. (True or False)
4. The food chain arrow going from the mouse to the owl shows that the
mouse is the
5. What level of organization in an ecosystem comes AFTER population?
6. Organisms that eat autotrophs.
7. The start of the flow of energy in every food web is the
8. ---------- predators live on the top of an energy pyramid.
4. A plant that makes its own food from sunlight, air, and water is a
10. Living things that break down decayed plants and animals into smaller
organisms are called
Answer:
heterotrophs animal=1
Explanation:
heterotrophs animal=1
4=aututrops plant
gizmo weathering answer key activity B
Which of the following describes a non-sense mutation?
A.Base pair change results in a premature stop codon; protein is nonfunctional.
B.Base is changed but the resulting amino acid is the same as in the non mutant DNA. No outward changes
.
C.A base is either added or deleted and causes the codons to be read incorrectly.
D.Base pair change results in a different amino acid; this may or may not affect the protein that result.
Answer:
A.Base pair change results in a premature stop codon; protein is nonfunctional.
Explanation:
Mutation, generally, refers to any change that occurs to the genetic sequence of a DNA. It can occur in different forms, hence, has different types. One particular type is the base pair substitution mutation, which involves the replacement of one or more nucleotide base by another in a sequence.
Base pair substitution can either result in one of the following namely: silent, missense, and nonsense. In NONSENSE mutation, the replacement of bases in the sequence causes the translation process to stop because a STOP CODON is prematurely encountered. Hence, the protein is non-functional.
Why are models useful in Earth science?
Answer:
because it represents what happens
Explanation:
How do changes in wind currents effect the short term climate in a region?
Answer:
Explanation:
When wind blow, move cold and hot temperature include moisture. When wind blow over the sea, they carry moisture from the place to another geographical zone, when the get to a colder area, the condense and fall back as water droplets. The way the wind pass each other and they directions they move cause short-term change in climate
Complete the sentences by matching the names of trees to the appropriate blanks. To do this, drag the names on the left into the appropriate blanks in the sentences on the right. Terms may be used more than once.
a. cedar
b. mango
c. elm
d, maple
e. pine
Evergreens are plants that maintain their leaves in all seasons and include trees such as___, ____, and____.
2. Deciduous trees lose their leaves seasonally and include trees such as___and___.
3. Conifer leaves are generally thin and needle-like, while seeds are contained in cones. Conifers include___and___.
4. Hardwoods reproduce using flowers and have broad leaves; hardwoods include trees such as___, ___, and____.
Answer:
1. cedar, mango and pine
2. elm and maple
3. pine and cedar
4. mango, elm and maple
Explanation:
Evergreen trees are plant tree species that remain green across seasons, even in cold/dry conditions, thereby contrasting with deciduous trees that lose their leaves in cold/dry conditions. Conifers (Coniferophyta) are gymnosperm plants that produce seeds without fruit/flowers. Conifers are vascular land plants composed of one that one class named Pinopsida, which consists of perennial plants with secondary growth. Moreover, mango, elm, and maple are hardwood trees that have seeds within fruits (i.e., they are angiosperms), which lose their leaves seasonally (i.e., they are deciduous trees).
The process by which an organism makes more of its own kind is
Answer:
yes it is reproduction hope it helps
Why do some organisms make one type of protein for a feature while other organisms make two? RIGHT ANSWER GETS CROWN
Answer:
For every gene, there may be several possible versions. Different genes carry instructions for making different proteins. If the gene copies are heterozygous, two types of protein are produced, if the gene copies are h0m0zyg0us, one type of protein is produced.
Explanation:
Every gene has several variants. Genes encode proteins. If the gene copies are heterozygous, two types of protein are produced; if they are homozygous, one type of protein is produced.
What is a gene?DNA, or in the case of certain viruses, RNA, is the medium in which an organism's genome is written. A gene is a section of the genome that contains the genetic instructions for making a particular protein or RNA. Codons are units of three nucleotides in a gene that each code for a specific amino acid. Genes that code for proteins are made up of these codons.
There might be multiple variants of each gene, depending on the circumstances. Instructions for the production of a variety of proteins are contained within each gene. If the gene copies are homozygous, then only one type of protein will be produced; however, if the gene copies are heterozygous, then two different types of protein will be produced.
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Reconstruct the phylogeny that most simply and accurately accounts for the distribution of synapomorphies among ingroup species. Given matrices as small and simple as the above example, one can "build" the tree from the bottom up in a series of sketches, adding clades or branches representing groups with the fewest synapomorphies near the base of the tree and those with the most at the tips. Using the unlabeled phylogeny as a starting point, draw the stepwise construction of a fully resolved phylogeny to account for all of the synapomorphies, and include the synapomorphies that identify each clade (the first one, character 2, is included to get you started; this is shared by all members of the ingroup).
Complete question:
1). Determine the character states for the following six characters that are present in species OG, 5, 7, 15, 17, 18. Assign the character state found in the outgroup (OG) as a 0 and the alternative derived state a 1; use only two states per character. Example, stem width: 0 = thin, / = thick 1 (Characters and plant species image in the attached files)
2). Score each taxon using the 0 and 1 notation about and add to this matrix (Matrix in the attached files)
4). Reconstruct the phylogeny that most simply and accurately accounts for the distribution of synapomorphies among ingroup species. Given matrices as small and simple as the above example, one can build the tree from the bottom up in a series of sketches, adding clades or branches representing groups with the fewest synapomorphies near the base of the tree and those with the most at the tips. Using the unlabeled phylogeny as a starting point, draw the stepwise construction of a fully resolved phylogeny to account for all of the synapomorphies and include the synapomorphies that identify each clade (the first one, character 2, is included to get you started; this is shared by all members of the ingroup) (Tree in the attached files)
Answer:
Characters: Stem width: Thick-1 // Thin-0 Leaf edge (shape): Pointed-1 // Blunt-0 Flower base (shape): Narrow-0 // Wide-1 Flower orientation: Downward (Pendant)-1 // Upward (Vertical)-0 Petal color: Purple-1 // Yellow-0 Fruit shape (inset on card, on left): Round-0 // Elongated-1Complete Matrix in the attached filesOrder in the phylogeny reconstruction: OG --> 7 --> 5 --> 15 --> 17 and 18 (tree + evolutive changes in the attached files)Explanation:
NOTE: You will find the complete activity in the attached files.
The principle of maximum parsimony or maximum simplicity states that among all possible trees within a group of species, the most probable is the one that requires us to postulate the least number of evolutionary changes. So, to reconstruct a phylogeny we need to choose the tree that requires the less number of changes. To determine the character states for all the six characters, we assigned the number cero to all the characters expressed in the out-group. Thin steam, blunt leaf, narrow flower base, upward flower orientation, yellow petals, and rounded-seeds are all cero states. The other characters are 1.The above information of character state was used to fill in the matrix, specifying which character state belongs to each species according to their traits. The matrix was useful to reconstruct the phylogeny, to identify the autapomorphic trait, and to visualize all the clades. In pea plants purple flowers are dominant to white flowers.
If two white flowered plants are cross, what percentage of their
offspring will be white flowered?
Answer:
100%
Explanation:
This question involves a single gene coding for flower color in pea plants. The allele for purple flowers (P) are dominant to white flowers (p). This means that purple color will be expressed in a heterozygous state.
According to this question, If two white flowered plants are cross i.e. pp × pp, the following gametes will be produced by each of the parent: p and p. Using these gametes in a punnet square (see attached image), ALL (100%) of the offsprings will be white colored (pp).
Therefore, 100% of the offsprings will be white flowered.
A rna codon is uca what would be the amino acid created from this rna
Answer:
Methionine!
Explanation:
It's a stop codon
which cell is a plant cell and how do u know
Answer: B
Explanation: Its B becuase a plant cell has to contain a lot of things inside of it so it would be larger then A. If you look at the the ways they look (B and a plant cell) you'll see that B looks more like it.
A study is being done to test the effects of temperature on the number of microbial colonies. Four different incubators are set up, each at a different temperature with one culture plate in each. Each plate has the same nutrient content, pH, and are inoculated with microorganism samples from the same source. At the end of the experiment, the number of colonies on each plate is counted. What is the independent variable
Answer:
The correct answer is - the different temperatures of incubators.
Explanation:
An independent variable is a variable in a study or research which is manipulated or changed to check or find the effect on the dependent variable. The independent variable is the only factor that changes in research while other factors remain constant that can affect the result in the study.
In this case or study, there is the only factor that is manipulated is the temperature of incubators is manipulated to see the effect of temperature on the number of microbial colonies. Thus, the different temperatures of incubators is the independent variable here.
3. A moving car backs into a parked car in a
parking lot. Why would the bumpers on both
cars be dented?
A. The parked car was made of weaker material
than the car that was moving.
B. The car that was moving was made of weaker
material than the parked car.
C. When one car bumps into the other car, they
collide with equal and opposite force.
D. The bumpers of both cars would not have
become dented as a result of this minor
collision.
Answer:
A. The parked car was made of weaker material than the car that was moving.
Explanation:
Base from your opinion, why we need to study the beginning of the universe? Give at least five reasons.
Answer:
To know the origin of life, to have an idea of our ancestors, to be aware of the immensity of the universe, for informational reasons and to respect nature.
Explanation:
Many scientists and psychologists affirm that it is very complex for the human mind to understand the cycle of life and the origin of the universe, due to its immensity.
This is how it is necessary to be in constant scientific updating so as not to transmit false information and unravel human myths that are generated by lack of understanding of life-death.
Which organelle/part of the cell would say this if it could speak? I am like the broth or the liquid in vegetable soup.
There are carrots, peas, celery, and potatoes floating all in me.
1) Cytoplasm
2) Mitochondria
3) Nucleus
4) Vacuole
5) Cell membrane
Answer:
cytoplasm
Explanation:
woohoo biology.
Should Marijuana be legalized? Why or Why not?