Answer:
Diffusion
Explanation:
Diffusion is the spontaneous movement of gases, without the use of any energy or effort by the body, between the alveoli and the capillaries in the lungs.
how does hydrogen bond DNA strands together?
Answer:hydraulics. In each linear strand there are covalent bonds and strong bonding between bases, sugars and phosphate groups (both within each component and between components). Hydrogen bonds occur in a complimentary combination between the 2 strands and include a base with one strand, and the base with the other.
Explanation:
Identify the functions of the labeled parts.
Answer:A=Ureters
B=Urethra
C=Bladder
D=Kidney
Explanation:I think it’s right ,lol
Answer:
A Ureters
B Urethra
C Bladder
D Kidney
Explanation:
The function of the large intestine is to....
A. send bile to the small intestine
B. digest protein
C. reabsorb water from waste
D. store food
Answer: the answer should be C
Explanation:
A geneticist is mapping the chromosomes of the newly captured gremlin. Stripe is heterozygous for three linked genes with alleles Bb, Ee, and Hh that determine if gremlins have biting teeth (B), are evil (E), and have hair (H). In order to determine if the three genes are linked, a standard testcross was done, and the 1000 offspring had the following genotypes: 48 bb ee Hh 36 Bb ee hh 400 Bb ee Hh 4 Bb Ee Hh 426 bb Ee hh 46 Bb Ee hh 38 bb Ee Hh 2 bb ee hh What is the recombination frequency between genes E and B
Answer:
The recombination frequency between genes E and B is 0.1 = 10%
Explanation:
Available data:
Cross: BbEeHh x bbeehh
F1) 1000 individuals in total
48 bb ee Hh 36 Bb ee hh 400 Bb ee Hh 4 Bb Ee Hh 426 bb Ee hh 46 Bb Ee hh 38 bb Ee Hh 2 bb ee hhTo know if two genes are linked, we must observe the progeny distribution. In a tri-hybrid cross, If individuals, whose genes assort independently, are test crossed, they produce a progeny with equal phenotypic frequencies 1:1:1:1:1:1:1:1. If we observe a different distribution, that is that phenotypes appear in different proportions, we can assume that genes are linked in the heterozygote parent.
In the present example, the phenotypic ratio shows different proportions than the expected ones if they were not linked.
We can recognize the parental gametes in the descendants because their phenotypes are the most frequent, while the double recombinants are the less frequent. And simple recombinant gametes produced by the cross, which frequencies are intermediate.
Parentals:
400 Bb ee Hh 426 bb Ee hhDouble recombinants:
4 Bb Ee Hh2 bb ee hhSimple recombinant
48 bb ee Hh 36 Bb ee hh 46 Bb Ee hh 38 bb Ee HhComparing the parental and the double recombinant we will realize that they only change in the position of the alleles E/e. This suggests that the position of the gene E is in the middle of the other two genes, B and H, because in a double recombinant only the central gene changes position in the chromatid.
B------E------H
Now we will call Region I to the area between B and E and Region II to the area between E and H.
Once established the order of the genes we can calculate distances between them, and we will do it from the central gene to the genes on each side. First We will calculate the recombination frequencies, and we will do it by region. We will call P1 to the recombination frequency between B and E genes, and P2 to the recombination frequency between E and H.
P1 = (R + DR) / N
P2 = (R + DR)/ N
Where: R is the number of recombinants in each region, DR is the number of double recombinants in each region, and N is the total number of individuals. To calculate the recombination frequency, we have to know that 1% of recombinations = 1 map unit = 1cm. And that the maximum recombination frequency is always 50%.
So:
• P1 = (R + DR) / N = 48 + 46 + 4 + 2 / 1000 = 100/1000 = 0.1
• P2 = (R + DR)/ N = 36 + 38 + 4 + 2 / 1000 = 80/1000= 0.08
Now, to calculate the recombination frequency between the two extreme genes, B and H, we can just perform addition or a sum:
P1 + P2 = Pt
0.1 + 0.08 = Pt
0.18 = Pt
The genetic distance will result from multiplying that frequency by 100 and expressing it in map units (MU). One centiMorgan (cM) equals one map unit (MU). The map unit is the distance between the pair of genes for which one of every 100 meiotic products results in a recombinant product.
