Answers
Based on the chart, we can conclude that the first vertebrates were fish. Moreover, the chart also shows that flowering plants are the last plant taxonomic group that emerged on Earth.
In this case, the chart suggests that the earliest vertebrates (fish) evolved during the Ordovician period.
The main animal groups that emerged during vertebrate evolution include (in this order) amphibians, reptiles, mammals, birds and finally humans.
Moreover, according to the chart, the latest major group of plants to evolve were flowering plants during the Cretaceous period.
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Related Questions
What happens to nutrient macromolecules in an animal's digestive tract?
A) The digestive breakdown of macromolecules determines the monomers that are
immediately needed and therefore produced.
B) Proteins and nucleic acids are digested into monomers before absorption; energy-storage
macromolecules (starch and fat) are absorbed whole.
C) They are absorbed whole and are then broken down into monomers within cells that
ultimately use them.
D) Nutrient macromolecules are digested into monomers before absorptio
3.33 Points
Answers
Answer:
D
Explanation:
Nutrient macromolecules are digested into monomers before absorption. a tube-shaped compartment for the transport, digestion, and absorption of food.
Which types of cells replicate using meiosis?
Answers
please help me! I'll give tons of points.
Answers
Explanation:
hypothesis - every consumption of oxygen 0.5 the times of intensity of effort 50
conclusion - so it's clearly show that oxygen rates falls rapidly by their consuption
Answer:
thanks for the points
Explanation:
......... ❤️ ........
any body come with me for test
Answers
Human embryonic development is the development and formation of the human embryo. It is characterized by the process of cell division and cellular differentiation of the embryo that occurs during the early stages of development. In biological terms, the development of the human body entails growth from a one-celled zygote to an adult human being. Choose ALL of the statements that correctly describe stages in human embryology and gestation.
The normal period of gestation is about 40 weeks.
The germinal stage refers to the time from fertilization through the development of the early embryo until implantation is completed in the uterus in about 21 days.
The stages of human development include, in order: zygote, blastocyst, embryo, and fetus
A blastocyst, if untouched and allowed to remain implanted, will eventually develop into a morula.
Changes to the form of the embryo come from differentiation and growth.
Answers
The statements that correctly describe gestation are: the normal period of gestation is about 40 weeks; the stages of this process include: zygote, blastocyst, embryo, and fetus; and changes to the form of the embryo come from differentiation and growth.
The gestation period in humans lasts about 40 weeks and comprises different stages and processes from conception until birth. The main stages of this process include:
Zygote: Fertilized ovum.Blastocyst: Cluster of cells that is the result of the zygote going through cell division.Embryo: Unborn human that is still developing, usually before the 8th week of gestation.Fetus: Unborn human in development after the 8th week of gestation.Moreover, this process implies differentiation as cells specialize for specific functions, for example, muscle cells or nerve cells, and growth as the number of cells increases and therefore the embryo or fetus increases in size.
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Answer:
Many different types of cells make up the human body. Therefore, it is important for cells to differentiate to form different types of tissue. The tissue can then combine to form different organs and systems that carry out specialized functions for the human body.
Explanation:
The vestibulocerebellum helps regulate _________; the spinocerebellum helps regulate _________ and the cerebrocerebellum helps regulate __________.
Answers
The vestibulocerebellum helps regulate balance and eye movement. Moreover, the spinocerebellum helps regulate body and limb movement and the cerebrocerebellum helps regulate in planning movements.
The vestibulocerebellum is a region of the cerebellum which involved in balance and body position in space.
The spinocerebellum is involved in controlling lateral descending systems in order to regulate distal limb muscles.
The cerebrocerebellum is involved in motor planning by connecting the motor and premotor cortices.
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4. Is the sugar in the nucleotide to the right deoxyribose or ribose? How do you know?
Answers
Answer:
The pentose sugar in DNA is called deoxyribose, and in RNA, the sugar is ribose.
Explanation:
4. how many axes of symmetry exist in this figure?
