Answers
Answer:
1 - square, round
2 - cell wall, vacuole
Related Questions
bacteria enter the body through contaminated foods, releasing harmful toxins that impair the body's ability to fight off infection. which body systems are involved in this scenario??
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Answer:
Immune System is involved to fight against bacteria.
A. Which two organisms are most closely related?
Answers
The cell membrane is a protective external layer that controls
which substances are allowed to enter and leave the cell. The
cell membrane performs the same function in the cell as which
structure in the human body?
Blood
Skeleton
Skin
Hair
Answers
Answer:
Skin
Explanation:
Skin is the protective external layer in the human body that allows substances such as water to leave/enter.
What% of DNA does a clone share with it's parent?
Answers
Answer: if its anasexual its 75%-100 if its a sexual its at a minimum of 50-25%
Explanation:
4. What term describes the reactants that an enzyme
acts on?
Answers
Place the following items in the correct order from most simple at the top to the most complex at the bottom. Drag and drop the terms until you have the correct order.
Tissue, organ system, atom, organelles complex organism, cell, molecules, Organ,
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Answer:
- atom
- molecules
- organelles
- cell
- tissue
- organ
- organ system
- complex organism
Explanation:
What methods are used
to classify living things
Into groups?
Answers
Explanation:
We can classify living things on these things:-
1) If they can carry out processes like respiration, ingestion.
2) If they move on their own
3) if they can talk
THIS WAS A FAIRLY SIMPLE QUESTION!
Where is DNA present inside a eukaryotic cell?
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Where is DNA present inside a eukaryotic cell?
Answer:NucleusAn _______________ is a group of organisms and other non-living parts of the environment that lives in an area.
Answers
Answer:
ecosystem
Explanation:
What skills are needed to an Executive Director of Animal Research?
Answers
Answer:
The Executive Director also serves as the Attending Veterinarian, and is responsible for long-range planning, leadership, and oversight of animal care and use at UC Davis. The position manages and strategically harmonizes the distributed operations of over 1 million square feet of animal holding space in 200+ buildings that are overseen by individual vivarium managers.
The Executive Director leads a team of stakeholders that are responsible for identifying solutions that balance multiple and often-competing resource priorities. Cabinet members may include the Sr. Associate Vice Chancellor-Planning, Delivery and Facilities; Sr Associate Vice Chancellor-Finance and Resource Management; Institutional Animal Care and Use Committee (IACUC) Chair; IACUC Administrator; Associate Vice Chancellor-Facilities Management; a Vivarium Facility Manager Representative; Office of Research Representative; User Group representation; and Faculty Advisors designated by the Academic Senate. Each cabinet member (stakeholder) has an equal voice to identify issues and advocate for their respective constituencies but with the equally important responsibility of finding solutions that balance multiple, and often competing, resource priorities and the overriding campus needs.
The Executive Director serves in a public information, training, consultative, and facilitating role on behalf of the University's programs of animal care and use. The Executive Director supports the academic mission by assuring compliance with all applicable federal, state, and local animal welfare regulations that govern the use of animals in research and teaching. The Executive Director works in collaboration with the IACUC and IACUC staff to ensure regulatory matters are addressed, and that animal welfare and research facilitation are balanced with efficient daily operations and long-range academic and facility needs. The Executive Director provides advice to campus animal facility management, animal users, and administration regarding current standards for research and animal care. Serves as an ad-hoc member of the Institutional Biosafety Committee and is required by law as the Attending Veterinarian to serve as a voting member of the IACUC. May also serve as a member of the Ca Dept of Fish & Wildlife Animal Welfare Committee. The Executive Director oversees TRACS (Teaching and Research Animal Care Services); the entity that provides husbandry services to the majority of laboratory animal users on the Davis and Sacramento campuses. The Executive Director supervises the Associate Directors responsible for Campus Veterinary Services (CVS) and Husbandry Services (HS). CVS consists of three senior veterinarians and four veterinary technicians as well as several student employees. These services provide routine veterinary care and project support for most research and teaching animals on and off the UC Davis campus; and are responsible for the Laboratory Animal Residency Program that provides post-doctoral training for veterinarians who wish to specialize in Laboratory Animal Medicine. Physical Demands: - Walk, crouch, kneel, bend, and lift heavy items or animals up to 50 lbs.
- Stand for long periods on hard surfaces (e. g., clinical facilities, surgical suites).
- Lift, move, and bend in the restraint and treatment of laboratory animals. Work Environment: - USDA endorsement or attainment within 1 year of hire. - Valid CA driver's license required. Position will participate in the Department of Motor Vehicles (DMV) Pull Notice System.
- Rabies Vaccination and/or titer, Hepatitis B Vaccination and/or titer other titers/vaccinations as recommended by occupational health physician.
- TB test or chest x-ray, measles vaccination or proof of illness is required prior to employment and annually thereafter.
- Employee is personally responsible for following health and safety guidelines/instructions.
- Must be able to perform assigned duties wearing restrictive protective clothing such as respirators and other personal protective clothing.
- This position is subject to Medical Surveillance procedures and review in accordance with Federal and State Laws and Regulations and University Policy.
- Work flexible schedule.
This position is a critical position and subject to a background check. Employment is contingent upon successful completion of background investigation including criminal history and identity checks. Yes Qualifications Minimum Qualifications: - Doctor of Veterinary Medicine degree (DVM) from a recognized and accredited school of veterinary medicine; Licensed DVM in a state, with the attainment of CA license within 1 year of employment
Optogenetics is a powerful tool that uses light to control the activity of specific neurons. These neurons contain artificially introduced light-gated ion channels. A number of different light-gated channels with different ion specificities have been either found in nature (such as the sodium-specific channelrhodopsin, originally found in green algae) or produced via genetic engineering (the production of a chloride ion-specific form of channelrhodopsin). There are also light-gated ion channels specific for potassium or calcium. Sort each light-activated channel type based on whether activation of this channel will tend to depolarize cells or not.
a. chloride channel
b. sodium channel
c. calcium channel
d. potassium channel
A. Promote Depolarization
B. Inhibit Depolarization
Answers
Answer:
Sodium and calcium promote depolarization
Chloride and potassium inhibit depolarization
Which natural material is most often used to make paper?
Will give BRAINLY
Answers
Answer:
I believe that A Wood is correct
Scientists want to determine whether the rapid economic growth in China between 1950 and 2000 caused a mass extinction of animal species during that time period. A mass extinction event is considered to occur when the rate of species extinction for exceeds the background extinction rate. The scientists collected data on the number of extinctions of selected vertebrate species in China between 1950 and 2000, as shown in below Table . Extinction rates were ascertained by measuring the werage percent of species lost(PSL).
The average percent of extinctions of 252 protected vertebrate specles in 2,365 countles in China from 1950 to 2000.
Mammals Birds Amphibians and Reptiles Background Rate
Average PSL ± 1 standard deviation 47.4 ± 339 19.75 ± 17.70 28.80 ± 28.86 27.21 ± 16.26
Which of the following is the null hypothesis most relevant for evaluating the data in Table?
a. There is no significant difference between the extinction rate of animals between 1950 and 2000 in China and the background extinction rate.
b. There is no significant difference between the extinction rates of mammals, birds, amphibians, and reptiles in China.
c. There is a significant difference between the extinction rate for mammals in China and the background extinction rate for mammals.
d. Because of climate change, habitat loss, pollution, and excessive exploitation of resources, China experienced a mass extinction event between 1950 and 2000.
Answers
Answer:
A
Explanation:
The null hypothesis is otherwise known as the hypothesis of no difference. In other words, the null hypothesis assumes that there is no significant difference between two or more data from populations that are being statistically compared. This is as opposed to the alternate hypothesis that assumes that there is a statistically significant difference between the data from the population being compared.
In the illustration, it is clearly stated that a mass extinction event occurs when the rate of species extinction exceeds the background extinction rate. Hence, the data collected on the extinction rates of different mammals need to be compared with that of the background extinction rate, and only a significantly higher extinction rate of the animals can lead to the conclusion that mass extinction has occurred.
