Answer: mutations that natural selection can work on. 4.) How do scientists calibrate a molecular clock? ... they compare the number of positive mutations that have occurred in a particular species with the number of negative mutations that have occurred
Explanation:
What is discouraged in a traditional economy?
O family traditions
O work
O stability
O change
Answer:
Explanation:
مرحبًا ، أود أن أحاول مساعدتك في عملك المدرسي. إذا كنت تستطيع أن تشرح أكثر فأنا أقدر ذلك.
Your heart works very hard when you run around a lot, pumping blood filled with oxygen and nutrients to the cells in your body.
True
O False
Please answer fast
Answer:
true
Explanation:
Answer:
true
Explanation:
when you run your body needs more oxygen filled blood your heart pumps faster to supply this need
SOMEONE PLEASE HELP ME
You have a sample that has a half-life of 17 years. 1/8 of the sample is the parent isotope.
How old is the sample?
How much of the daughter isotope is left?
ciasiende gratoenle eniulgdod esto mal no se por que estoy escribiendo haci si ago tonet
Compare and contrast the composition of DNA and RNA DNA and RNA both have________ DNA has _______________,but RNA has _______________insteasd
Answer:
1st blank: four nitrogenous bases each. (cytosine, adenine, and guanine)
2nd blank: DNA had thymine
3rd blank: RNA has uracil
What are the two ways nitrogen gas is turned into a form plants and animals can use?
A: Lightning and Worms
B: Lightning and Bacteria
C: Bacteria and Worms
D: Bacteria and Fungi
Answer:
B
Explanation:
Just studied this
Answer:
I think it C if you get it wrong sorry please don't blame me
In the overall equation for photosynthesis, six molecules of carbon dioxide results in six molecules of
Answer:
Glucose,
Explanation:
6 molecules of carbon dioxide are required, one of each carbon atom is glucose
Which hazard are we more likely able to predict? Tornado or earthquake. Explain your answer.
Answer:Earthquake
Explanation:
What kind of genetic disorder is represented in the pedigree?
Answer:
an autosomal recessive disorder
Explanation:
Autosomal recessive disorders are inherited diseases caused by the presence of two copies (alleles) of an abnormal gene, thereby only homo-zygous recessive individuals are affected by this type of disease. In consequence, although both parents don't express the disease, they can be carriers and pass this recessive disorder to their offspring who express the disease. In this case, the pedigree shows that heterozygous parents are not affected but they are carriers of the recessive allele for this disease, thereby some offspring express the trait. The black circle (female) and the black square (male) indicate affected individuals in the pedigree chart. Since both parents are heterozygous, 1/4 (25%) of all offspring would be expected to have the autosomal recessive disorder.
bronchitis affects which two structures
what is chemotropism ?
Answer:
its the growth of organisms navigated by chemical stimulus from outside of the organism.
Explanation:
example would be the growth of pollen tube down to the ovule in the ovary through the stigma and style during fertilization in order to respond to the presence of sugars in the style.
1. List 3 disadvantages of selective breeding.
2. Organisms of the same species can breed to produce.
a) Fertile offspring
b) Infertile offspring
c)Cute babies
3. A species at risk of extinction is considered a what type of species?
a)Disadvantaged species
b)Endangered species
c)In danger species
4. List 3 ethical issues associated with the production of GM crops
Explanation:
1.
1)it can lead to a loss of species variety
2)it can create offspring with different traits
3)it can change the evolution of species
2.
a)fertile offspring
3.
b) endangered species
4.
1) potential harm to human health
2)environment issues
3)can effect other crops for farmers, causing agricultural problems
Please help will mark brainpower pic below
Answer:
The use of sunlight to make food :)
Answer:
The use of sunlight to make food.
I don't understand what this is saying, could someone help to me better understand?
Write out the equation for photosynthesis (label the reactants and products, circle the waste products)
Answer:
6CO2 + 6H20 + (energy) → C6H12O6 + 6O2 Carbon dioxide + water + energy from light produces glucose and oxygen.
Explanation:
What are 2 tertiary consumers, 2 producers, 2 primary consumers and 2 secondary consumers?
Answer:2 tertiary consumers could be a Bear and a Wolf
2 Secondary Consumers could be a Bird and a Fish
2 Primary consumers could be a worm or a snail
2 Producers could be Grass and Algae
Explanation:
poggies
what do the phase changes condensation, evaporation, and crystallization have in common?
Answer:
They are all a part of the water cycle.
Explanation:
Hope this helps!!!
Mendel wanted to find out if the pattern of inheritance for one trait affected the pattern of inheritance for another. What experamint did he perform to test this idea
Answer: He performed dihybrid crosses
Explanation:
Dihybrid cross is simply refered to as a cross that is done for two genes that are different with regards to their traits. For example, if we cross two maize plants which have different shapes and color let's say that one is white and round while the other maize's colour is yellow and its shape is wrinkly.
Since Mendel wanted to find out if the pattern of inheritance for one trait affected the pattern of inheritance for another, the experiment performed will be dihybrid crosses.
What is uncoiled,
stringy DNA
called?
A. Chromatin
B. Chromosomes
C. Chlorophyll
D. Sister
Chromatids
A. Chromatin is the uncoiled, stringy form of DNA in the nucleus of a cell.
What is chromatin?It is made up of DNA molecules and associated proteins, such as histones, that help to package and organize the DNA into a more compact structure. Chromatin can take on different forms, ranging from loose and loosely coiled to tightly packed, depending on the stage of the cell cycle and the specific needs of the cell.
When a cell is preparing to divide, the chromatin condenses and forms distinct structures called chromosomes, which can be visualized under a microscope. Chromosomes contain the genetic information that is passed from one generation to the next.
Learn more about chromatin, here:
https://brainly.com/question/11073325
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what happens to light as it passes through the prism
Answer:
light bends
Explanation:
the colours that makeup white light get separated, this happens because each colour has a particular wavelength and each wavelength bends at a different angle
Question 7 (1 point)
How are humans changing the carbon der
Lesson 1.10
all of the choices
Answer:
Human activities affect the carbon cycle through emissions of carbon dioxide (sources) and removal of carbon dioxide (sinks). The carbon cycle can be affected when carbon dioxide is either released into the atmosphere or removed from the atmosphere.
Explanation:
does this help
Can you write an essay about what makes a good rapper.
I will mark you Brainly.
Answer:
There are many rappers out there in the world yet only a few of them are really well known and recognized. Of course this is because they meet peoples expectations. Different people have different opinions on what makes a good rapper. Things that I think make a good rapper is that they need to have good flow, meaningful lyrics that actually make sense and not just rhyme any word with another that doesn't make sense. Another thing is how they are like as a person as well. If they are a pretty decent human being and meets peoples expectations then they will be considered as a good rapper. If the person is not only ignorant but also can't rap well then they are considered bad. Like I said many people have different opinions but these are just mines.
Explanation:
You may change anything you would like but I hope this helped!
why is endosymbiotic theory not a law in science?
Answer:
Many scientists were skeptical of the endosymbiotic hypothesis because it didn't seem to fit into the theory of evolution as it was understood then. Between 1900 and 1950, biologists made many key discoveries in the field of genetics by focusing on small, random changes in DNA — mutations — that occur when a cell reproduces.
Explanation:
help will give brainlist
Answer:
Its B or C but im pretty sure its C
Answer:
d. ...............
What would the amino acid sequence be for the following piece of RNA: AUG–CGC–AUU–GAC–CAA?
Answer:
This is what my teacher gave me to figure out the amino acid sequences. And it was confusing at first, but I eventually got it. So, hopefully it will help you too. Let me know if it helps. Or if it does not so that I can try to be more helpful.
Explanation:
This is a codon wheel/chart, whatever you want to call it. I attached the codon chart/wheel. So that you can see it. Let me know if you can not see it.
all of the following conditions helps preserve organisms as fossils EXCEPT A)quick burial by sediments B) hard parts. C) protection from scavengers. D) activities of microorganisms
Answer:
D) activities of microorganisms
Explanation:
CORRECT
What are three types of wombats?
Answer:
Explanation:
(Hairy Nosed Wombats)
(Bare Nosed Wombats)
and
(Common Wombat)
(Image of Common Wombat)
Which statement is best supported by the data in the graph?
Answer:
I cant answer this I need the graph and the statements
Answer:
you need the graph
Explanation:
In which direction does the Sun appear to move across the sky?
from west to east
from east to west
from north to south
from south to north
What is the difference between RNA vs DNA
What is the similarities between RNA vs DNA
Answer:
DNA contains the sugar deoxyribose, while RNA contains the sugar ribose. ... DNA is a double-stranded molecule, while RNA is a single-stranded molecule. DNA is stable under alkaline conditions, while RNA is not stable. DNA and RNA perform different functions in humans
Answer:
RNA’s sugar is Ribose,while DNA has Deoxyribose
Explanation:
Which of the following efforts is a sustainable way to contribute positively to
a Millennium Development Goal?
A. Using World Bank funds to buy all of a developing nation's
nonrenewable resources
O B. Clearing a forest to provide one month of sustenance for a small,
impoverished community
C. Redistributing the world's resources so that every human has the
same degree of wealth
O D. Opening clinics in a developing nation so that poor women can get
screened for HIV
Answer: D, Opening clinics in A developing nations so that poor woman can get screen for HIV.
Explanation: ap3x
Answer:
D
Explanation:
I just took the quiz
what are the symbiotic relationship between maple tree and birch tree plss help rn
Answer: A mutualistic relationship between the mycorrhizae and the roots of the trees. ... What is the difference between Pine Trees and Maple Trees? ... or wherever else Birch trees are common (they have a symbiotic relationship with birch trees).
Explanation: