Answer:
cellular respiration produces carbon dioxide which is the reactant required for photosynthesis
What category of gymnosperms is pollinated by the snout beetle?
A. cycads
B. gnetophytes
C. conifers
D. ginkgo
Answer:
A Cycads
Explanation:
Cycads are unique among gymnosperms in that they are pollinated by insects like beetles and, in rare cases, thrips.
In a monohybrid cross, what is the predicted ratio of offspring with the dominant phenotype compared to those with the recessive phenotype?.
The predicted ratio of offspring for monohybrid and Heterozygotes are
Mp=3:1
Hz=1:4
What is a monohybrid cross?
Generally, A monohybrid cross is simply defined as an experiment involving organisms from the P generation that varies in a single characteristic.
What is the predicted ratio of offspring with the dominant phenotype compared to those with the recessive phenotype?
The monohybrid predicted ratio of offspring is
Mp=3:1
For Heterozygote we see a ratio of four out of 16, this gives a ratio of
Hz=1:4
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The image shows a soil horizon with its layers labeled. Which layer is nutrient rich and contains a mixture of humus, clay, and important minerals?
Answer:
The Topsoil layer.
Explanation:
The topsoil layer is a mixture of sand, silt, clay, and broken down organic matter, called humus. Humus is a rich, highly decomposed organic matter mostly made from dead plants, crunched-up leaves, dead insects, and twigs. Topsoil is the home of living things and the materials that they make or they change.
Can Please please help
Answer:
You're right, D is Correct
Explanation:
I had this question a couple days ago
Answer:
See below ~
Explanation:
Evaluating the statements
Pea plants can only have tall or short stems. [correct !]A dark brown dog describes part of its phenotype. (visible features) [correct !]A bb individual has two recessive alleles. (recessive alleles are represented by lowercase letters) [correct !]⇒ All of the statements are correctA student made a table to show information about the physical structures and organs of birds. what statement best describes how to correct an error in the table? a table about birds with the headings physical structure and function. the feathers are listed as a physical structure and function to protect the bird from the environment. the ovaries are listed as a physical structure and function to support the body. the feathers support the body. the feathers help the bird move. the ovaries produce the eggs. the ovaries produce the sperm.
The ovaries are a physical structure and the function of the ovary is to produce eggs in the birds.
Physical structures of birdsThe physical structures are those structure that we can see in an organism but externally and internally. The table is not shown here but we can still make some corrections.
The ovaries are a physical structure and the function of the ovary is to produce eggs in the birds.
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Answer: c
Explanation: pls brainiest
Where would you not find a cholinergic nicotinic receptor.
Answer:
You would not find a cholinergic nicotinic receptor on parasympathetic target organs
Explanation:
Which choice correctly identifies a positive correlation regarding the increase in black peppered moth populations in England during the late 1800s?
O the correlation between air pollution and white moth predation
O the correlation between black moth populations and predation of black moths
O the correlation between air pollution and black moth predation
O the correlation between air pollution and white moth populations
The choice that correctly identifies a positive correlation to the increase in black peppered moth population is : ( C ) The correlation between air pollution and black moth predation
Increase in Black moth populationDuring the indutrial revolution which was in the late 1800s the number of black moth increased and this was regarded as a direct consequence of air pollution during the industrial revolution. The evolution off the peppered moth into dark ( black ) moth was regarded as a evolutionary instance.
Hence we can conclude that a positive correlation to the increase in black peppered moth population is The correlation between air pollution and black moth predation.
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hey I need help with this biology question
Answer:
run away and slime at like
Explanation:
i did it and got it riight
The statement, it is a matter of chance which homolog goes to which daughter cell best describes _____.
Answer:
independent assortment;
Explanation:
During metaphase I, maternal and paternal homologs line up randomly at the metaphase plate.
hope this helps!!
The bones from an animal found at an archaeological dig have a C614 activity of 0.10 Bq per gram of carbon. The half-life of C614 is 5730 yr. What is the age of the bones?
C14 is an isotope used in radiocarbon dating techniques to date organic matter remains. The age of these bones is approximately 6890 years.
What is Carbon 14?
Carbon 14, also known as radiocarbon, is a radioactive carbon isotope.
Isotopes are the atoms of the same element -carbon- that vary in neutrons and, hence, in their massic number. They are alternative forms of the same element.
The radioactive C14 nucleus contains 6 protons and 8 neutrons and has a half-life of 5730 years.
The term half-life is a reference. It means that an organism that has been dead for 5730 years has half the C14 amount or concentration than the same organism had when it was alive.
Knowing the half-life of an element is useful to determine the age of the dead matter.
C14 is used in radiocarbon dating techniques or methods to estimate the age of fossils. This is a reliable technique used for dating organic samples that are less than 50,000 years old.
Available data:
The half-life of C14 is 5730 yearsBones activity of 0.10 Bq per gram of carbonTo answer this question we can make use of the following equation
Ln (C14T₁/C14 T₀) = - λ T₁
Where,
C14 T₀ ⇒ Amount of carbon in a living body. We know, by bibliography, that living organism activity is 0.23 Bq per gram of carbon. So, C14 T₀ = 0.23 Bq/gC14T₁ ⇒ Amount of carbon in the dead body. C14T₁ = 0.1 Bq/gλ ⇒ radioactive decay constant = (Ln2)/T₀,₅T₀,₅ ⇒ The half-life of carbon 14 = 5730 yearsT₀ = Time when the organism was aliveT₁ = Age of bonesLet us first calculate the radioactive decay constant.
λ = (Ln2)/T₀,₅
λ = 0.693/5730
λ = 0.0001209
Now, let us calculate the first term in the equation
Ln (C14T₁/C14 T₀) = Ln (0.1/0.23) = Ln 0.4347 = - 0.833
Finally, let us replace the terms, clear the equation, and calculate the value of T₁.
Ln (C14T₁/C14 T₀) = - λ T₁
- 0.833 = - 0.0001209 x T₁
T₁ = - 0.833 / - 0.0001209
T₁ = 6889.99 ≅ 6890 years
The bones are approximately 6890 years.
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science book which of the following evidence that Earth is a sphere ? choose all that apply
A. Higher Elevations allow you to see around the curve of Earth's horizon
B. You see only the top part of a ship as it sails over the horizon.
C. The sun and stars travel across the sky from east to west.
Mendel’s principle of segregation reflects what event in meiosis?.
Answer:
during meiosis alleles segregate
Explanation:
ther can be more than one type of allele for a gene
Station #5 Punnett Squares
1. What is the probability their offspring
will have... (Draw the punnett squares)
a. Brown fur?
b. Long hair?
c. Short tail?
(only want 1st question please)
This result gives you the probability that an offspring will have the dominant trait.
For example (2/4)*100 = 50, therefore there is a 50% probability of an offspring having brown hair. 4.
How do you find the probability of offspring using a Punnett square?Count the total number of boxes in your Punnett Square.
This gives you the total number of expected offspring. Divide the by. Multiply the number from step 4 by 100 to get your percent.
Thus, This result gives you the probability that an offspring will have the dominant trait.
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What grape is revered as the noblest grape variety to grow in Germany; yet it presents problems since it requires long cool maturation to reach full flavor potential, and it is susceptible to fall frosts. This grape is the most widely planted grape in Germany:
Riesling grape variety is revered to as the noblest grape variety grow in Germany.
What is Riseling grape?Riesling is a white form of grape variety that is has aroma and very beautiful displaying flower. It originated in the Rhine region and it is common found in germany. It is highly perfumed, aromas and very acidic. It is nomally use to produce dry, semi-sweet, sweet, and sparkling white wines. Riesling wines are usually varietally pure.
Therefore, Riesling grape variety is revered to as the noblest grape variety grow in Germany.
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Why do methane is a gas at room temperature and water is a liquid, even though both molecules are similar in size and mass?
