Do fossils provide a complete record of all the extinct species that lived on Earth? Why or why not?

A. Yes, because all species left fossils behind.
B. Yes, because the traits of many species can be inferred from a single fossil.
C. No, because many species went extinct without leaving fossils behind.
D. No, because fossils break apart after about 65 million year

Answers

Answer 1

C no because many species went extinct without leaving fossils behind

Answer 2

Answer:

C. No because many species went extinct without leaving fossis behind.

Explanation:

Not all species will leave fossils and we can't infer things about other species from a fossil of a specific species.


Related Questions

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

Answers

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.

Three examples of human activities that could endanger botana curus

Answers

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 is not part of a chromosome?

a. many strands of RNA
b. many proteins
c. a standard of DNA
d. a gene​

Answers

Answer:

A

Explanation:

Final answer:

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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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

Answers

Answer:

The correct answer is C; Length of skidmarks, type of pavement, and wet or dry conditions

Answer:

Explanation:

c

A nerve impulse travels from one cell to another by passing
A- one axon to another axon
B- one dentrite to an axon
C- one axon to a dentrite
D- one dentrite to another dentrite

Answers

The answer is C.

The reason why is because when the nerve impulse reaches the axon then moves its way to the bottom where the dentrite is, chemical messengers called neurotransmitters are released.


Which event would MOST LIKELY speed up the process shown in the diagram?
A) another ice age
B) continental drift
C) a reversal in Earth's magnetic field
D) an increase in atmospheric carbon dioxide

Answers

an increase in atmospheric carbon dioxide

Answer: D

Answer: D) an increase in atmospheric carbon dioxide

Explanation: usatestprep approved

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

Answers

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

helped needed asap! urgent

Answers

Answer:

the answer is parasitism

Explanation:

the parasite benefits by taking nutrients, and the other is losing it.

Answer:

The answer is Parasitism

complete the six kingdom chart below​

Answers

Answer: Animalia, Plantae, Fungi, Protista, Bacteria, and Archaea.

Final answer:

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.

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How many ml of water would be displaced by 408g of lead

Answers

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.

Final answer:

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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What happens when an electrical gradient and a chemical gradient are applying opposite forces to active transport?

Answers

Answer:

Active transport utilises a carrier transport protein molecule that hydrophilic pathway is specific to allow molecules to pass through one directional. Hence, nothing happens to active transport.

Answer:

The active transport keeps the ion balance across the membranes.

Explanation:

The active transport needs both gradients to work one against each other to move the ions across the membranes, that means opposite forces will keep the active transport working.

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

Answers

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

Why was T.Rex able to see the insurance broker in the bathroom

Answers

Answer: Because it was tall?

Explanation:

An infected mosquito may potentially bite a person with untreated or inadequately treated malaria. These disease-carrying mosquitoes can transfer the sickness to others by biting and infecting healthy people. Direct human-to-human transmission of malaria is not possible.

What plasmodium cause disease to healthy individual?

Rhonaldros was tackling a challenge. A healthy individual couldn't be bitten by musketoe because of the sickness. He was able to recognize particular species of human-biting scio females and Avillus moscleto.

Infectious stages of the plasmodium are transmitted to the individual who was bitten by the mosquito when it was carrying plasmodium. When a healthy individual contracts malaria, this is used to treat the transmontane form of the disease. The truth is that musquetoe can spread malaria to a healthy individual. The moschitoeon was not bitten by the rans.

Therefore, T.Rex, able to see the insurance broker in the bathroom.

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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​

Answers

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%

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.

Answers

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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Sunlight-Rose-Honeybee-Skunk-Eagle
study the food chain above. if the population of homeybees had a major increase, which of the following would most likely happen.​

Answers

The rose population would decrease because the bees would need more food. Since the skunk has more food, it would increase and the eagle population would probably increase too because of more access to skunks. The eagle interpretation may be true unless the eagle is perceived as a scavenger. Then the population would most likely stay the same. The sun would stay the same because it is an abiotic factor in an ecosystem. your welcome fam

Sunlight is the same (obvs) then roses decrease because there are more honeybees to eat them. Skunks would probably increase bc there are lots more honeybees to eat but then honeybees decrease probably. Eagles increase cos skunks increased after honeybees increased. Basically sunlight stays same, roses dercrease and the rest increase.

Does a snake eat a beaver?

Answers

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

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

Answers

Answer:

(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 statements is NOT one of the ideas Lamarck had regarding evolution ?

ANSWER ASAP

Answers

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)

Describe the planet in the movie Wall-E

Answers

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.

Final answer:

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.

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

Answers

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.

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

Answers

Answer:

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 composition

The 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.

Which part of a sperm cell is responsible for providing the cell's energy?

A.
round head

B.
mitochondria section

C.
flagellum

D.
cell wall

Answers

B. The mitochondria section stores all the cells energy

Which part of the membrane helps chemical reactions happen?
O
A. Nucleic acids
B. Enzymes
C. Fatty acids
O
D. Phospholipids

Answers

the answer is B. Enzymes :)

Answer:

it is enzymes

Explanation: i just answered it

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

Answers

Answer: A. coding DNA

Explanation:

Which of the following terms best describes a black bear

Answers

Herbivore, they both eat animals and plants

Buenos Aires' largest shopping mall is called____
Avenida Santa Fe
Patio Bullrich
Abasto Shopping
EXICAL

Answers

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 virus has a structure that includes an outer lipid bilayer that is studded with proteins?





Answers

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.

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

Answers

Answer:

E. Infertility

Describe the importance of biomes such as forests, freshwater, and marine biomes? How have human actions affected these biomes? (Site 1)

Answers

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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