Answers
Answer:
5
Explanation:
5 OR B
Answer:
5
Explanation:
the answer is b
4. Don't
fishing when it's windy.
b) play
c) go
a) do
d) eat
Answers
Answer:
Go
Explanation:
Dont go fishing when its windy
If each parent has two sets of genes and chromosomes why do their offspring receive only one set from each parent
Answers
Answer:
Because we are diploid humans, and we have 2 chromosomes per set. We get one set from our mother, and one from out father. Each of the sets from our parents are haploid (1 ), so together they are a diploid(2) set. I can go into depth more with meiosis if you need.
Explanation:
Which part is hydrophobic?
Tails
heads
legs
arms
Answers
Answer: the tails are hydrophobic and the heads are hydrophilic
How might the release of heavy metals into the environment be factored into the costs of using coal as an energy source?
Answers
Answer: The release of heavy metal into the enviroment could possibly be dangerous becasue of pollution.
Explanation:
Pollution can harm some factories in which the energy could stop as the metals could mix into the coal and not continue with the process and could stop the production. Hope this was helpful!
The release of heavy metal into the environment could possibly be dangerous because of pollution be factored into the costs of using coal as an energy source
What are the types of energy ?The energy can be defined as ability to work or produce action and / or movement and manifests itself in many different ways, such as body movement, heat, electricity, etc.
The different types of energy include Kinetic energy which is associated with the movement of bodies. Potential energy which is stored by virtue of a body's position relative to its surface is also called gravitational potential energy.
Thermal Energy or Heat can be defined as the energy associated with the kinetic energy of the molecules that make up an element, it can be manifested if there is a temperature difference between two bodies.
Chemical energy released or formed from chemical reactions, Solar energy from sunlight. This form of energy is used to generate electricity through photovoltaic plates, for example.
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True / False
HIV is unique because it copies the information for reproduction from RNA back into DNA.
Answers
Explanation:
True. it is a virus and that's how viruses reproduce.
HIV is a virus which is unique because it copies the information for reproduction from RNA back into DNA, the statement is true.
What is virus ?A virus is a nonliving thing which is a connecting link between living and nonliving organism, depend on living host cell for their survival.
virus contain a chain of nucleic acids (DNA or RNA) which use different parts of the cellular machinery to reproduce, and releases the replicated nucleic acid chains
A virus has a protein coat or protein envelope allows the virus to survive between hosts act as a protective covering, do not have cells and lack a cell wall .
The protein coating is called as the capsid, genetic element present and is characterized by the evolution of the virus and the host.
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Assess It! Part 2
KESLER
SCIENCE
Use the vocabulary words from "Read It" to complete the
following sentences.
When rocks break apart into smaller pieces, it is called
(4)
Changes in temperature can cause rocks to
become slightly larger, or (5).
and become
slightly smaller, or (6)
This is often seen with a
type of weathering called (7)
where water
freezes and thaws inside the cracks of rocks. Another
type of weathering is called (8).
I
where the salt
that is left behind when water evaporates can cause
pressure in cracks of the rock.
Words are
Mechanical
Weathering
Depositon
Expand
Contract
Freeze thaw
Frost wedging
Salt wedging
Evoparte
Answers
Answer:
This unit is divided into 3 Arcs. Arc 1 answers the essential question, “What is weather and what factors influence
the weather?” The learning activities included in this arc guide students to use observation skills in order to
describe, explain, and predict weather patterns. Students will learn that the sun’s energy is the driving force of our
weather. They will complete activities to learn about wind, clouds, precipitation, temperature, and the role the
water cycle plays in our weather.
In Arc 2, students examine the essential question, “How does the ocean affect our weather?” Students will
complete activities to help them describe and explain the gulf stream, El Nino, La Nina, Sea and Land Breezes as
well as hurricanes.
Arc 3 allows students to investigate the essential question, “How does weather affect our lives?” Students will
complete activities to help them explain why our choices are based on the weather, as well as the impact that
climate change as on ecosystems. During the culminating activity in Arc 3, students research how to prepare for
extreme weather. Students have several opportunities to use their observations skills while working on their
nature journal
Explanation:
Weathering is the process by which rocks disintegrate into smaller fragments. Rock expands (with heat) and contracts (with cold) in response to temperature changes.