Please help
Answer:
Water can hydrogen bond.
Explanation:
Liquids become gases once they are heated to a certain temperature. Heat is a form of energy. This change occurs when the intermolecular forces between the liquid molecules are energized enough to break. This breakage is necessary because gaseous molecules exist individually and do not interact with one another. That being said, it takes more heat to boil water because its intermolecular forces are stronger than methanes.
Intermolecular forces (IMF) are a result of partial charges on the molecular atoms that cause temporary bonds to form between molecules.
Methane is a nonpolar molecule, meaning each atom can only have slight partial charges. The strongest IMF methane participates in are London Dispersion Forces.
Water, however, is a polar molecule, with the hydrogens having strong partial positive charges and the oxygens having strong partial negative charges. This allows water to participate in a very strong IMF called hydrogen bonding. Again, because these partial charges are so strong, the water molecules can form stronger IMFs.
*When molecules have stronger IMFs, they require more energy(heat) to overcome them.*
In some parts of the Edwards Plateau ecoregion in Texas, overgrazing from deer and livestock is killing the grasses that live there. How will the the soil in these areas likely be impacted by overgrazing?
A.
Precipitation will soak into the soil more easily.
B.
Deposition will create more soil.
C.
Weathering will make the soil less useful.
D.
Erosion will remove more of the soil
Answer:c
Explanation:
it will kill the animals that eat the grass and them
Why has the recent climate been beneficial for human human civilization.
Answer:
it has been beneficial because the climate with the environment helps humans to cope with the level of civilization
Which feature contains genetic material and is present in a eukaryotic cell but not in a prokaryotic cell?
Answer:
bacteria
Explanation:
b/c bacteria is not eukaryotic
I WILL GIVE BRANLIEST. PLSSS
A single birch tree may transpire as much as 260 liters of water in a day. How much
water would a grove of 1,000 birch trees return to the atmosphere in a year?
Answer:
94 million liters.
Explanation:
260*1000=260,000
260,000*365=94,900,000
When taken up by a cell, which of the following molecules binds to a repressor so that the repressor no longer binds to the operator?
A) inducer
B) promoter
C) repressor
D) corepressor
The molecules that bind to a repressor so that the repressor no longer binds to the repressor operator
The repressor no longer binds to the operator?The lac repressor protein binds to the operator and blocks the binding of RNA polymerase to the promoter and transcription of the operon. The promoter is the binding site for RNA polymerase, the enzyme that carries out transcription. The operator is a negative regulatory site to which the lac repressor protein binds.
With this information, we can conclude that the molecules that bind to a repressor so that the repressor no longer binds to the repressor operator.
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Which statements best compare
the function of an ATP molecule to a DNA molecule?
ATP carries and transmits the
genetic information of
organisms.
DNA a serves as a biological catalyst that speeds up the rate of chemical reactions.
ATP provides energy for chemical reactions in the cell.
DNA carries and transmits the genetic information of organisms.
J
ATP serves as
a biological catalyst that speeds up the rate of chemical reactions.
DNA acts as a structural sugar in the cell walls of plants.
J
ATP acts as a structural sugar in the cell walls of plants.
DNA provides energy for chemical reactions in the cell.
The main function of ATP molecule is to serve as an energy supply in the biochemical reactions that occur in an organism, while the function of DNA molecule is to contain the hereditary genetic information of an organism.
DNA is the base macromolecule of heredity, it is a nucleic acid that contains information on the hereditary characteristics of each living being.
ATP is a nucleotide-type organic molecule that is the universal chemical energy transporter in all cells.
DNA is responsible for storing all the genetic information of the individual, that is, the instructions for the synthesis of all the proteins that make up the body.
ATP is a fundamental molecule for various vital processes, since it is the main source of energy for the synthesis of complex macromolecules, such as DNA, RNA or proteins.
Therefore, we can conclude that ATP is a nucleotide that is essential for cells to obtain energy, while DNA presents the genetic information that living beings use to function.
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The statement which best compares is ATP and DNA is that ATP provides energy while DNA carries genetic information.
What is DNA?DNA is a hereditary material which is present in human beings as well as all other living organisms. Every cell which is present in an organism's body has DNA which is the same. Most of the DNA is situated in the cell's nucleus and small amount of it can be found in the cell's mitochondria as well.
Information which is stored in DNA is stored as codes made up of four chemical bases namely, adenine, thymine , cytosine and guanine.Human DNA consists of 3 billion bases .The order of the bases determines information which is required for building and maintaining an organism.
DNA bases are capable of pairing up with each other. Adenine pairs with thymine and guanine pairs up with cytosine .Each base is also attached to a sugar molecule and a phosphate group. A base, phosphate sugar are together called as nucleotides.
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2
What is immunity?
(1 Point)
A. The body's ability to produce cells that inactivate foreign cells or substances.
B. The body's ability to regulate homeostasis through feedback loops.
C. The body's ability to produce the "fight or flight" response.
D. The body's ability to use the endocrine system to fight disease.
Immunity may be defined as the body's ability to produce cells that inactivate foreign cells or substances.
What is the significance of best immunity?The significance of the best immunity shields us by first constructing a barrier that prevents those invaders, or antigens, from entering the body.
The body's ability to produce the "fight or flight" response is stimulated by the sympathetic nervous system. The body's ability to regulate homeostasis through feedback loops by maintaining the process of homeostasis.
Therefore, immunity may be defined as the body's ability to produce cells that inactivate foreign cells or substances.
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A population of finches that have 3 different beaks live on an island. Each beak type is adapted to one of 3 specific food sources. Two of the three food sources are eliminated during a hurricane. What will happen to the finch population
When the skin comes in contact with an irritant, receptors in the skin send signals to the spinal cord. The signal is then sent to the brain for processing, and the individual begins to scratch the affected area. Which two systems are most likely interacting when a person experiences itching caused by a skin irritant?
When the skin comes in communication with an hassle, receptors in the skin send signs to the spinal cord. The signal is then sent to the brain for proceed, and the individual begins to rub the affected area.
What kinds of touch receptors are found in the skin?The main types of touch receptor are called thermoreceptors, chemical receptors, and mechanical receptors.
Thermoreceptors are like the thermometer notification for your skin receptors, designed to detect changes in the temperature of the outer skin layers.
Thus, When the skin comes in contact with an irritant, receptors in the skin send signs to the spinal cord.
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Explain how the processes of sedimentary rock formation change the geosphere.
Answer:
I think because of weathering, erosion, etc.
Explanation:
Sedimentary rocks are formed from weathering, the transportation of existing rocks and deposition, cementation, etc.
What was the reason for the addition of the Bill of Rights to the U.S. Constitution?
Explanation:
To ensure ratification of the document, the Federalists offered concessions, and the First Congress proposed a Bill of Rights as protection for those fearful of a strong national government. The Bill of Rights came into effect in December 1791, after ratification by three-fourths of the state legislatures.
How are elephants and fishes alike?
Answer:
no I don't think so because the elephant has tusks and a long nose and fishes have gills and the elephant is a mammal
find the area of each triangle
Answer:
First you need the Formula of ( LXW X 1/2 = A)
Explanation:
For the first triangle we have a length of 8 and a width of 8. So we multiply
8 X 8=6464 X 1/2 = 32Hence Triangle 1 Equals 32Yd^2TRIANGLE 2
6 X 5=3030 X 1/2 = 15Hence Area= 15ft ^2TRIANGLE 3
10 X 8 =8080 X 1/2=40Hence Area is 40in^2How many lunar cycles happen each year?
Which organisms produce about half of the Oxygen in Earth?
At least half of Earth's oxygen comes from the ocean.
The majority of this production is from oceanic plankton — drifting plants, algae, and some bacteria that can photosynthesize. One particular species, Prochlorococcus, is the smallest photosynthetic organism on Earth.