• P1 = 0.1 x 100 = 10%
• P2 = 0.08 x 100 = 8%
• Pt = 0.18 x 100 = 18 %
Penguin wings and swallow wings are _____ structures.
A compound
B analogous
C vestigial
D homologous
Answer: Analagous
They are different anatomically but perform similar functions.
What is photosynthesis
Answer:
The process of a plant converting sunlight, carbon dioxide and water into food
Explanation:
Hey there!
Photosynthesis is the reaction that converts light energy to chemical energy in sugar and carbohydrates. Humans can't eat sunlight, so we eat plants. Plants convert the energy in the sunlight into chemical energy using chlorophyll. Chlorophyll is a molecule produced by plants, algae, and cyanobacteria, which aids in the conversion of light energy into chemical bonds. It is the green pigment found in the chloroplasts of higher plants. They are a part of our ecosystem, and they are lower on the food chain.
Hope this helps!
Have a great day! :)
Why do most living things not leave fossils behind?
Effectors may show stimulatory or inhibitory activity. Binding one subunit impacts binding of substrate to other subunits. ALL are correct. The enzyme can have multiple subunits. The regulatory effect is by altering conformation and interaction of subunits.
Answer: Hello your question is poorly written below is the well written question
All are characteristic of allosteric enzymes except:
a. effectors may show stimulatory or inhibitory activity
b. they have multiple subunits
c. they obey Michaels-Menten kinetics
d. the regulatory effect is by altering conformation and interation of subunits
e. binding one subunit impacts binding of substrate to other units.
Answer : They Obey Michaels-Menten kinetics ( c )
Explanation:
Allosteric enzymes are enzymes that posses the presence of an additional site and an active site. they are modified by a noncovalent binding an allosteric effector. They do not posses a kmvalue hence they do not obey Michaels-Menten kinetics
Consider the following statements:
1. Mutations always have a negative effect on an individual.
II. Mutations can have a positive effect on an individual.
III. Murations can have no effect on an individual.
IV. Mutations can have a negative effect on an individual.
Which of the statements above is/are true?
Answer: II, III, and IV
Explanation:
The answer is the second, third, and fourth.
The second one is true, because some mutations can help us adapt to our surroundings.
The third one is true, because some mutations such as some point mutations won't affect the proteins that are synthesized.
The fifth one is true, because some mutations are lethal.
What aspect of chaparral shrubs is both a part of their natural defenses and the reason many are popular in cooking?
Answer:
The answer is "aromatic oils".
Explanation:
Aromatherapy is indeed the integral therapy used only to support health and very well through the natural ingredients of plants. It's sometimes referred to as essential oil treatment. Aromatherapy top point aromatic oils in medicine to enhance body, mind, and mental fitness. This also improves fitness, both physical and emotional, that's why the Aromatic oils are also the appearance in chaparral shrubs both components of their natural protection but are popular in cooking for several reasons.
Please answer questions for the brainliest.. and stars..
Answer:
Cool air forms denser clouds, and when the clouds from the side of the mountain with cool air try to go to the side of the mountain with warm air, the clouds warm up and dissipate.
Compared to the endocrine system, the nervous system has afaster response, but the signal does not last as long.slower response, and a signal that does not last as long.faster response with a longer-lasting signal.slower response with a longer-lasting signal.
Answer:
Has a faster response, but the signal does not last as long.
Explanation:
The nervous system uses action potentials to transmit signals. Action potentials have a short duration and travel fast through neurons to inform in a fast way about different stimuli and allow rapid answers. On the other hand, the endocrine system uses chemical molecules to transmit their signals. As they travel through blood or together with other molecules, their signal is not transmitted as fast as in the nervous system. However, when they reach their destination and interact with the proper molecules, they start a series of changes that have a lasting effect in contrast with the nervous system.
Define each of the following terms:
Nitrogen Fixation
Ammonification
Nitrification
Assimilation
Denitrification
I was not paying attention please help
( also please do not plagiarize )
Explanation:
A.) Nitrogen Fixation
Nitrogen fixation is the process by
Which nitrogen is taken from its stable
Gas form (N2) in air and chances into
Other nitrogencompounds (such as ammonia,
Nitrate and nitrogen dioxide) useful of other
Chemical processes.
B.) Nitrification
The process by which bacteria is soil and water
Oxidize ammonia and ammonium ions and form
Nitrites and nitrates. Because the nitrates can be
Absorbed by more complex organisms.
C.)Assimilation
Cultural Assimilation is the process of a group's language
And/or culture coming to resemble those of another group.
D.) Denitrification
The loss of removal of nitrogen or nitrogen
Compounds specifically :reduction of nitrates
Or nitrites commonly by bacteria (as in soil) that
Usually results in the escape of nitrogen into the
Air.
Done^_^ don't forget to mark me toBrainliest
Cells must be able to perform certain functions in order to survive. Which of the following must all cells do to survive?
Hello there, mate! Let's solve together:
With the end goal for cells to endure, they require supplements as glucose and minerals in addition to oxygen.
Moreover, they need to discard byproducts. Cells additionally depend on their organelles and dissemination for endurance.
Without oxygen, minerals and the evacuation of side-effects, cells don't endure.
In the passage, the author explains that biodiversity allows species to have different choices for survival and strengthens an ecosystem by ensuring lots of options for hungry animals. Based on the evidence, what conclusion can be made
Answer:
The correct answer is - biodiversity is a good thing.
Explanation:
Biodiversity is the variety of types of life including all organisms present on earth or if related to a specific area then the ecosystem. Biodiversity helps in boosting the productivity of the ecosystem and each organism of the ecosystem plays an essential role in it.
The higher the biodiversity more chances of survival of organisms. Biodiversity provides oxygen, water and soil that helps to strengthen the ecosystem.
Tadpoles use lungs to breathe Please select the best answer from the choices provided 0 T OF
Answer: False
Explanation: Tadpoles have gills and breathe with gills.
Answer: F
Explanation: Its creepy but they have gills. Little to none have lungs.
1. Cytoplasm
2. Nucleus
3. Chloroplasts
4. Cell Wall
5. Cell membrane
Which of the components could be observed using a microscope in a prepared slide of leaf
epidermal cells but not in a prepared slide of human cheek cells?
F Components 2 and 3 only
G Components 3 and 4 only
H Components 1, 2, and 3 only
J Components 1 and 5 only
What happens to the air pressure of an air parcel as it flows up the side of a mountain?
Answer:
it reduces,
Explanation:
bcos pressure decreases with altitude or heights.
What do prokaryotes lack that are in eukaryote cells?
Answer: Prokaryotic cells differ from eukaryotic cells in that they lack any membrane-bound organelles, including a nucleus. Instead, prokaryotic cells simply have an outer plasma membrane, DNA nucleoid structure, and ribosomes.
HOPE THIS HELPS
A rolling ball travels 7.3m in 3.7s. What was the velocity of the ball?
Answer:
Velocity of rolling ball = 1.97 m/s (Approx.)
Explanation:
Given:
Distance travel by rolling ball = 7.3 meter
Time taken by rolling ball = 3.7 seconds
Find:
Velocity of rolling ball
Computation:
Velocity = Distance / Time
Velocity of rolling ball = Distance travel by rolling ball / Time taken by rolling ball
Velocity of rolling ball = 7.3 / .37
Velocity of rolling ball = 1.9729
Velocity of rolling ball = 1.97 m/s (Approx.)
How can charging occur?
The previous section of Lesson 2 discussed the process of charging an object by friction or rubbing. Friction charging is a very common method of charging an object. However, it is not the only process by which objects become charged. In this section of Lesson 2, the charging by induction method will be discussed. Induction charging is a method used to charge an object without actually touching the object to any other charged object.
A pink-flowered plant is crossed with a white-flowered plant. What is the
probability of producing a pink-flowered plant? %
A cube is measured and has all sides that are 2 cm long. What is the
VOLUME for this cube?
8
24
3
Answer:
ans is 8..
Explanation:
We know cube has 6 sides..
[tex] \sqrt{6} = 3[/tex]
Then we get that ..
Volume of a cube is s³..