The null hypothesis, therefore, would be that there is no significant difference between the extinction rates of the various animals and the background extinction.
The correct option is A.
The correct null hypothesis is "There is no significant difference in the rate of extinction of animals between 1950-2000 in China". Option A is correct.
The null hypothesis:It assumes that there is no difference between the two or more data that has been collected from the population and being statistically compared.
In the given scenario,
Scientists are looking for extinction rate differences of animal species between 1950 to 2000. Hence, option A is correct.Scientists are looking at the data as a whole not just as individual groups. Hence options B, C, and D are incorrect.Therefore, the correct null hypothesis is "There is no significant difference in the rate of extinction of animals between 1950-2000 in China".
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what stage of meiosis is seen here:
telophase
telophase 1
telophase 2
interphase
Answers
Answer:
It looks like Telephase 1
Yeasts are single-celled eukaryotic organisms. Yeasts undergo mitotic division when conditions are favorable. When limited nutrients are available, yeasts start dividing by the process of meiosis.
What is a likely reason for the change from mitosis to meiosis during reproduction under these conditions?
The process of meiosis produces greater numbers of yeast cells at a faster rate as compared to mitosis.
Crossing over of genes during meiosis increases diversity and the chance of survival of the next generation.
Duplication of genes during meiosis ensures efficient functioning of the newly formed yeast cells.
The yeast cells formed by meiosis are able to adapt as well as the parent cell because they are identical.
Answers
Yeasts change from mitotic to meiotic division when conditions are unfavorable because meiosis increases genetic diversity and improves their chances of survival in unfavorable conditions.
During meiosis, crossing over of genetic materials between non-homologous chromosomes creates genetic recombination and makes the resulting offspring to be genetically more diverse than their parents.
The increased genetic diversity will increase the chances of survival of the offspring in a constantly changing environment. In other words, the more genetically diverse a population is, the more their chances of surviving adverse environmental conditions.
More on genetic variability can be found here: https://brainly.com/question/13952713?referrer=searchResults
How does artificial selection cause rapid changes in the phenotypes of organisms?
A.By selecting dominant genotypes
B.By changing the number of
chromosomes
C.By changing the frequency of alleles and
selecting new combinations of traits
D.By stimulating the species to increase
the production of new mutants
Answers
Answer: A. By selecting dominant genotypes
Explanation:
Artificial selection or selective breeding can be defined as the induced breeding process in which humans select parents of plants and animals that have desired traits that are beneficial for them to produce offspring that have characteristics of both parents and they are of improved yield and quality. This brings the change in the phenotypes of the offspring as compared to the parents. As the passage of dominant desirable traits in the genotype from either of the parent when gets expressed then the phenotype of the organism also change.
The water vascular system of echinoderms (A) functions as a circulatory system that distributes nutrients to body cells. (B) functions in locomotion and feeding. (C) is bilateral in organization, even though the adult animal is not bilaterally symmetrical. (D) moves water through the animal’s body during filter feeding. 4. Which of the following combinations of phylum and description is correct? (A) Echinodermata—radial symmetry as a larva, coelom (B) Nematoda—roundworms, internal skeleton (C) Platyhelminthes—flatworms, gastrovascular cavity, no body cavity (D) Porifera—gastrovascular cavity, coelom
Answers
Answer:
The water vascular system of echinoderms (B) functions in locomotion and feeding.
Which of the following combinations of phylum and description is correct? (C) Platyhelminthes—flatworms, gastrovascular cavity, no body cavity
Explanation:
Echinoderms are marine animals. They have a water vascular system that make them able to move (locomation), respiration and food and waste transportation. This system is full of different canal along the body.
Echinodermata has not a radial symmetry as a larva, in fact it has a bilateral symmetry and coelom present. When it comes to Nematoda, they are roundworms and have a pseudocoelomate. Finally, porifera has a gastrovascular cavity and no coelom.
Euploid changes occur by which of the following developmental errors. A. Non-disjunction during Anaphase I of meiosis. B. Non disjunction during Anaphase II of meiosis. C. Failure of cell division and production of unreduced gametes during meiosis. D. Somatic doubling in the meristem leading to reproductive organs. E. Both A and B are correct. F. Both C and D are correct. G. All the answers are correct.
Answers
Answer:
A. Non-disjunction during Anaphase I of meiosis.
Explanation:
Euploidy is an alteration in the organism´s natural number of chromosomes. Individuals with euploidy express a different number of homologous chromosomes set than the one from the normal number.
The cause of this alteration is that homologous chromosomes do not separate during the anaphase of meiosis 1.
There are two types of euploidy:
Polyploidy: Increase in the number of chromosomes characteristic of a diploid complement. During anaphase 1, homologous chromosomes do not separate and migrate together to the same pole. One of the resulting gametes ends with the whole chromosomic material, while the other cell ends with non. The first one goes through the second phase of meiosis and forms two diploid gametes. Monoploidy: Decrease in the normal number of chromosomes. The individual only gets one set of chromosomes. This is a monoploid organism, n.Euploid changes usually takes place as a result of this below developmental errors: is A. Non-disjunction during Anaphase I of meiosis.
Euploidy can be regarded as chromosomal variation which usually take place on the entire set of chromosomes in a cell or an organism.Euploidy can comes in three ways which are;
monoploidydiploidypolyploidyEuploid is due to Non-disjunction that usually occur during Anaphase I of meiosis and this alterations is because of failure of homologous chromosomes to separate during the anaphase of meiosis 1.Therefore, option A is correct.
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Using the sliding flament theory, explain (or draw) the process of sarcomere shortening. Start from the point where calcium would interact with troponin. Make sure to discuss the roles of actin, myosin, and ATP.
Answers
Answer:
Calcium binds to troponin CTroponin T moves tropomyosin and unblocks the binding sitesMyosin heads join to the actin forming cross-bridges ATP turns into ADP and inorganic phosphate and releases energyThe energy is used to impulse myofilaments slide producing a power strokeADP is released and a new ATP joins the myosin heads and breaks the bindings to the actin filamentATP splits into ADP and phosphate, and the energy produced is accumulated in the myosin heads, starting a new cycle Z-bands are pulled toward each other, shortening the sarcomere and the I-band, producing muscle fiber contraction.Explanation:
In rest, the tropomyosin inhibits the attraction strengths between myosin and actin filaments. Contraction initiates when an action potential depolarizes the inner portion of the muscle fiber. Calcium channels activate in the T tubules membrane, releasing calcium into the sarcolemma. At this point, tropomyosin is obstructing binding sites for myosin on the thin filament. When calcium binds to troponin C, troponin T alters the tropomyosin position by moving it and unblocking the binding sites. Myosin heads join to the uncovered actin-binding points forming cross-bridges, and while doing so, ATP turns into ADP and inorganic phosphate, which is released. Myofilaments slide impulsed by chemical energy collected in myosin heads, producing a power stroke. The power stroke initiates when the myosin cross-bridge binds to actin. As they slide, ADP molecules are released. A new ATP links to myosin heads and breaks the bindings to the actin filament. Then ATP splits into ADP and phosphate, and the energy produced is accumulated in the myosin heads, which starts a new binding cycle to actin. Finally, Z-bands are pulled toward each other, shortening the sarcomere and the I-band, producing muscle fiber contraction.
Answer the questions below. Will mark the correct answer as brainliest and report irrelevant answers.
Answers
Answer:
The reasons are the following.
Explanation:
Bear can live on land in a very cold regions of earth with the help of its thick skin and more hair on its body.
Frogs lives on lands due to its body structure and food availability. It has sticky tongue that captures insects.
Humans lives on lands not in water due to its body structure because its body structure can't allow humans to live in water due to absence of gills.
Seagull lives in the aquatic ecosystem because seagull feeds on fishes and other marine animals.
Sharks lives in water due to its body structure such as gills that are used to respire in water and the shark can't respire without water.
Meerkat lives in the arid climate because they lives underground to save themselves from the environment and the presence of food.
