Answer:
Cell: All living organisms are made up of cells, which are the basic building components. Cells also carry the body's genetic material and have the ability to replicate themselves. Cells are made up of several components, each of which serves a particular purpose. Organelles, for example, are specialized structures that perform specific activities within the cell.
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Atom: Protons, neutrons, and electrons are the three subatomic particles that make up an atom. The nucleus, which is made up of protons and neutrons, is at the core of the atom, while electrons float around in a tiny cloud above it.
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hope it helps...
have a great day!!
In the Science Olympiad, what is the main branch of science to study?
Answer:
Well, so far there are three branches of Science namely;
Earth SciencePhysical ScienceLife Sciencewhich fundamental units are involved in force do step Wise
Force = ma
We know, the unit that the S.I. unit of mass is Kg.
We also know that a = (v - u)/t.
We know that v = d/t and u = d/t and the S.I. unit of t(time) is s.
We know that the S.I. unit of d(displacement) is m.
So, the S.I. unit of v is m/s and the S.I. unit of u is m/s and the S.I. unit of t is s.
So, the S.I. unit of a is m/s×s or m/s²
So, the unit of force is
(unit of m) × (unit of a)
= kg × (m/s²)
= kg.m/s²
=
[tex]kg \: m \: {s}^{ - 2} [/tex]
Or more simply,
F = ma
=> F = m{(v-u)/t}
Putting units,
Newton = kg[{(m/s) - (m/s)}/s]
=> Newton = kg{(m/s)/s}
=> Newton = kg(m/s²)
=> Newton = kg.m/s²
=> Newton = kg.m.(s^-2)
There are six major groups of enzymes. The categories are based on the types of reactions that they catalyze. What type of enzyme can join together two molecules to make a larger molecule such as a long strand of DNA
Answer:
DNA ligase.
Explanation:
DNA ligase is a type of enzyme that is responsible for join together of two molecules to make a larger molecule such as a long strand of DNA. This enzyme joins the end of two DNA molecules making it a long strand of DNA. In DNA cloning process, restriction enzymes and DNA ligase enzymes are used to incorporate genes and other pieces of DNA into plasmids so we can say that DNA ligase is responsible for long strand of DNA.
Can someone help me with this pls
Which of the following results in agglutination?
(1) similar blood types being mixed
(2) the separation of blood cells from plasma
(3) antigens reacting to other antigens
(4) antibodies reacting to foreign antigens (5) the donation of blood to a blood bank
Answer:
your answer is antibodies reacting to foreign antigens.
Post Lab Report Part II 6. The probability that the two offspring you produced share every genotype in common is extremely low. Explain why they are likely to be different. 7. How would genetic variability be affected if more chromosome pairs were added? What about if another partner was added?
Answer:
Explanation:
Answer to 6:
The probability of two offspring with the same genotype is very low because due to recombination between the chromosomes of the father and mother each gamete has a different composition of genetic material. The only chance that they share the genotype is if they were zygotical twins.
Answer to question 7:
When you increase the number of chromosomes the variability will increase too.
A white colony growing on mannitol salt agar tests negative for coagulase and novobiocin sensitivity. This bacterium is most likely ________________
A white colony growing on mannitol salt agar tests negative for coagulase and novobiocin sensitivity. This bacterium is most likely ________________
Streptococcus pyogenes.
Staphylococcus epidermidis.
Stpahylococcus saprophyticus.
Staphylococcus aureus.
Answer:
for the first it is Staphylococcus saprophyticus. and for the second it is Streptococcus pyogenes.
Explanation:
Answer:
1. Staphylococcus aureus.
2. Staphylococcus epidermidis.
Explanation:
Which of the following statement(s) is/are true regarding the adrenal glands' relationship with the autonomic nervous system?
a. The adrenal cortex is an extension of the parasympathetic nervous system.
b. The adrenal medulla secretes norepinephrine when stimulated by the sympathetic nervous system.
c. The adrenal glands are strictly nerve tissue.
d. The parasympathetic division stimulates the adrenal cortex to secrete glucocorticoids.
e. The adrenal medulla is penetrated by the fibers of the sympathetic nervous system.
Answer:
The true statements regarding the adrenal glands' relationship with the autonomic nervous system are:
a. The adrenal cortex is an extension of the parasympathetic nervous system.
c. The adrenal glands are strictly nerve tissue.
d. The parasympathetic division stimulates the adrenal cortex to secrete glucocorticoids.
e. The adrenal medulla is penetrated by the fibers of the sympathetic nervous system.
Explanation:
The levels of the central nervous system which play important roles in influencing the autonomic nervous system include cerebral cortex, hypothalamus, brain stem, and spinal cord. Usually, epinephrine (adrenaline) and norepinephrine are released into the blood stem when stress or a threat occurs. This alert serves as a warning signal and defense system. The purpose is to maintain homeostasis.
Explain why virus could not fit into any one of the five kingdom
Answer:
To make copies of themselves they necessarily need the intervention of a cell. Therefore, viruses are not living beings. That is why they are not included in any Kingdom in which living beings are included
How are the workings of receptor in human body related to the sensors in a car listed below?
A. Light:
B. Touch:
C: Sound:
D: Speed:
Further studies of the genes in the region around the MHC locus identified C4 as a likely causative gene. A particular allele of C4 was significantly associated with schizophrenia. In addition, it was found that individuals with high expression of this allele of C4 had elevated risk of developing schizophrenia. Which of the following variants would be most likely to increase risk of schizophrenia from this allele?
a. a variant that decreases binding of an activating transcription factor to the C4 promoter
b. a 5’ UTR variant that destabilizes the C4 mRNA
c. a duplication of the C4 gene
d. a nonsense coding variant
Answer:
c. a duplication of the C4 gene
Explanation:
Schizophrenia is a disease that affects the brain, which is characterized by an imbalance of neurotransmitters and the presence of damaged brain tissues. In humans, the Complement component 4 (C4) protein is found at the neurons (i.e., cell bodies, dendrites and axons), which are the most common brain cells, and neuronal synapses. Moreover, gene duplication can increase gene expression when repressive mechanisms (e.g., DNA methylation at promoter sites) capable of silencing the expression of the duplicated gene are lacking. Recently, it has been discovered that a chromosome rearrangement associated with a tandem duplication of a genomic region that contains a C4 gene may contribute to schizophrenia risk by increasing the expression of this gene. In this example, a, b and d options are associated with a decrease in expression of the C4 gene, either by decreasing its transcription (options a and d) or by posttranscriptional mechanisms (option c).
(URGENT) Which of these statements is correct about the ocean waves? (100 points)
A) Wave 1 and Wave 2 have the same wavelength.
B) Wave 2 and Wave 3 have the same wavelength.
C) Wave 1 and Wave 2 have the same amplitude.
D) Wave 2 and Wave 3 have the same amplitude
Answer:
D
Explanation:
Wave 2 and Wave 3 have the same amplitude.
What would be the most likely result if humans stopped burning fossil fuels?
Answer:
It allows an ozone layers not to be greatly in big holerelease fresh airAnswer:
If human stop burning fossil fuels then the condition and pollution will desperate. There would be more carbon dioxide and less oxygen.
hope it helps you!!!1.) Citrus Red Mites can disperse to other locations by ______.
Choose the best answer.
a. crawling and roping.
b. using their wings to fly.
c. egg expulsion shot into other plants.
d. being carried by other insects.
2.) Mark all correct answers.
The mouth parts of insects are important for these reasons.
They can help us identify the insects
They tell us how they feed on a plant
What show the sort of damage they cause.
The kinds of disease they spread.
Answer:
A crawling and roping
They can help us identify the insect
•Based on cellular respiration, why does cardiac arrest (heart stops beating) decrease brain activity? Hint: think about what happens in the absence of blood flow and oxygen levels.
Answer:
the heart stops pumping as much blood to the brain which will lower the amount of funtion.
8. Two rabbits are bred together. One is heterozygous for agouti coat
(genotype: Cch) and the other is albino. What are the possible phenotypes
of their offspring? Construct a Punnett square to support your answer.
Answer:
- Parental cross = Cch x chch
- F1 = 1/2 Cch (agouti coat); 1/2 chch (albino coat) >> 1:1 phenotypic ratio
Punnett square:
ch ch
C Cch Cch
ch chch chch
Explanation:
A heterozygous individual is an individual who has two different gene variants (i.e., alleles) at a particular locus. In this case, individuals having the "agouti coat" trait are heterozygous carrying both 'C' and 'ch' alleles. On the other hand, a homo-zygous individual has the same allele at a given locus (here, the 'chch' genotype associated with the albino phenotype). Therefore, as observed in the Punnett Square above, when a heterozygous parent is crossed with a homo-zygous recessive parent for a single gene, alleles segregate in the gametes of both parents so an expected 1:1 phenotypic ratio will be observed.