What is Weathering?Weathering is the deterioration of rocks, soils and minerals as well as wood and artificial materials through contact with water, atmospheric gases, and biological organisms.
Rock responds to temperature fluctuations by expanding with heat and contracting with cold. This is frequently observed with a weathering process known as Frost wedging, in which water freezes and thaws inside rock fissures. Salt wedging is a different type of weathering in which the salt that is left over after water evaporates can exert pressure on rock fissures.
Thus, Weathering is defined as the process by which rocks disintegrate into smaller fragments.
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How many genes are shared by all viruses?
Answers
Answer:
200 approximate
Explanation:
depends how many in common
How does air pressure (behave)?
Answers
Answer:
Pressure has a magnitude but no direction associated with it. Pressure acts in all directions at a point inside a gas. At the surface of a gas, the pressure force acts perpendicular to the surface. ... So the pressure would also push on the bottom of the box and on the sides.
Explanation:
1. There are two birds that live in the same type of tree, same climate, and eat the same type of fruit. However, one is nocturnal (awake at night) and the other is diurnal (awake in the day). Explain why these two birds are considered to have different niches.
Answers
Answer: different species
Explanation: They live in the same community like a Gouldian finch and a Double-Barred finch but are different species
However, one is nocturnal (awake at night) and the other is diurnal (awake in the day) as it consist of different species and they live in the same community like a Gouldian finch and a Double-Barred finch but are different species.
What shows the low light in the evening?The hours of low light in the evening shows that it would be when humans would be most at risk from dangers. Species might make sense to seek shelter during this period.
As a result of their divergent evolutionary paths, various species have evolved in various ways to adapt to their habitats. The reason a certain species is nocturnal or diurnal has a variety of different potential causes. Perhaps at night, when light levels are low, when humans would be most exposed to dangers. The decision to seek sanctuary during this time may therefore be justified. Considering the various predatory dangers that mice and rats encounter, it is possible that being active at night reduces the threat posed by predators like birds who utilize their visual senses to identify prey.
Therefore, However, one is nocturnal (awake at night) and the other is diurnal (awake in the day) as it consist of different species and they live in the same community like a Gouldian finch and a Double-Barred finch but are different species.
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why is the dominant allele seen in a heterozygous individual
Answers
Answer: Since it's the DOMINANT allele that means that it will take over reccesive allele that's why it's shown.
Explanation: A heterozygous individual is an individual where the have both the dominant and reccesive allele for a trait. The dominant allele will always be stronger than the reccesive allele. This results in the dominant allele being shown.
Which of the following correctly describes the structural arrangement of the cell membrane?
Answers
____ is the process in which light energy is transformed into food energy.
life
photosynthesis
abiotic
biotic
Answers
Option B: Photosynthesis.
Answer:
B
Explanation:
I did the test
. What is the first step of thermonuclear fusion within the Sun to form helium-4?
The fission of hydrogen to form protons and neutrons.
Two lithium atoms, each with three protons and three neutrons, undergo fission to form hydrogen atoms with
Two hydrogen nuclei, each with only one proton, fuse to form deuterium, a form of hydrogen with one protor
O Electrons and protons fuse to form the nucleus of a helium atom.
Answers
Answer:
a nucleus of Deuterium (2H)
Explanation:
formed from two protons with the emission of an antielectron and a neutrino. In the basic Hydrogen fusion cycle, four Hydrogen nuclei (protons) come together to make a Helium nucleus.
Think about the ecosystem that you live in.
Write a response below describing it in complete sentences.
Use each of these terms correctly in your description:
community
population
ecosystem
individual
biotic
abiotic
Answers
The ecosystem is a habitat in which different types of biotic and abiotic organisms coexist.
