16. List three reasons why the young earth could not support life.
2. Who was the first to clearly define the idea of
a species?
Abeka Science 7th G
The most famous definition of a species comes from the 20th century German-born biologist Ernst Mayr, who emphasised the importance of interbreeding.
3. Myth: Tigers and goldfish are not related. o Fact: Tigers and goldfish are related. o Evidence:
Answer:
The correct answer is - Tigers and goldfish are both vertebrates. Vertebrates are animals that have spines and internal bone structures.
Explanation:
Tigers and goldfish belong to the same phylum but different Classes that suggests that they both are not very closely related but have some similarities and related.
Dorsal neural tube, a bilateral symmetry, a notochord, circulatory system, are some of the features that are shared by both organisms. These characters confirm that these two organisms are related.
Answer:
The correct answer is - Tigers and goldfish are both vertebrates. Vertebrates are animals that have spines and internal bone structures.
Explanation:
What part of a nuclear fuel rod is reused for nuclear weapons after its spent?
A-Uranium
B-Plutonium
Answer:
Uranium
Explanation:
I had it on a quiz
Plutonium is the wasted portion of a nuclear fuel rod which is reused for nuclear weapons. So, the correct option is B.
What is Plutonium?Plutonium-239 is an explosive substance that may be used as nuclear reactor fuel or as a nuclear bomb explosion. It is created from uranium-238 in nuclear reactor fuel rods via a process known as nuclear transmutation. When uranium-238 receives a neutron, it is transformed into plutonium-239, which can fission and release energy.
The plutonium-239 produced in a nuclear reactor is utilized as fuel, together with uranium-235, to continue the nuclear chain reaction. The plutonium-239, on the other hand, may be extracted from spent nuclear fuel and refined for application in nuclear weapons. Nuclear reprocessing is a contentious problem due to the concerns of nuclear proliferation and the possibility for nuclear terrorism.
Therefore, the correct option is B.
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Which of these does sound travel fastest through?
O steel
O water
O air
O Sound travels the same speed through all mediums.
Answer:
Steel
Explanation:
In fact, sound waves travel over 17 times faster through steel than through air. Sound waves travel over four times faster in water than it would in air
Answer:
Steel
Sound travels fastest in steel.
Hope it will help :)
Use the 7 properties of life to research an organism.
Explanation:
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Describe the preparation of the following mixtures
3.In the same way coffee is a mixture of water caffeine and other components of coffee. It could be a homogeneous mixture (everything is completely dissolved in water or a heterogeneous mixture (some of the substances may not be fully dissolved; e.g., milk.)
Explanation:
I Couldnt Tell What were The Object aside From The coffe--or was Number 3 not coffe?? - anyways That Is all I can answer
The following mixtures are made by mixing the components with each other.
What are mixtures?A mixture is a substance comprised of two or more additional chemical compounds or substances that do not chemically combine. It is really the physical blending of two or more substances such that they may still be distinguished from one another when combined as solutions, suspensions, or colloids. Physical means can be used to separate them. The different components of any combination are not created via any sort of chemical transformation. As a result, each component's unique qualities are unaltered.
A mixture's constituent parts also do not combine chemically to form a new material, in contrast to a compound. Instead, they just combine while retaining their individual traits. The lemonade seen above is a mixture since the ingredients are not present in predetermined amounts. Even though it has more or less sugar or lemon juice, it will still be referred to as lemonade.
Therefore, mixtures are made by mixing the components together.
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The cell membrane is composed of a phospholipid bilayer containing proteins and carbohydrates. Choose ALL of the statements that accurately reflect the
structure and its function.
1. Membrane proteins may be enzymes to catalyze metabolic reactions within the cell.
2. Membrane proteins may contain cholesterol to serve as identification tags for other cells.
3. Channel proteins allow a specific molecule to cross the cell membrane that is unable to cross the
phospholipid bilayer unassisted.
4. Receptor proteins bind to ligands, initiated cell signaling pathways.
5. Molecules that are large or nonpolar must use membrane proteins for transport
Answer:
option 1,3, and 4
-Membrane proteins may be enzymes to catalyze metabolic reactions within the cell.
-Channel proteins allow a specific molecule to cross the cell membrane that is unable to cross the phospholipid bilayer unassisted.
-Receptor proteins bind to ligands, initiated cell signaling pathways.
Explanation:
I did the assignment on USATestprep and got them right.
The statements accurately reflect the structure and function of the phospholipid bilayer are:
1. Membrane proteins may be enzymes to catalyze metabolic reactions within the cell.
3. Channel proteins allow a specific molecule to cross the cell membrane that is unable to cross the phospholipid bilayer unassisted.
4. Receptor proteins bind to ligands, initiating cell signaling pathways.
What are phospholipids?Phospholipids are distinct compounds with many uses. They are common and serve as the primary building blocks of cellular membranes.
Phospholipids, which are arranged as lipid bilayers, are crucial for the composition and operation of biological membranes. These layers contain proteins and carbohydrates that help in the transport of material from and to the cell.
Therefore, the correct options are 1, 3, and 4.
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Which of the following statements is NOT true about the stratosphere?
A.
The stratosphere contains a layer of ozone.
B.
The stratosphere absorbs ultraviolet radiation which protects life on Earth.
C.
Commercial jet aircraft avoid the stratosphere due to the high turbulence there.
D.
The stratosphere is above the troposphere and below the mesosphere.
Answer:
Explanation:
After doing some g0ogle searches, I believe C is incorrect. Stated from g0ogle, "Commercial jet aircraft fly in the lower stratosphere to avoid the turbulence which is common in the troposphere below. " It seems to me that jets avoid the troposphere, which is below. <3
Answer:
C
Explanation:
Which describes the process of glycolysis?
☝︎sorry I didn’t find science.
ANYWAYS-
1. Could the extinction of lions affect the grass population? Why or why not. EXPLAIN PLS（╹◡╹）♡ in a sentence to be specific ^^
Which example demonstrates the idea that all cells arise from other cells?
Answers:
a hair cell developing pigments for brown color
a stem cell turning into a skin cell
an older skin cell flaking off of a body
a fat cell storing fat molecules
Answer:
A stem cell turning into a skin cell
Explanation:
As usually the process of cell division involves the idea of the cell arising from other cells and mostly stem cells undergo mitosis which again is a process of cell division hence demonstrating that the cell arise from other cells either through division.
Definition: Literally, one-celled.
Example: Some bacteria are this.
Answer:
single celled
Explanation:
5. A dedicated earth science student using
an aneroid barometer measures the air
pressure at the base of Slide Mountain
as 1016.0 mb. At the same time another
dedicated earth science student measures
the pressure at the top of the mountain.
Which pressure reading could be correct
at the top of Slide mountain?
(1) 1016.0 mb (3) 1025.7 mb
(2) 988.5 mb (4) 1040.0 mb 5
Answer:
(2) 988.5 mb.
Explanation:
The air pressure descends as we ascend. In other words, they are inversely proportional.
The air pressure descends as we ascend the mountain because the air molecules that are above us in high altitudes are fewer than the number of air molecules that are above us in the base of the mountain. So, the exerted pressure of the molecules on ourselves is lower in high altitudes.
Due to the reason mentioned above, we can deduce that the only correct option is option number two since the other ones show increasing or the same pressure, which is not possible as we ascend.
A barometer is an instrument that is designed for measuring the changes in air pressure.
The aneroid barometer has metal chamber as when the air pressure increases the walls of metal push in and when the pressure is low they come out. The chamber is connected by the springs and needle. If the pressure of the base of a mountain is about 1016.0 MB. The pressure of the top of the mountain is 1025.7 MBHence the option 3 is correct.
Learn more about Slide Mountain.
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Where does the lamp in the room you're in now get its energy?
Answer:
from a plug in the wall
Explanation:
o.0
What instrument is used to measure the average kinetic energy in a substance? calorimeter thermometer spectroscope voltmeter?
Answer:
The instrument used to measure the average kinetic energy of particles in a substance is thermometer. A measure of the average kinetic energy of particles in a substance is temperature
Explanation:
whats the structure of a neuron?
Answer:
A typical neuron consists of a cell body (soma), dendrites, and a single axon. The soma is usually compact. The axon and dendrites are filaments that extrude from it. Dendrites typically branch profusely and extend a few hundred micrometers from the soma.
haw are living organisms department on the soil?are organisms that live in water totally independent of soil as a resource
Answer:
Organisms are dependent upon soil. Plants/Producers takes up minerals and water from the soil . ... Organisms living in water are not independent of soil as resource as they also consume food that is made from soil directly or indirectly.
Soil forms an important element for the survival of living organisms. All living organisms, such as microbes, insects, humans and plants rely on soil to live. Animals rely on plant for food. Soil provides anchorage to the roots and for the plants to grow properly. Soil provides a habitat for many microbes and small animals, which in return increases the fertility of the soil by decomposing complex organic compounds.
Organisms that live in water are indirectly dependent on the soil. Some of the aquatic animals depend on the aquatic plants for their food. These plants require certain minerals for their growth. These minerals are carried to water bodies from soil by rivers, rain fall etc. In the absence of these dissolved minerals from the soil to these water bodies, aquatic plant would not be able to grow and thus, affect the aquatic food chain, eventually.
The ends of the DNA chain are made up of several repeating nucleotides that do not function in genetic instruction, or as genes. These end nucleotides are called ______.
chromatids
telomeres
centromeres
histones
Answer:
histones
Explanation:
The figure to the right shows genetic material
What information confirms that this is an RNA
molecule?
What blood types are possible for a child whose parents both have AB blood type?
IA
II. B
III. AB
IV. O
O A. Only
OB. I,II, and I
C. I and II
D. III and IV
Answer:
Two parents with AB blood type can have a child with the possible blood types of A, B, and AB.
Explanation:
The blood types that are possible for a child whose parents both have AB blood type is A, B, and AB. The correct option is B. I, II, and III.
What are the blood types?Blood types are the different types of blood groups that are different in different organisms. The different blood types are A, B, AB, and O. The blood groups are important to know because only the same blood group can be transferred to another human if they needed blood.
If the parents are of the AB blood group, then the offspring will have only chances of having A, B, or Ab blood group.
Thus, the correct option is B. I, II, and III regarding possible blood type for children whose parents both have AB blood type.
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what types of cells are made by meiosis
Answer:
Meiotic cells
Explanation:
Answer:
The cells made by meiosis genetically differ from the ones made by mitosis. When a cell is created by meiosis, the cell's chromosomes are greatly reduced thus producing four Gamete cells. Gamete cells are reproductive cells and are used either as sperm or egg cells.
(Chromosomes: A thread-like structure of DNA (nucleic acids and proteins) that carries genes.
Hope this Helps!
drag and drop grey to the area
Answer:
The top left is the diploid parent cell
In the meiosis, the upper-most cell is the diploid parent cell; the below image explains the crossing over, and then independent assortment is seen in the order to make two haploid daughter cells at the end of meiosis I, and in meiosis II, four daughter cells will be formed.
What role does meiosis play in gamete formation?Meiosis is a type of cell division that occurs in organisms that reproduce sexually and plays a crucial role in the formation of gametes, which are the cells that are involved in sexual reproduction, during this process, a cell's DNA is replicated, and then the cell divides into four daughter cells, each with half the number of chromosomes as the parent cell and this process is important because it ensures that the gametes produced by an organism will have the correct number of chromosomes, which is necessary for the proper development of the offspring.
Hence, in the meiosis, the upper-most cell is the diploid parent cell; the below image explains the crossing over, and then independent assortment is seen in the order to make two haploid daughter cells at the end of meiosis I, and in meiosis II, four daughter cells will be formed.
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This is an onion root tip at low power (100x). The cells are too small to distinguish individual phases. What phase do most of the cells appear to be in?
Answer:
Interphase
Explanation:
The phase in which most of the cells appear to be in is interphase.
This is so because cell's life is spent more in interphase and in this phase growth of cells and at the end their replication takes place. So cells get more time in interphase to grow and replicate, which makes more cells to appear to be in.
Hence, the correct answer is "Interphase".
Which of the following statement is not true based on the diagram above?
B or D
dinesbfiensnfirke
Explain why the science of bite mark analysis IS or IS NOT as “exact as other types of forensic science.
Answer:
Bite marks are a little easier to identify and don't require DNA identification
Explanation:
When the Bite marks are a little easier to identify and also they don't require DNA identification.
What are Bite Marks?
The bite-mark research is extremely difficult, with many elements involved in a forensic dentist's capacity to define the identity of the perpetrator.
The activity of a person's jaw and tongue when he or she bites contributes to the kind of effect that is left.
Though the science after bite marks has been debunked, it resumes being used in courts. And when introduced as scientific proof by so-called professionals in court, bite marks seem to show jurors a false sense of certainty.
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can someone please help me
A sugar farm near the coast of Florida applies a nitrogen based fertilizer to their soil three times a year. When rain falls on these fields after it has been fertilized some of the fertilizer runs off into the ocean causing the nitrogen levels in the water to increase. The increase levels of nitrogen can lead to many ecological effects beginning with the rapid growth of algae. This process is known as eutrophication.
How can eutrophication affect other organisms in the water?
Group of answer choices
The algae provide food for fishes and other organisms, leading to decreased algae populations.
The oxygen in the water is used up as algae is decomposed, reducing the amount available to other organisms.
The water becomes better able to support aerobic organisms.
The extra nitrogen provides additional food for the other organisms, increasing their population.
Answer:
The algae provide food for fishes and other organisms, leading to decreased algae populations
Explanation:
Excessive nutrients lead to algal blooms and low-oxygen (hypoxic) waters that can kill fish and seagrass and reduce essential fish habitats. ... Eutrophication sets off a chain reaction in the ecosystem, starting with an overabundance of algae and plants.
What could increase the rate of water uptake by a shoot
A. covering the shoot with a black plastic bag
B. covering the shoot with a clear plastic bag
C. removing the leaves from the shoot
D. shining a bright light on the shoot
Explanation:
May be d is the answer . I'm not sure
Explanation:
Answer is D ok
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Please needed as soon as possible thank you I appreciate it!
Answer:
A
Explanation:
I belive it would be A, I had to learn something like this a while back. The color spectrum consists of Roy G Biv (Red, orange, yellow, green, blue, indigo, violet) and it reflects. So it's a scattering of light.