Unlike other plants, trees are plants living for several years thus they are
A. Annual
B.shade
C.perennial
D. Fence
Two species of closely related frogs are found in the same pond high in the Andes of South America. Both species only have teeth on the top jaw. One has small teeth for holding small live prey prior to swallowing. The other species has very large sharp teeth for injuring and killing large prey prior to biting off pieces of flesh for consumption. The above is an example of:
Complete question:
Two species of closely related frogs are found in the same pond high in the Andes of South America. Both species only have teeth on the top jaw. One has small teeth for holding small live prey prior to swallowing. The other species has very large sharp teeth for injuring and killing large prey prior to biting off pieces of flesh for consumption. The above is an example of:
Directional selectionAnalogous structuresCharacter displacementHybridization Vestigial structuresAnswer:
Character displacementExplanation:
Competition is an ecological and evolutive process very common in nature. Competition might be intra- or interspecific. Competition between different species in a community or ecosystem might be due to the same resource use, or the same territory, shelter, etcetera. When a resource is useful for two or more species, and limited, they compete to gain it.
The principle of competitive exclusion states that different species with the same requirements sharing the niche can not coexist indefinitely based on the same limited resource. When two competing species coexist, this is because of niche partitioning or niche differentiation.
Differentiation of effective niche is closely related to character displacement.
Character displacement is the result of interspecific competition, in which two or more species that live in the same habitat manage to avoid competition by developing different traits. Morphological divergence, or any adaptative trait development, fixated genetically, is the product of niche segregation. Species tend to differentiate morphologically in the presence of strong competitors. Traits divergence favors coexistence in the same place.
In the exposed example, both species live in the same pond. But to avoid competition and competitive exclusion, species developed different teeth sizes to feed on different prey items.
Write the name of the nutrients present in each of these food items. eggs bread fruits fish milk chocolates oil potatoes
Answer:
what your Question
Explanation:
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You isolate a variant of the Hfr parent in question 6 that only shows recombination of the his+ and trp+ genes. The cross was ( HFR lac+, gal+, trp+, his+, strr X F- lac-, gal-, trp-, his-, strs ). This strain most likely:_________.
a. Contains an F' his+ trp
b. Has become F-
c. Contains an Hfr translocation
d. No longer mates as a merry diploid
e. Not enough information is given
Answer:
The correct answer is - b. has become F-.
Explanation:
In the case of the cross of two different strains, some genetic material moves to the F- strain from the Hfr strain, but due to genome size, it's not possible that all the genes can pass into a single bacterium.
Instead of complete transfer, each individual F- cell gets a different and random subset of genes from the Hfr. There is no translocation and F' does not contain his+ trp+.
Which molecule would be the most affected by limited nitrogen?
myofibrillar proteins in muscle
glucose molecules in starch
fat molecules surrounding organs
cellulose molecules in plant cell walls
Answer:
The molecule that would be affected by 'limited nitrogen' is the myofibrillar proteins in muscle. Explanation: The myofibrils of the muscle have a number of protein molecules.
Answer:
A
Explanation:
edge 2022 trust the process
Question 2 of 26
What happens at a subduction zone between an oceanic plate and a
continental plate?
O A. The continental plate slides under the oceanic plate, and
part of it melts to form magma that sinks into the mantle.
O B. The oceanic plate and continental plate pull away from
each other, allowing magma to rise and form an ocean
ridge.
O c. The oceanic plate and continental plate slide past each
other, creating a series of faults that allow magma to rise
and form a chain of volcanoes.
O D. The oceanic plate slides under the continental plate, and
part of it melts to form magma that rises up through the
continental plate.
SUBMIT
Would an observational study or an experiment be more appropriate to investigate the effects on fertilizer on plant growth? Explain.
Answer:
Experiment
Explanation:
For such an investigation an Experiment would be the better option. This is because in an experiment you would have both an experimental group and a control group. This would allow you to use fertilizer on one but not the other, therefore, providing seperate results that you can use to compare with one another. This ultimately helps you determine the actual effects that fertilizer has on the growth of plants, since the fertilizer would be the only variable in the experiment. An observational study would only allow you to observe the plants in a natural scenario, without interfering and seperating the plants into different groups with different environments.
the results Mendel obtained during his experiments. It showed that if you cross two plants that were true-breeding for different colors (purple and white), the offspring or first generation (F1) would be ______________ instead of true-breeds, and all were _____________ in color. Interestingly, when he crossed two of these F1 plants, their offspring did not all come out _____________. Instead he obtain a ratio of ______ purple-flowered plant for every ______ white-flowered plant. He concluded that the “heritable factor” for the ____________ trait (white flowers) was not destroyed in the F1 generation. Instead it had been _______________ by the “heritable factor” of the ________________ trait (purple flowers).
Answer:
1. Heterozygous
2. Purple
3. Purple
4. 3
5. 1
6. Recessive
7. Masked
8. Dominant
Please find the missing answers to the questions in BOLD.
Explanation:
As illustrated in this question, Gregor Mendel used the color trait of pea plant to discover his law of dominance.
The results Mendel obtained during his experiments. It showed that if you cross two plants that were true breeding for different colors (purple and white), the offspring or first generation (F1) would be HETEROZYGOUS (Pp) instead of true-breeds, and all were PURPLE in color.
Interestingly, when he crossed two of these F1 plants (Pp × Pp), their offspring did not all come out PURPLE, instead he obtain a ratio of 3 purple-flowered plant for every 1 white-flowered plant. He concluded that the “heritable factor” for the RECESSIVE trait (white flowers) was not destroyed in the F1 generation. Instead it had been MASKED by the “heritable factor” of the DOMINANT trait (purple flowers).
Select all the correct answers.
Which two of these characteristics does an organism with bilateral symmetry possess?
Answer:
symmetrical in many ways across a central axis" and "presence of a head".
Explanation:
Bilateral symmetry is a characteristic that many organisms has at which if we divide the body using an imaginary line, we will see two mirror images. Two characteristics that an organism with bilateral symmetry possess are symmetrical in many ways across a central axis (known as well as the sagittal plane), and presence of a head that is at the middle of the central axis. The great majority of organisms posses bilateral symmetry, including the humans.
Cystic fibrosis is most common in individuals of Northern European descent, affecting 1 in 3200 newborns. Assuming that these alleles are at Hardy-Weinberg equilibrium, what is the frequency of the disease-causing CFTR alleles in this population
Answer:
0.0177
Explanation:
Cystic fibrosis is an autosomal recessive disease, thereby an individual must have both copies of the CFTR mutant alleles to have this disease. The Hardy-Weinberg equilibrium states that p² + 2pq + q² = 1, where p² represents the frequency of the homo-zygous dominant genotype (normal phenotype), q² represents the frequency of the homo-zygous recessive genotype (cystic fibrosis phenotype), and 2pq represents the frequency of the heterozygous genotype (individuals that carry one copy of the CFTR mutant allele). Moreover, under Hardy-Weinberg equilibrium, the sum of the dominant 'p' allele frequency and the recessive 'q' allele frequency is equal to 1. In this case, we can observe that the frequency of the homo-zygous recessive condition for cystic fibrosis (q²) is 1/3200. In consequence, the frequency of the recessive allele for cystic fibrosis can be calculated as follows:
1/3200 = q² (have two CFTR mutant alleles) >>
q = √ (1/3200) = 1/56.57 >>
- Frequency of the CFTR allele q = 1/56.57 = 0.0177
- Frequency of the dominant 'normal' allele p = 1 - q = 1 - 0.0177 = 0.9823
what type of properties change in a physical change?Give an example to support the answer?
How can we get more food for ourselves without damaging other animals' food chains?
Answer:
it's simple We have to crop the vegetables .
Which of the following terms describes the distribution of a particular allele
within a population?
A. Allele dominance
B. Allele strength
C. Allele frequency
D. Allele density
Please help me
Answer:
Option : B Allele frequency...Explanation:
The answer is allelic frequency. This is also the fraction of a particular allele of a gene in the population. please marks me as brainliests..please for my answer please...What is rcbL, and why is it a particularly useful molecule for studying evolutionary relationships in plants and green algae
Answer:
RBCL denotes for 'rubisco protein.' It is characterized as 'a plant enzyme which catalyzes both the fixing of carbon dioxide found in atmosphere during photosynthesis and the reverse process of photorespiration.' It plays a very significant role in studying, as well as, in evaluating relations associated with phylogenetics in plants primarily along with green algae as it assists them to produce energy molecules by using carbon dioxide from the atmosphere. It has therefore been the key factor behind a number of organic carbon that is discovered in our surrounding biosphere.
Short-term mechanisms for regulating blood pressure include regulating peripheral vascular resistance and cardiac output through:________-
Answer:
Dilation or constriction
Explanation:
Short-Term mechanism for regulating blood pressure include regulating peripheral vascular resistance and cardiac output through dilation or constriction of the blood vessels while on the other hand, long-term mechanism for controlling of blood pressure done by the renin-angiotensin system. Brains stem is the part of the brain that is responsible for the controlling of blood pressure in the body.
