Answer:
the moon as I knew; but am not sure yet
How is lactase an example of fitness in humans?
[tex] \\ [/tex]
Evolutionary advantages. Lactase persistence is a text-book example of natural selection in humans: it has been reported to present stronger selection pressure than any other known human gene. However, the specific reasons as to why lactase persistence confers a selective advantage "remain open to speculation".
WHAT THEY DO IN HUMAN BODY?Lactase breaks down the lactose in food so your body can absorb it. People who are lactose intolerant have unpleasant symptoms after eating or drinking milk or milk products. These symptoms include bloating, diarrhea, and gas. Lactose intolerance is not the same thing as having a food allergy to milk.
In pastoralist populations, individuals with the lactase-persistence mutations were more likely to survive, reproduce, and pass on their alleles than people without the mutations, especially in times of famine.
[tex] \\ [/tex]
Hope It Helps!
The percentage of oxygen in the air is 21.0%, but the percentage in air exhaled while breathing is
A. 21.0%
B. 18.0%
C. 16.0%
D. 14.0%
E. none of the above
Answer:
its c
Explanation:
Answer:
e
Explanation:
Explain the relationship between a leaf, plant cell, chloroplast and chlorophyll in terms of photosynthesis.
Answer:
Math Unit 2: Lesson 7
Area of a Circle
Area of a Circle Formula
(A = π r²)
1. Find the area of the circle below:
Area=
2. Find the area of the circle below:
Area=
Explanation:
How many types of rocks can form from the rock cycle?
1
2
3
4
Answer: 3 types
Explanation: igneous, sedimentary and metamorphic.
Answer:
3 types
Explanation:
igneous sedimentary and one more
;
at 21 days into development, the cells are the shape of a flat disk but will fold into a ____.
A.sphere
B.box
C.pyramid
D. tube
Answer:
Animal cells are primarily in spheres or oblong shapes such as ovals. Plant cells are usually tubes or squares/rectangles. I have no idea what cells go into pyramids.
Explanation:
The purpose of DNA replication is to * make changes in base pairs in order for an organism to evolve make an exact copy of a DNA strand for bacterial reproduction to repeat patterns of DNA in order to expand the bacterial genome to transribe information to RNA in order to synthesize proteins
Answer:
make an exact copy of a DNA strand for bacterial reproduction
Explanation:
The purpose of DNA replication would be to make an exact copy of a DNA strand for bacterial reproduction.
DNA replication is a process during which an extra copy of an organism's DNA is made following a series of steps. The replication usually precedes reproduction or the formation of daughter cells. Each daughter cells resulting from reproduction must have a complete genome that mirrors that of the parent or otherwise depending on the type of reproduction.
Without reproduction, DNA replication would not have been necessary.
1. What are the six kingdoms in the six-kingdom
system of classification?
2. What are two things that make archaebacteria
difficult to study?
3. What is the most heterogeneous kingdom in
terms of morphology?
4. What is the difference between a kingdom and a
domain?
The process in which two organisms of different species provide health benetits to each other characterizes which of the following?
Community
ecology
ecosystem
Mutualism
Answer:
Mutualism
Explanation:
It's a mutualistic symbiotic relationship! :)
why is freedom a concern for creationists?
Answer:
Freedom of Religion and Science Instruction in Public Schools" (Yale Law Journal, January 1978, 87:3:515-570), attorney Wendell R. Bird lays the constitutional foundation for demanding equal time in the public schools for "scientific creationism." Because this article is referred to so frequently by creationists, it will be necessary to analyze its main arguments in detail
The sedimentary rock layers are being weathered and eroded at different rates because the rock layers:
Explanation:
Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at the Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles to settle in place. The particles that form a sedimentary rock are called sediment, and may be composed of geological detritus (minerals) or biological detritus (organic matter). The geological detritus originated from weathering and erosion of existing rocks, or from the solidification of molten lava blobs erupted by volcanoes. The geological detritus is transported to the place of deposition by water, wind, ice or mass movement, which are called agents of denudation. Biological detritus was formed by bodies and parts (mainly shells) of dead aquatic organisms, as well as their fecal mass, suspended in water and slowly piling up on the floor of water bodies (marine snow). Sedimentation may also occur as dissolved minerals precipitate from water solution.