=> side =2cm
=> V = 2³
= 8
A graduated cylinder containing 40 mL of water has a total mass of 60 g. A solid object carefully lowered into the graduated cylinder. The level of the water rises to 70 mL. The total mass of the cylinder, water and object is now 95 g what is the mass? volume? and density
Answer:
The correct answer is -
A) 35 g
B)30 mL
C)1.66666666666667g/ml3
Explanation:
Given:
mass of graduated cylinder containing 40 mL = 60 g
volume of water = 40 ml
increase in the level of water = 70 ml
increase in mass = 95
Solution:
A) mass of object -
increased mass - initial mass
90 - 60 = 35 g
B) volume of object
increased volume - initial volume
70 - 40 = 30 mL
C) density d=m/v
d=35/30
d=1.66666666666667
When using a knife to cut a
tomato What are three
things you need to do to
carry out this task safely?
Answer: keep your thumb on the side of the knife, cut on a cutting board, and use a sharp knife.
5.2. Suggest how ecologists used the data in the graphs to calculate the total volume
of water used by a tree in 24 hours.
Answer:
When a long-term environmental change occurs, certain individuals in a population will be better adapted for the new environment than others. These individuals will be more likely to survive and pass on their traits to their offspring. Over many generations, these favorable adaptations build up in a population. This may lead to speciation, which is the development of a new species.When a long-term environmental change occurs, certain individuals in a population will be better adapted for the new environment than others. These individuals will be more likely to survive and pass on their traits to their offspring. Over many generations, these favorable adaptations build up in a population. This may lead to speciation, which is the development of a new species.When a long-term environmental change occurs, certain individuals in a population will be better adapted for the new environment than others. These individuals will be more likely to survive and pass on their traits to their offspring. Over many generations, these favorable adaptations build up in a population. This may lead to speciation, which is the development of a new species.When a long-term environmental change occurs, certain individuals in a population will be better adapted for the new environment than others. These individuals will be more likely to survive and pass on their traits to their offspring. Over many generations, these favorable adaptations build up in a population. This may lead to speciation, which is the development of a new species.When a long-term environmental change occurs, certain individuals in a population will be better adapted for the new environment than others. These individuals will be more likely to survive and pass on their traits to their offspring. Over many generations, these favorable adaptations build up in a population. This may lead to speciation, which is the development of a new species.When a long-term environmental change occurs, certain individuals in a population will be better adapted for the new environment than others. These individuals will be more likely to survive and pass on their traits to their offspring. Over many generations, these favorable adaptations build up in a population. This may lead to speciation, which is the development of a new species.
Explanation:
Which of the following
structures is a rigid
barrier found outside
of the cell membrane
in the plant cell?
Answer: Cell wall
Explanation:
Explain how a single fertilized egg can develop into a multicellular organism.
Answer:
The fertilized egg goes through mitosis to create many identical copies of the original cell then those cells will differentiate into specialized cells of different tissues.
Explanation:
using Punnett Squares, determine the percentage of offspring which would be heterozygous from the following cross: BB x bb
A. 25%
B. 50%
C. 100%
Lets take that the father has black hair and the mother has brown hair so -->
Male × Female
Genotypes: BB × bb
Phenotypes: Black brown
Gametes: B _100%_ b_100%_
After reviewing the photo
we have
Genotypes
B: 50% (1/2)
b: 50% (1/2)
Phenotypes
Black: 50% (1/2)
brown: 50% (1/2)
Using Punnett Squares, the percentage of offspring would be heterozygous from the following cross: BB x bb is 25%. Therefore, option (A) is correct.
What are the features of punnett square method?The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment. It is named after Reginald C. Punnett, who devised the approach in 1905.
The Punnett square is a table in which all of the possible outcomes for a genetic cross between two individuals with known genotypes are given. In its simplest form, the Punnett square consists of a square divided into four quadrants.
A Punnett Square is a helpful tool that helps to predict the variations and probabilities that can come from cross breeding. This includes predicting crossing plants, animals, even humans with each other.
Learn more about punnett square:
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i don't like school that's why I'm here
Answer:
brainly is like school though?? you have to answer people so i d k
Explanation:
Answer:
Same id rather fail than do school
Explanation:
Also how are u? <3
I hope you have a good day