Modern humans show relatively small genetic variation yet exhibit a significant amount of phenotypic variation. Group starts True or False :: True
Answer: true
Explanation:
What did gregor mendel use to discover the principles that rule heredity?.
Gregor Mendel, through his work on pea plants, discovered the fundamental laws of inheritance. He deduced that genes come in pairs and are inherited as distinct units, one from each parent. Mendel tracked the segregation of parental genes and their appearance in the offspring as dominant or recessive traits.
grade7 science how populaation changes quiz biotic and abiotic
Answer:
Biotic factors such as the presence of autotrophs or self-nourishing organisms such as plants, and the diversity of consumers also affect an entire ecosystem. Abiotic factors affect the ability of organisms to survive and reproduce. Abiotic limiting factors restrict the growth of populations.
Explanation:
Cuestions
Explain why you needed to use a water plant for collecting the gas produced in photosynthesis
the conversion of unusable sunlight energy into usable chemical energy,is associated with the actions of the green pigment chlorophyll. most of the time, the photosynthetic process ises water and releases the oxygen that we absolutely must have to stay alive
What do organs, tissue, and organ systems have in common?
Answer:
The body has levels of organization that build on each other. Cells make up tissues, tissues make up organs, and organs make up organ systems. The function of an organ system depends on the integrated activity of its organs. For instance, digestive system organs cooperate to process food.
Relationships between organisms are abiotic factors in ecosystems. True or False
Answer:
True
Explanation:
Both biotic and abiotic factors are Important to each other in an ecosystem, and if one factor is changed or removed, it can affect the entire ecosystem. Abiotic factors are really important because they directly affect how organisms survive.Have a Great Day!
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What is aerobic cellular respiration? Explain the term aerobic, describe the overall goals of aerobic respiration, and list the three main parts or cycles in this process.
Explanation:
It is the process of cellular respiration that takes place in the presence of oxygen gas to produce energy from food. The term aerobic means oxygen. Its goal is to derive energy from macromolecules such as carbohydrates, proteins and fats to carry out various energy-requiring processes.
The three main parts or cycles in this process are Glycolysis, Citric acid cycle and Electron transport chain.
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Factors affecting content of water and salt in the human body(3)
Answer:
Environmental temperature and humidity, altitude, volume of air inspired, air currents, clothing, blood circulation through skin, and water content of the body
Answer:
temperature, concentration gradient and humidity
What is the relationship between the degree of crossing over and the distance between two genes?.
Answer: It is direct; as the distance between linked gene increases, the frequency of recombination increases.
Answer: Direct. The distance is increasing.
Cholesterol is an important component of the cell membrane because *
A-It makes the membrane less fluid, stabilizing the membrane
B-It aids in diffusion
C-It aids in cell recognition
D-It transports large, polar molecules
Answer:
Option A... Because cholesterol prevents membrane from freezing and maintain membrane fluidity
How could sedimentary rock become igneous rock? List the steps.
Answer:
Sedimentary rock can become igneous rock by melting and solidification.
Explanation:
sorry if this doesn't help its the best i can do
1.) You lie deep in the Earth's crust.
2.) You slowly melt from the heat of the earth's mantle,
3.) You erupt out of a volcano as liquid rock (lava) and harden in the cool
air.
What rock do you change into?
There are three types of rocks according to how they get formed. Igneous rocks come from the Earth's interior as lava and erupt out of a volcano, getting cold and solidifying when get in touch with air.
Types of rocks
According to how they get formed, we can mention three different main types of rocks,
MetamorphicIgneousSedimentaryIgneous Rocks
These rocks come straight from the interior of the Earth.
A liquid mass of silicate composition coming from the Earth's core erupts out of a volcano as lava.
Since this melted mass comes from the Earth's interior, its temperature is extremely high.
Lava begins to cool and solidify during its ascent to the Earth's surface.
Igneous rocks are produced by the cooling of magma when they get in touch with air.
Thre are two types of igneous rocks
plutonic rocks ⇒ in areas close to the terrestrial crustvolcanic rocks ⇒ on the surfaceYou can learn more about igneous rocks at
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MARKING BRAINLIEST!!!
1. During photosynthesis, what happens to the energy in sunlight?
2. Sun energy is converted into ______ energy called ______.
The feelings of heat and pain associated with eating hot peppers are primarily due to what mechanism?.
Answer: A specific chemical binding to nociceptors
Explanation:
In eukaryotes cellular respiration takes place in the.
Answer:
mitochondria
Explanation:
Variation in carbon chains is an important source of molecular complexity. How can carbon skeletons vary?.
Answer:Covalent bonds link carbon atoms together in long chains that form the skeletal framework for organic molecules. These carbon skeletons may vary in: ... Compounds with the same molecular formula but with different structures and hence different properties. Isomers are a source of variation among organic molecules.
Explanation:
The carbon skeletons may vary in:
lengthShapeNumber and location of double bondWhat is carbon skeletons?The term carbon skeleton is utilized to depict the example where the carbon iotas are reinforced together in a particle, ignoring molecules of different components and contrasts among single and numerous bonds.
Most substance responses of natural mixtures don't break connections between carbon iotas and thusly leave the carbon skeleton unaltered. In numerous isoprenoids, rings of three, four, or five carbon iotas structure part of the atomic design.
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What letter represents a trench?
a. A
b. B
c. C
d. D
e. E
directions: identify whether it is biotic or abiotic by writing your answer before the number
1. algae
2. dissolve oxygen
3. amphibian
4. temperature
5. fish
6. changing weather
7. phytoplankton
8. trees
9. birds
10. rain
11. insects
12. fertile soil
Answer thank u…………………..
Answer:
130
Explanation:
What do different environments cause different species to do?.
Answer:
Each organism lives in different environments to enable it to survive. All animals from different species have different traits that helps them survive in their environment. And because some animals have many variations of traits in their gene pool it can help them adapt to the changes in their environment.
explain what happens to the mRNA strand if a mutation occurs in the DNA strand
Answer:
Consequently, once it encounters the mutation, the ribosome will read the mRNA sequence differently, which can result in the production of an entirely different sequence of amino acids in the growing polypeptide chain.
What enzyme is needed to convert testosterone to dihydrotestosterone?.
Answer:
5-alpha reductase
Explanation:
The 5 alpha-reductase enzyme acts on these target tissues to convert testosterone to DHT. DHT is largely a paracrine hormone because of this isolated synthesis at a particular target tissue. It is mostly produced in the liver, therefore the systemic circulation only contains modest levels of it.
What role of 5-alpha reductase enzyme?The enzyme 5 alpha-reductase converts testosterone to DHT. The need for 5 -reductase differs with different tissues, as demonstrated by the autosomal recessive genetic condition 5 -reductase deficiency.
By acting on certain target tissues, the 5 alpha-reductase enzyme transforms testosterone to DHT. DHT is largely a paracrine hormone due to this isolated synthesis at a specific target tissue. Only trace levels are seen in the systemic circulation because it is primarily synthesized in the liver.
Therefore, 5-alpha reductase enzyme is needed to convert testosterone to dihydrotestosterone.
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Crickets, grasshopper, cockroaches, and dragonflies are examples of organisms that go through incomplete metamorphosis. A physical characteristic that distinguishes nymph from the other two stages would be that it is-
A wingless
B worm-like
C colorless
D developed
Answer:
A
Explanation:
The answer is Wingless I think.
which of the following type of telescopes could be on the ground?
- gamma
- infrared
- radio
- x- ray
Answer:
x-rays
Explanation:
When does nature provide the
variation and humans select the
favorable traits and breed
individuals that show those
traits?
A. inherited variation
B. natural selection
C. artificial selection
D. fitness
Answer:
b i may be wronggg???? but im pretty sure i remeber a il about this
Explanation:
Proteins to be secreted outside the cell are formed at ribosomes on the surface of the ______ endoplasmic reticulum.
Answer:
Proteins to be secreted outside the cell are formed at ribosomes on the surface of the rough endoplasmic reticulum.
Proteins to be secreted outside the cell are formed at ribosomes on the surface of the rough endoplasmic reticulum.
How protein is synthesized?Ribosomes, which are tiny, elongated organelles with a round shape, are found on the rough endoplasmic reticulum and are responsible for producing those proteins.
After prolonged chase times, secretory vesicles carrying the radiolabeled proteins from the Golgi apparatus to the cell surface merged with the plasma membrane to discharge their contents outside of the cell.
While the smooth endoplasmic reticulum does not contain ribosomes and produces lipids and helps the cell detoxify, the rough endoplasmic reticulum produces protein and contains ribosomes.
Therefore, the rough endoplasmic reticulum is responsible to synthesize proteins to be secreted outside the cell.
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10) In a population of dogs, curly hair is dominant over straight hair. If two parents are heterozygous for this trait, what is the probability that any of their offspring will have straight hair
The probability would be 1/4 or 25%
Monohybrid crossingAssuming that curly hair is represented by A and straight hair by a.
Crossing two heterozygous parents:
Aa x Aa
AA Aa Aa aa
Offspring:
AA - curly hair
Aa - curly hair
aa - straight hair
Probability of curly hair = 3/4
Probability of straight hair = 1/4
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Cell respiration is aerobic because it requires light.
True
False
Answer:
False
Explanation:
An aerobic activity requires oxygen
A large carbohydrate molecule is composed of several subunits, such as glucose.
An example of a large carbohydrate molecule is _______.
Answer: An example of a large carbohydrate molecule is Starch.
Explanation:
What is photosynthesis. ?
Answer:
the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Explanation:
What are things to look for in a liver function blood test?.
The blood level of certain proteins and activity of certain enzymes are some things to look for in a liver function test.
What is a liver function test?A liver function test is a test that tests the function of the liver.
The liver is the largest organ in the body and performs many functions such as
detoxification and protein synthesis.In a liver function test, the level of certain proteins and activity of certain enzymes are assayed such as:
BilirubinAspartame tranaminase.alkaline phosphatase.In conclusion, a liver function test assays protein levels and specific enzyme activity.
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