Answer:
Physical properties are characteristics that describe matter as it exists. Some of many physical characteristics of matter are shape, color, size, and temperature. An important physical property is the phase (or state) of matter. The three fundamental phases of matter are solid, liquid, and gas
Explanation:
define Vasoconstriction
in a way a elementary kid would understand
Vasoconstriction occurs when the blood vessels tighten, which causes the blood flow to slow down.
If two heterozyotes for dwarfism have children what proportion of their kids would you expect to be of typical size and not exhibit dwarfism?
Answer:
3/4 or 75%
Explanation:
This question involves a gene coding for height in humans. The allele for normal height (D) is dominant to the allele for dwarfism (d).
If two heterozygotes for dwarfism are crossed i.e. Dd × Dd, the following gamete will be produced by each heterozygote parent:
Dd - D and d
Using these gametes in a punnet square (see attached image), the genotypes of the expected offsprings will be as follows- DD (1) : Dd (2) : dd (1)
(1) DD - typical normal size
(2) Dd - heterozygous normal size
(1) dd - dwarf
The offsprings expected to be of typical size and not exhibit dwarfism are offsprings DD and Dd, which represent 3/4 of the offsprings. Hence, the proportion is 3/4 or 3/4 × 100 = 75%.
What is a common source of proteins within the body (not from food)?
Answer:
I hope this helps
Explanation:
When a cell needs to make proteins, it looks for ribosomes. Ribosomes are the protein builders or the protein synthesizers of the cell. They are like construction guys who connect one amino acid at a time and build long chains. Ribosomes are special because they are found in both prokaryotes and eukaryotes.
Which option contains all of the other options listed?
gene
chromosome******
chromatid
centromere
Answer:
The chromosome contains all of the other options listed.
Explanation:
In eukaryotes, the complete chromosome is composed of only one lineal and extremely long DNI molecule. DNA is intimately associated with two types of proteins: histones, which are structural proteins, and non-histone proteins that mediate different functions of DNA. DNI associated with histones is called chromatin. Histones are responsible for packaging the DNI molecule.
In the interphase, before cellular division, chromatin is in a diffuse, lax, uncondensed state. When cellular division is about to happen, chromatin begins to condensate, and the chromatin strand generates a copy or clon so both of the daughter cells can get the same genetic information. At the beginning of the prophase, DNI is condensed in a well-defined chromosome formed by two sister chromatids. In metaphase, two chromatids joined by a centromere form the typical chromosome.
So, one chromosome is composed of two sister chromatids condensated and joint by the centromere. It looks X-shaped.
Genes are located in chromosomes, specifically in the DNA strand.
Answer:
chromosome
Explanation:
Please help it’s times I’ll mark you brainliest
Answer:
Peptin
Explanation:
which of these is a pure substance that cannot be broken down by a chemical reaction?
Answer: Element
Explanation: An element is a pure substance that cannot be separated into simpler substances by chemical or physical means.
Each element has unique physical and chemical properties.
Plz mark brainliest:)
PLzzz helpp Directions: Analyze the image and answer the question that follows.
1. Which line, red or black, represents a reaction taking place with an
enzyme? How do you know?
Answer:
red
Explanation:
Enzymes lower the activation energy needed for a reaction to occur.
Which of the following would be particularly damaging to the chaparral biome?
a.
wildfires
b.
flooding
c.
drought
d.
none of the above
ANSWER IS D- NONE OF THE ABOVE
Answer:
Wild fires
Explanation:
Because a chaparral biome is sort of a forest.
Answer:
D. None of the above
Explanation:
Chaparal Environments posses organisms that have adapted to wildfires as a result dense vegatation and low humidity during the summer , they have adapted to flooding evidently from the high amounts of precipitation during the winter months, and they have adapted to drought seeming as the majority of the inhabitance store water or adapt to use less of it.
The human body ___________ (can/cannot) produce all the amino acids.
Answer:
only 10 out of 20
Explanation:
Humans can produce 10 of the 20 amino acids. The others must be supplied in the food. ... The essential amino acids are arginine (required for the young, but not for adults), histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. These amino acids are required in the diet.
Why can whales not breathe underwater?
Answer:
Whales are mammals and do not have gills, so they cannot take the dissolved oxygen that is in the water and turn in into a oxygen that they can breath.
