What’s one example of a real-world problem which you might use knowledge from biological anthropology to help solve?
Answer:
Biological anthropology shows that cultural contexts are useful to explain human evolution.
Explanation:
Biological anthropology is a research area focused on the study of biological and behavioral determinants associated with human evolution. Biological anthropology enables us to trace the evolutionary origins of hominids and primates in general. Moreover, this discipline also sheds light on how different environments act on the mechanism of natural selection and thus shape human behavior. However, biological anthropology should not be considered to be part of social Darwinism used to apply Darwin's ideas to social policies.
True or false. If Americans decided to eat more chicken and less beef, the future size of the chicken population would increase and the cattle population decline. True False True or false. Resources that are commonly owned are likely to be over-utilized and poorly maintained. True False True or false: Ocean fisheries are generally owned in common; as a result, the quantity of various species such as salmon are often overfished.
Answer:
The given first statement is true, that is, with the increase in the demand for chicken, the chicken market will rise, and in the same way with the decline in the demand for beef, the production of cattle will decrease based on the law of demand.
The given second statement is also true, as the resources mentioned in the given statement is a tragedy of commons as the common access resources are rivalrous and non-excludable.
The given third statement is also true, as the mentioned ocean fisheries is a tragedy of commons as the common access resources are rivalrous and non-excludable.
Which of Newton's laws of motion is the "action-reaction" law? A. first B. second C. third pls help i really need help asap
[tex] \large \longrightarrow \mid \mathbb{ \bf\pink{ANSWER}} \mid \longleftarrow[/tex]
Newton's 3rd law of motion is the " action - reaction " law .
This 3rd law states that ;
If a body A applies a force on body B then body B also applies force on body A which is equal in magnitude and opposite in direction .
In simple terms it is stated as ;
For every action there is an equivalent opposite reaction .
This is represented as ;
[tex]\tt{ {F}_{AB} = - {F}_{BA} }[/tex]
Example :-
When a birds flys in the air it pushes the air with it's wings downwards ( action ) . Similarly, the air pushes the bird upwards ( reaction ) .
in the diagram below, what part of the digestive system is labeled A?
The question is incomplete as the diagram is missing, however, a digestive system diagram is attached related to question:
Answer:
The answer is - the salivary gland in the oral cavity.
Explanation:
The oral cavity called to the initial segment of the digestive system. Its essential capacity is to fill in as the passage of the nutritious tract and to start the digestion related procedure by salivation and propulsions of the wholesome bolus into the pharynx.
Portions of the mouth incorporate the lips, vestibule, mouth depression, gums, teeth, hard and delicate sense of taste, tongue and salivary organs
Which center bears the primary responsibility for generating the respiratory rhythm, but is influenced by several other centers
Answer:
This is the Ventral Regulatory Group-VRG
Explanation:
In the medulla,there are four groups of neurons which forms the exhalation parts of the respiratory control.These 4 groups are called the VRG.They occupy 5mm anterior in length, and laterally positioned to the dorsal respiratory group.They are therefore said to occupy the ventrolateral part of the medulla.
The dorsal respiratory group(DRG) consists of the inspiration neurons,contrary to the VRG. They do not extend to the DRG,but the DRG, extends to them
They(VRG) function in propagating action potentials needed for the mechanisms of respiration.(exhalations), and Inspirations
(a)The same kind of plants grown & cultivated on a large scale at a place is called_____ (b) The first step before growing crops is _______ of soil. (c) Damaged seeds would ________ on the surface of water. (d) For growing a crop, sufficient amount of sunlight,_______ & _______ from the soil are essential. (e) Paddy & maize are kind of ________crops (f) Animal excreta, cow dung, urine & plant waste are used to make ______ (g) Urea & superphosphate are kind of________ (h) Wheat, pea are kinds of ________ crops
Answer:
Following the answers are given below:-
Explanation:
(a) Plants of the same type that are grown and grown at a large-scale spot are referred to as crops. They are mostly cultivated for useful products.
(b) The very first step in the growth of plants is soil time to prepare to easy way to help water infiltration, appropriate oxygenation, and soil microbial economic expansion. Soil program includes the softening and attempting to turn of plant roots through all the plow procedure. The next step in growing crops is the collection of safe crops that is performed for some time by placing the seed in a water-filled flask.
(c) Infected seeds are lighter and hollow in strength and therefore rise at the top of the atmosphere. The good seeds calm down a bit at the edges, becoming heavier, which is used for sowing.
