Answer:
Changes to short stretches of nucleotides are called gene-level mutations, because ... A deletion mutation occurs when a wrinkle forms on the DNA template strand and ... sequence with a different set of reading frames is transcribed to mRNA (b). ... can also lead to another type of mutation known as a frameshift mutation
natural selection is an example of a mechanism of evolution. does this mechanism produce a change in individuals or population? explain
Natural selection refers to the procedure where the species better amended to their surrounding appear to survive and generate more offspring. Natural selection refers to one of the mechanisms that make modifications in the frequencies of genes in populations and thus, it is the mechanism of evolutionary change.
However, the phenomenon of genetic drift and natural selection cannot take place unless and until there is a genetic variation, that is unless some individuals are genetically distinct from others.
Air quality is important to maintain for the health of all animals and plants. True or false
Answer:
true
Explanation:
seems self explanatory
what correctly describes the relationship of genes , dna , proteins and traits
how do cells compare in size to things like rice and salt ?
are building blocks and molecules the same
and are there building blocks to fiber if so what is it
Answer:
pay attention in class
Explanation:
where do convection currents occur
need help fast
Answer:
Convection currents occur in the Earth's mantle.
Answer:
in the mantle of the earth
Explanation:
Describe the effect on an enzyme of an increase in environmental temperature above the optimum temperature range of the enzyme.
Answer:
In an environmental temperature above optimum temperature will cause the enyzmes to denature (deform), because when they denature the subtrate will no longer fit into the enzyme
The effect on an enzyme of an increase in environmental temperature above the optimum temperature range of the enzyme - denature the enzyme and lose the specific shape of the enzyme leads to losing its activity.
An enzyme is a substance that acts as a catalyst in living organisms, regulating the rate at which chemical reactions proceed without itself being altered in the process
Raising temperature generally speeds up a reaction, and lowering temperature slows down a reaction.extremely high temperatures above the optimum temperature can cause an enzyme to lose its shape (denature) and stop workingThus, the effect on an enzyme of an increase in environmental temperature above the optimum temperature range of the enzyme - denature the enzyme and lose the specific shape of the enzyme leads to losing its activity.
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What are the three metabolic processes that make up cellular respiration?
Answer: It is glycolysis, the tricarboxylic acid cycle, and oxidative phosphorylation
Explanation:
PLZ HELP ME !!!!!!!!!!!!!!!!1
Answer:
Anaphase
Explanation:
Because it shows separation of chromosomes which occur in anaphse
What advantage does nuclear power have over power produced through the combustion
of fossil fuels?
A. Nuclear power produces only greenhouse gases, while combustion of fossil
fuels produces pollutants.
B. Nuclear power does not directly produce greenhouse gases or air pollutants,
while combustion produces both.
O c. Nuclear power produces only air pollutants, while combustion of fossil fuels
produces greenhouse gases.
XO D. Nuclear power uses a renewable fuel resource, while fossil fuels are
nonrenewable resources.
Answer:
B. Nuclear power does not directly produce greenhouse gases or air pollutants,
while combustion produces both.
Explanation:
Ap€x
Confers with needles growing in clusters generally have how many needles per cluster?
Two to three
Three to five
Four to six
Five to nine
Answer:
d
Explanation:
Answer:
b. three to five
Explanation:
Explain how different forms of a gene are distributed to
offspring.
Answer: During gamete formation, the alleles for each gene segregate from each other, so that each gamete carries only one allele for each gene. an individual gene may code for a specific physical trait, that gene can exist in different forms, or alleles.
What are genes?
Genes are an basic physical and functional unit of heredity.Genes are what make our DNA.
Hope this helps
-Tobie the dog
Which of the foldwing is the most important in determining how quickly materials can move into and out of
a cell? (A) the volume of the cell (B) the mass of the cell (C) the surface area of the cell (D) the location
of the cell in relation to its environment.
Answer:
b the mass of the cell
Explanation:
Which diagram best illustrates the flow of energy in an ecosystem?
Answer:
Food chain
Explanation:
food chain
A food chain is a simple diagram that shows one way energy flows through an ecosystem
Why would scientists use a spectrometer in space?
A. To maintain a constant air supply on board a space shuttle
B. To convert light from stars into usable energy for humans
C. To detect the birth and death of distant stars and galaxies
D. To study the chemical composition of the surface of a planet
Answer:
B. A spectrometer measures the wavelength and frequency of light, and allows us to identify and analyse the atoms in a sample we place within it.
Explanation:
Answer:
D. To study the chemical composition of the surface of a planet
Explanation:
took the test
Which three observations provides evidence of a cold air mass is moving towards a warm moist air mass over a city? ASAP 20 points!!!!!
Name four RNA viruses that jumped from animals to humans.
Explanation:
SARS, Ebola, swine flu, rabies
Place the organisms or events in order from when they first appeared on Earth to present (MA = millions of years ago and TA = thousands of years ago)
Usatestprep timeline need help
Hello. You have not informed which bodies the question refers to, which makes it impossible for it to be answered accurately. However, I will try to help you in the best possible way.
As you may already know, a timeline is a diagram that shows the events that occurred in a given period of time. In this case, to answer your question, you must make a timeline and start presenting organisms and events from the oldest to the youngest, beginning to build the timeline from right to left.
Regarding organisms, we can say that fungi and plants are the oldest and arose about 500 million years ago. Then came the insects and arachnids, followed by the amphibians and then the mammals and finally the birds.
Explain the effect of the different SA:Vol ratios on the rate of osmosis into the potato.
WILL MARK BRAINLIEST ANSWER
Answer:
a larger surface area will mean quicker osmosis
Answer:
a larger surface area will mean quicker osmosis
Explanation:
here is a larger area meaning a larger difference in concentration
hope this helped
PLS HELP QUICK
why is endosymbiotic theory not a law in science?
PLEASE HELP :)
Based on the data in the table in part C, what effect does decreasing the temperature from 4°C to 0°C have on the sample’s density?
Answer:
As the temperature of the water decreases from 4°C to 0°C, the density decreases slightly.
Explanation:
platos answer.
what type of symbiosis is a lizard living in a tree?
Answer: Commensalism
Explanation: The tree is neither helped no harmed
besides urination , another important activity in which water is substantially lost from the body is
a. salivation
b. defaection
c. expiration
d. inspiration
which elemet are metal
Answer:
ELEMENT
Neptunium
Plutonium
Americium
Curium
By definition, a metal element is an element that form positive ions and has metallic bonds. Most elements on the periodic table are metals. Examples of metal elements include iron, copper, silver, mercury, lead, aluminum, gold, platinum, zinc, nickel and tin
What does tainted mean?
A. colorful
B. contaminated
C. extinct
Answer:
Its B-Contaminated hope this helped in any way!!! have a nice day!!
Explanation:
Some liquid is collected from the xylem of plant stem whats is the substance that present in this collected liquids?
Answer:
mineral ions present in the liquid collection such as Mg2+ which is to be carried to the leaf of the plant essentially for chlorosis
what are some traits that dinosaurs are grouped by
Answer:
Main characteristics dinosaurs share:
-They had an upright stance, with legs perpendicular to their body. ...
-Like other reptiles, they laid eggs.
-With the exception of some birds, for example penguins, dinosaurs lived on land, not in the sea.
-Their skull had a hole between the eye socket and nostril.
Hope it helps
Which activity contributes to an increase in the concentration of greenhouse
gases in the atmosphere?
Answer:
D. Deforestation
Explanation:
Loss of forests contributes as much as 30 percent of global greenhouse-gas emissions each year--rivaling emissions from the global transportation sector.Hopes this helps. :)
Answer:
D
Explanation:
Just took the quiz
The outermost layer of the Earth that contains the continents and the oceans. a) mante od outer core b) crust d) inner core
Answer:
B.) crust
Explanation:
The ocean floor and continents are all part of the crust. This outermost layer has a thickness of approximately 5-50 km and is divided into 2 parts: continental crust and oceanic crust, corresponding to the continents and oceans, respectively.
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