Explanation:
Answer:
because they are mammals
Explanation:
the need to breath air into there lungs
how does the internet work
Explanation:
internet is used by everyone this can be useful sometimes. this transmits many data and media across interconnected devices. it works its way to a packet controlling the network which follows the IP ( internet protocol ) and the transport control protocol ( TCP )
(hope this helped )
The epidermis is the most superficial layer of the skin. It is composed of stratified squamous epithelium. Within the epidermis, there are five distinct layers with different features and roles. Match the appropriate skin layer with its description.
a. Stratum corneum
b. Stratum granulosum
c. Stratum lucidum
d. Stratum basale
e. Stratum spinosum
1. : Deepest layer; site of rapid cell division and melanin production
2. : Live keratinocytes connected by desmosomes produce pre-keratin
3. : Cells flatten and fill with keratin, resulting in a grainy appearance
4. : Clear layer found only in thick skin; cells full of keratin
5. : Thick superficial layer of flat, keratinized, dead cells; responsible for dandruff
Answer:
a. Stratum corneum 5. : Thick superficial layer of flat, keratinized, dead cells; responsible for dandruff.
b. Stratum granulosum 3.: Cells flatten and fill with keratin, resulting in a grainy appearance.
c. Stratum lucidum 4. : Clear layer found only in thick skin; cells full of keratin.
d. Stratum basale 1. : Deepest layer; site of rapid cell division and melanin production.
e. Stratum spinosum 2.: Live keratinocytes connected by desmosomes produce pre-keratin
Explanation:
The epidermis has five layers, starting from the deepest one they are:
The stratum basale: is the layer that has the germinative cells, called keratinocytes.
The stratum spinosum: the keratinocytes are connected, and they produce the precursor of keratin and lipids.
The stratum granulosum: the name of this stratum is due to the appearance of the cells. They produce keratohyalin, and the lipids produced in the previous layer are released, creating the layer that protects the skin against dehydration.
The stratum lucidum: They are only in thick skin, like the one that is in the sole of our feet. The cells do not have a nucleus. They are filled with keratin, which is the component of thick skin.
The stratum corneum: the more superficial layer, it is made of dead cells filled with keratine. When new cells ascend to this stratum, the old ones have to be removed by exfoliation or natural peeling.
The five distinct layers of the epidermis with different features and roles are given below: a) Stratum corneum- 5, b) Stratum granulosum- 3, c) Stratum lucidum- 4, d) Stratum basale-1, e) Stratum spinosum- 2.
The epidermis (outer layer of the skin) is the part of the skin that’s visible to the unaided eye and works to protect the body. The epidermis doesn’t have any blood vessels, so it relies on the dermis (the layer of skin directly beneath the epidermis) for nutrients and waste disposal.
The epidermis protects the internal organs, the muscles, the nerves, and the blood vessels. The epidermis also creates new skin cells and produces melanin, which gives the skin its color and reduces the absorption and effect of UV radiation. It protects the body physically, and it also protects the immune system.
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Which of the following organelles would you not find in a plant cell?
Answer:
Animal cells each have a centrosome and lysosomes, where as plant cells do not.
Explanation:
Animal cells each have a centrosome and lysosomes, where as plant cells do not. Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, whereas animal cells do not.
An organism that has adaptations that enable it to hibemate for long periods of time is more likely to by found in which of the following biomes:
forest
desert
grassland
tundra
Help me answer this please ASAP
If the offspring of the cross showed ccdominance, what would the eyes of the offsping look like?
Answer.. the offspring would have one circle eye and one star eye.
Answer:
That is what I would choose
Explanation:
When two different phenotypes of an organism are crossed, a third phenotype is created in which both of the parental traits are present. This is known as codominance.
What are the results of codominance cross?The concept of codominance states that although both phenotypes are dominant, they cannot coexist. Codominance would result in patches rather than merging, with areas of prominent white expression and areas of dominant red expression.
The statements made about codominance are all accurate. The full expression of both alleles is present.
The distinct results of both alleles are present in the heterozygous phenotype. A multiple-allele characteristic has (less than / only / more than) two alleles in the corresponding gene.
Therefore, The offspring would have one circle eye and one-star eye.
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is the pull of gravity on an object.
O a. Mass
O b. Element
N
O c Weight
d. Matter
Moving to another question will save this response.
Answer:
Mass
Explanation:
The measure of the pull of gravity on an object is called weight. For an object to have weight it must have mass.
What is the difference between eukaryotic and prokaryotic cells?
Eukaryotic cells are found in bacteria and prokaryotic cells are not.
Prokaryotic cells are found in plants and animals and eukaryotic cells are not.
Eukaryotic cells contain organelles and DNA enclosed within a nucleus and prokaryotic cells do not.
Prokaryotic cells contain no organelles except DNA enclosed within a nucleus and eukaryotic cells do not.
A group of organs that work together to perform a major function is called
example of kinetic energy.
Answer:
Moving Car. ...
Bullet From a Gun. ...
Flying Airplane. ...
Explanation:
the organelles that most directly provide this energy are known as a
Answer:
The mitochondrion is an organelle that makes energy available to the cells. It is like the power plant of the cell.
Explanation:
hope this helps!!!
Is water abiotic or biotic?
Answer:Abiotic
Explanation:
There are two categories of these factors: abiotic and biotic. Abiotic factors are the non-living parts of the environment that can often have a major influence on living organisms. Abiotic factors include water, sunlight, oxygen, soil and temperature.
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In the fluid mosaic model, where would you most likely find the transport proteins?
Attached to the outer portion of the phospholipid bilayer
Embedded within the hydrophobic and hydrophilic regions of the bilayer
Flipping, alternating between the hydrophobic and hydrophilic regions of the bilayer
Roaming within the phospholipid bilayer
thanks so much
Answer:
B: Embedded within the hydrophobic and hydrophillic regions of the bi layer
Explanation:
They are integral protiens and have to be inside
i took a test
This movement aids the cell membrane in preserving its function as a partition separating the interior and exterior cell surroundings. Thus option B is correct.
What is the role of transport protein in fluid mosaic model?Integral proteins protrude from each end of the phospholipid bilayer and are tucked inside. Larger molecules like glucose can be transported through cell membranes with the aid of integral proteins.
They have sections that match the polarity of the phospholipid bilayer, known as "polar" and "nonpolar" regions.
This movement aids the cell membrane in preserving its function as a partition separating the inside from the outside environments of the cell.
Therefore, in the fluid mosaic model, the transport protein is connected to the phospholipid bilayer's outer layer.
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Which of the following is true of cholesterol? 4 are correct.
A. it makes up part of the cell membrane structure
B. it is the precursor molecule to make sex hormones and bile
C. it is not found in animal products such as beef
D. it enters the cell via cell-mediated endocytosis
E. it is not found in dairy products such as butter
F.it is made by the liver
Answer:
F, it is made by the liver
Explanation:
List five organelles eukaryotes have that prokaryotes do not have. ( 5pts)
Answer:
Lysosomes and peroxisomes, Microtubules, Endoplasmic reticulum, Mitochondria, and Cytoskeleton
Explanation:
The characteristics that eukaryotes have are lysosomes, mitochondria, nucleus, ribosomes, and endoplasmic reticulum.
What are eukaryotes?Eukaryotes are lifeforms with nuclei and other membrane-bound organelles. Eukaryotic organisms include all animals, plants, fungi, and protists, as well as the majority of algae.
Prokaryotic organisms are the ones lacking a well developed nucleus. They do not possess lysosomes, mitochondria, nucleus, ribosomes, and endoplasmic reticulum.
Thus, these are five organelles that are present in eukaryotes but are absent in prokaryotes.
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please help :(( How many Phosphorus atoms are in the chemical equation H3PO4
A. 4 Phosphorus atom
B. 1 Phosphorus atom
C. 12 Phosphorus atom
D. 3 Phosphorus atom
How long has the light from a star 125,000 light-years away been traveling to reach Earth?
Answer:
Explanation:
Jan 02Jan 02, 2020 · Question: "How can the light of stars billions of light ye the maximum distance that light can travel in one year in the vacuum of space. Consequently, it takes billions of years for light to travel billions of light ..., 2020 · Question: "How can the light of stars billions of light years away from the earth have reached us if the earth is only thousands of years old?" Answer: Distant Starlight - A light-year is the maximum distance that light can travel in one year in the vacuum of space. Consequently, it takes billions of years for light to travel billions of light ...
Oxygen atoms normally have 8 protons, 8 neutrons, and 8 electrons. An isotope of
oxygen with an atomic mass of 18 would have two extra
Charged particles
Neutrons
Protons
Electrons
Answer:
The answer is Neutrons
An isotope of oxygen with an atomic mass of 18 would have two extra Neutrons. Hence, option B is correct.
What is an isotope?Isotopes are atoms with the same atomic number but different atomic masses. In other words, atoms having the same number of protons but different numbers of neutrons are called isotopes. Although isotopes have highly similar nuclear properties, they have equivalent chemical properties.
For instance, hydrogen has three isotopes. While tritium (one proton and two neutrons) is radioactive, the other two isotopes are unstable. Stable isotopes exist for most elements. For several elements, radioactive isotopes can also be produced. When compared to lighter isotopes of the same element, heavier isotopes often react more slowly.
An isotope has a different number of neutrons. Therefore, option B is correct.
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True or False we can understand why we see natural resources like copper and gold where they are because we understand under which conditions they formed
Answer:
False
Explanation:
We cannot see the air like wise we can see copper and gold what they are we know which metal they are invented .
I think false