To cook food, heat must be transferred from a heat source to and through the food! Is this true or false
Answer:
true
Explanation:
Answer:
I think this would be true!!
Explanation:
Was it correct?
The pattern of common descent is that a new species is slightly different form of an old species, but the number of species does NOT increase.
O True
O False
a unicellular organism splits into two parts during
Answer:
fission
Explanation
Where does asexual reproduction take place? When single-celled organisms (like bacteria and protozoa) just split (or break) into two identical halves during cell division, leading to the creation of new organisms is called fission.
Hope fully this is correct.
Answer:
amorba
Explanation:
unicelluler organism that splits
please help asap it is about mitosis :) !
Answer:
I think its metaphase, tell me if I am wrong:)
Explanation:
the chromatids are pulled by motor proteins along the spindle apparatus toward the center of the cell and they line up in the middle or equator of the cell
Transcribe DNA bases GCA TTA GAT TTA into mRNA, choose the answer
CGU AAU CUA AAU
CGT AAT CTA AAT
GCA UUA GAU UUA
You can test a hypothesis by conducting an experiment.
True
False
Answer:
true
Explanation:
Answer:
true
Explanation:
an experiment will tell you if your hypothesis was correct or not
PLZ HELP ILL GIVE U BRAINLYIST(science)
Answer:
Explanation:
c the answers c
.
1.The observable expression of an allele pair is called a
A. recessive gene
B. genotype
C. monohybrid cross
D. phenotype
Compare the DNA Sequence and circle any single base that is different in the cow and human sequences. How many bases are different?
Complete question:
Below are two partial sequences of DNA bases (shown for only one strand of DNA) Sequence 1 is from a human and sequence 2 is from a cow. In both humans and cows, this sequence is part of a set of instructions for controlling a bodily function. In this case, the sequence contains the gene to make the protein insulin. Insulin is necessary for the uptake of sugar from the blood. Without insulin, a person cannot use digest sugars the same way others can, and they have a disease called diabetes.
1 Using the DNA sequence, make a complimentary RNA strand from both the human and the cow. Write the RNA directly below the DNA strand (remember to substitute U's for T's in RNA)
2. Use the codon table in your book to determine what amino acids are assembled to make the insulin protein in both the cow and the human.
Human DNA CCA TAG CAC GTT ACA ACG TGA AGG AAA
Cow DNA CCA TAG CAT GTT ACA ACG CGA AGG GAC
Analysis
1. Compare the DNA Sequence and circle any single base that is different in the cow and human sequences. How many bases are different? _____
2. Examine the amino acids produced. Highlight in yellow any amino acids that are different in the two sequences. How many are there? ______
3. Could two humans (or two cows) have some differences in their DNA sequences for insulin, yet still make the exact same insulin proteins? Explain.
4. Examine the codon chart and list all of the codons that code for the amino acid leucine. List them.
Answer:
64YesUUA, UUG, CUU, CUC, CUA, CUGExplanation:
Due to technical problems, you will find the complete answer and explanation in the attached files
Fill in the boxes in the template to identify the nucleotide sequence from 3' to 5' of the tRNA anticodon that will recognize codon 5 and the tRNA anticodon
Complete question:
(C) Fill in the boxes in the template to identify the nucleotide sequence, from 3' to 5´ of the tRNA anticodon that will recognize codon 5 and the tRNA anticodon that will recognize codon 510 of the mRNA template and to identify the amino acids that will be added at these two positions.
In the attached files you will find the image
Answer:
Codon Anticodon Amino Acid
5 CGG → GCC → Arginine, Arg
510 UAG → AUC → Stop
Explanation:
Some theory that you need to know to answer the question:
Each tRNA has two important sites. One of them that couples with the codon of the mRNA molecule, named anticodon. The other site couples with an amino acid through the action of the aminoacyl-tRNA synthase enzyme. The whole complex, amino acid + enzyme + tRNA is named aminoacyl-tRNA. Considering that there are twenty amino acids available, there are also twenty complexes of aminoacyl-tRNA, one for each amino acid.
tRNA allows amino acids to align according to the nucleotidic sequence in the mRNA molecule.
Once the new peptidic link joins, placing together the new amino acid to the growing peptidic chain, the binding between the amino acid and the tRNA molecule breaks. The tRNA is now free to join another amino acid and repeat the cycle.
Now, to fill in the boxes, you need to pay attention to two things:
Anticodon: In this box, you need to place the sequence of bases that pairs with the mRNA codon. Amino Acid: In this box, you need to place the amino acid that is codified by the mRNA codon.For instance, let us say that the codon of mRNA is CUC.
The anticodon for this sequence is GAG (because guanine joins cytosine and adenine joins uracyl).
The amino acid placed on the 3´extreme of the tRNA molecule will be the one that is codified by the codon, NOT the anticodon. So, as the codon is CUC, the amino acid will be Leucine, Leu. Do not use the anticodon GAG to fill these boxes. Remember that tRNA is translating information carried by the mRNA, so we need to use this information to grow the protein.
So, in the problem, there are two codons: 5 and 510
Codon Anticodon Amino Acid
5 CGG → GCC → Arginine, Arg
510 UAG → AUC → Stop
Define Chromosome, gene, and chromatid. Draw a picture of a chromosome and label it. Write a brief summary of both videos (at least 5 sentences each). From the second video make sure you include a chart that shows the differences between DNA and RNA.
Answer:
i can only define the terms for you.
Explanation:
chromosome - a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
chromatid - each of the two threadlike strands into which a chromosome divides longitudinally during cell division, each containing a double helix of DNA.
gene - a distinct sequence of nucleotides that forms a part of a chromosome, the order of which determines the order of monomers in a polypeptide or nucleic acid molecule which a cell or virus that may synthesize
can plant cells change shape
Answer: yes
Explanation:
The concern over green house gases is that by increasing their concentration in the atmosphere, these gases will reduce the amount of Oxygen in the atmosphere
making life more difficult to sustain for organisms like ourselves (organisms with high metabolism).
True
False
What can cause the loss of soil that is not protected by plant cover?
A chemical weathering
B. erosion by water or wind
C. mechanical weathering
D. too many organisms in the soil
B. Erosion by water or wind
Which one of these is not a producer?
a. grass
b. Algae
c. Zooplankton
Answer:
zoo plankton because it is not a plant it is a bacteria
Animal Systems:Question 7
The following is a list of several human body systems.
1 Transport of nutrients and gases to cells
2. Contractions/Movement of the body
3. Productions of gametes
4. Exchange of gases
Which two functions of systems in the list describes the circulatory and misstems?
Answers
1 and 4
1 and 3
1 and 2
2 and 3
Answer:
2 and 3
Explanation:
no explanation please
Suggest why red onion is often used when carrying out this investigation
Answer:
the cells in the onions are already dyed also it has a contrastarctary character hope this helps
Explanation:
Describe what might happen in the water cycle if
the amount of solar energy entering the Earth
system decreased.
When the amount of solar energy that enters the system become decreased, what may happen in the water cycle are:
evaporation will reduceclouds won't formprecipitation would dropfreezing will occurThe water cycle can be described as a biogeochemical cycle that depicts how water is being circulated and recycled within, above, and on the earth's surface.
A typical diagram showing a water cycle is attached below.
From the water cycle diagram, we can observe that a vital aspect of the water cycle involves the sun which supplies solar energy that heats up earth.
The solar energy entering earth makes it possible for evaporation of water as vapor which form clouds that leads to rainfall.
The solar energy is also important in melting of ice, thereby converting it to water to goes into oceans for evaporation.
The implication of having an earth system where the amount of solar energy that enters it is reduced is that:
evaporation of water will reduced, clouds will not be able to form, and we won't have enough rainfall, andice would be predominant as low solar energy that is required to melt the ice is reduced.In conclusion, when the amount of solar energy that enters the system become decreased, what may happen in the water cycle are:
evaporation will reduceclouds won't formprecipitation would dropfreezing will occurLearn more here:
https://brainly.com/question/18506855
Use the information in the table to calculate the density of each sample, and enter it in the table.Then compare the properties of these 2 samples
Answer:
don't know the answer bro
Someone please do this for me, due soon. Worth good amount of points, I'll give brainliest, thanks and 5 stars.
Go around your house and hit (or tap) ten different objects. The objects should be different shapes and made of different material (choose things to hit that won’t break!). Each object is a different medium for sound. Try to hit each using the same amount of energy.
Answer:
.
Explanation: