what physical transformations occurred to allow for the fully aquatic life modern whales have today?

Answers

Answer 1

Answer:

Over time whale's descendants spent more and more time in the water and their bodies became adapted for swimming. Their front legs became flippers. A thick layer of fat called blubber replaced their fur coats to keep them warm and streamlined.

Explanation:


Related Questions

Energy cannot be produced by fungi and heterotrophic organisms

Answers

Answer:

No they cannot

Explanation:

Fungi, which are also heterotrophs as well as other heterotrophic organisms cannot produce their own energy for their own function because they do no make their own food. That is they do not have chloroplasts and therefore obtain energy from autotrophs ( organisms that make their own food for energy)

describe at least one part of the experiment prodcedure you though was essential for getting good results did you find

Answers

Answer:

i found that if you mix glue cornstarch and borax you can make lava i think

Explanation:

Which part of a plant are used to attract birds and insects called

Answers

Answer:

Nectar

Explanation:

The part of a plant that is used to attract birds and insects is called Petals. Sometimes, nectar is also used for the same function.

What do you mean by Plant?

A Plant may be defined as a living thing that grows in the earth and has a stem, leaves, and roots. They are the autotrophs that synthesize their own food through the process of the photosynthesis.

Petals are multicolored leaf-like structures that encircle the male and female reproductive organs of the plant. Because of its colorful nature, it attracts a variety of birds and insects.

Nectar is a sweet substance that attracts insects or birds for the purpose of pollinating the flower.

Therefore, the part of a plant that is used to attract birds and insects is called the Petals. Sometimes, nectar is also used for the same function.

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true or false the lab partner working on the computer should put the bacterial filter and mouthpiece onto the respiratory transducer and then hand it to the subject

Answers

Answer:

No!

Explanation:

Safety precautions must be taken with this procedure. Such as, protective gear, bacteria should not be mixed with other substances!

The process in which a gas turns back into a liquid is called __________. What word completes the sentencA helium balloon's temperature is raised by 1°C. Will this cause its molecules to move faster or slower?e?

Answers

Answer:

the process is called condensation.

the molecules will move faster

Why is it important to be aware of Wisconsin’s karst features

Answers

Answer:

The cracks and crevasses in karst act as direct conduits for pollutants to enter groundwater, wells, springs, and streams. If you've got a sinkhole, you've got karst. Protect your groundwater and wells by being careful about what you spread in these areas.

What are the different 4 hardwood groups according to their classification?

Answers

Answer:

BAMBOO. While it's not exactly hardwood, most people consider it as such. ...

MAPLE. Maple flooring is one of the most popular hardwood flooring choices. ...

ROSEWOOD. ...

WALNUT. ...

CHERRY. ...

BRAZILIAN CHERRY. ...

PINE. ...

HICKORY.

Explanation:

BAMBOO. While it's not exactly hardwood, most people consider it as such. ...

MAPLE. Maple flooring is one of the most popular hardwood flooring choices. ...

ROSEWOOD. ...

WALNUT. ...

CHERRY. ...

BRAZILIAN CHERRY. ...

PINE. ...

HICKORY.

“Which is one function of a protein marcomolecule?”
A. Insulating organs of the body
B. Carrying oxygen in the blood
C. Making up the code for living things
D. Providing waxy coating on leaves​

Answers

Answer:

Explanation:
i believe the answer is B
Carrying oxygen in the blood

Hope this helps:)

What are the major functions of the circulatory system.

Answers

Answer:

The major functions of the circulatory system is it delievers oxygen and nutrients to cells and takes away wastes.

Explanation:

Hope this helps! :)

A 30.0 x 10^8 L sample of nitrogen inside a rigid, metal container at 19.50 °C is placed inside an oven whose temperature is 78.50 °C. The pressure inside the container at 19.50 °C was at 864.5 psi. What is the pressure of the nitrogen after its temperature is increased?

Answers

Answer:

Answer:

3.31 atm.

Explanation:

Gay-Lussac's law states that for a given mass and constant volume of an ideal gas, the pressure exerted on the sides of its container is directly proportional to its absolute temperature.

∵ P α T.

∴ P₁T₂ = P₂T₁.

P₁ = 3.00 atm, T₁ = 20.0 °C + 273.15 = 293.15 K.

P₂ = ??? atm, T₂ = 50.0 °C + 273.15 = 323.15 K.

∴ P₂ = (P₁T₂)/T₁ = (3.00 atm)( 323.15 K)/(293.15 K) = 3.307 atm ≅ 3.31 atm.

What genotypes would you expect in future offspring from this marriage? select all that apply. ii i a i i b i i a i a i b i b i a i b

Answers

The genotyoe of the offspring can be obtained from the genotype of  the parents using a punnet square.

What is genotype?

The term genotype refers to the sum total of the genes that an organism receieves from its parents. We have to note that genes often occur in pairs called alleles. The combination of gene alleles controls the expressed trait in the organism.

This question is incomplete. However, we do know that the genotyoe of the offspring can be obtained from the genotype of  the parents using a punnet square.

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Which mutation would allow the cell to divide when it should not and could possibly lead to cancer?.

Answers

Answer:

meiosis

mitosis

c cc ell division

Who was the first to really study genetics and nicknamed the father of genetics?.

Answers

Answer:

Gregor Mendel

Explanation:

Hope this helps:)....if not then sorry for wasting you time and may God bless you:)

How to determine the chemical reaction of cellular respiration?

Answers

Answer:

C6 H12 O6+6O2-----6CO2+6H2O+ ATP

Chemical reactions of cellular respiration may be determined by where the respiration process undergoes. This is because cellular respiration may be of two types aerobic (in mitochondria), and anaerobic (in yeast and muscle cells).

What do you mean by Cellular respiration?

Cellular respiration may be defined as the strategy by which living organisms incorporate oxygen with glucose molecules, and discard as waste products, carbon dioxide, and water, apart from energy.

The general chemical reaction of the cellular respiration may be determined as :

[tex]C_6H_1_2O_6 +[/tex][tex]0_2[/tex] → [tex]CO_2 + H_2O +[/tex] ATP. (Aerobic cellular respiration).

Glucose → Pyruvate → Lactate + ATP (Anaerobic cellular respiration).

Therefore, chemical reactions of cellular respiration may be determined by where the respiration process undergoes.

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Rocks that have large visible minerals are described as having a.

Answers

Sedimentary rocks, I think

What are some of the different areas of the body that may give an indication of age? ​

Answers

Answer:

Aging changes occur in all of the body's cells, tissues, and organs, and these changes affect the functioning of all body systems.

Explanation:

Answer: Head, Chest, Brain (

Explanation:

(The brain doesn't stop growing until the age of 25)

(People grow new "parts" of the body as they get older, and some have to wait until a certain age for those "parts" to grow 'in')

The head doesn't stop growing until age 5. (not a lot in age but you can tell the difference between a newborn and a child)

Starlings produce an average of five eggs in each clutch. If there are more than five, the parents cannot adequately feed the young. If there are fewer than five, predators may destroy the entire clutch. This is an example of.

Answers

The the behavior observed in starlings where they produce an average of five eggs in each clutch is an example of behavioral adaptation.

What are adaptation?

Adaptation refers to the special features or structures possessed by organisms which enhances their chances of survival in their environment.

The adaptation can either be behavioral or structural.

In the case of the starlings, due to environmental pressures, they have learned to lay an average of five eggs.

Therefore, the behavior observed in starlings is an example of behavioral adaptation.

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What are the different systems of classification of organisms

Answers

Answer:

kingdom, phylum, class, order, family, genus, and species.

Explanation:

kingdom, phylum, class, order, family, genus, and species.

Classification is a grouping of individuals according to their similarities and differences. It is used to group organisms according to ranks of similar characteristics and evolutionary basis.

What are the levels of classification?

Classification system is divided into various levels in order to rank the organisms.

It has following levels:

Kingdom: It is the highest level of classification. There are a total of five kingdoms.Phylum: It is classified on the basis of phenetics and phylogenetics.Class: each phylum can contain multiple class.Family: it is group of genera having similar traits.Genus: it helps to determine species of the organisms.Species: it is the lowest rank in this category. It is group of organisms having similar characteristics.

Thus, kingdom, phylum, class, family, genus, species are the classification system of organisms.

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Which of the following is the best description of bacterial transformation?
Group of answer choices
A. Introducing new genes into a bacteria cell that the bacteria cell then uses to make proteins
B. Changing a bacteria cell into a different type of cell, such as a virus or protein
C. Providing bacteria cells with optimum conditions to increase the reproduction of the cell
D. Removing genes from a bacteria cell’s chromosome so that the bacteria cell no longer makes those proteins

Answers

Answer:

A

Explanation:

Imagine that this cleared area was made for a farm that grows only one type of crop. What kinds of outcomes might you predict for this new area of low biodiversity?
A forest with a large spot that was cut down.

Answers

A forest with a large spot that was cut down will represent a loss of biodiversity that might be irreversible.

What is biodiversity?

Biodiversity refers to all genetic and phenotypic diversity that is present in a given ecosystem.

Biodiversity is fundamental for maintaining the internal equilibrium (homeostasis) of the whole ecosystem.

The generation of a short patch in the forest may represent the loss of biodiversity that may be reestablished by the surrounding environment.

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What are the main constituents of the jovian planets?.

Answers

Answer:

Unlike the terrestrial planets that make up our inner solar system — Mercury, Venus, Earth, and Mars — the Jovian planets do not have solid surfaces. Instead, they are composed primarily of hydrogen and helium, with traces of methane, ammonia, water, and other gases in their atmospheres.

I think it will help you.

Which of these organisms has a sac body plan, and radially symmetry?

Answers

Answer:

?

Explanation:

I'm gonna need a picture or some options because you question makes no sense

The organisms like Jellyfish, Corals, and sea anemones have a sac body plan, and radially symmetry.

What do you mean by Radial symmetry?

Radial symmetry may be defined as the symmetry in which the sides indicate correspondence or regularity of the parts around a central axis.

Apart from the above organisms, the member of the phylum Coelenterate which contains approximately 10,000 species also possesses the same body plan.

Therefore, the organisms like Jellyfish, Corals, and sea anemones have a sac body plan, and radially symmetry.

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A male chicken, at least eight months of age, is a.

Answers

Answer:

Boiler

At 6 to 9 months, a chicken becomes a boiler. They are not actually boilers, however, they have that classification name at that point in their lives.

Are there any countries where men life longer than women

Answers

Countries where men’s life expectancy is longer than women’s:

- Nepal

- Papua-New Guinea

- Afghanistan

Whould we want the human curve to look like the 1st bacteria population

Answers

Answer: No, because the bacterial population plummets once their resources are exhausted

If a srna is bound to the ribosome binding sequence of a mrna coding for an enzyme in a bacteria, what effect will this have on the amount of enzyme in this cell?.

Answers

If an sRNA is bound to the ribosome binding sequence of an mRNA coding for an enzyme in a bacteria, it will reduce the amount of enzyme.

What is an sRNA?

A small RNA (sRNA) is a short sequence that binds to target mRNAs by base complementarity and thus reduces gene expression.

These sequences (sRNAs) can efficiently block prokaryotic translation in order to reduce the amount of protein.

The sRNAs have fundamental regulatory roles both in bacterial translation and protein production.

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The monarch butterfly population has declined due to a scarcity of:.

Answers

Answer:

The monarch butterfly population has declined due to a scarcity of milkweed

100 Points!!!! PLEASE HELP WITH THIS PENNFOSTER QUESTION. Pls answer by 11:59pm March 31

Answers

#1

Cell contains half no of chromosomes means if main cell be n then this cell contain n/2

Its

Haploid

#2

Apoptosis

#3

These processes occur in one region that's

nucleus

#4

Parthenogenesis

#5

n turns 2n

So Diploid

Which of these best matches an object in space with its characteristic?

A ganymede → orbits the sun
B inner planet → gaseous in composition
C outer planet → many moons
D meteorite → comet which hits Earth's surface

Answers

In this question we will match an object in space with its characteristic

A ganymede → orbits jupiter

B inner planet → many moons

C outer planetgaseous in composition

D meteorite → comet that hits the Earth's surface

What are the characteristics of Ganymede?

Ganymede is the largest moon of Jupiter and is the largest in our solar system.

What is an inner planet?

The inner planets, closest to the Sun, are solid rock spheres and include Mercury, Venus, Earth, and Mars.

What is an outer planet?

Designation of planets less dense than Earth, with a large amount of gaseous substances, mainly hydrogen, helium, methane and ammonia

What are meteorites?

Meteorites are fragments of solid matter that come from space and reach the Earth's surface.

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Answer:

ganymede → orbits jupiter

Explanation:

Ganymede, a satellite (moon) of Jupiter, is the largest and most massive of the Solar System's moons.


Could blood on the clothes of a murder suspect be used to implicate him in the crime?

Answers

Answer:

yeah if the blood matches the victim then the suspect is gonna be taken in for custody and tried for murder

Explanation:

Answer:

yes blood on the clothes of a suspect can implicate him

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