Protea lives in desert due to their dry skin that can tolerate the warm temperature.
Lions lives in the jungle due to the presence of food such as deer, buffalo etc and warm environment.
Dragonfly lives on land and water due to feed on the larva of mosquitoes that is present in the water bodies and good environmental conditions.
During protein synthesis, what carries amino acids to the ribosome?
Answers
Answer:
tRNA
Explanation:
What is the difference between Desserts, Grasslands and Forests?
Answers
Answer:
yaeh
Explanation:
Forests occupy the most favourable environments, where moisture is adequate for growth and survival of a tall, dense vegetation dominated by trees. Deserts are found where moisture is so lacking that a continuous, permanent vegetation cover cannot be maintained. Grasslands lie between these two extremes
Explanation:
Desserts: A desolate terrain, especially one with little water or vegetation; a wasteland.
Grassland: An area dominated by grass or grasslike vegetation.
Forest: A dense collection of trees covering a relatively large area. Larger than woods.
How do T cells coordinate the immune system?
Answers
Answer: Helper T cells, or Th cells, coordinate immune responses by communicating with other cells. In most cases, T cells only recognize an antigen if it is carried on the surface of a cell by one of the body's own MHC, or major histocompatibility complex, molecules.
Explanation:
Answer:
T cells identify pathogens based on antigens on the surface of pathogens. The T cells then multiply and stimulate B cells to produce antibodies. The antibodies attach to the antigens, making the pathogens a target for phagocytes.
Explanation: sample response
HI
Which of the following is not a possible effect of increasing carbon dioxide levels in the atmosphere? a. increase in water contamination and floods b. ocean acidification c. cutting down forests d. reduction of cold-related deaths
Answers
Answer:
C. Cutting down forests.
Explanation:
Carbon dioxide is an inorganic gaseous molecule with the chemical formula, CO2. It is naturally released into the atmosphere via a lot of processes. However, CO2 is the most important greenhouse gas as it contributes the most to the global warming effect of the Earth.
The effects of an increase in CO2 concentration in the atmosphere is as follows:
- increase in water contamination and floods
- ocean acidification
- reduction of cold-related deaths
However, the cutting down of forests is not an effect of an increase in CO2 concentration but rather a cause.
Answer:
C
Explanation:
Edg 2020-2021
How are liquid wastes treated at a wastewater treatment plant?
Answers
Answer:
They are released into a river, lake, or ocean.
Explanation:
The leaves of plants have layers that perform different functions. The_____ layer contains chlorophyll which carries out most of the photosynthesis in the leaf.
Answers
Answer:
The palisade layer
Explanation:
The palisade mesophyll layer of the leaves is a layer of columnar cells that contain many chloroplasts. This layer is localized right below the epidermis and cuticle of a leaf. The chloroplasts localized in this layer contain chlorophyll, which is the green pigment used to absorb light in order to carry out photosynthesis.
Hemophilia is a recessive sex-linked disorder. A man with hemophilia has a daughter of normal phenotype. She marries a man who is normal for the trait. What is the probability that a daughter of this mating will be a hemophiliac? That a son will be a hemophiliac? If the couple has four sons, what is the probability that all four will be born with hemophilia.
Answers
Answer:
Hemophilia is an X-linked recessive trait.
Explanation:
A non-hemophiliac father and a hemophiliac mother have a son.
What is the percent chance that the son will be a hemophiliac?
plants,protists,animals and fungi are made up of cells. true or false?
Answers
Look at the pedigree below, does anyone in the 4th generation have cystic fibrosis?
A No
B Yes, just Child 2
C Yes, Child 1 & 2
D Yes, Child 3
E Yes, just Child 1
Answers
I think that is the answer
Answer:
C
Explanation:
Child 1 and 2 are both filled in and Child 3 is a carrier, as indicated by the key to the right of the pedigree.
If dylan which has AB- has kids with O blood, could they have a child with O blood. Explain..
Answers
Answer:
They could not have O blood because blood types A and B are dominant and O blood is recessive. The only way They could have a child with type O blood is if Dylan was a carrier.
Explanation:
Punnet squares!