Answer:
A) dinosaurs, reptiles, and birds had a common ancestor
Explanation:
The dinosaurs have not evolved as a separate phylum that has not close relations with other animals, but instead they share a common ancestor with the likes of the reptiles and the birds. The reptilians have actually emerged before the dinosaurs, but the dinosaurs managed to take up the top niches in the food chain after they appeared never the less. The birds on the other hand are actually an evolutionary product of the diversification of the dinosaurs. the birds have actually evolved from small bipedal dinosaurs, that over time started to take up new way of life and appearance in order to conquer the skies.
Answer:
A
Explanation:
which of the following statements is NOT one of the ideas Lamarck had regarding evolution ?
ANSWER ASAP
Answer:
What was incorrect about his theory of how organisms evolve? Lamarck thought that greater use or disuse of a structure or organ would cause changes that could then be passed on to offspring.
Explanation:
He thought organ caused changes to
offspring (ex: I broked my leg and now my son leg will be broken too)
What acts as a source of heat in the mantle and results in mantle convection?
A. Volcanoes
B. The asthenosphere
C. Slab pull
D. Earth's core
Earth's core acts as a source of heat in the mantle and results in mantle convection.
Answer: Option D
Explanation:
The earth is divided into three layers namely the outer crust, the middle mantle and the inner core. The inner core layer of the earth has very high temperature due to which it is very hot and it acts as source of heat for the middle layer mantle.
Mantle convection is the moderate crawling movement of Earth's strong silicate mantle brought about by convection flows conveying heat from the earth’s core to the earth’s crust. Thus the Earth's core acts as the heat source for mantle.
Final answer:
The heat in the mantle resulting in mantle convection comes from d) Earth's core. This heat causes convection currents that are crucial to the movement of tectonic plates, forming new lithosphere and driving volcanic and geological activity.
Explanation:
The source of heat in the mantle that results in mantle convection is Earth's core. The heat flows outward from Earth's interior, and this transfer of heat from the hot core to the cooler mantle creates convection currents. These convection currents are essential because they act as the primary driving force for the movement of tectonic plates. When these currents move upward in the mantle, new lithosphere is formed, and tectonic plates move apart, a process known as divergence. Conversely, where plates converge, one plate may be subducted beneath the other, which can create trenches and result in volcanic activity.
Important Processes and Locations Influenced by Mantle Convection
Generation of magma at subduction zones due to flux melting, where the addition of volatiles lowers the melting point of mantle material.
Formation of new crust at mid-ocean ridges where seafloor spreading occurs.
Creation of hotspot-generated volcanoes above mantle plumes, which are not associated with any specific plate boundary.
how have scientist started to study relationships between different groups of organisms?
A. by watching how the different organisms interact with each other
B. by stating how they mate
C. by using genetic analyses
D. by studying the organisms in their natural habitat
The scientist started to study relationships among various groups of organisms C. by using genetic analyses.
Explanation:The following features were used to study about the relationships between different groups of organism:
External morphology Similarities in structure Genetic analysis Chemical compositionThe molecular similarities in the structure of RNA, DNA, and proteins help to establish the relationship of relationships between different groups of organisms. This was studied through testing the samples obtained by organisms using genetic analyses.
complete the six kingdom chart below
Answer: Animalia, Plantae, Fungi, Protista, Bacteria, and Archaea.
The Six Kingdoms include Animalia (multi-cellular, nervous system, consume organic material); Plantae (multi-cellular, photosynthetic); Fungi (absorb nutrients from surroundings); Protista (single-celled, diverse in nature); Eubacteria ('true bacteria'); and Archaebacteria (found in extreme environments)
Explanation:The 'Six Kingdom Chart' generally comprises the following categories: Animalia, Plantae, Fungi, Protista, Eubacteria, and Archaebacteria. Here's a brief summary:
Animalia: multi-cellular organisms, have a nervous system, reproduce sexually, and consume organic material for sustenance.Plantae: multi-cellular organisms, capable of photosynthesis, reproduce sexually or asexually.Fungi: can be single-celled or multicellular, obtain nutrients through absorption from surroundings.Protista: mostly single-celled, with vast diversity, can be plant-like (photosynthetic), animal-like, or fungus-like in nature.Eubacteria: single-celled organisms, commonly known as 'true bacteria' found in many environments.Archaebacteria: single-celled organisms, often found in extreme environments, have distinctive molecular characteristics separating them from other organisms.Learn more about Six Kingdom Chart here:https://brainly.com/question/31556116
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How many ml of water would be displaced by 408g of lead
Answer:
408 grams therefore has a volume of (408/11.35) = 35.947cc. It displaces 35.947cc of water, = 35.947 millilitres. When lead is put in water, it will displace same volume of water. Therefore, 408 g of lead will displace 36 ml of water.
The volume of 408g of lead is approximately 36 ml. This means that when this quantity of lead is dropped into water, it will displace approximately 36 ml of water.
Explanation:To answer this question, we need to use the concept of density. The density of lead is approximately 11.34 grams per cubic centimeter (g/cm³). The volume of an object can be determined by its mass divided by its density. So, the volume of 408g of lead would be: 408g / 11.34 g/cm³ = 35.97 cm³.
Since 1 cubic centimeter is equivalent to 1 milliliter, you would displace approximately 36 milliliters of water (rounded to the nearest whole number) when you drop the 408g of lead into it. Keep in mind this calculation assumes that the lead is solid and has no hollow spaces within it.
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Molecule 1 has the following sequences of bases: AGCTTA. Which set of base in molecule 2 will bond to this sequence in complementary way?
A) ATTCGA
B)UCGAAU
C)UCGTTA
D) GATCCU
Answer:B) UCGAAU
Explanation: Molecule 1 is a DNA molecule while molecule 2 is an RNA. In DNA bases present are Cytosine, Guanine, Adenine and Thymine. During pairing, Guanine pairs with Cytosine while Adenine pairs with Thymine. Bases present in an RNA molecule are Adenine, Uracil, Guanine and Cytosine. During pairing, Adenine pairs with Uracil which Guanine pairs with Cytosine.
Answer:
the ANSWER is B. UCGAAU
Explanation:
i got the answer on the test assement
gametes that are the same in the size and shape is known as
"Gamete Types. Some male and female gametes are of similar size and shape, while others are different in size and shape. In some species of algae and fungi, male and female sex cells are almost identical and both are usually motile. The union of these types of gametes is known as isogamy."
Credits:
thoughtco.com
Which substance is organic?
sodium cyanide, NaCN
the mineral magnesite, MgCO3
carbon monoxide gas, CO
the sugar sucrose, C12H22O11
Answer:
its D
Explanation:
Answer:
Yeah its D
Explanation:
I did the assignment :)
Which virus has a structure that includes an outer lipid bilayer that is studded with proteins?
Answer:
Some viruses, such as Influenza virus and HIV virus, also have an envelope which covers capsid. The envelope is an outer lipid bilayer that is studded with proteins.
Answer:
influenza virus
Explanation:
I am the answer giver and this is your answer.
Describe the importance of biomes such as forests, freshwater, and marine biomes? How have human actions affected these biomes? (Site 1)
Answer:
many humans have been destroying these biomes over the years.
Forest biome: It gives us medicinal plants, woods for commercial purpose. Forests provides us rubber and fibers that is very important for the industries for making various products. They also contribute to perform ecological functions such as carbon storage, nutrient cycling, water and air purification. It also provides habitat to the wildlife.
Freshwater biome: We use fresh water for drinking water, irrigation, sanitation systems, and in industrial factories. Water used from groundwater, rivers and lakes is regained by rain and snowfall.
Marine biome: It serves huge amount of oxygen into the environment and absorbs the atmospheric carbon dioxide.
As a result of the activity of human there is a significant decrease in the number of trees. The products now used are synthetically made which were made up of natural fibers previously. The water source such as rivers, lakes, and ponds are polluted due to which many water borne diseases are increasing day by day. The accumulation of waste which are found in marine biome are reducing the number of flora present inside marine ecosystem.
The forest biome, freshwater biome, and marine biome are vital to living organisms because they provide food, oxygen, and medicines, among other things. Human activities are destroying the biomes and having many negative impacts in these biomes.
What are the negative impacts on the biome?biome, such as the plants present in the forest biome, take carbon dioxide and make glucose and oxygen with the help of sunlight, and this is the major source of food for all heterotrophs (both animals and humans). Humans use those raw materials and convert them into usable products; animals and plants are used for medicines, food, etc.
Because water makes up the majority of the Earth, oceanic plankton and animals are responsible for the majority of carbon fixation. The freshwater biome is important for drinking water, for edible fish and shrimp, for factories, for bathing, etc., but human activities induce forest fires and make the water polluted.
Hence, although all these are important, humans negatively affect them.
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What is the order of Mitosis?
Anaphase
New Nucleus Formed
Prophase
Cytokinesis
Metaphase
Telophase
(order them below for brainliest and a thank you)
Answer: cytokinesis-mitosis-new nucleus formed.
In mitosis order of events are.
Prophase - Metaphase - Anaphase- Telophase.
I remembered it like this "PMAT".
HOPE THIS HELPS YOU FRND
The correct order of stages in mitosis is:
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis.
Mitosis is a fundamental process in eukaryotic cell division, ensuring the accurate distribution of genetic material to daughter cells.
The sequence of stages in mitosis is intricately orchestrated, each phase serving a specific purpose in the division process.
Prophase: Chromosomes condense and become visible.
The nuclear envelope disintegrates .Mitotic spindle fibers begin to form.
Metaphase: Chromosomes align along the cell's equator, known as the metaphase plate. Spindle fibers attach to the centromeres of each chromosome.
Anaphase: Sister chromatids are pulled apart by spindle fibers toward opposite poles of the cell.
Each chromatid is now considered an independent chromosome.
Telophase:
Chromosomes reach the opposite poles and de-condense. A new nuclear envelope forms around each set of chromosomes.
Mitotic spindle fibers disassemble.
Cytokinesis:
The physical division of the cell into two daughter cells.
In animal cells, a cleavage furrow forms, pinching the cell membrane.
In plant cells, a new cell wall, known as the cell plate, develops to separate the cells.
During telophase, the formation of a new nucleus marks the final stages of mitosis.
This meticulous sequence of events ensures that each daughter cell receives an accurate and complete set of genetic material.
Mitosis is essential for growth, development, and tissue repair in multicellular organisms.
For such a more question on mitosis
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**WILL MARK BRAINLIEST AND THANK YOU**
Forensic Science
Which information is necessary to determine the speed of a vehicle in an accident?
A. Distance between tires and length of the skidmarks
B. Length of skid marks and type of pavement
C. Length of skidmarks, type of pavement, and wet or dry conditions
D. Length of skidmarks alone
Answer:
The correct answer is C; Length of skidmarks, type of pavement, and wet or dry conditions
Answer:
Explanation:
c
Which of the following is NOT an example of a major hazard to human health? b. air pollutants c. earthquakes d. unsafe working conditions e. infertility
Answer:
E. Infertility
Does a snake eat a beaver?
No, snakes do not eat beavers. Animals that eat beavers are coyotes, hawks, brown/black bears, river otters, lynx, eagles, mountain lions, owls, wolverines, and lastly, wolves.
No snakes do not eat beavers
20. Mendel's law of segregation states that
A. if a parent has a dominant allele, its offspring will exhibit the dominant trait only.
B. traits tend to segregate, with multiple recessive traits often showing up in the same offspring.
C. genes are segregated independently of each other.
D. offspring receive one allele for each trait from each parent, and the allele from each parent is distributed randomly.
Answer:
D
Explanation:
Each allele from one parent randomly segregates into the gametes during gamete formation, resulting in each allele being present in half of the parent's gametes. Thus option D is correct.
What is Mendel's law of segregation?The two alleles for each trait segregate, or separate, during the development of gametes, and that the alleles will randomly join with other alleles throughout the development of new zygotes.
With two copies of each gene, the law of segregation guarantees that either allele can be passed down from a parent. The likelihood that each allele will form a zygote will be equal for both.
The genome is carried by sexually reproducing organisms in two identical copies. Each gamete carried a copy that was inherited from each parent.
When both copies of the genome are present, these organisms are said to be diploid, and when only one copy is present, they are said to be haploid.
Therefore, offspring receive one allele for each trait from each parent, and the allele from each parent is distributed randomly.
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need help asap!!!
Sound waves travel down the ear canal and strike the _____, causing it to vibrate and to pass the vibrations on to small bones in the middle ear.
(A)eardrum
(B)anvil
(C)stirrup
(D)cochlea
(A) eardrum
Explanation:A. Eardrum
Explanation: Sound waves enter the outer ear and travel through a narrow passageway called the ear canal, which leads to the eardrum. The eardrum vibrates from the incoming sound waves and sends these vibrations to three tiny bones in the middle ear.
Which of the following terms best describes a black bear
Herbivore, they both eat animals and plants
Describe the planet in the movie Wall-E
Answer:
It looks like a very polluted planet that not very many people want to be in. It looks murky and dusty, rubbish everywhere, pieces of parts of what mechanic would use to build or fix a car. There were no trees or grass or any natural things that would be around us now.
Hope this helps.
In 'Wall-E,' Earth is portrayed as a desolate, trash-filled planet that has been abandoned by humans, with only the robot Wall-E remaining to clean it up.
Explanation:The planet depicted in the movie Wall-E is a dystopian version of Earth. It has become a barren wasteland overflowing with garbage and devoid of life as we know it due to extreme pollution and environmental neglect. In the film, Earth's human inhabitants have evacuated the planet on giant spaceships, leaving behind only Wall-E, a robot tasked with cleaning up the trash-covered surface. Over time, the planet shows signs of a possible return to habitability when Wall-E discovers a growing plant, indicating that life can potentially be sustained again.
which of the following is not part of a chromosome?
a. many strands of RNA
b. many proteins
c. a standard of DNA
d. a gene
Answer:
A
Explanation:
The component not part of a chromosome is 'many strands of RNA'. The chromosomes are composed of DNA, specific sections of which form genes, and histone proteins for structural support. Although RNA results from genetic instructions within chromosomes, these strands of RNA are typically not part of the chromosome itself.
Explanation:The correct answer to your question is a: many strands of RNA. To explain, chromosomes are made up of densely packed DNA and proteins and carry genes that contain instructions for making proteins. This process takes place in the cell nucleus. The DNA in the chromosomes is first transcribed into RNA and then RNA is translated into proteins. However, these strand of RNA are generally not part of the chromosome itself but result from the genetic instructions coming from the genes residing in the chromosomes.
The options b: many proteins, c: a strand of DNA and d: a gene are indeed components of a chromosome. The DNA forms the basis of the chromosome and genes are specific sections of this DNA that code for specific proteins. The proteins mentioned here primarily refer to histone proteins around which the DNA is wrapped, providing structural support to the chromosome.
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One thing that a butterfly and a dolphin have in common is that they consist of million of cells. This means they are both classified as ________.
A. Prokaryotes
B. Eukaryotes
C. Unicellular
D. Multicellular
E. Autotrophs
F. Heterotrophs
Answer: multicellular
The term "multicellular" means having many cells. A butterfly and dolphin are both classified as multicellular organisms because they consist of millions of cells.
One thing that a butterfly and a dolphin have in common is that they consist of million of cells. This means they are both classified as Multicellular which is in option D as both butterflies and dolphins are multicellular organisms.
The cells in multicellular organisms are organized into tissues, which are groups of cells that work together to perform a specific function. Different types of tissues can be found in multicellular organisms, such as muscle tissue for movement, nervous tissue for communication and coordination, epithelial tissue for lining and protecting body surfaces, and connective tissue for support and structure. Tissues can further organize into organs, which are structures composed of multiple tissues working together to carry out specific functions.
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Three examples of human activities that could endanger botana curus
Answer:
Three examples of human activity that could endanger Botana curus are:
a. Destruction of natural habitat.
b. Overharvesting.
c. Pollution.
which of the following instruments did scientists use to observe cells and formulate the cell theory?
A: magnifying glass
B: microscope
C: peice of glass
D: eyeglass lens
The answer would be B) microscope
The first cell to ever be discovered was by Robert Hooke in 1665 using a microscope.
Answer:
Microscope
Explanation:
I took the test and go 100%
Buenos Aires' largest shopping mall is called____
Avenida Santa Fe
Patio Bullrich
Abasto Shopping
EXICAL
Answer:
Abasto Shopping
•It is one of the biggest shopping malls of Buenos Aries`
Answer:
Abasto Shopping
Explanation:
It is one of the largest shopping malls in Buenos Aires, Argentina.
I am joyous to assist you anytime.
Which of the following statements is true of sound waves? * 3 points Sound waves are found on the electromagnetic spectrum Sound waves do not require a medium to travel through Sound waves can travel through outer space Sound waves are a kind of matter wave, which requires material in order to travel
Answer:
The electromagnetic spectrum is a range of electromagnetic waves, in order of increasing wavelength/decreasing frequency
Answer: I think it is D. Sound waves are a kind of matter wave, which requires material in order to travel
Explanation: Sorry if i'm wrong
Which best describes how an iconic bond forms
When an atom transfers/ gains a valence electron, it gains either a positive or negative charge. in the Proces, becoming an ion. because of the negative/positive charge the two ions are now attracted to each other.
Answer:
Explanation:
It is a type of chemical bond that generates two oppositely charged ions. In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion.
Which benefit of ice on the surface of a lake is most helptful to fish? A. It shades the fish from the heating effects of the sun B. It insulates the fish from the cold air above C. It helps them stay cold D. It prevents them from swimming in the winter
B. It insulates the fish from the cold air above
Just like an igloo
Answer:
Option B, It insulates the fish from the cold air above
Explanation:
Water bodies in cold climatic regions have frozen ice at their top. Basically, this ice (frozen water) entraps air pockets inside it which acts like an insulator and prevent the aquatic plants and animals from the extreme cold climate. Thus, ice on the surface of any water body protects the species beneath the ice layer from extreme cold climatic conditions. For example Michigan lakes and ponds get freeze during cold climatic condition.
Option B is correct
This illustration shows a kind of animal that is a free-living organism. What is the common
name of this organism?
planarian
tapeworm
amoeba
fluke
The illustration that is shown in the diagram is a kind of animal that is a free-living organism and is called a planarian. It is present in the first option. The planaria belong to the phylum Platyhelminthes.
What are the nonchordates?The nonchordates have no notochord, and there are different phyla, such as Porifera, Coelenterata, and Platyhelminthes, etc., and different types of body organizations are found in the different phyla. The Porifera phylum includes sponges, which have a cellular level of organization; the Coelenterata phylum includes hydra and corals, etc., and tissue-level organization is seen in this phylum. The platyhelminthes phylum includes the planaria, teania, etc., and they have organs such as the excretory system, etc., and the planaria is a free-living organism.
Hence, the illustration that is shown in the diagram is a kind of animal that is a free-living organism and is called a planarian. It is present in the first option.
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When DNA is duplicated during mitosis, _____.
one completely new DNA molecule is formed
two completely new DNA molecules are formed
two molecules are formed, each with one original side
the original molecule thickens and separates into two
Two molecules are formed each with one original side.
aka semi-conservative replication(the resulting double helix is composed of both an old strand and a new strand)
Hope this helps:)
Answer:
Two molecules are formed, each with one original side.
In a paternity testing case, a child's DNA was collected to see if it matched both parents' DNA. Which type of genetic material can be used for the DNA fingerprinting?
A.
coding DNA
B.
noncoding DNA
C.
RNA
Answer: A. coding DNA
Explanation:
Which part of the membrane helps chemical reactions happen?
O
A. Nucleic acids
B. Enzymes
C. Fatty acids
O
D. Phospholipids
the answer is B. Enzymes :)
Answer:
it is enzymes
Explanation: i just answered it