In which era were the first dinosaur fossils found?

Answers

Answer 1

Answer:

1677

Explanation:

Robert Plot discovered the first dinosaur bone, they thought It was just a human bone but later they found out it was a dinosaur bone.


Related Questions

Match the Macromolecule with its corresponding monomer. Carbohydrate Lipid Il Protein Nucleic Acid :: Glucose :: Fatty Acid :: Amino Acid :: Nucleotide​

Answers

Answer:

carbohydrate-gluclose

lipid-fatty acid

protien-amino acid

nucleic acid-nucleotides

Explanation:

I just took a biology class this year:)

The correct match of macromolecules with their corresponding monomer is:

Carbohydrate :: GlucoseLipid :: Fatty AcidProtein :: Amino AcidNucleic Acid :: Nucleotide

WHAT ARE MACROMOLECULES:

Macromolecules are large organic compounds also called biomolecules. They are polymeric compounds made up of monomeric units. The four major macromolecules are as follows: proteins, lipids, carbohydrates and nucleic acids.

Proteins: Proteins are macromolecules made up of monomers called AMINO ACIDS.

Carbohydrates: Carbohydrates are macromolecules made up of monomers called GLUCOSE, which is a monosaccharide.

Lipids: Lipids are macromolecules made up of monomers called FATTY ACIDS.

Nucleic acids: Nucleic acids are made up of monomers called NUCLEOTIDES.

Hence, in a nutshell, the correct match of macromolecules with their corresponding monomer is:

Carbohydrate :: GlucoseLipid :: Fatty AcidProtein :: Amino AcidNucleic Acid :: Nucleotide

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anyone good at biology need really help on this will be marked brainliest ​

Answers

Answer:

400X (10 x 40 = 400).

Explanation:

:)

Answer:

Should be 400x

Explanation:

Just take the power of the objective (40x) and multiply by the power of the eyepiece, usually 10X.

18. Which activity is not a response of human white blood cells to pathogens?
1. producing antibodies
2. identifying invaders to be destroyed
3. removing carbon dioxide
4. engulfing and destroying bacteria

Answers

Answer:

The answer is option 3.

Explanation:

White blood cells are not responsible for removing carbon dioxide.

White blood cells contain lymphocytes and phagocytes.

Lymphocytes produce antibodies to attack pathogens while phagocytes engulf pathogens.

Removal of carbon dioxide is not a response of human white blood cells to pathogens. Thus, the correct option is 3.

What are the white blood cells?

White blood cells are also called as leucocytes. These are the specialized cells of the immune system which are involved in the protection of the body against both the infectious disease and foreign invaders.

All white blood cells in the body are produced and derived from that of multipotent cells in the bone marrow which are known as hematopoietic stem cells. Leukocytes are the cells which are found throughout the body, including that of the blood and lymphatic system.

Therefore, the correct option is 3.

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I need to know everything about reproduction and variation for a test. YEAR 9

Answers

You could’ve attached a question or a picture or something
If you go to physicsandmathstutor.com they have an amazing section with detailed notes which are also concise and to the point.

When will an atom give up electrons?
When more than half of the outer energy level is filled
When the n=2 level is full
When less than half of the outer energy level is filled
When the outer energy level is full

Answers

Atoms give up electrons when less than half of the outer energy level is filled, forming positively charged ions. Noble gases with a full outer shell do not easily give up or accept electrons.

An atom will give up electrons when less than half of the outer energy level is filled. In chemistry, valence electrons are electrons in the outermost shell or energy level of an atom. Atoms tend to gain or lose electrons when the valence electron shells are not filled. When atoms lose their valence electrons, they become positively charged ions. An ion is a positively or negatively charged atom or group of atoms. For instance, sodium atoms give away one electron to form sodium ions with a positive charge because the outermost shell of sodium has only one electron, which is less than half the number needed to fill the shell entirely. When more than half of the outer energy level is filled, atoms are reluctant to give up their valence electrons, which is why noble gases do not form chemical bonds easily. When the outermost shell of an atom is full, it is stable, which is why noble gases do not give up or accept electrons quickly. Therefore, an atom will give up electrons when less than half of the outer energy level is filled.

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Which fossil fuel puts the least amount of sulphur dioxide into the atmosphere?
a
Petroleum
b
Linoleum
C
Coal
d
Natural Gas

Answers

Answer:

b.Linoleum

Explanation:

hope that helps

all you need is in the photo ​

Answers

Answer:

the color and design

Explanation:

I think those are the differences

To meet a high demand of energy, a new hydroelectric dam is being proposed in an area. Which of the following describes a possible risk?

C. The Dam would produce renewable energy

A. the dam produces no radioactive waste

B. the dam produces no toxic hydrocarbons

D. the dam could harm or destroy aquatic wildlife.

Answers

the answer would have to be D.

The statement which describes a possible risk due to the construction of a new hydroelectric dam in an area is the dam could harm or destroy aquatic wildlife.

What do you mean by Hydroelectric dam?

A Hydroelectric dam may be defined as a dam is a large, man-made construction built to contain some body of water to handle river flow and regulate flooding.

The hydroelectric power dams are responsible for the utilization of the land for construction and due to this, it impacts the wildlife of that particular area.

Apart from this, it changes the habitat for those aquatic organisms which are better adapted before the construction of new hydroelectric dam.

Therefore, the statement which describes a possible risk due to the construction of a new hydroelectric dam in an area is the dam could harm or destroy aquatic wildlife.

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PLZ ANSWER!!! I NEED HELP LIKE ASAP!!!

Answers

Answer:

I believe the answer is B

Explanation:

The answer is C hope this helps

If a race car's velocity is increasing rapidly, we
would notice
its velocity-time graph.
on
A a steep positive slope
B a shallow positive slope
C a shallow negative slope
Da steep negative slope

Answers

A. A steep positive slope. Since the speed is going UP, it is positive. Since it is happening quickly, the line will jump steeper. Hope that helps!

If a race car's velocity is increasing rapidly, we would notice its velocity-time graph on a steep positive slope, therefore the correct answer is option A.

What is Velocity?

The total displacement covered by any object per unit of time is known as velocity.

acceleration = slope of the velocity time graph

As per the given problem statement If a race car's velocity is increasing rapidly, we would notice its velocity-time graph on a steep positive slope because the rapidly increasing speed represents.

To determine the object's acceleration, utilize the positive acceleration and the slope of the velocity time graph.

Thus, the correct answer is option A.

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how many half-lives occur in 4 hours?
A. 1
B. 2
C. 3
D. 4

Answers

I believe the answer is C

Rapid reproduction is an advantage of which process? gamete formation sexual reproduction asexual reproduction chromosome duplication

Answers

Answer:

Rapid reproduction occurs in mitosis,

Asexual reproduction where the chromosomes are duplicated.

Explanation:

Asexual reproduction usually occurs in about 2 hours.  This facilitates a more rapid response to repair damage and grow other similar/duplicate cells like skin and red blood cells.

Sexual reproduction is meosis, and takes more steps, more complex and takes longer.  Provides for diversity in genetics etc.  Multiple error checking during the process

Rapid reproduction is an advantage for Asexual reproduction as in this type of reproduction, the organism undergoes reproduction to produce offsprings within a small time thus requires rapid reproduction. Thus, the correct option is C.

What is Asexual Reproduction?

Asexual reproduction is a type of reproduction which does not require gamete formation. In this process, a single parent cell divides to form two or more daughter cells by the division through mitosis.

Bacteria such as E.coli undergoes reproduction to form new generation of offsprings within a few minutes and thus this reproduction requires rapid division of the DNA to form daughter cells and thus rapid reproduction is an advantage of asexual reproduction.

Therefore, the correct option is C.

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°ω° please help, giving brainliest °ω°

Answers

I think it’s A, because da big fluff needed to be warm :))

Answer:

D.) Environment was hot and dry.

Explanation:

The question says "found in texas"

Texas is not:

coldwarm and wetflooded

What happens to the other strand of the DNA molecule while the coding strand is making RNA?

Answers

Answer:

he other strand, the coding strand, is identical to the RNA transcript in sequence, except that it has uracil (U) bases in place of thymine (T) bases. ... If the gene that's transcribed encodes a protein (which many genes do), the RNA molecule will be read to make a protein in a process called translation.

Explanation:

Answer: Transcription is the first step of gene expression. During this process, the DNA sequence of a gene is copied into RNA. ... The other strand, the coding strand, is identical to the RNA transcript in sequence, except that it has uracil (U) bases in place of thymine (T) bases.

Hope this helps (:

Give me an example of each by editing this DNA Below:
GAA TAC CGG TAG CGA

Answers

Answer:

could you specify your answer please

Explanation:

DNA: GAA TAC CGG TAG CGA
RNA: CTT AUG GCC AUG GCU
AA: leu. Met. Ala. Met. Ala
I hope this help

what is light please tell me​

Answers

light is a form of energy which gives us the sensation of vision.

hope

this

helps

Answer:

light is light i think or its probably chicken

Explanation:

If half of the sons are colorblind, what is the genotype of the mothe?

Answers

Answer:

not colorblind

Explanation:

hope it helps

the mother is not colorblind since half of their sons are

Which choice best descibes the cell cycle?

A: Cells grow and devolp during interphase. Cells reproduce during the mitotic phase.

B: Cells grow and devolp during the mitotic phase. Cells reproduce during the interphase.

C: The nucleus of the cell divides during interphase. The cytoplasm divides during the mitotic phase.

D: The nucleus of the cell divides during the mitotic phase. The cytoplasm divides during the interphase.

Answers

Answer:

i think its a im mot sure thi

In photosynthesis, chlorophyll traps _____.

Answers

Answer:

In photosynthesis, chlorophyll absorbs energy to transform carbon dioxide and water into carbohydrates and oxygen. Chlorophyll is a molecule that traps light. Good luck :)

Explanation:

If a scientists wants to test out a new pill that
claims to end a headache in 15 min, what
would be the:
IV:
DV:
CG:
EG:
2 CVs:

Answers

The 2cvs are no hablas ingles

When an organism excretes waste, can a plant directly use it as fertilizer (nitrogen source)? Why or why not?

Answers

Yes

Because the organism waste contains UREA and urea is rich in nitrogen and it can be used as fertilizer for plants. Bc plants need nitrogen.

When a life form excretes waste, plants can use it directly as fertilizer. As a result, it's correct.

What is a fertilizer?

A fertilizer is any natural or synthetic material that is applied to soil or plant tissues to provide plant nutrients.

Fertilizers can be distinguished from liming materials or other non-nutritional soil amendments. There are numerous fertilizer sources, both natural and man-made.

It should be noted that nitrogen is a critical macronutrient required by many organisms, including plants. It is critical to their development.

Waste from organisms is permitted on plants, and this is necessary for their growth. As a result, when an organism excretes waste, the nitrogen content of the waste can be found in the waste and used as fertilizer for the plant.

Thus, the given statement is true.

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The stage of the cell cycle when DNA replication occurs is _______________.
a
prophase
b
interphase
c
telophase
d
anaphase

Answers

Answer:

b.Interphase

Explanation:

The DNA replication of a cell takes place during the S phase or the Interphase.

Answer:

correct answer: b

Explanation:

I need an example of dehydration synthesis

Answers

Answer:

Polymerization reactions

Explanation:

monomer units condense together to form polymers.

True or False. Our body needs and uses large amounts of the 3 macronutrients; carbohydrates proteins and fats.

Answers

Answer:

it is false

Explanation:

Answer:

I think it is true maby dont hold me to it

as you adjust the independent variable in an experiment, which variable do you measure ?

Answers

Answer:

he dependent variable (height) depends on the independent variable (age).

Explanation:

An easy way to think of independent and dependent variables is, when you're conducting an experiment, the independent variable is what you change, and the dependent variable is what changes because of that

Mitosis maintains complex organisms by which of the following processes?
A) the removal of waste from the body
B) the exchange of gas with the environment
C) the formation of sperm and egg
D) the healing of a cut after an injury

Answers

Answer:

In multicellular organisms, individual cells grow and then divide via a process called mitosis, thereby allowing the organism to grow. ... Cellular division and differentiation produce and maintain a complex organism, composed of systems of tissues and organs that work together to meet the needs of the whole organism.

Explanation:

C. The formation of sperm and egg.

CAN someone please help thx!!

Answers

Answer:

I think.... option A is correct

What would you tell the patient? ​

Answers

The answer is D I believe because their cancer is no longer spreading
D. For these type of questions always copy them an try an look on quizlet !

Please answer only the first 2.

Answers

Answer:

Co2 and H20

Explanation:

(won't explain because ur in a rush!!!)

Answer: carbon dioxide and water
Hope this helps :D

place the levels of an ecosystem in the correct order from smallest to largest

Answers

Answer:

this is largest to smallest just do the opposite of this

biosphere, biome, ecosystem, community, population, and organism.

Explanation:

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