Answers
Answer:
Skates have whip-like and flat pectoral fins.
Explanation:
The tails of Ray and Skates are different from other fishes because Ray and Skates have whip-like tails that helps their kite shaped body in movement from one place to another. Both Skates and rays have pectoral fins that are flat and expanded, as well as fused to the head of both organism while on the other hand, fishes have different shape of pectoral fins that are not flat which helps to change the direction of the fish during its movement..
Related Questions
Who was Louis Pasteur?
Answers
Answer:
Louis Pasteur was a French chemist and microbiologist renowned for his discoveries of the principles of vaccination, microbial fermentation, and pasteurization.
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Which of the following identifies types of plants in which pollination occurs?
Answers
Explanation:
For fertilization to occur in angiosperms, pollen has to be transferred to the stigma of a flower: a process known as pollination. Gymnosperm pollination involves the transfer of pollen from a male cone to a female cone.
Answer: The correct answer is flowering plants
Explanation: This answer has been confirmed correct.
Flowering plants reproduce through pollination.
9. If you conducted the analysis portion of Experiment 2, you calculated
the rate at which the percentage of fish with a complete pelvis
decreased in that ancient lake. Do you think the same rate of change
would apply to modern fish populations?
A. Probably not, since the environment has changed so much in the 10
million years since that ancient lake existed.
B. Although we did not measure this directly, it is possible that the same
rate of change observed in the fossil record applies to modern
populations.
C. The fossil record analyzed in Experiment 2 only spans 15,000 years,
so we cannot draw any conclusions to modern populations, which
evolved over a much longer period of time, at least 10,000 years.
D. The rate of evolution of a particular phenotype cannot be calculated
from the fossil record because the fossil record is always fragmentary.
Answers
Answer: Although we did not measure this directly, it is possible that the same rate of change observed in the fossil record applies to modern populations.
Explanation:
Hi. You didn't give the experiment and I searched online but couldn't find the experiment but through further researches, I got to know that the correct option is B "Although we did not measure this directly, it is possible that the same rate of change observed in the fossil record applies to modern population"
Therefore, the correct option is B.
what animal is the descendant of Gilmoreosaurus
please help me
Answers
Explanation: I sound weird but that’s what came up
Do sex-linked traits that originate from mutated genes found on X chromosome affect one sex more than the other? why/why not
Answers
21. In 1960, an invasive species of fish was introduced into the stable ecosystem of a river.
Since then, the population of a native fish species has declined. This situation is an example of
an
1) Ecosystem that has recovered
2) Ecosystem altered through the activities of humans.
3) Environmental impact caused by physical factors
4) Ecological niche without competition
Answers
Organ transplantation, stem cell research, and cloning, are all examples of biotechnology.
O False
O True
Answers
Organ transplantation, stem cell research, and cloning, are all examples of biotechnology.
Use the following information to answer the questions below. Skin color in a certain species of fish is inherited via a single gene with four different alleles. One fish of this type has alleles 1 and 3 (S1S3) and its mate has alleles 2 and 4 (S2S4). If each allele confers a unit of color darkness such that S1 has one unit, S2 has two units, and so on, then what proportion of their offspring would be expected to have five units of color
Answers
Answer:
1/2 = 50% of the progeny is expected to have 5 units of color → S1S4 + S2S3
Explanation:
Available data:
Single gene with four different alleles → S1, S2, S3, S4Each allele confers a unit of color darknessS1 one unitS2 two unitsS3 three unitsS4 four unitsCross:
Parentals) S1S3 x S2S4
Gametes) S1 S3 S2 S4
F1) 1/4 = 25% of the progeny is expected to be S1S2 → 3 units
1/4 = 25% of the progeny is expected to be S1S4 → 5 units
1/4 = 25% of the progeny is expected to be S2S3 → 5 units
1/4 = 25% of the progeny is expected to be S3S4 → 7 units
1/2 = 50% of the progeny is expected to have 5 units of color → 1/4 = 25% S1S4 + 1/4 = 25% S2S3
Most of the stars on the HR diagram are classified as which type of star?
