Answer:
In binary fission the organism divides itself into two through the nucleus and in mitosis, the parent cell divides into two daughter cells
Scientists have discovered a fossil skeleton of a whale-like creature that lived in the early Eocene epoch. The skeleton shows an organism with large fore and hind limbs with distinct toes. Fossil skeletons of closely related species from later periods show organisms lacking hind limbs. Which conclusion does this observation best support?
A. Ancestors of whales may once have been able to walk.
B.Ancestors of whales had fewer bones than modern whales.
C. Whales and their ancestors have always been ocean dwellers.
D. Whales and their ancestors have always been the largest living
Answer:
A. Ancestors of whales may once have been able to walk.
Explanation:
Which of the following is required in order for homeostasis to be maintained?
Select one:
An organism should have an internal environment that differs from its external environment.
There should be a constant input of stimuli to receptors so that internal conditions remain constant.
Passage of materials across cell membranes need to occur at a continuously rapid rate.
An organism should be able to move to a new environment when conditions change.
Answer: c
Explanation: all cell membranes need to maintain function
what is a flexible double-layered sheet that makes up the cell membrane and forms a barrier between the cell and its surroundings
Answer:
Term Lipid Bilayer
Explanation:
8. Most importantly, adaptations must improve a
species' ability to:
a. Eat
b. Escape threats
c. Get oxygen and water
d. Reproduce
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Some barnacles derive nutrients from living on the flesh of whales. This does not cause significant pain to the whales. Which type of symbiotic relationship do these organisms have?
Commensalism
Mutualism
Predation
parasitism
Light energy is changed to cell energy in stage 1 of photosynthesis. True or false
Answer:
dang i wish i was smart lol
importance of bacteria
Explanation:
Bacteria are economically important as these microorganisms are used by humans for many purposes. The beneficial uses of bacteria include the production of traditional goods such as yogurt, cheese, and vinegar. Microbes are also important in agriculture for the compost and fertilizer production.
Which statement BEST describes the relationship between MPF and the cell cycle?
Answer:
Cyclin blinds with an enzyme to produce MPF cyclin and as its concentration rises, it promotes mitosis.
Which phrase best describes what a soil horizon is? Question 3 options: the bottom layer of a soil profile each layer of a soil profile the place where two soil profiles meet the place where a soil profile meets bedrock
Answer:
It is answer C
Explanation:
The person in front is correct I took they quiz
HELP PLEASE IVE BEEN STUCK ON THIS FOR 30 MINUTES
Answer:
13 - b]
14 - c]
15 - a]
16 - d]
A certain substance is used for insulation by animals in cold climates, as well as for long term energy storage. A similar molecule makes up the cell walls of animals. This must be a:
Answer:
This question lacks options, however, it can be answered. The answer is LIPIDS
Explanation:
Lipids are one of the four biological molecules found in living systems. They are found performing variety of functions in living organisms. Lipids include the following: fats, phospholipids, steroids, oils, waxes etc. Some of the function they perform as mentioned in this question are:
- Lipids such as fats are used for long term energy storage.
- In cold climates, lipids such as fats also provides insulation in animals, helping their bodies to conserve heat.
- Lipids such as phospholipids encompass the cell membrane of animals, where they perform the role of selective permeability.
Will mark brainliest and give 18 points
Answer:
1.lunar 2.solar 3.earth 4.the moon 5.sun
What conditions are necessary for rocks to melt?
Answer:
In explanation.
Explanation:
The rock is pulled down by movements in the earth's crust and gets hotter and hotter as it goes deeper. It takes temperatures between 600 and 1,300 degrees Celsius (1,100 and 2,400 degrees Fahrenheit) to melt a rock, turning it into a substance called magma (molten rock).
The rock can be melted when high pressure and high temperature are applied to it, and due to the compression relaxation, the rock melts. The different types of rocks need different temperatures.
What is the effect of temperature on different substances?Temperature plays an important roles in different substances, such as high and low temperatures, each with its own set of tasks. The high temperature can melt the solid substance into a liquid, and further heating converts the liquid into gas. Because of the high pressure and temperature in the earth's core, the rock is in a molten state, but when it comes out of the earth's core, after solidifying, it converts into solid rock. The low temperature converts the liquid into a solid, and food preservation is carried out by this process.
Hence, the rock can be melted when high pressure and high temperature are applied to it, and due to the compression relaxation, the rock melts.
Learn more about the temperature here.
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Transcribe the following DNA Strand:
AAT GGC TCA
Answer:
UUA CCG AGU
Explanation:
Hello There!
Remember when transcribing these are the complementary pairs
adenine with uracil
thymine with adenine
guanine with cytosine
cytosine with guanine
so after the dna strand is transcribed it would look like this
UUA CCG AGU
An algal bloom in a water system is most likely caused by?
What is a DNA 2 paragraph pls :))))))))))
dna is something like blood that everyone has. everyones dna is different such as their hair and eye color.
Explanation:
Answer:
hey friend ....
hope it helped you ^_^
T-lymphocytes are created in the bone marrow and then developed in the
spleen.
adenoids.
thymus.
tonsils.
Answer: I would say it is in thymus.
Answer:
It is thymus, I just did the question and got it right.
Having Freckles (F) is dominant over not having Freckles (f). If a person that is FF has children with a person that is FF, what is the probability of their children will have Freckle
a
0%
b
25%
c
50%
d
100%
Answer:
D
Explanation:
Because there isn't a non-dominent gene.
Using the letter "T" and "t" with Tall height being dominant over short height. A heterozygous man for height marries a heterozygous woman for height. What is the correct F1 phenotypes for this cross?