How is the ecosystem made up?The ecosystem in which we live is coexisting with different types of population. Biotic and abiotic organisms coexist, interdependent organisms that share the same habitat. Through different processes such as predation, symbiosis, parasitism, they will disintegrate and reform to give themselves the energy and nutrient cycle.
The relationship that occurs between the community and its environment will be a flow of matter and energy in the ecosystem. There will also be different types of ecosystems such as marine, terrestrial, microbial and artificial. In all of these there will be food chains between the different species.
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If a nucleus has eight chromosomes following replication, how many chromatids does it have?
Answers
Answer:
It has 16 chromatids
Explanation:
Since each chromosome has 2 chromatids
Need help with this biology pedigree question.
Answers
18.
Which of the following would be an example of an animal being in the lower limit
of tolerance?
a. A shark in warm water.
b. A bird in a tree that has everything it needs.
C. A frog being in water that is too cold to maintain homeostasis.
d. None of the above
Answers
Answer:
I think it would be A.
Proteins are made on cell structures known as.…
Answers
Answer:
Ribosomes
Explanation:
Ribosomes are organelles made of ribosomal RNA (rRNA) and protein. They exist in the cytoplasm of the cell and are the site of protein synthesis in all cells. Ribosomes read the codons in mRNA and catalyze the creation of peptide bonds between the appropriate amino acids, forming polypeptide chains.
Choose ALL of the correct answers.
Which of the following must be true in order for natural selection to occur?
Group of answer choices
There must be variation in traits in the population
The trait must cause the individual to evolve
The trait must have no other advantage in fitness
The trait must be for the good of the species
The trait must be heritable
The trait must advance the goal of evolution
Answers
Answer:
For natural selection to occur, it is true that there must be genetic variation in the population.
Explanation:
According to evolution, natural selection implies the changes that occur in the genotype of a species, due to the effect of environmental factors, and which guarantee its survival through adaptive evolution.
For natural selection to occur, three fundamental conditions must exist:
A trait that can be inherited from one generation to another.
The trait is subject to variability between subjects of the same species.
Genetic variability can determine the possibility of reproductive success and survival.
Therefore, a necessary factor for natural selection to occur is that genetic variability exists in the population.
For natural selection to occur :-
There must be variation in traits in the population.The trait must cause the individual to evolve.The trait must be for the good of the species.The trait must be heritable.The trait must advance the goal of evolution.What is Evolution?It is the change in the characteristics of a species over several generation.It relies on the process of natural selection.
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please help me i’ll give brainlist
Answers
Answer:
B
Explanation:
Jennipher was asked by her mother to take a certain kind of fish in a bucket full of water so that she can prepare it for meal.when jenipher touched the fish she felt like an electric shock to her hand. what behavioural mechanism did the fish generate?
Answers
The fish use reacting behavioural mechanism in order to protect itself from the danger.
The fish uses reacting behavioural mechanism when the fish sense any type of danger surrounds it. This behaviour is a type of defense mechanisms which is used to defend and protect itself.
The fish apply electric shock in order to protect itself from the attackers and give harm to the other organisms which comes in contact with it so we can conclude that the fish use reacting behavioural mechanism in order to protect itself from the danger.
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Why do sunspots appear as dark spots on the surface of the Sun?
Answers
Answer:
I think it is because the sun has released energy and looses light in that area because of it.
Explanation:
Answer: Sunspots are "dark" because they are cooler than their surroundings. ... Sunspots have a lighter outer section called the penumbra, and a darker central region named the umbra. Sunspots are caused by disturbances in the Sun's magnetic field welling up to the photosphere, the Sun's visible "surface".
Facts about the sun: The Sun is the star at the center of the Solar System. It is a nearly perfect ball of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy mainly as visible light, ultraviolet light, and infrared radiation. It is by far the most important source of energy for life on Earth.
Surface temperature: 5,778 K
Mass: 1.989 × 10^30 kg
Radius: 432,690 mi
Age: 4.603 billion years
Distance to Earth: 92.96 million mi
Spectral type: G2V
Moons: 3122 Florence, 90482 Orcus