Answers
Answer:
My answer is MAIN SEQUENCE#CARRYONLEARNING
I am confused, could you please help. I’d appreciate it.
Answers
Answer:
I needed to use a water plant because it is most easily seen in water plants with the production of oxygen by photosynthesis.
You need to leave the apparatus in a light place because green plants absorb light into their leaves and convert it to energy by photosynthesis.
Which species has the most chromosomes?
A.
cats
B.
dogs
C.
crayfish
D.
humans
Answers
Answer:
D. cray fish
Explanation:
humans have46 chromosomes
dogs have78
cats have 39
there are many types of cray fish
theses fishes range from 176 to 200 chromosome
Si contamos con mas tecnologia ahora,por que creen que no es posible regresar de Marte si lo es regresar de la Luna
Answers
Answer:
Debido a la gravedad.
Explicación:
No es posible regresar de Marte si es posible regresar de la Luna porque la masa es un planeta que tiene una alta fuerza de atracción gravitacional en comparación con la luna que tiene una fuerza gravitacional muy baja. La luna es una estrella que tiene una fuerza gravitacional baja mientras que, por otro lado, Marte es un planeta y más grande que la luna, por lo que tiene más fuerza de atracción gravitacional en comparación con la luna y esa es la razón por la que no podemos regresar de la luna fácilmente desde el Marte en comparación con la luna.
What do checkpoints do in the cell cycle?
Answers
Answer: Checkpoints in the cell cycle A checkpoint is a moment in the eukaryotic cell cycle where the cell considers internal and external inputs before deciding whether or not to divide. There are other checkpoints, but the following are the three most important: At the G/S changeover, there is a G checkpoint.
Explanation:
knowledge!
During a baseball game, a hitter strikes the ball with a bat. When this happens, the ball and the bat exert a
force on each other. Why does the ball accelerate away from the bat more than the bat accelerates away from
the ball?
Answers
Answer:
The ball has greater velocity before the collision, so the force affects the ball more than it affects the bat. The ball has less mass, so the equal force on the ball and the bat causes greater acceleration of the ball. The bat exerts more force than the ball because the batter is exerting a force on the bat as it hits the ball
Explanation: can i get branliest???
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Answers
According to Friedman and Roenman, high levels of stress are linked to __________.
cancer
Alzheimer's disease
emphysema
coronary disease
Answers
According to Friedman and Roenman study, high levels of stress are linked to Coronary heart diseases (CHD). Thus, the correct option is D.
What was Friedman and Roenman theory?
Friedman and Rosenman in the year 1976 conduced a research to show that people with type A personality run a higher risk of heart disease and high blood pressure than type Bs. Type A personality is ambitious, competitive, and aggressive while type B personalities may be patient, flexible, and laid-back.
Through their study, they remarked that the primary risk factors of Coronary Heart diseases (CHD), i.e. hypertension, smoking, and elevated serum cholesterol were found at a higher level in the people with personality A than that of personality B.
Therefore, the correct option is D.
Learn more about Stress here:
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why did people disagree with carbon taxing ?
Answers
What is the dry bulb temperature
Answers
Answer:
i think it 1 decree
Explanation:1
Answer:
Hey mate........
Explanation:
This is ur answer......
The dry-bulb temperature (DBT) is the temperature of air measured by a thermometer freely exposed to the air, but shielded from radiation and moisture. DBT is the temperature that is usually thought of as air temperature, and it is the true thermodynamic temperature.
Hope it helps!
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The main adaptation that plants had to develop to live on land instead of
water was the ability to --
1. disperse seeds
2. produce fruit
3. photosynthesize
4. conserve water
(will give brainliest for correct answer. )
Answers
Answer:
The main adaptation that plants had to develop to live on land instead of water was the ability to disperse seeds.
Explanation:
1.disperse seeds is the answer.
ANSWER PLEASE !!
When is carbon NOT released back into the atmosphere?
A. when organisms die
B. when sunlight is absorbed in chlorophyll
C. volcanoes erupt
D. fossil fuels are burned
Answers
Answer: B. when sunlight is absorbed in chlorophyll
Explanation:
Which population eats kelp the most?
Answers
Answer:
bristle worms
Explanation:
In kelp forests, the most commonly found invertebrates are bristle worms, scud, prawn, snails, and brittle stars. These animals feed on the holdfasts that keep kelp anchored to the bottom of the ocean and algae that are abundant in kelp forests. Sea urchins will often completely remove kelp plants by eating through their holdfasts. Other invertebrates found in kelp forests are sea stars, anemones, crabs, and jellyfish.
Hope this helps!
Which factor does NOT provide evidence of common ancestry?
a.) DNA
b.) organism size
c.) stages of early development
d.) homologous structures
Answers
The size of the organism does not provide any evidence of common ancestry. So, the correct option is B.
What do you mean by Common ancestors?Common ancestors may be defined as those characteristics of different organisms that have two or more descendants in common.
The nature and morphology of the DNA, stages, and properties of the early development of organisms, and homologous structures provide significant evidence of common ancestry between the organisms of different species.
Therefore, the correct option for this question is B.
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CRITICAL THINKING 1. Name three things you could do each day to pro- duce less waste. 2. Explain how buying certain products can help reduce solid waste. 5. Analyzing Methods What are the advantages and disadvantages to producing degradable plastics? 6. Demonstrating Reasoned Judgement Read the Case Study in this section and decide which type of bag you would choose the next time you go shop- ping. Explain why you made this choice. What are other uses of the bag you chose? READING SKILLS 3. Describe the steps it takes to recycle a piece of plastic 4. List two benefits of composting.
Answers
-Stop talking unless you have something to say
-Don’t hold grudges
The sugar molecule that stores the energy is called what?A.Cellular RespirationB.Carbon DioxideC.PhotosynthesisD.Glucose
Answers
Answer:
glucose
Explanation:
Glucose is the sugar molecule that stores the energy.
What is cellular respiration?It is a catabolic process.It provides energy by oxidizing glucose.What is photosynthesis?It is an anabolic process.It is the process by which green parts of plants synthesize carbohydrate.They require carbon dioxide, water, sunlight, and chlorophyll.Oxygen is released as a by-product.Carbon dioxide:Carbon-dioxide is a gas.It is one of the raw material of photosynthesis.It is released as a product of cellular respiration.To learn more about energy, glucose, photosynthesis, and carbon dioxide here,
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the four most common chemical elements found in living matter are
1,C,H,O,P
2,C,H,O,N
3,C,H,N,P
4,C,H,O,S
5,C,H,O,Ca
Answers
Explanation:
In all living system we can always find basic elements carbon, oxygen, nitrogen and hydrogen, carbon is the basic building unit contained in living matter. The percentage of carbon in the mass of living matter is 19.0% oxygen and hydrogen are present in almost all organic compound which creates living organisms.
How can topsoll be replaced in an area that has been strip-mined?
O A) Vegetation will quickly form topsoil.
OB) Stockpile topsoil from the area before strip mining.
O C) Use mine waste for topsoil.
O D) Use crushed rock from the mine.
Answers
Answer:
I'm sure you meant to type "topsoil" but the answer to the question is B
Can you find out what the oldest evidence of multi-celled life is? Tell me about it.
Answers
Answer: the oldest evidence of multi-celled life is about 570 million years old, it was found in the west african state of gabon, thats all i know unfortunately ;/
Explanation:
Choose the BEST EVIDENCE to support the CLAIM: Crater lake was formed when a volcanic cone collapsed and filled with water.
Answers
Option A-Sometimes the top of a volcano is blown off or collapses during an eruption, leaving a depression called caldera which filled with rainwater.
can anyone help me? I’m stuck
Answers
Answer:
give me a thanks first and then ill tell the answer
Explanation:
Help lol!!!!!!!!!!!!
Answers
Answer: Beer
Explanation:
It is not able to consume anything. It is a non living item in comparison to the other options
Have a lovely day
Answer:
Beer (D)
Explanation:
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