Answer:
They are parasitic.
They are not a roundworm.
Leeches lack setae.
Yes they do have medical uses.
Yes leeches are segmented.
Sorry if I am wrong
They are parasitic.
They are a type of roundworm.
They have medical uses.
are all correct
What does a model of the rock cycle show?
a. the amount of earths carbon cannot be determined
b. the amount of earths carbon increases
c. the amount of earths carbon decreases
d. the amount of earths carbon is constant
Answer:
I believe it’s “B”
Explanation:
Answer:
d. the amount of earths carbon is constant
Explanation:
Rock cycle is the name given to the natural process of transformation of the roots, capable of changing their moneralic composition. This cycle is proof that the terrestrial lithosphere has a dynamic character, which is the result of the actions of several endogenous and exogenous factors on the terrestrial surface. This cycle also allows us to understand how the amount of carbon in the earth is constant, allowing the transformation of the rocks in an evident way. It is through this process that we perceive the different types of rock that exist on the planet, if this process did not happen, the lithosphere would be composed only of magmatic rock.
Help!!! 25 points!!!!
The hurricane center is MOST likely to be near location ___________ on Monday afternoon.
A) I
B) II
C) III
D) IV
Which state of matter is made up of particles with the greatest amount of
kinetic energy?
OA) gas
OB) solid
OC) liquid
OD) plasma
Answer:
Gas
Explanation:
Gas has the most kinetic energy while a solid has the least
What could happen if the DNA replication process encounters an error while coding
Answer:
Mutation
Explanation:
If an error occurs during the replication, it is called a mutation. Mutations can benefit, have no effect on, or damage the organism. Mutations are permanent once they occur.
Answer:
It can cause a mutation in the replication process/final result. In addition, errors can only be fixed during DNA replication and not transcription or translation, but sometimes they aren't caught.
The more mass an object has, the ____________ inertia it has
Answer: greater or more inertia it has.
Explanation: more massive objects have greater inertia and are harder to stop.
Answer:
The more mass an object has, the more inertia it has
What is the density of a liquid that has a volume of 20 mL and a mass of 3 g?
Explanation:
Given:
Volume of a liquid(V) = 20ml and
Mass of a liquid(M) = 3g
To find, the density of a liquid( [tex]\rho[/tex] ) = ?
We know that,
Density([tex]\rho[/tex] ) = [tex]\dfrac{Mass(M)}{Volume(V)}[/tex]
Density( [tex]\rho[/tex] )= [tex]\dfrac{3}{20}[/tex]
Density( [tex]\rho[/tex] )= [tex]0.15\dfrac{g}{ml}[/tex]
Thus, the density of liquid is [tex]0.15\dfrac{g}{ml}.[/tex]
A population of beetles are kept in a controlled ecosystem. No beetles are
allowed to enter or leave. The graph below shows the population of beetles.
Beetle Population
Population size
Time
Which best describes the ecosystem at Point A?
O
A. The death rate is higher than the birthrate.
O
B. It has reached carrying capacity.
O
C. There is no competition for resources.
O
D. The population is decreasing,
Answer:
According to what is observed in point A of the graph, referring to the population of beetles, there is no competition for resources.
Explanation:
The graph shows that a controlled population of beetles, where other individuals do not enter or leave, experiences progressive growth over time. This is because the population has sufficient resources to guarantee their development, the birth rate exceeds that of mortality and there is no competition for these resources.
The adequate amount of resources allows that, at point A, the carrying capacity has not been reached, a consequence of no competition among members of the same species, which ensures that the net population growth rate is maintained or even increase.
Learn more:
Population growth https://brainly.com/question/2556439
Answer:all these answers wrong this is right
Explanation:
Although fertilizers have been very important in increasing the food supply, there have
also been negative effects from the overuse of fertilizers. How can the overuse of fertilizers
kill crop plants?
A. It can cause salts to build up in
the soil.
B. It can cause roots to absorb too much nitrogen.
C. It can cause transpiration rates to increase.
D. It can cause soil to erode at a
faster rate.
Final answer:
Overuse of fertilizers leads to the buildup of salts in the soil, causing dehydration of plant cells and potential death of root tips, which can ultimately kill crop plants by preventing water absorption.
Explanation:
The overuse of fertilizers can kill crop plants primarily because it causes salts to build up in the soil, leading to a condition known as salinization. This buildup of salts occurs because fertilizers are composed of various plant nutrients that, much like table salt, are also salts. These salts begin to diffuse and move away from where they are applied, diluting and spreading the fertilizer. If a high concentration of fertilizer is applied, then more water is drawn from plant roots and soil, leading to dehydration and collapse of plant cells. In cases of limited soil moisture, the damage to the plant can be severe, with water being drawn out of the roots to the point where they cannot recover. Excessively high levels of salt in the soil can prevent plant roots from absorbing water efficiently, potentially causing the root tips to die.
What is the function of the structure identified by the red arrow?
O Food capture
O Mobility
DNA transfer
O Protection
Answer:
Protection
Explanation:
It looks like that the picture depicts bacterial cells forming a colony. The structure shown by the red arrow is a cell membrane. The principle function of the cell membrane is to protect the cell internal environment with respect to changes in the external environment. This is also called homeostasis.
For food capturing and mobility, the structure is not matching because there should be filaments or pseudopodia. Likewise, for DNA transfer, pili are required and the shown structure doesn't match that too.
Answer: Answer is D. Protection
Explanation: The arrow is pointing at the cell membrane, the cell membrane controls what is going in and out of the cell, it can also perform as a defensive barrier against things that are not good for the bacteria, therefore it is protection. Have a Good Day :)
What are the macromolecules DNA and RNA referred to as?
Answer:
Nucleic Acids
Explanation:
Between carbohydrates, lipids, proteins, and nucleic acids, DNA and RNA molecules most accurately fall under the macromolecular category of nucleic acids.
DNA and RNA are referred to as nucleic acids. DNA holds genetic information and controls cellular activities, while RNA is involved in protein synthesis. Both play critical roles in the continuity of life.
Nucleic acids are critical for the continuity of life because they carry a cell's genetic blueprint and instructions for cellular functioning.
DNA stands for deoxyribonucleic acid and is the genetic material found in all living organisms.RNA stands for ribonucleic acid and is primarily involved in protein synthesis.DNA has a double-helix structure, which is essential in storing and transmitting genetic information.Nucleic acids are composed of monomers called nucleotides, which consist of a phosphate group, a sugar, and a nitrogenous base.DNA controls cellular activities by regulating genes, while RNA serves as an intermediary in the synthesis of proteins based on DNA's instructions.Why do predictions by the European weather model sometimes differ from predictions made by the American weather model?(1 point)
The two models assimilate data differently using different equations.
The two models use different types of data measurements.
The two models are designed to model different types of weather.
The two models focus on different parts of the world.
Answer:
The two models assimilate data differently using different equations.
Explanation:
The weather models are based on mathematical equations in which the input variables are weather observations such as temperature, pressure, wind, moisture, etc that are obtained from the weather satellites and ground sensors. Using a process known as data assimilation, these weather observations are used to initialize numerical forecast models by combining the observations with prior forecasts.
The two global weather models, the European (European Center for Medium-Range Weather Forecast) and the American (National Weather Service’s Global Forecast System) models provide predictions all over the world. The mesoscale models or fine scale models can predict really small weather observations on more specific regions.
The atmosphere is divided into a three-dimensional grid in each model. At each grid point, the assimilated data is given and the mathematical equations are applied which are then stepped forward in time. The different weather models assimilate data differently using different equations and the outputs obtained over many time steps give the future weather.
What can’t pet DNA tests tell us about our pets?
Pet DNA tests can provide valuable information about a pet's genetic makeup and potential health risks, but they have limitations. These tests cannot provide information about a pet's age, overall health, personality, behavior, training, or ancestry beyond a certain number of generations.
Explanation:Pet DNA tests can provide valuable information about a pet's genetic makeup, including their breed composition and potential health risks. However, there are limitations to what these tests can tell us about our pets.
Firstly, pet DNA tests cannot provide information about the age or overall health of a pet. These tests are focused on genetic information and do not provide insight into other aspects of a pet's well-being. Additionally, these tests cannot determine a pet's personality, behavior, or training. These traits are influenced by a combination of genetics and environment and cannot be determined solely through DNA analysis. Pet DNA tests also cannot provide information about a pet's ancestry beyond a certain number of generations. While they can identify genetic markers and breed percentages, they cannot trace a pet's lineage back indefinitely.
Therefore, while pet DNA tests can provide valuable information about a pet's genetic makeup, it is important to remember that there are limitations to what these tests can tell us about our pets.
Survivorship Curves for Three Different Types of Organisms
1000
Number of survivors
(log scale)
50
100
Percentage of maximum life span
Which survivorship strategy is used by the type III species?
Answer:
As the picture for the curves is not given, lets look at the type III species generally.
Explanation:
A survivorship curve can be described as a graph which represents the number of individuals which are able to survive to a particular age for each given species.
The Type III species can be described as those species of the survivorship curve which have a high death rate immediately after death. This is because these organism tend to produce a wide number of eggs and as protection is not taken for them by the parents, hence most of the fertilized eggs or zygotes tend to die. These organisms hence produce a large number of eggs so that some of them will have the capability to survive.
A _____ is an ancestor to chloroplast.
A) Aerobic Bacteria
B) Anaerobic Bacteria
C) Mitochondria
D) Animal Cell
Answer:
Aerobic Bacteria
Explanation:
I hope you get this correct
Carbon atoms can form...
A) one double covalent bond
B) two triple covalent bonds
C) four single covalent bonds
D) three double covalent bonds
A carbohydrate polymer composed of beta-glucose subunits is called
Answer:
Glycogen. The principal storage polysaccharide in animal cells; formed from glucose and stored primarily in the liver and , to a lesser extent, in muscle cells.
Explanation:
Question 7
Explain why it is important for daughter cells to have a full set of chromosomes.
Answer:
It is important for the daughter cells to have a full set of chromosomes so that the chromosome number can be maintained in each cell type of the body of an organism.
If the chromosome number is not same in each cell, then genetic stability will not be achieved by the cells of the body. The chromosome number will not be able to be maintained in the organism's body.
What are the functions of the structures labeled X?
The structures labeled X likely represent organelles, specifically the Golgi apparatus which modifies and packages proteins, and the nucleus which controls cellular activities and contains genetic material.
Explanation:The structures labeled X are likely referring to specific organelles found within a cell, such as the Golgi apparatus and the nucleus. The Golgi apparatus is responsible for modifying, sorting, and packaging proteins and lipids for secretion or delivery to other parts of the cell. The nucleus serves as the control center of the cell, housing most of the cell's genetic material and coordinating activities like growth, metabolism, protein synthesis, and cell division (mitosis).
Organelles are specialized structures within cells, each performing distinct functions necessary for cell survival and function. The Golgi apparatus is involved in modifying and sorting proteins and lipids, while the nucleus houses the cell's DNA and coordinates crucial activities.
The structures labeled X in the provided context are likely to be organelles within a cell. Organelles are specialized structures that perform distinct functions necessary for the cell to live and function properly. For example, the Golgi apparatus is an organelle involved in modifying, sorting, and packaging proteins and lipids for secretion or for use within the cell. The nucleus is another organelle that acts as the control center of the cell, housing the cell's DNA and being responsible for coordinating activities such as growth, metabolism, protein synthesis, and cell division (mitosis).
Organelles work together to ensure that cells can perform all necessary functions to survive and contribute to the larger organism. They are often compared to tiny organs within a cell, hence the name 'organelle.' Each organelle has a unique structure that enables it to execute its specific function effectively, demonstrating the relationship between structure and function at a cellular level.
Here are some important keywords and concepts from the provided text:
Organelles: Specialized structures within cells.
Golgi Apparatus: Involved in modifying, sorting, and packaging proteins and lipids.
Nucleus: Houses the cell's DNA and coordinates crucial activities.
Proteins and Lipids: Substances modified and sorted by the Golgi apparatus.
Cell Survival: Organelles play a crucial role in ensuring cell survival.
Control Center: Nucleus acts as the control center of the cell.
DNA: Genetic material housed in the nucleus.
Coordination of Activities: Nucleus is responsible for coordinating various cellular activities.
Mitosis: Process controlled by the nucleus, involving cell division.
Structure and Function: Relationship between the structure of organelles and their specific functions.
Cellular Level: Understanding the relationship between structure and function at the cellular level.
Tiny Organs: Organelles are often compared to tiny organs within a cell.
Cell Division: Process controlled by the nucleus.
Modification and Sorting: Functions performed by the Golgi apparatus.
Packaging: Golgi apparatus packages substances for secretion or for use within the cell.
These keywords highlight the key concepts related to organelles, their functions, and the fundamental role they play in the survival and functioning of cells.
How does replication work?
ocean acidification and its relationship to pH a
hi1
Answer:
Ocean acidification: Ocean acidification refers to the decrease in the pH of ocean water.
The pH of ocean water decreases due to the increased in the carbondioxode emissions in the atmosphere because of the burning of fuels. This carbondioxode is dissolved in the ocean water and forms carbonic acid. This carbonic acid is responsible for increasing the pH of ocean water. In one and half century, there is 30% increase occurs in the acidity of ocean water.
how much thermal energy needs to be added to 0.455 kg of benzene to heat it from 30*c to 50*c
15834 joules is the thermal energy required.
Explanation:
Specific heat capacity of benzene= 1.74 J/gK or 1740 J/Kg K
mass of benzene = 0.455 kg
temperature change= 50-30
= 20 degrees
From the formula:
Specific heat capacity= thermal energy/ (mass)*(temperature change)
thermal energy= 0.455* 1740*20 ( speicfic heat of benzene is converted
to joules per gram)
= 15834 joules
would you expect something with a pH of 4 to be more or less acidic than human blood?
Answer:
The acidity or alkalinity (base) of the body can be measured through blood, urine or saliva. but
When the pH is 7, it is considered neutral. When a substance has a pH greater than 7 esalkaline, and is acidic if it is lower than that value. The ideal pH for our body is between 6 and 6.8. Any value greater than 6.8 is considered alkaline.
Answer: More Acidic
Explanation:
The pH scale ranges from 0 (strongly acidic) to 14 (strongly basic or alkaline).
Human blood usually has a pH of 7.40 so it is leaning more on the basic side of the pH scale (since the middle of the scale is at 7.0)
A pH of 4 is closer to 0 so that means it is pretty acidic
Biology DNA:
-
The bases match up as follows;
Answer:
Adenine, A match-pairs with Thymine, T while Cytosine, C pairs with Guanine, G.
Explanation:
Normally, complementary DNA strand obeys Chargaff's rule of base-pairing in 1: 1 ratio, in a scenario with a template strand where a purine pairs with a pyrimidine via hydrogen bonds to create a novel 3-dimensional (3D) DNA structure.
Pyrimidines are normally Cytosine, C and Thymine, T; while Purines are Guanine, G and Adenine, A. So through complementarity, a purine, G must bind a pyrimidine, C and same case for A to T.
An ecological pyramid is sometimes used to show both the flow of matter and energy in an ecosystem. The pyramid narrows as matter and energy flow from the bottom to the top. Draw a conclusion about what this pyramid tells you about the energy in this ecosystem.
Since the pyramid narrows from bottom to top, we can conclude that the amount of energy keeps on decreasing as we move to a higher trophic level.
Explanation:
Ecological pyramid are graphical representation of data that shows the number of organisms,amount of energy and amount of biomass at each trophic level in a food chain.
Food chain is a sequence of organism who are related to each other by the process of Eating and being Eaten up.
The base of the ecological pyramid represents the producer or the first trophic level while the apex of the pyramid represents the cosumers at higher levels of food chain; other consumer trophic levels are in middle.
There are three types of Ecological pyramids:
Pyramid of number: This shows the number of organisms of a population present at each trophic level.Pyramid of energy: This shows the amount of energy available at each trophic level and clearly depicts the energy loss at successive trophic level.Pyramid of biomass: This pyramid represents the total dry weight of living beings present at each trophic level.The pyramid of Energy is always an upright pyramid because amount of energy transferred from one trophic to next keeps on decreasing as the energy is lost in form of heat and is also used up by the organism at a given trophic level and only the remaining is part to the next.
Which type of star system is pictured?
Answer:
open cluster
Explanation:
Answer:
Which type of star system is pictured?
Open Cluster
Explanation:
Edgen 2022
2.The new codon that you answered for #1 codes for which amino acid? Only give the three letter prefix for your answer.
3.This type of mutation is called a __________ mutation when there is a simple change in one base of the gene sequence.
Ex:
Original:
The fat cat ate the wee rat.
Mutation:
The fat hat ate the wee rat.
4.Did this mutation have an effect on the outcome compared to the normal sequence?
Explanation:
Question 2 is incomplete.
3. A mutation that only affects a single nucleotide of nucleic acid is known as Point Mutation.
In Point mutations there is substitution of one base for another.
Example: TAT TGG CTA
TAC TGG CTA
The TAT changes to TAC which shows point mutation.
4. Yes. The point mutation have an effect on the outcome compared to the normal sequence.
When there is a change in one base of the gene it results into causing disease such as cancer, sickle cell anemia.
A silent mutation is a mutation where the new codon codes for the same amino acid as the original codon. A point mutation is a type of mutation that involves a simple change in one base of the gene sequence. The mutation in the given sequence is a point mutation where the base 'c' in the codon 'cat' was changed to 'h' in the codon 'hat'. The effect of this mutation on the outcome depends on the context and purpose of the sequence.
Explanation:The new codon that codes for the same amino acid as the original codon is called a silent mutation. For example, if the original codon is AAA for lysine, and it is mutated to AGA for arginine, both amino acids are basic amino acids and the protein may not be affected. It is important to note that a change in the third base of the codon, called the wobble base, may still permit the correct incorporation of the same amino acid into the protein.
A point mutation is a type of mutation that involves a simple change in one base of the gene sequence. This can include silent mutations, missense mutations (where the codon codes for a different amino acid), or nonsense mutations (where the codon becomes a stop codon).
Based on the given information, the mutation in the sequence "The fat hat ate the wee rat" compared to the normal sequence "The fat cat ate the wee rat" is a point mutation where the base "c" in the codon "cat" was changed to "h" in the codon "hat".
Explain why the soil doesn’t qualify as an organism despite containing billions of living cells
Answer:
Soil doesnt qualify as an organism despite containing billions of living cells simply due to what soil is. Soil is organic remains like decomposed organisms, minerals, and rock. It supports life but doesn't it doesnt have life itself. It doesn't breathe,grow, or eat.
Explanation:
The reason why soil does not qualify is because of organic.
Why the soil doesn’t qualify as an organism?Soil doesn't qualify since an organism contains billions of living cells simply because of what soil is. Soil is organic remains such as decomposed organisms, minerals, and rock. It supports life but doesn't it have life itself. It can't breathe,grow, or eat.
Find out more information about the cells here: brainly.com/question/5763151?referrer=searchResults
Which is a type of irradiation used to prevent food-borne illnesses?
Answer:Gamma
Explanation: Gamma can be used to destroy different bacteria that causes food poisoning, it can also be used to preserve food and also serve as a prevention against spread of pests. irradiation can serve many purposes. Gamma radiation is used for treatment which include killing of bacteria and deinfestation of agricultural product. It is used to kill microorganisms on a variety of product, and it is ideal for many products. Irradiation is the process of exposing food to a very high source of energy. Gamma irradiation make use of high energy gamma rays that are emitted by radioactive cobalt 60 or Cesium 137.
What is the function of the contractile vacuole in plant-like protists? A)maintenance of food levels
B) maintenance of energy levels
C) maintenance of waste levels
D) maintenance of water balance
Answer:
D) maintenance of water balance
As Henry is exercising he pushes against a beam with a force of 25 Newton’s.The beam does not move.Which statement is true.
Answer: During the action there was equal and opposite force.
Explanation: since the force exerted by Henry is equal to the resisting force of the beam it won't move.