Answer:
The way calcitonin and parathyroid hormone maintain homeostasis in the body is calcitonin stimulates the kidneys to excrete calcium when calcium levels are too high, while parathyroid hormone stimulates the kidneys to absorb calcium when calcium levels are too low (option A).
Explanation:
Calcitonin and parathyroid hormone have a role in maintaining the balance of calcium and phosphorus concentrations, but their effects are opposite.
The reduction of calcium levels promoted by calcitonin is based on:
Inhibition of intestinal absorption of calcium and bone resorption or decalcification. Increases the excretion of Calcium by the kidneys.On the other hand, parathyroid hormone increases calcium levels by performing the opposite effect of calcitonin:
It stimulates intestinal absorption and bone resorption. It increases renal calcium reabsorption.Both mechanisms contribute to maintain the levels of calcium, when it is high or low in the organism, collaborating with the maintenance of the homeostasis.
The other options are not acceptable because they do not describe the correct function of calcitonin and parathyroid hormone.
Directions: In rabbits, gray hair (G) is dominant to white hair (g), and black eyes (B) are dominant to red eyes (b). These two traits are independent of each other. In other words, a female rabbit with the genotype GgBb may produce eggs with the alleles GB, Gb, gB, or gb. To predict the probability of these sorts of crosses, we will make a dihybrid Punnett Square.
What are the phenotypes (descriptions) of rabbits that have the following genotypes:
Ggbb ____________________ ggBB _________________________
ggbb ____________________ GgBb _________________________
Answer:
let me list them
Explanation:
Ggbb has grey hair and red eyes
ggBB has white hair and black eyes
ggbb has white hair and red eyes
GgBb has gray hair and black eyes
23.Your body cells can break down BLANK
as a source of energy to fuel ATP production.
Select one:
O a. all of the above
O b. amino acids
1
O c. glycerol
O d. fatty acids
Does sustainability cause environmental pollution in plants
Answer:Environmental pollution is any discharge of material or energy into water, land, or air that causes or may cause acute (short-term) or chronic (long-term) detriment to the Earth's ecological balance or that lowers the quality of life. Pollutants may cause primary damage, with direct identifiable impact on the environment, or secondary damage in the form of minor perturbations in the delicate balance of the biological food web that are detectable only over long time periods.
Air pollution is the process which the substances and the energy forms are not present in normal atmospheric composition reach the atmosphere, or are present but in much lower concentrations.Air pollution is the introduction of chemicals, particulate matter, or biological materials that cause harm or discomfort to humans or other living organisms, or cause damage to the natural environment or built environment, into the atmosphere.
More than 3,000 substances that are not part of the atmospheric composition, falling in the atmosphere can be considered air pollutants.
Some substances that are normally present in the atmosphere in a certain concentration can be considerate pollutants because their concentration is much higher than usual concentration.
Also certain substances that are normally present in certain layers of the atmosphere (e.g. ozone in the stratosphere), once arrived in the troposphere is pollutant.
Some gases, such as oxides of nitrogen may have beneficial effect on vegetation, after hydration may affect the leaf fertilizer.
The air pollutants factors can be chemical (chemicals), mechanics (particles in suspension) physical (ionizing radiation) and acoustic (noise).
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What is true about DNA?
a.Provides instructions for proteins
c. Is inherited
b.Negatively chargedmolecule
d. All of the above
sorry if it mixed
Answer:
all of the above
Explanation:
Rocks, streams, chipmunks, and wildflowers make up a(n)
Answer:
Rocks, streams, chipmunks, and wildflowers make up a(n) ecosystem.
The Choose... is the end of the alimentary canal.
Answer:
the anus is the end of alimentary canal
Answer:
esophagus
Explanation:
How are vesicles targeted and moved in a eukaryotic cell?
Answer:First, the transport vesicle must specifically recognize the correct target membrane; for example, a vesicle carrying lysosomal enzymes has to deliver its cargo only to lysosomes. Second, the vesicle and target membranes must fuse, thereby delivering the contents of the vesicle to the target organelle
Explanation:
Canis lupus (wolf), Canis latrans (coyote), and Canis familiaris (domestic dog) are examples of dog-like animals. Canis refers to the genus, while lupus, latrans, and familiaris all refer to different species within the genus. What kind of naming scheme is this?
a. common nomenclature
b. Hebrew nomenclature
c. Arabic nomenclature
d. binomial nomenclature
Answer: d. binominal nomenclature.
Explanation: In binomial nomenclature, the genus is always listed first and capitalized while the species is always listed second and is in lowercase.
The naming system mentioned in the given question is binomial nomenclature.
What is binomial nomenclature?It is the biological system of naming the organisms in which the name comprises two terms. In this, the first term demonstrates the genus, and the second term demonstrates the species of the organism.
Therefore, in the given question, Canis refers to the genus, while lupus, latrans, and familiaris signifies the species.
Thus, the correct answer is option d, that is, binomial nomenclature.
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How many G3P would be produced if there are 36 Carbon Dioxide that enters the Calvin Cycle?
a. 8
b. 10
c. 12
d. 14
Answer:
c
Explanation:
Im pretty sure, so sorry if I'm wrong though.
c. 12
Calvin cycle:
In Calvin cycle number of carbon atoms are constant in CO₂ and used to construct three-carbon sugars. This manner is fueled by, and established on, ATP and NADPH from the mild reactions.The Calvin cycle reactions occurs in three main stages: carbon fixation, reduction, and regeneration of the starting molecule.So, in the question it is asked how many G3P would be produced if there are 36 carbon dioxide that enters the Calvin cycle. Thus the answer is 12
In order for one G3P to go out the cycle (and move in the direction of glucose synthesis), 3 CO₂ molecules need to input the cycle, imparting 3 new atoms of constant carbon.
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HELP! If a person has sickle cell anemia, about 50% of their red blood cells will be sickle shaped. But, this is due to a mutation in the hemoglobin gene which affects the shape of some of the cells. What percentage (%) of the cells in their body will have the abnormal and nonfunctional hemoglobin gene? Why did you choose that number?
Answer:
it may be the answer
With less oxygen, the abnormal hemoglobin S gene can cause rigid, nonliquid protein strands to form within the red blood cell. These rigid strands can change the shape of the cell, causing the sickled red blood cell that gives the disease its name.
If a pollen tube does not grow from the pollen grain during gymnosperm reproduction, which of the following would be the most likely outcome?
A.The pollen would only be able to fertilize eggs inside the same cone.
B.The pollen would not be able to reach the eggs inside the female cones.
C.The pollen would then require a moist environment to swim to the egg.
D.The pollen would instead be dispersed to female cones by wind.
pls help if u know the ANSWER
During a field trip, Luis notices that an old marble statue looks different from a new marble statue. The surface of an old statue is rough. The new statue is smooth and shiny. After doing research, Luis learns that marble undergoes chemical reactions with acid rain. The reactions cause some of the marble to be worn away. What did Luis observe on his field trip?
Erosion
Deposition
Physical weathering
Chemical weathering
Answer:
D
Explanation:
Chemical weathering
An individual that is heterozygous for flower color and for height (PpTt) is test crossed. What is the phenotypic ratio of the offspring
Answer:
9:3:3:1
Explanation:
This type of crossing that involves two characters is referred to as dihybrid crossing. Generally, when there is a dihybrid crossing for heterozygous genes for both parents, the phenotypic ratio is usually 9:3:3:1 as shown in the figure in the attached document below.
Assuming the colour is White (P) and Black (p) and the
Height is Tall (T) and short (t)
The possible phenotypes will be in the ration
9 - White and Tall
3 - White and short
3 - Black and Tall
1 - Black and short
It should be noted that phenotypic ratio (phenotype) describes the outward appearance (what can be see physically) and not the genetic make-up. Thus, where there is a dominant character like P or T, the recessive characters are not considered to have been expressed.
Using at least 25 of the 40 vocab terms below create a Concept Map linking the terms together with meaningful descriptor arrows. You must use at least 25 different terms to get the full credit (10 points) and you must use them correctly! A sample branch has been provided for you below. You may use this branch to get you started. (Many good examples of Concept Maps exist on the Internet!)
Terms:
Deoxyribonucleic Acid
Ribonucleic Acid
Nucleotide
Amino Acid
Protein
DNA Polymerase
Primase
Ligase
Helicase
RNA Polymerase
mRNA
tRNA
rRNA
Ribosome
Codon
Anti-Codon
3’-OH
5’-P
Double Helix
Adenine
Cytosine
Guanine
Thymine
Uracil
Purine
Pyrimidines
Single Helix
Transcription
Translation
Chromatin
Antiparallel
Telomere
Nucleus
Origin of Replication
Intron
Exon
Poly-A Tail
Genetic Code
Gene Expression
Operon
Answer:
Check the diagram to see the answer.
Explanation:
The DNA or deoxyribonucleic acid also referred to as Double-Helix is found in the nucleus of the cell. It holds the genetic code passed from parents to offsprings during reproduction. DNA strands and proteins form a complex in the nucleus. The DNA polymerase as well as ligase and helicase help in the replication and repair of DNA strands.
The RNA is complementary to its DNA counterpart. It is synthesized from the DNA by the RNA polymerase during the process of transcription. A sequence of three DNA or RNA is called a condon, and each condon is an Amino acid or stop bit. The RNA has a single-helix shape
Central Dogma is crucial for the transfer of genetic information as well as for the proper functioning of the organisms. Central Dogma mainly comprises Replication, Transcription and Translation.
Replication is a process in which the DNA makes a copy of itself with the help of enzymes DNA polymerase, ligase, helicase and many more.The replicated DNA undergoes transcription in which DNA gets transcribed into mRNA with the help of RNA polymerases and many other factors. The transcribed mRNA then forms amino acids and the amino acids produce codons and protein which is essential for cell structure and functioning.
See the attachment below for the concept map consisting of the terms given:
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This is for keishaburr13 only please no one else answer this thank you
Answer:
sorry. I can't not answer this question now cause i already submitted it. i did not mean to.
For which object would a geologist use carbon-14 dating to determine age?
O Animal bones
O Fossilized plants
O Sedimentary rocks
O Volcanic rock
Answer:
O Animal bones
Explanation:
In the upper atmosphere, Radioactive Carbon-14 is usually produced. In plants, it is incorporated by photosynthesis into organic molecules, later ingested by hetrotrophs.
It is used for the radiocarbon dating process of fossils and formations. Because of the unstable nature of the isotope used and the consistent rate of decay, radioactive isotope dating is an important way of detection in organic material. Here, this is a the measure of the time taken for half of the radioactive material to break down- this is called the half life for Carbon this is 5,730 years.
In animals, the Carbon-14 ingested is eventually incoporated into their bones. After they die, bones become dessicated, and the Carbon 14 is slowly broken down to become Nitrogen.
Answer:
a animal bones
Explanation:got it rite on edg
2020
Will mark brainliest!!!
Answer:
water
Explanation:
The molecules that are used up in photosynthesis are water and carbon dioxide.
Answer:
D. Water
Explanation:
The molecule that is used up during this process is Water.
During nitrogen fixation, nitrogen gas in the atmosphere is converted into a form that ____ can use. a plants b animals c humans d all of the above
Answer:
A. Plants
Explanation:
Nitrogen fixation is one of the processes involved in the NITROGEN CYCLE. It is the process whereby atmospheric nitrogen (N2) is converted into nitrogenous compounds such as ammonia, nitrates by certain nitrogen-fixing bacteria such as AZOTOBACTER.
The nitrogenous compounds which nitrogen fixation converts N2 into are in a form that PLANTS can use. Plants cannot utilize nitrogen gas, hence, the importance of this conversion into a form that plant can make use of.
Which of the following best describes the overall purpose of photosynthesis?
O To use energy from the sun to produce food (glucose)
O To use energy from the sun to produce oxygen
O to break down food (glucose) in order to produce energy (ATP)
O To take in oxygen in order to be able to produce energy (ATP)
Answer:
the answer is either to use energy from the sun to produce food or to use energy from the sun to produce oxygen
Explanation:
it could be either one of those answers i jus said because in photosynthesis both of those are true. i hope i helped some
Please help me!! Brainlist if answer!
Thank you!
The dads side, and the moms side! {Each part of the family!
Which would result in higher food production at a lower cost? Check all that apply.
cows that are able to fight off diseases
rice that has added provitamin A
corn that is resistant to diseases
wheat that is not killed by weed killer
corn that can grow in cold places
Answer:
A, C, D, and E.
Answer:
The correct answers are:
A. cows that are able to fight off diseases
C. corn that is resistant to diseases
D. wheat that is not killed by weed killer
E. corn that can grow in cold places
Explanation:
I did the assignment on edg :)
PLS HELP I’m not sure which one it is lol
Answer:
Option B)
Explanation:
A moon is a celestial body that revolves around a planet.
The others are wrong because, a planet orbits around the sun, not the sun orbiting the planet.
A meteor does not have a fixed orbit, and asteroids orbit around the star near it, in our case, the asteroid belt orbits the sun.
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Arthritis and other similar diseases can cause a narrowing of the spinal foramen. The images below show a healthy spine and a spine with a narrow foramen.
Which symptom would an individual with a narrow foramen most likely experience?
A.
increased flexibility from the constriction of muscle
B.
poor posture from loss of tendon attachment sites
C.
back pain from the compressed nerves
D.
lower blood pressure from increased blood flow
Answer:
The symptom most likely to be experienced by an individual with a narrow spinal foramen is back pain from the compressed nerves, according to the image.
Explanation:
One of the consequences of inflammatory processes affecting the vertebrae is the loss of the normal configuration of these bone structures.
The narrowing of the vertebral foramen as a result of arthritis, among other causes, can compromise the emergence of peripheral nerve roots, producing pain as a symptom. Long-term root compression can also cause compromised peripheral nerve function, such as paresthesias, numbness and paralysis.
An individual with a narrow spinal foramen will have back pain, due the compressed nerves, as a result of this condition.
The other options are not correct because they are not direct consequences of the narrowing of the spinal foramen.
Answer: Back pain from the compressed nerves.
Explanation:
One test currently done to positively identify individuals infected with SARS-CoV-2 is Group of answer choices to identify the viruses under an electron microscope ultracentrifuge blood samples to concentrate enough viruses so that they can be looked at using a light microscope. real time RT-PCR all of the above
Answer:
The real-time RT-PCR
Explanation:
Due to technical problems, you will find the complete explanation as an attached file.
The table below shows the elements that mainly comprise each of the four layers of Earth:
Elements in Layers
Layer Main Elements
Crust Oxygen, Silicon
Mantle Iron, Magnesium
Outer Core Iron, Nickel
Inner Core Iron
Which of these elements make up the layer that is 0.2 to 1.1 percent of Earth's total diameter? (7 points)
a
Oxygen and Silicon
b
Iron and Magnesium
c
Iron and Nickel
d
Magnesium and Silicon
Answer:
c
Explanation:
silicon and Magnesium can be find anywhere in the soil
What happens to the particles of a liquid when energy is removed from them?
Answer:
When liquids boil the particles must have sufficient energy to break away from the liquid and to diffuse through the surrounding air particles. As these particles cool down and lose energy they will condense and turn back to liquid.
When energy is removed from the particles of liquid. They become condensed and convert into liquid from vapor.
What is liquid?The liquid is one of the states of matter. It can be identified as it takes the shape of the container in which it is poured. The particles of a liquid are farther from each other than the particles of gas.
The particles of liquid contain energy when they are heated or boiled. The particle gets energy and turns into vapor particles. When the heat is removed and the particle cools down, it again becomes liquid.
More kinetic energy causes particles to travel more quickly and widely apart. Less energetic particles move more slowly and maintain their proximity.
Thus, when liquid molecule particles lose their energy. They go from vapor to liquid as a result of condensation.
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recent mass extinction
What two factors cause natural gas to form?
In marsupials, X inactivation occurs exclusively to paternally derived chromosomes. Which genes will
ALWAYS be expressed in this situation?
A. maternal X-linked genes
B. paternal X-linked genes
C. maternal Y-linked genes
D. paternal Y-linked genes
Answer:A maternal x linked genes
Explanation:
In marsupials, X inactivation occurs exclusively to the paternally derived chromosome. The genes which are always expressed in this situation is that of maternal X linked genes (option A).
The gene that will be expressed in the situation is maternal X-linked genes. The correct option is A.
What is maternal gene?Maternal genes are those whose RNA or protein products are produced or deposited in the oocyte or are present in the fertilized egg or embryo before zygotic gene expression begins.
The phenotype of the offspring is determined by the maternal genotype. Maternal effects are frequently observed because the mother provides a specific mRNA or protein to the oocyte, and thus the maternal genome determines whether the molecule is functional.
X inactivation occurs only on the paternally derived chromosome in marsupials. Maternal X linked genes are the only ones that are always expressed in this situation.
Thus, the correct option is A.
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T/F Oxygen is not present during anaerobic respiration
A. True
B. False
Answer: True
Explanation: Glycolysis, which is the first step in all types of cellular respiration is anaerobic and does not require oxygen. ... However, if oxygen is not present, some organisms can undergo fermentation to continually produce ATP.
Answer:
False
Explanation:
Cellular Respiration can occur both aerobically (using Oxygen) and anatomically (without Oxygen)