Chapter 3 Study Guide (Connect-ED)
Please answer as much as you can, but try to answer ALL if you can.
1. Use the term sister chromatids in a sentence.
2. Define the word centromere in your own words.
3. The new cell formed by mitosis are called ________.
4. Use the term cell differentiation in a sentence.
5. Define the term stem cell in your own words.
6. Organs are a group of _______ working together to preform a different task.
Answers
Answer:
1. Sister chromatids are two identical copies of one chromosome.
2.The place where the sister chromatids are attached.
3. a diploid cell
4. Cell differentiation is when a cell turns from one type to another.
5. a cell that is uniquely able to develop into another.
6. tissues
Related Questions
What is meant by the term aging?
a. having entered school
b. becoming interactive
c. becoming older
d. having a personal identity
Answers
What are the vsepr shapes (molecular geometries) associated with the indicated atoms i, ii, iii, respectively?
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The VSEPR (Valence Shell Electron Pair Repulsion) theory is based on the idea that the valence electron pairs surrounding an atom repel each other, resulting in predictable shapes.
There are five main shapes associated with VSEPR theory: linear, trigonal planar, tetrahedral, trigonal bipyramidal, and octahedral. The molecular geometries of the atoms i, ii, and iii respectively are:trigonal bipyramidal, linear, and tetrahedral. Firstly, let's discuss the electron pairs in the central atom of the molecule:Atom i: Trigonal BipyramidalElectron-pair geometry: Trigonal Bipyramidal Molecular geometry: Trigonal BipyramidalAtom ii: LinearElectron-pair geometry: LinearMolecular geometry: LinearAtom iii: TetrahedralElectron-pair geometry: TetrahedralMolecular geometry: Tetrahedral VSEPR theory, first introduced by Gillespie, is based on the principle that the valence electron pairs surrounding an atom tend to repel each other.
The central atom of this molecule has five electron pairs, including three bonding pairs and two lone pairs. The electron-pair geometry is therefore trigonal bipyramidal. The molecular geometry is also trigonal bipyramidal because there are no lone pairs in the equatorial positions and the two axial positions are occupied by the lone pairsAtom ii: LinearElectron-pair geometry: LinearMolecular geometry: LinearThe central atom of this molecule has two electron pairs, both bonding pairs. The electron-pair geometry is therefore linear.
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What process contains the enzymes that break the chemical bonds in your food in order to create usable energy?
Answers
Answer:
Cellular respiration
Explanation:
This is because cellular respiration is an aerobic process where the chemical bonds in food are broken down to release energy. This process produce energy which are useful for the body cells. Cellular respiration help to break down glucose. Glucose and oxygen are converted to carbondioxide and water and energy is released which form ATP.
A population of water beetle lives in a small pond on a cattle range. During a severe drought, a herd of cattle accidentally drink up many water beetles from a water source, preventing the beetle's genes from being passed to future generations. Which of the following evolutionary mechanisms is represented by this scenario?
A.Gene Flow
B.Genetic Drift
C.Independent Assortment
D.Mutation
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5. Mary has blood type A and she marries John , whose blood type is B. They have three
children: Joan. James and Pete. Joan has blood type 0, James has blood type A, and Pete has
blood type B. Explain how this is possible.
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Answer:
Mary's genotype must be IAi while John's must be IBi. When the gametes met up at each conception, Joan got ii, James got IAi, and Pete got IBi.
Explanation:
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most animal cells are surrounded by a layer of water with dissolved substances. For animals cells to function normally, there should be equal amounts of water diffusing into and out of the cell. Which type of surrounding fluid would result in equal amounts of water diffusing into and out of a cell?
A. Water with a higher concentration of solutes than the cytosol.
B. water with a lower concentration of solutes than the cytosol.
C. Water with the same concentration of solutes as the cytosol
Answers
Answer:
The fluid is called= isotonic
Explanation:
In an isotonic environment, the relative concentrations of solute and water are equal on both sides of the membrane. There is no net water movement, so there is no change in the size of the cell. When a cell is placed in a hypotonic environment, water will enter the cell, and the cell will swell.
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Acid rain pollutes a lake and makes the water acidic, as a result many aquatic plants in the lake die. How will the loss of these plants most likely affect the lake ecosystem
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The loss of aquatic plants in a lake due to acid rain pollution is likely to have significant impacts on the lake ecosystem.
Aquatic plants play crucial roles in the lake ecosystem. They provide food and habitat for a variety of organisms, including insects, fish, and other aquatic species. The loss of these plants can disrupt the balance of the ecosystem and lead to several consequences. Firstly, the absence of plants reduces the availability of food sources for herbivorous organisms, causing a decline in their populations. This, in turn, can affect the predators that depend on these herbivores for food.
Secondly, aquatic plants contribute to oxygen production through photosynthesis. With their loss, the dissolved oxygen levels in the water may decrease, leading to oxygen depletion and potentially harming fish and other oxygen-dependent organisms. Additionally, plants help stabilize the lake bed and prevent erosion, so their absence can lead to increased sedimentation and turbidity, affecting water clarity and light penetration, which further impacts other organisms.
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Are eukaryotes multicellular or unicellular or both?
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Where does competition for reproduction most likely occur?
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In humans, the "A" allele codes for Type A blood, the "B" allele codes for Type B blood, and the "o" allele codes for Type O blood. "A" and "B" are both dominant to "o." A and B are co-dominant to each other.
What is the probability of a Type AB parent and a Type O parent producing a Type AB child?
A. 50%
B. 25%
C. 0%
D. 100%
Answers
what is the botanical name of milk
Answers
Answer:
Milk of magnesium's scientific name is magnesium hydroxide, and the scientific name for milk of sulfur is precipitated sulfur.
The botanical name of milk is not applicable, as it is not a plant or a plant product. Botanical name is the scientific name given to plants, fungus and algae.
Milk is a nutrient-rich fluid produced by mammals. It is frequently consumed as a source of nutrients and is renowned for having a lot of calcium. Water, lipids, proteins, carbs, vitamins, and minerals are all present in milk in complicated proportions.
There is no particular botanical name for milk in the field of biology, which is the study of plants and their categorization. Different plant species are identified and categorized using botanical names.
Milk lacks a botanical name since it is a byproduct of animals, not plants.
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Is tRNA used in the Calvin cycle
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DNA Unit Test (Spring 2021) / 19 of 29
What is most likely to result when a mutation affects a DNA sequence?
A. The codons will be unable to create bonds with the enzymes.
B. The nucleic acids will be unable to create bonds with the ribosomes.
C. The amino acid sequence will be changed and a different protein will be formed.
D. The protein sequence will be changed and a different set of nucleic acids will be formed.
Answers
Answer:it’s A
Explanation:
What is the citric acid cycle.
Answers
Answer:
Citric acid cycle also known as the Krebs cycle, is the second stage of the three-stage process by which living cells break down organic fuel molecules in the presence of oxygen to harvest the energy they need to grow and divide.
CHECK
Understanding
Apply Vocabulary
Use the highlighted words from the lesson to
complete each sentence correctly.
1. __________ are the basic units of all living things.
2. According to the
, all living things are
made of cells.
3. Cells whose DNA is held in a nucleus are
Answers
Find the completed sentences below:
1. Cells
The fundamental membrane-bound entity that houses the essential molecules of life and is the building block of all living things. As in the case of bacteria or yeast, a single cell is frequently an entire organism unto itself. As they develop, other cells acquire specialized roles. They form the foundation for huge multicellular organisms like humans and animals.2. The cell theory
It states that every living thing is made up of one or more cells, which are the basis of life. Additionally, new cells can emerge from older ones.Later, this idea benefited greatly from the contributions of Rudolf Virchow.3. Eukaryotes
these are cells which have a nucleus in them along with membrane bound cell organelles.The majority of algae, all animals, plants, fungi, and protists are eukaryotic organisms. Eukaryotes are multicellular or unicellular organisms.Learn more about cells and cell theory here:
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in biology Validity refers to what
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in biology validity refers to a test measures what it purports to measure.
First, we have to establish the validity of a test score when used for a particular purpose, so that a score may be improperly used for one purpose, but not for anotherSecond, validity is a matter of degree so that we know if validity is sufficient to make use of the test worthwhileThird, we must distinguish between validity n accuracy of norms of a test so that we know if It's possible for a test to have a good validity but have norms that is off the mark. The converse may be also true.Validity is the main extent to which a concept, conclusion or measurement is well-founded and likely corresponds accurately to the real world. The word "legitimate" is derived from the Latin validus, meaning robust. The validity of a size device is the diploma to which the tool measures what it claims to measure.To know more about validity visit :
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12, What is a Control in an experiment?

Answers
Answer:
the factor that stays the same and doesnt change, its used to compare data between different variables
Explanation:
scientific definition of metamorphosis
Answers
Metamorphosis is considered as the striking in structure or appearance in an individual after hatching or birth.
Metamorphosis is considered as the transformation of the larva into an adult through series of changes . Metamorphosis is also known as the biological process that involves in the sudden and abrupt changes occurred in the body structure of the animal with the series of cell growth and differentiation. This process is generally active in amphibians and insects.
Hence, this is the process through which animals can undergo, rapid physical changes after the time of birth. Metamorphosis can change organism's entire body plan.
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If the cell membrane is permeable to the solute, and there is a greater amount of solute outside the cell, what will the solute do?
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how much nervy is needed to melt 90g at 0°C
Answers
Answer:
I don't know I'm sorry I will tell you another answer asks me to
In Drosophila melanogaster, vestigial wings are caused by a recessive allele of a gene that is linked to a gene with a recessive allele that causes black body color. Morgan crossed Mack-bodied, normal-winged females and gray-bodied, vestigial-winged males. The F_1 were all gray bodied, normal winged. The F_1 females were crossed to homozygous recessive males to produce testcross progeny. Morgan calculated the map distance to be 17 map units. Which of the following is correct about the testcross progeny? A) black-bodied, normal-winged flies = 17% of the total B) black-bodied, normal-winged flies PLUS gray-bodied vestigial-winged flies = 17% of the total C) gray-bodied, normal-winged flies PLUS black-boded, vestigial-winged flies = 17% of the total D) black-bodied, vestigial-winged files = 17% of the total A couple has a child with Down syndrome. The mother is 39 years old at the time of delivery. Which of the following is the most probable cause of the child's condition? A) The woman inherited this tendency from her parents B) The mother had a chromosomal duplication. C) One member of the couple underwent nondisjunction in somatic cell production. D) The mother most likely underwent nondisjunction during gamete production. Imagine that you've isolated a yeast mutant that contains histones resistant to acetylation. What phenotype do you predict for this mutant? A) The mutant will grow rapidly. B) The mutant will require galactose for growth. C) The mutant will show no gene expression. D) The mutant will show high levels of gene expression. DNA methylation and histone acetylation are examples of ______, A) genetic mutation B) chromosomal rearrangements C) transcriptional regulation D) translocation Cinnabar eyes is a sex-linked, recessive characteristic in fruit flies. if a female having cinnabar eyes is crossed with a wild-type male, what percentage of the F_1 males will have cinnabar eyes? A) 0% B) 25% C) 33% D) 50% E) 100% The reason for differences in the sets of proteins expressed in a nerve and a pancreatic cell of the same individual is that nerve and pancreatic cells contain different _______. A) genes B) regulatory sequences C) coiling pattern in these two genes D) promoters E) operators Start codon in prokaryotes is ________. The tRNA carrying this amino acid is brought to the start site by the protein _____ A) AUG IF3 B) AGG IF2 C) AUG EF3 D) UAG IF3 E) AUG IF2 Two nucleotides are held together by _______ bond and two amino acids are held together by ______ bond A) Nucleic acid and peptide bond. B) Hydrogen and peptide bond C) Phosphodiester and glycosidic bond D) Phosphodiester and peptide bonds E) Glycosidic and ester bonds All unsaturated fatty adds are _______ and _____ in nature A) trans and pi bond B) cis and even C) cis and odd D) trans and even E) cis and od
Answers
Answer:
A
Explanation:
1. B) black-bodied, normal-winged flies PLUS gray-bodied vestigial-winged flies = 17% of the total
2. D) The mother most likely underwent nondisjunction during gamete production.
3. C) The mutant will show no gene expression.
4. C) transcriptional regulation
5. D) 50%
6. B) regulatory sequences
7. E) AUG IF2
8. D) Phosphodiester and peptide bonds
9. B) cis and even
1. The testcross progeny would most likely be option B) black-bodied, normal-winged flies PLUS gray-bodied vestigial-winged flies = 17% of the total.
2. The most probable cause of the child's Down syndrome is option D) the mother most likely underwent nondisjunction during gamete production.
3. The phenotype predicted for the yeast mutant that contains histones resistant to acetylation is option C) the mutant will show no gene expression.
4. DNA methylation and histone acetylation are examples of option C) transcriptional regulation.
5. If a female with cinnabar eyes is crossed with a wild-type male, the percentage of F1 males with cinnabar eyes would be option D) 50%.
6. The reason for differences in the sets of proteins expressed in a nerve and a pancreatic cell is that they contain different option B) regulatory sequences.
7. The start codon in prokaryotes is option A) AUG IF3. The tRNA carrying this amino acid is brought to the start site by the protein IF2.
8. Two nucleotides are held together by a phosphodiester bond, and two amino acids are held together by a peptide bond.
9. All unsaturated fatty acids are option B) cis and even in nature.
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What is the main function of the structure that is identified as B in the picture above?
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Answer:
nothing as of right now
Explanation:
where is the pic?
Answer:
It supports the plant.
Explanation:
the definition in a cladogram
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Answer:
a branching diagram showing the cladistic relationship between a number of species
The __________ , on the posterior thorax, are roughly triangular in shape. They have no direct attachment to the axial skeleton but are held in place by trunk muscles.
Answers
According to the research, the correct term to fill the blank space is scapula. The scapula, on the posterior thorax, are roughly triangular in shape. They have no direct attachment to the axial skeleton but are held in place by trunk muscles.
What is the scapula?It is a spacious bone each responsible for supporting muscles that is part of the shoulder and has a triangular shape forming part of the shoulder girdle.
In this sense, it is located in the upper limb, just in the posterior-superior area of the thorax and functions as a stabilizer of the shoulder joint complex, working as an anchor for the shoulder and dorsal back muscles.
Therefore, we can conclude that according to the research, the correct term to fill the blank space is scapula. The scapula, on the posterior thorax, are roughly triangular in shape. They have no direct attachment to the axial skeleton but are held in place by trunk muscles.
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Matthew claims that people should invest in alternative sources of energy rather than burning fossil fuels
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Answer:
Ok. What is his reasoning?
Explanation: Because if he belives it is true he is aloud to have a belief but I would like to understand his reasoning
Help! will make the brainiest
Answers
radiant and dense
Explanation:
The radiant energy from the sun is transferred to the atmosphere causing air movement The air becomes less dense so it rises
The fruiting body found above ground in fungi is called the
A. cap.
B. hyphae.
C. mycelium.
Answers
Answer:
fruiting body is called cap
The mycelium is the fruiting body found above ground in fungi.
The pileus is the technical name for the cap, or cap-like part, of a basidiocarp or ascocarp (fungal fruiting body) that supports a spore-bearing surface, the hymenium.
A hypha is a long, branching, filamentous structure of a fungus, oomycete, or actinobacterium. In most fungi, hyphae are the main mode of vegetative growth, and are collectively called a mycelium.
A mycelium is a network of fungal threads or hyphae. Mycelia often grow underground but can also thrive in other places such as rotting tree trunks. A single spore can develop into a mycelium. The fruiting bodies of fungi, such as mushrooms, can sprout from a mycelium.
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You are comparing a reaction that produces a chemical change and one that produces a physical change. What evidence could you use to determine which type of change is occurring?
Answers
Answer:
There are no specified options in this question but the answer will be provided elaborately in order to fully comprehend it.
Please find the detailed answer in the explanation section.
Explanation:
Matter undergoes two types of changes viz: physical and chemical changes. A physical change, as the name suggests, involves a change in the physical nature of matter. A physical change does not change the chemical property of the substance involved. Since there is no chemical modification to the substance, no new substance is formed from a physical change. Hence, the substance only undergoes a change of state. For example, water (liquid) changing to ice (solid) is a physical change. Physical changes are usually reversibleb i.e. can be changed back to their previous form.
Chemical change is another type of change in which substances undergo a change in their chemical properties to form new substances. Changes like formation of gas bubbles, change in temperature, color change etc will be noticed during chemical changes. Examples of chemical changes are rusting, burning because they irreversibly change the chemical composition of the substances involved etc.
In a nutshell, in order to determine the type of change occuring in a reaction, one should look out for whether or not there is a change in nature of the substance leading to the formation or not of a new substance.
Answer:
Answer is in the Explanation Section
Explanation:
Either way, matter, physical and chemical changes are pretty much the same... Put it this way if you have a match and you light it what happens? If you said it burns your right! If not it is okay we all are not right. Because it is with the chemicals it's made with and adding oxygen makes it burn and breathe so it can burn freely.
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Word Bank: Simple cuboidal, Stratified cuboidal, Simple columnar, Stratified columnar, Transitional, Pseudo-stratified columnar, Simple squamous, Stratified squamous +
Answers
The given tissue diagram represents following tissues:
2. Stratified cuboidal
3. Pseudo-stratified columnar
4. Stratified squamous
5. Simple cuboidal
6. Simple squamous
8. Transitional
What is epithelium?
All of your body's internal and external surfaces are covered by a type of tissue called epithelium, which also lines your digestive, reproductive, and excretory tracts. They carry out numerous tasks, including secretion, sensing, absorption, and protection.
Epithelial tissue is divided into three types based on the morphology of the cells: squamous, cuboidal, and columnar.The tissue is classified as simple or stratified depending on the number of layers. Pseudo-stratified, ciliated, or transitional are examples of sub classifications. The cells of the glandular epithelium synthesize and expel a variety of macromolecules.
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identify 3 organisms that belong in the same phylum as Protozoans
Answers
Answer:
Algae, Protozoa, Heterotrophs
Explanation: