Which statement can be supported by the fossil record? (HINT:to be supported by the fossil record, you need evidence)

1. Humans have lived on earth throughout geologic history
2. The organisms on Earth have not changed
3. All plants and animals on earth today have always existed
4.Dinosaurs existed on Earth for more than 544 million years.

Answers

Answer 1
None of the above. Modern humans have only been around for 200 - 300,000 years. Organisms have been evolving for as long as there’s been life on the Earth (contradicts 2 & 3). Dinosaurs were around for only for about 165 million years.

Related Questions

When small bits of a sponge are broken off—often by currents or by predators—they can float to new regions and regenerate as new sponges. A ladybug must find a mate before it can reproduce. One disadvantage of the sponge's method of reproduction is that A. its offspring have little genetic diversity. B. it requires more energy. C. its offspring have greater genetic diversity. D. it must devote a greater portion of its life cycle to reproduction.

Answers

Answer:

A

Explanation:

What genotypes are observed when you cross a Dd parent
with another Dd parent?
a. 100% DD
b. 75% DD and 25% dd
c. 50% DD and 50% dd
d. 25% DD, 50% Dd, 25% dd

Answers

Answer:

it is D. 25%DD ,50%Dd ,25%dd

If both the parents are heterozygous (Dd), the resulting offspring are 25%DD, 50%Dd, and 25%dd. So, the correct option is D.

What do you mean by genotypes?

Genotypes may be defined as the ultimate combination of alleles of those genes which are selected for our study.

Here, both the parents carry the genotype Dd, when Dd is crossed with Dd, the resulting offspring are 1DD, 2Dd, and 1dd.

Therefore, if both the parents are heterozygous (Dd), the resulting offspring are 25%DD, 50%Dd, and 25%dd.

To learn more about Mendel's Law, refer to the link:

https://brainly.com/question/13954468

PLEASE HELP ASAP!!!
What do the Roman numerals on the side of a pedigree mean?
a the level of organism
b the generation
c the number of siblings
d how many individuals carry a specific trait

Answers

Answer:

B, the generation.

B. The generation

Is the correct answer

What does the xylem tissue of a plant transport?

Answers

Xylem tissue transport water and nutrients dissolved in it.

Can someone please check if the labels and everything on this diagram is correct.

please help me, it's urgent. I will mark brainliest, no links please​

Answers

The cell wall should be the outer layer of the cell. Where the flagellum connect to.

Explanation:

I think u are trying to make the structure of bacteria and in my science book I have this figure and I thought that I should help u

Segment of chromosome is placed in the reverse order.
Translocation
Duplication
Deletion
Inversion

Answers

Answer: Inversion

Explanation:

what type of organ is an onion?

Answers

Onion is not an organ its a vegetable.
So you mean organism?

Two type O people are married. Select each blood type that is possible for their natural children.

A

B

AB

O

Answers

if both parents have type o, the child will also have type o, if parents are both type O the children will only inherit type O since type A and B are dominant over type O

Answer:

Type o is the most possible

Explanation:

Let's use a punnet square. A and B are dominate, while O is recessive. If one parent has A and the other O, then most likely the blood type is O. But since both are o, then it's only possible for O.

Sorry if it is incorrect, I am only 4th grade :(

what is the order of magnitude of the DNA?

Answers

An order of magnitude estimates the approximate value or size of something in base-ten units such as, “in the millions.” For example, our national debt is “in the ten-trillions” of dollars which means it can be anywhere from 10 trillion to 99 trillion. Order of magnitude is an especially important concept in science.

Consider two ocean waves A and B. A has an amplitude of 5 Units and B has an amplitude of 12 units. Compare their energy

Answers

Answer:

12 units.

Explanation:

There is a direct relationship between amplitude and energy. if amplitude of the wave increases, the wave has more energy while on the other hand, if the amplitude decreases, the energy of the waves also decreases. Direct relationship means one increases the other automatically increases and vice versa. So due to this direct relationship, the wave having 12 units amplitude has higher energy as compared to the wave having amplitude of 5 units.

What effect does deforestation have on the environment?
A increased oxygen in the atmosphere
B increased carbon dioxide in the atmosphere
c decreased oxygen in the geosphere
D decreased carbon dioxide in the atmosphere

Answers

Answer: its definitely B or C i think that it might be C

Explanation:

As more trees are removed there is less trees to remove the Carbon Dioxide from our atmosphere.

This means that there are less trees producing Oxygen which almost all living organisms need to survive which will decrease the amount of Oxygen in The Geosphere

The Geosphere is any of the almost spherical concentric regions of matter that make up the earth and its atmosphere, as the lithosphere and hydrosphere.

PLEASE HELP ME ON BOTH QUESTIONS ASAP!!!!!!!!!!!!!

Answers

B, is the answer the first one is false

Name one type of substance that is taken into a root hair cell using active transport.

Answers

Answer:

The substance taken in is mineral salts.

One type of substance that is taken into a root hair cell using active transport is nitrate ions, calcium ions, etc., as these are the ions that are not easily passed through the cell membrane and are taken into the cell by spending energy.

What is the significance of the active transport in the cell?

Active transport in the cell that requires energy for the transportation of the substances, and active transport is significant because it allows cells to maintain the necessary concentration gradients. Mineral ions such as nitrate and calcium ions, which are required for plant growth, are actively transported in root hair cells.

Hence, one type of substance that is taken into a root hair cell using active transport is nitrate ions, calcium ions, etc., as these are the ions that are not easily passed through the cell membrane and are taken into the cell by spending energy.

Learn more about the active transport in the cell here.

https://brainly.com/question/19098496

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Photosynthesis takes place in leaves. Leaves contain that allow for the exchange of gases during the process, and also help with the process of .

Answers

Answer:

The correct answer is - stomata, transpiration.

Explanation:

Photosynthesis is the process that uses light to convert CO2 and water to produce sugar and oxygen. The carbon dioxide is taken up by the little holes-like structures present on the spongy layer of the leaves called stomata. These structures are used for gaseous exchange, taken up oxygen, and releasing oxygen.

Stomata also help in releasing water vapors from the aerial parts during the process of transpiration to prevent the plants to burn in a dry environment and wind.

A virus is a _____. A) intracellular parasite B) consumer C) Host D) Producer

Answers

Answer:

A

Explanation:

What type of pollution occurs when live or dead organisms are added to water supplies?

Answers

Answer:

Water Pollution

Explanation:

water pollution is the contamination of water bodies, usually as a result of human activities. water bodies include four examples Lakes, rivers, oceans, Aquifers and groundwater.

Cuál de las siguientes es una función de ARNm? *
A. Crear nuevas proteínas
B. Transmitir mensajes
C. Almacenar información sobre tu cuerpo
D. Hacer copias de ADN

Answers

Answer:

A. Crear nuevas proteínas

A bird that can easily outcompete other birds for food and that can produce many eggs has a high

Answers

I need more info to solve this qustion
Has a high relative fitness?

please i need your help i cant fail this class

Answers

Answer:

the answer is D

Explanation:

in  the northern hemisphere is tilted towards the sun . in A, C and D the northern hemisphere tilts away from the sun. hope this helps

What happens during nitrogen fixation

(help this is due today)

Answers

Nitrogen fixation is the process by which atmospheric nitrogen is converted by either a natural or an industrial means to a form of nitrogen such as ammonia. In nature, most nitrogen is harvested from the atmosphere by microorganisms to form ammonia, nitrites, and nitrates that can be used by plants.

15 POINTS AND BRAINLY FOR 1 MULTP. CHOICE QUESTION

Answers

The correct answer is the third choice

When we breathe in blank goes into our blank Where it is picked up by blood cells. From the lungs the blood travels to the blank side of the heart. The oxygenated blood first enters the blank blank after the heart beats the blood is pushed into the blank blank the heartbeats again and the blood goes into the blank from there the blood travels throughout the body delivering blank and blank traveling around our body our red blood cells travels to the human bodies tiniest Blood vessels called blank which connects the arteries to the blank the blank or connected to every cell in our body and gives each cell blank while taking away blank blank this dark blue deoxygenated blood then travels back to the blank side of the heart through the blank the blood enters the blink blink first then the heartbeats sending the blood into the blank blank the heart beats again pumping the blood back to the his lungs where blank blank is exhaled and the circulatory process starts all over
Words may be used more than once
Veins
Right
Left
Arteries
Carbon dioxide
Lungs
Nutrients
Capillaries
Oxygen
Ventricle
Atrium

Answers

Answer:

I think the answer here is Right

A simplified carbon cycle is depicted here. The release of carbon dioxide into the atmosphere can contribute to global warming.
Which statements describe the processes of forest fires, fossil fuel combustion, and plant respiration? Select ALL that apply.
A)
They occur under anaerobic conditions primarily.
B)
They are all directly caused by human intervention
They are primarily the result of microbial activity.
Eliminate
D)
They all occur in the presence of oxygen to release carbon dioxide.
E)
They each convert organic carbon-based molecules into carbon dioxide.

Answers

Answer:

i can help 123 and help with

A simplified carbon cycle is depicted here. The release of carbon dioxide into the atmosphere can contribute to global warming. The statements describe the processes of forest fires, fossil fuel combustion, and plant respiration are they occur under anaerobic conditions primarily, they are all directly caused by human intervention, and they are primarily the result of microbial activity. Thus, option A, B, and C are correct.

What is carbon dating?

Carbon dating or radiocarbon dating has been known as the method to identify the age of any substance by using the properties of radiocarbon. The method has been developed in late 1940 at university of Chicago.

Carbon dating has been the process by which we can find the extrapolated data which stored by tree rings can be identified which thousands year old.

Carbon has been known as the one of the chemical elements.  Along with hydrogen, nitrogen, oxygen phosphorus and sulfur carbon has a building block of biochemical molecule ranging from fats, proteins and carbohydrates.

Therefore, A simplified carbon cycle is depicted here. The release of carbon dioxide into the atmosphere can contribute to global warming. The statements describe the processes of forest fires, fossil fuel combustion, and plant respiration are they occur under anaerobic conditions primarily, they are all directly caused by human intervention, and they are primarily the result of microbial activity. Thus, option A, B, and C are correct.

Learn more about carbon on:

https://brainly.com/question/13719781

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Why are the algae that live on snow able to survive high in the Mountains in early summer?

Answers

Answer:

The spores usually have thick walls and large amounts of lipid reserves, polyols and sugars. These spores are able to withstand sub-zero temperatures in winter and also high soil temperatures and desiccation in summer which would kill normal vegetative cells.

Explanation:

ik thers already a awnser just need points lol

3. Which parts are located within the chloroplast? (Select all that apply.)
stroma
granum
xylem
phloem

Answers

Explanation:

As I think Stroma and granum are the correct answer.

There are two distinct regions present inside a chloroplast known as the grana and stroma. Grana are made up of stacks of disc-shaped structures known as thylakoids. The grana of the chloroplast consists of chlorophyll pigments and are the functional units of chloroplasts.

What is Crossing over

Answers

Answer:

Crossing over is the swapping of genetic material that occurs in the germ line. During the formation of egg and sperm cells, also known as meiosis, paired chromosomes from each parent align so that similar DNA sequences from the paired chromosomes cross over one another.

Explanation:

Answer: Crossing over is the swapping of genetic material that occurs in the germ line. During the formation of egg and sperm cells, also known as meiosis, paired chromosomes from each parent align so that similar DNA sequences from the paired chromosomes cross over one another.

Explanation:

Which statement best describes the motion of the plates along these boundaries that causes the earthquakes? The plates push apart from each other with no subduction. Subduction occurs with the less-dense plate sinking below the other plate. Subduction occurs with the more-dense plate sinking below the other plate. The plates smash together with no subduction.

Answers

Answer:

D). The plates smash together with no subduction.

Explanation:

As per the question, the last statement most adequately demonstrates the movement of plates i.e. 'the plates hit together without any detraction' through concurring boundaries causing the earthquakes to take place. The continuous smashing of tectonic plates with one another leads to the development of a pressure towards both the rock layers by the time this stress is released through a shaky or convulsive movement of the Earth. Thus, option D is the correct answer.

HELP ME PLEASE AND NOOOOO LINKSS

a, b, c, or d?

Answers

Answer:

A. ECOLOGICAL FOOTPRINT

Explanation:

hoped this helped :)

Which is more harmful to otters and other animals, trapping or pollution /habitat destruction ?

Answers

Answer:

habitat destruction

Explanation:

it would be hard for them to be able to make another habitat all over again after all of the hard work that was put in to it but yet again trapping and taking away the animal from their family is very hard to

name the process that has taken place when u put pebbles in water​

Answers

The process is called erosion
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