Answer:
The correct answer is - 11.25
Explanation:
Given:
Average weight gain between weeks 2 and 4 = 10 grams
The narrow-sense heritability of the weight gain between 2 and 4 weeks
= 25%
Then
Average weight gain would be expected among the offspring of parents whose average gain was 15 grams-
by the formula:
Average weight gain between weeks + (h) (Average weight gain between weeks - parents average gain )
= 10 + 0.25 (15-10)
= 10 + 0.25 (5)
= 10 + 1.25
= 11.25
Thus, the correct answer is - 11.25
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.
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.
During the early stages of meiosis, two chromosomes in a homologous pair may exchane
segments, producing genetic variation in sex cells. This process of exchange is called
Select one:
a. crossing over
b. nondisjunction
c. transcription
O d. genetic shuffling
Check
Answer:
The answer is option A.
crossing over
Hope this helps you
Which is a disaccharide?
Answer:
Disaccharidases are glycoside hydrolases, enzymes that break down certain types of sugars called disaccharides into simpler sugars called monosaccharides. In the human body.
Explanation:
Disaccharide, also called double sugar, any substance that is composed of two molecules of simple sugars (monosaccharides) linked to each other. ... The three major disaccharides are sucrose, lactose, and maltose.
Three common disaccharides:
#sucrose — common table sugar = glucose + fructose.
#lactose — major sugar in milk = glucose + galactose.
#maltose — product of starch digestion = glucose + glucose.
A disaccharide is a sugar that can be created when two monosaccharides are linked together with glycosydic. Disaccharides are soluble in water and a few examples of this are; maltose, sucrose, and lactose. Finally, they’re also one of four chemical linkings for carbohydrates.
Best of Luck!
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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In the active site of the enzyme lotzase, a mutation of lysine 132 toaspartic acid causes a loss of lotzase function. Lotzase is most catalytically active at pH 7. Which is the following is the best reason why this might occur?
a. a negative charge is needed for substrate binding.
b. a positive charge is needed for substrate binding.
c. a general acid is needed for catalysis to occur.
d. more than one of the following can be a good reason.
Answer:
B. positive charge is needed for substrate binding
C. a general acid is needed for catalysis to occur
Explanation:
A mutation of lysine 132 toaspartic acid causes a loss of lotzase function as a result of the enzyme lotzase being most catalytically active at pH 7( neutral).
This condition is however achieved under conditions such as a positive charge being involved in the substrate binding and a general acid being involved in the catalytic process.
Biodiversity can be studied at which of three levels?
Answer:
genetic diversity, species diversity, and ecosystem diversity.
Explanation:
Answer:
Biodiversity is usually explored at three levels - genetic diversity, species diversity and ecosystem diversity.
Explanation:
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.
Frances hits a cue ball into a rack of billiard balls, sending the balls in many
different directions. After a few seconds, all the balls on the table stop
moving.
Answer:
Left and right
Explanation:
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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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
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.
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
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:
Summarize the role of bacteria in keeping the nitrogen cycle balanced.
Answer:
dear user
the answer is given above
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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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.
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.
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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What is an advantage of nuclear power plant over coal power plant?
cost and lack of nuclear waste
Explanation:
One reason the skeletal system is important is because __________. A. without the skeletal system, an individual would not have enough calcium to live B. the skeletal system creates the connective tissue and tendons that allow the body to move C. the skeletal system is solely responsible for housing the body's immune system D. the skeletal system is responsible for controlling functions of the entire body Please select the best answer from the choices provided. A B C D
Answer:
b
Explanation:
One reason the skeletal system is important is because the skeletal system creates the connective tissue and tendons that allow the body to move, hence option B is correct.
What is skeletal system?The skeletal system is an arrangement of numerous components that cooperate to support your movement.
Your bones, which are solid objects that form the skeleton of your body, make up the majority of your skeletal system. The skeleton of an adult human has 206 bones.
Your body's skeletal system serves as a support system for it. It offers protection for organs, generates blood cells, gives the body its structure, enables mobility, and stores minerals.
Therefore, the skeletal system creates the connective tissue and tendons that allow the body to move.
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Which event is associated with tornados?
sea levels rising due to high waves
coastal flooding due to storm surge
paths of damage up to 50 miles long
wind and rain lasting for several days
Helpppp
According to the question, paths of damage up to 50 miles long is correct.
The destructive power of storm surge and large battering waves can result in loss of life, buildings destroyed.
Are tornadoes increasing in frequency?There's been no observed increase in the frequency of major tornadoes over time.
Thus, option "C" is correct.
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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)
What is the name of this tree?
Answer:
pond apple..is the name of that tree.
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 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:
explain why all the offspring in the F1 generation were yellow instead of half being yellow and half green, or some other mix of the colors. Hint: Remember that Mendel coined the terms dominant and recessive.
Answer:
Yellow is a dominant trait.
Explanation:
There are dominant alleles and recessive ones. Say Y is a dominant allele and y is a recessive one. YY makes yellow, Yy makes yellow, and yy makes green. It takes just one dominant allele to make a phenotype (physical traits) express it. Look at the photo to help guide you. Using a punnet square you can find that both parents give a dominant allele and it only takes one.
Hope this helps
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.
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.
Do eukaryotic cells replicate their DNA in the cytoplasm and nuclus?