(d) Sunlight, water, and nutrients are essential requirements for seed germination and seedling growth. Seed seeding to the right depth and adequate spacing among seeds and seedlings confirm that these criteria are fulfilled.
(e) The principal Kharif crops in India are corn, maize, and cotton.
(f) individuals are used for producing plant manure.
(g) A combination of calcium acid phosphate and calcium sulfate formed by processing sulfuric phosphate stone: used primarily as a phosphate.
(h) Vegetables and lean meats are the two major categories of commercial grain crops. The word applies primarily to seeds from family Fabaceae plants, such as wheat, corn, and rice; seeds of non-edible vegetation types are often referred to as "grains."
Which of the following would you use to inhibit the contraction of muscle in vitro as a control for an experiment you are conducting?
A. a motor protein ATPase inhibitor
B. a drug that increases T-tubule depolarization
C. a drug that increases sarcoplasm Ca2+ concentration
D. a Ca2+-ATPase inhibitor
E. All would inhibit muscle contraction.
Answer:
The correct answer is option A. a motor protein ATPase inhibitor.
Explanation:
Motor proteins are sub-atomic motors that utilize ATP hydrolysis to move along cytoskeletal filaments inside the cell. They satisfy numerous capacities inside the biological system, controlling the sliding of filaments for muscle contraction and intervening intracellular movement along biopolymer filament tracks.
The two globular head motor areas in heavy chains can change over the chemical energy of ATP hydrolysis into mechanical work to move along microtubules.
Thus, in vitro experiment inhibitor of the motor protein, ATPase will be a control.
You have isolated a mutant of Shigella dysenteriae bacteria that is resistant to kanamycin, and you want to find out what gene is responsible. Design a protocol using genetic selection to identify it
Answer:
It is possible to identify the function of a gene by site-specific targeted mutagenesis (i.e., by using a reverse genetics approach).
Explanation:
Targeted mutagenesis is an approach widely used in molecular biology in order to determine the functions of endogenous genes. Targeted mutagenesis is a type of genetic technique known as reverse genetics since it is a technology that enables to identify the function of a gene by modifying its product (i.e., its corresponding messenger RNA), thereby synthesizing non-functional proteins.
Moreover, it is also possible to identify the function of a gene by altering its expression, for example, by using small interfering RNAs (siRNAs) that inhibit protein translation through RNA interference (RNAi) mechanisms.
human infection of Toxoplasma is initiated in all the following ways except : 1. accidental ingestion of rodent feces 2.ingestion of contaminated undercooked meatform cattle, pigs, or sheep 3.ransplacental infection 4. Transplacental infection 5.Transfusion of contaminated blood
Answer:
1. accidental ingestion of rodent feces
Explanation:
Toxoplasma comes from infection with the Toxoplasma gondii parasite, which is a parasite found in cat feces.
Hope this helps.
Do eukaryotic cells replicate their DNA in the cytoplasm and nuclus?
An atom has a mass of 35 a neutron mass of 35 and an electron mass of 35. What is the estimated mass of the atom
Answer:
The estimated mass of the atom is 70
Explanation:
(35 protons + 35 neutrons)
The lock-and-key mechanism refers to a) the complementary shapes of an enzyme and a substrate. b) the attractive forces between an enzyme and a substrate. c) the ability of an enzyme to lower the activation energy of a reaction. d) the ability of an enzyme to “unlock” the products of a reaction.
Answer:
A. The complementary shapes of an enzyme and a substrate
Explanation:
The Lock-and-Key model was made to show how an enzyme's active zone fits a substrate and how they bond together. It correlates just like a lock and a key; you have to have the correct-shaped key in order to open a lock. Same process of thought with the enzymes; you must have the same shape for both in order to bind together,
Answer:
d
Explanation:
A certain red-flowered plant is self-fertilized. The progeny are 131 white-flowered plants and 169 red-flowered plants. Give a genetic explanation for these observations.
Answer:
Ratio of red flowers: white flowers = 169: 131 = 9: 7 as given in the question. It is clear that the color is possible only by at least 2 genes.
Let assume genes are A and B.
Now the cross AaBb (Red) x AaBb (Red)
Gametes ----------> AB Ab aB ab AB Ab aB ab
AB Ab aB ab
AB AABB (Red) AABb (Red) AaBB (Red) AaBb (Red)
Ab AABb (Red) AAbb (White) AaBb (Red) Aabb (White)
aB AaBB (Red) AaBb (Red) aaBB (White) aaBb (White)
ab AaBb (Red) Aabb (White) aaBb (White) aabb (White)
The ratio of Red flowers: White flowers is 9:7
The red color flower is produced when both the alleles of genes are dominant. if any of the alleles of genes is recessive, it will produce the white color flower. This is one of example complementary gene interaction where the presence of both genes in the dominant form complements each other to produce red color flowers.
Judging from their basal metabolic rates (an indicator of thyroid function), categorize the rats as hypothyroid (low thyroid levels; BMR below 1600), euthyroid ("good," or normal, thyroid levels; BMR = 1650-1750), or hyperthryoid (high thyroid levels; BMR above 1800). The normal rat is:_______.a. hypothyroid.b. euthyroid.c. hyperthyroid.
Answer:
Option b (Euthyroid) is the correct option.
Explanation:
The condition of obtaining everyday activities including its thyroid gland. Compare hyperactive (overactive) as well as hypothyroid (under-active) type thyroidsThe BMR (Basal metabolic rate) has always been regulated by the hypophyseal or otherwise thyroid glands, thyroxine significantly reduces metabolism.Its normal rate will be:
⇒ [tex]1673 - 1735 \ ml / O_{2}/ kg/ hr[/tex]
The other choices have no relation with the particular situation. So the argument presented however is the right one.
7. Which is a way that geological processes affect nutrient cycling?
People burn coal, oil, and natural gases.
o Weather controls when volcanoes erupt.
O People use ocean currents to predict rain.
O Weather moves gases in the atmosphere.
Answer:
Weather moves gases in the atmosphere.
Explanation:
Weather moves gases in the atmosphere. Therefore, option (A) is correct.
What is nutrient cycling?Nutrient cycling is the process by which nutrients are transformed, transported, and exchanged between different parts of an ecosystem. Nutrients are essential for the growth and survival of all living organisms, and they are constantly being recycled through various processes in the environment.
For example, plants absorb nutrients from the soil and water, and then animals consume these plants and incorporate the nutrients into their own bodies. When animals die, their bodies decompose, releasing the nutrients back into the soil or water, where they can be taken up by plants again. This continuous flow of nutrients between living organisms and the environment is known as nutrient cycling.
Nutrient cycling is important because it helps to maintain the balance of nutrients in an ecosystem and supports the functioning of the ecosystem as a whole. It is influenced by many factors, including geological processes, weather patterns, and the actions of living organisms.
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Who first recognized that species were groups of organisms that were distinguished from other such groups by their ability to reproduce?
Answer:
John Ray
Explanation:
John Ray was widely known for his involvement in the establishment of species as the ultimate unit of taxonomy. He gave a widely accepted definition of the word species which made it clear including the fact that any seed derived from the same plant was the same species, despite it's different traits.
How does the length of the man compare to the length the of the yeast cell
Answer:
Yeast, any of about 1,500 species of single-celled fungi, most of which are in the phylum Ascomycota, only a few being Basidiomycota. Yeasts are found worldwide in soils and on plant surfaces and are especially abundant in sugary mediums such as flower nectar and fruits. There are hundreds of economically important varieties of ascomycete yeasts; the types commonly used in the production of bread, beer, and wine are selected strains of Saccharomyces cerevisiae. Some yeasts are mild to dangerous pathogens of humans and other animals, especially Candida albicans, Histoplasma, and Blastomyces. As fungi, yeasts are eukaryotic organisms. They typically are …(100 of 333 words)
Explanation:
A hypothesis is a(n) ______________, while a theory is a(n) ______________.
Answer
this is a little vague. for hypthesis, you could use guess, assumption, or conjecture. for theory, you could use prinicple or well-supported idea.
Explanation:
Which of the following organisms have some strains that naturally carry a circular, 6.3-kb, 2-micron plasmid?
A. Escherichia coli
B. Saccharomyces cerevisiae
C. Agrobacterium tumefaciens
D. Drosophila melanogaster
Answer:
B
Explanation:
The correct answer for the organism with strains that naturally carry a circular, 6.3-kb, 2-micron plasmid would be Saccharomyces cerevisiae.
Most strains of Saccharomyces cerevisiae have been found to possess extrachromosomal elements in their nucleus. This extrachromosomal element is circular in nature and of about 2 microns and 6.3 kb without any known specific advantage or function.
Due to the simple nature of the yeast's plasmid, it has been a major source of study for the understanding and control of how replication works in eukaryotic organisms.
The correct option is B.
What is ovulation?
A. When an egg enters the fallopian tube
B. When an egg implants into the uterus
C. When an egg is produced in the ovary
D. When an egg is fertilized
Answer: A. When an egg enters the fallopian tube
Explanation:
Ovulation is when an egg is produced in the ovary. Therefore, the correct statement is option C.
What is ovulation?Ovulation is the process by which a mature egg is released from the ovary during the middle of the menstrual cycle. Ovaries contain thousands of immature eggs which then undergoes maturation and further develop.
When an immature egg reaches maturity, it releases into a single, fully developed egg that passes through fallopian tube towards the uterus. If the egg is fertilized by a sperm cell in uterus, it results in pregnancy.
If the egg is not fertilized, it will be expelled from the body during menstruation. This process is regulated by a hormones and feedback mechanisms, such as hypothalamus, pituitary gland, and ovaries. Several factors like stress, illness, and changes in body weight can affect ovulation and also the fertility.
Therefore, an egg is produced in the ovary during ovulation.
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Which of the following processes is/are example(s) of diffusion and/or osmosis that occur in your cells? Mark all that apply
a. O2/CO2 moving in/out of your blood cells as they flow through your lungs.
b. Na+ (sodium) & K+ (potassium) ions moving between the inside and outside of you nerve cells creating electrical impulses.
c. H2O moving in and out of all your cells to maintain homeostasis.
d. All of the above
e. None of the above
the answers are (a.) and (c.)
The examples of diffusion/osmosis that occurs in our cells are as follows:
O2/CO2 moving in/out of your blood cells as they flow through your lungsH2O moving in and out of all your cells to maintain homeostasis.DIFFUSION/OSMOSIS:
Diffusion is the process by which gaseous molecules move from a region of higher concentration to low concentration until they are evenly distributed. Osmosis, on the other hand, involves the movement of water from region where it is more concentrated to region where it is less concentrated via a semipermeable membrane.Both osmosis and diffusion are forms of passive transport, meaning that movement occurs down a concentration gradient. The following are examples of diffusion/osmosis that occur in human cells:O2/CO2 moving in/out of your blood cells as they flow through your lungsH2O moving in and out of all your cells to maintain homeostasis.Note that, option B is a form of active transport.
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Atrial and ventricular systole do not overlap under normal condition because of which of the following?
a) a delay of the action potential at the atrioventricular node
b) rapid conduction by the internodal pathway
c) rapid conduction by the bundle branches
d) the atriventricular node setting the pace of contractions
Answer:
) a delay of the action potential at the atrioventricular node
Explanation:
The reason for the short delay of 0.9s. is to ensure maximum contractions of the atrial to eject blood into the relaxed ventricles.(ventricular filing).
Thus when the atrial is contracting,the ventricles relax and vice versa.The short duration for the artrial contraction to occur for blood ejection into the relax ventricles guarantee that artial systole can not overlap the ventricle systole.
The artial must contract first for the ventricle fillings,and when this is completed,the atrioventricular valves closes,and blood flow through the aorta to the systemic circulation from the left ventricle and into the pulmonary circulation through the pulmonary vein.
This occurs simultaneously with both the R and L Artrial,and right and left Ventricles.
What are two main abiotic factors that affect organisms in marine ecosystems? A. Oxygen level and water temperature B. Predators and competition C. Salinity and water temperature D. Predators and food availability
Answer:
dear user the answer is option A.oxygen level and water temperature and C.salinity and water temperature.
hope this helps
if it's useful to u plz thank and try to mark as brainliest
Answer:
It would be A
Explanation:
T lymphocytes are responsible for ________ and maturation occurs in the ______ Group of answer choices the humoral immune response, bone marrow. the cellular immune response, thymus. producing antibodies, tonsils programming macrophages, bone marrow
Answer:
the cellular immune response, thymus.
Explanation:
T lymphocytes are cells which form a part of the immune system called the cellular immune response due to their responsive nature to foreign bodies.These cells originated from stem cells found in the bone marrow and they help to fight against any infections and cancerous cells in the body.
T lymphocytes are however also known to undergo their maturation in the thymus cells of the body.
It is often possible to predict the number of times a membrane protein crosses the membrane by determining how many short sequences of hydrophobic amino acids are present in the amino acid sequence of the protein. Choose the correct explanation. It is often possible to predict the number of times a membrane protein crosses the membrane by determining how many short sequences of hydrophobic amino acids are present in the amino acid sequence of the protein. Choose the correct explanation.
a. Sequences of hydrophilic amino acids are the segments of the protein that span the membrane.
b. Sequences of hydrophobic amino acids are the segments of the protein that span the membrane.
c. Sequences of hydrophobic amino acids are the segments of the protein that dissolve in the membrane.
d. Sequences of hydrophilic amino acids are the segments of the protein that dissolve in the membrane.
Sequences of hydrophobic amino acids are the segments of the protein that span the membrane. Thus option B is correct.
What are the levels of protein structure?
The Primary structure of proteins is the linear structure of amino acids formed by Covalent, peptide bonds to form primary structure of protein.
Secondary structure protein defined as the folded structures formed by hydrogen bonding among the amine and carboxyl group of the peptide chain and it finally form polypeptide then into protein.
These secondary structure present in two structure such as α – helix which form a polypeptide chain by hydrogen bonding and twisting into a right-handed screw with the -NH group of each amino acid residue.
The β – pleated sheet form of protein are stretched out ,laid side by side together by intermolecular hydrogen bonds.
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How the energy is transferred to animals that cannot Barnes energy directly from the sun
Answer:
Because animals cannot produce energy directly from the sun, they must eat plants or other animals that eat plants, and acquire energy, either directly or indirectly, from glucose
Explanation:
What is a possible effect of long-term environmental changes?
adaptation
migration
habitat loss
starvation
Answer:
adaptation
Explanation:
did the pre test
Long-term environmental changes can have various effects on the organisms and ecosystems that inhabit them, and one possible effect is habitat loss, which is the third option.
What are environmental changes?Long-term environmental changes are changes that occur gradually over time, such as changes in temperature, rainfall patterns, or atmospheric conditions, and can have significant impacts on ecosystems and the organisms that inhabit them. One of the primary effects of long-term environmental changes is habitat loss. For example, climate change is leading to melting ice caps, rising sea levels, and changes in weather patterns, which can impact habitats such as coral reefs, forests, and wetlands, causing them to shrink or disappear. This can result in the loss of habitat for many species, leading to declines in their populations and potential extinction.
Hence, long-term environmental changes can have various effects on the organisms and ecosystems that inhabit them, and one possible effect is habitat loss, which is the third option.
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A disadvantage of using an attenuated live microbe in a vaccine is that it can conceivably mutate back to a virulent strain.
a. True
b. False
Answer:
True
Explanation:
Live attenuated vaccine are vaccines that contain a weakened part of the live virus or bacteria and protect the immune response of people with healthy immune system and does not cause disease.
These type of vaccine create a strong immune response but does not work for people who have weak immune system.
Examples of live attenuated vaccines are,
Rotavirus vaccine
Nasal flu vaccine.
A disadvantage of live attenuated vaccine is that it can conceivably mutate back to a virulent strain,They can cause disease, due to genetic reversion or to infection of immunocompromised hosts.
Another disadvantage is that they are difficult to maintain and stored.
A cell has a defect in its receptor for growth factors, preventing growth factors from attaching to and signalling the cell. Based on this, which prediction below is most likely?
A. The cell will remain dormant in GO phase.
B. The cell will grow uncontrollably and continue to divide as long as it has food.
C. The cell will replicate its DNA but be unable to begin mitosis.
D. The cell will begin DNA replication but will be unable to complete S phase.
Answer:
Option B
Explanation:
B. The cell will grow uncontrollably and continue to divide as long as it has food.
Cell growth is theeoretically stimulated by the binding of growth factors to their receptors using signaling pathways.
These pathways are regulated by proteins which are encoded for in the genes.
The gene that controls the regulation of these pathway when mutated produce malfunctioning signaling protein thus not allow for regulations of the cell cycle causing uncontrollable cell division. These mutated genes are called oncogenes.
what is gamete A. Two chromosomes that are identical B. two sets of sister chromatids C. a diploid cell that split during meiosis D. a sperm or egg produced by meiosis
Answer:
A
Explanation:
Answer:
D
Explanation:
a sperm or egg produced by meiosis