75% would be tall, 25% would be short
genotypes: TT,Tt,tt
Explanation:
During an experiment in Science class, Jorge notices that the liquid in the
thermometer moved up when he added calcium chloride (CaCl2) to a baking soda
solution. What type of energy transformation is demonstrated in the experiment?
Chemical to kinetic
Chemical to thermal
Thermal to chemical
Thermal to kinetic
Answer:
Chemical to thermal.
Explanation:
Chemical energy (the baking soda reacting to the calcium chloride) to thermal energy (the reaction causing the temperature to rise.
The evidence of Evolution are....
Answer:
this is the answer hope it helps
Answer:
traits from previous organisms showing up in offspring.
Explanation:
Animals passed on certain traits and physical features to their offspring. The strongest evidence of evolution is the similarity in DNA.
he bodies of wild-type fruit flies are colored by dark pigments, but an X-linked recessive mutation can confer a yellow, unpigmented phenotype. However, feeding silver salts to larvae results in adult flies that phenocopy the yellow phenotype. You are conducting epistasis experiments in fruit flies to understand the genetics of pigmentation. A rival research lab sends you a vial of yellow-bodied flies for your experiments. How can you tell whether these flies are mutants instead of phenocopies
Answer:
We could feed them with another type of food free of silver salts.
Explanation:
When talking about a phenocopy, we are referring to individuals who genotypically should be expressing a determined phenotype, but due to environmental influence, they express another phenotype. This is a non-inheritable phenotype, so it is not considered a mutation.
If we grow thy flies feeding them another type of food that does not include silver salts, and let them mate and reproduce, they will express the real phenotype, because they will not be influenced by the food. In the following generation, there will be dark individuals carrying the dominant allele, and yellow individuals, with the recessive genotype.
If sea lamprey increase in population and decrease the native fish population, the sea lamprey population will eventually collapse (decrease rapidly). This would be an example of _______ feedback. 1. Positive 2. Negative 3. Neutral 4. None of the above
Answer:
Negative feedback
Explanation:
Feedback mechanism is activated due to the change in the system that result into an output.
A negative feedback mechanism is a pathway that is caused by deviation in the output that result in a change in output direction which is usually opposite to the initial deviation.
The process of feeding of sea lamprey on the fish started as a normal pathway the deviation started when they could not feed on the fish again as a result of reduced population and they start dying of hunger. It is a negative feedback
3. Which biomolecule is properly matched to its monomer?
A nucleic acid : amino acid
B polypeptide : 1 glycerol + 3 fatty acids
Clipid : nucleotide
D carbohydrate : monosaccharide
A
Answer:
D
Explanation:
Monosaccharides are simple units of carbohydrates
Dimples are dominant; no dimples are recessive. Mr. Dowling is heterozygous for dimples, and Mrs. Dowling is also heterozygous for dimples. Whatcare the possibilities of their offspring?
Answer:
There offspring will have dimples
Explanation:
If wrong I am sorry.
Which of the following facts about genes is incorrect?
A.A gene can code for a specific protein
B.A gene can exist in alternate forms called alleles
C.A gene undergoes crossing over during meiosis and can switch chromsomes
D.A gene that is very similar in sequence in a human and in a bacterium is probably a recent mutation.
E.If parents do not express a gene but their child does, that gene is probably recessive.
16. Explain how the following affect the rate of enzyme activity. a.Substrate Concentration:
b. pH:
c. Temperature:
Answer:
pH: If it's to much on either the alkaine or the acid side the enzymes will vary
Explanation:
Lea el párrafo que aparece abajo y complete con las siguientes palabras que faltan: hereditaria; cromatina; equitativa; cromátidas; cromosomas; ADN; genes; duplica; brazos y centrómero
Answer:
Hereditario se refiere al proceso por el cual las características se transmiten genéticamente de padres a hijos.
Explicación:
Hereditario se refiere al proceso por el cual las características se transmiten genéticamente de padres a hijos. La cromatina consta de ADN y proteína que se replica antes de la división celular para formar duplicados de ADN que se distribuyen equitativamente entre las células hijas. Las cromátidas se refieren a las dos mitades idénticas de un cromosoma duplicado replicado y el centrómero es la secuencia de ADN de un cromosoma que une dos cromátidas hermanas entre sí y cada cromátida tiene cuatro brazos.
Which of the following substances is/are involved in
oxidative phosphorylation of cellular respiration?
Answer:
the answer will be
ADP
Oxygen
ATP
so its all the above
Explanation:
The substances involved in oxidative phosphorylation are the electron transport chain, oxygen, and ATP synthase.
The substances involved in oxidative phosphorylation of cellular respiration are:
Electron transport chain: It consists of a series of protein complexes located in the inner mitochondrial membrane. Electrons from carrier molecules, such as NADH and FADH2, are passed along the electron transport chain, resulting in the generation of a proton gradient.
Oxygen (O2): Oxygen acts as the final electron acceptor at the end of the electron transport chain. It combines with hydrogen ions to form water (H2O).
ATP synthase: This enzyme is located in the inner mitochondrial membrane and utilizes the energy from the proton gradient to generate ATP through the process of chemiosmosis.
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3 facts or more about the moon.
3 facts or more about planets.
Answer:
MOON
The Moon is Earth's only permanent natural satellite. It is the fifth-largest natural satellite in the Solar System, and the largest among planetary satellites relative to the size of the planet that it orbits.
The Moon is the second-densest satellite.
The Moon always shows Earth the same face.
PLANETS
A planet is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit.