Trilobites
Trilobites were crab-like animals
that lived in ancient seas.
Scientists have discovered many
trilobite fossils all over the world.
However, the fossils only appear
in rocks that are at least 250
million years old. In more recent
rocks, their fossils are absent.
1. What conclusion would you
draw about trilobites based on
their appearance and
disappearance in the fossil
record

Answers

Answer 1

Answer:

The trilobites probably disappeared because either: A) they evolved into something else, or B) they died out due to the amounts of land rising out of the ocean.


Related Questions

The theory of spontaneous generation held that living could arise from nonliving matter and that such processes were commonplace and regular. Observe Pasteur’s experiment. Does his experiment support or weaken the idea of spontaneous generation?

Answers

Answer:

It weakened the idea of spontaneous generation

Explanation:

I had this question on my test last week

why is it important to ask questions

Answers

Answer:

It helps you uncover the challenges you're facing and generate better solutions to solve those problems. We're all spending too much time and energy solving the first iteration of a challenge with the first idea we have. That's both limiting and counterproductive.

Explanation:

Without(blank)
a species is not able to survive.
A. genetics
B. reproduction
C. kingdoms
D. bacteria

Answers

Answer:B

Explanation:because of the speakeasies doesn’t reproduce than there will be no more of that said spices.

Answer:

reproduction

Explanation:

12547689 x 0 = 0

what is fart? explain and what do you call it?

Answers

Answer:

Farts — also called flatus (say: FLAY-tuss) or intestinal (say: in-TESS-tuh-null) gas — are made of, well, gas! When you eat, you don't swallow just your food. All of these gases in the digestive system have to escape somehow, so they come out as farts! Gases are also what can make farts smell bad.

A ball at rest starts rolling down a hill with a constant acceleration of 3.2 meters/second2. What is the final velocity of the ball after 6.0 seconds?

Answers

Answer:

19.2 meters/second^2 would be the correct answer.

Explanation:

The number of chromosomes that result from mitosis is _____.

the same as original cell
double the original cell
half of the original cell
none of the above

Answers

it would be the same as original cell.

Answer:

Hello! This answer would be the same as original cell!

Explanation:

I really hope this helps!

You are standing by a cliff far away from the ocean. You see a sedimentary layer
with shells in it. You are told the shells are from oceanic organisms. How do you
think this layer formed?

Best answer gets brainliest!

Answers

Answer:

oldest layer on the bottom and newest on the top

Explanation:

How do animals return water to their environment from their bodies?

Answers

Answer:  Animals excrete water by respiration and by passing urine.

cell differentiation is most directly regulated by​

Answers

ATP because if ur difference gets the cell by others then it will directly hit ATP making the microscopic version very big

Is made to represent a real object or system
Map
Chart
Table
Line graph
Model

Answers

The answer is Model. Hope this helps!!

List the celestial bodies from smallest to largest based on their actual size.
Plzzzzzzzzzzz give me the correct answer ASAP

Answers

Answer:

Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, and Jupiter.  Is smallest to largest.

Explanation:

Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, and Jupiter Is smallest to largest.

What are celestial bodies?

A celestial object is an observable cosmic phenomenon that happens naturally. The terms "object" and "body" are frequently used synonymously in astronomy.

A celestial object, on the other hand, is a complex, less cohesively bonded structure that could include numerous bodies or even other objects with substructures, as opposed to a celestial body, which is a single, tightly bound, adjoining entity. Space objects like the Sun, planets, moons, and stars are referred to as celestial bodies or heavenly groups.

They are normally quite far away from us and are a part of the vast cosmos we inhabit. Such objects are scattered throughout the majestic night sky, and when viewed through a telescope, they reveal intriguing worlds of their own.

Therefore, Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, and Jupiter Is smallest to largest.

To learn more about celestial bodies, refer to the link:

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Which is the region of actively dividing
cells at the tip of the stem?

Answers

Answer:apical meristem

Explanation:

A paper airplane thrown hard has _______ then one thrown lightly.
A. less gravity
B. less thrust
C. more thrust
D. more gravity

Answers

C because it is thrown harder and has more thrust

Which statement identifies an example of a genetic factor that could influence the growth or development of an organism created by an environmental factor? the lack of available sunlight for a small sapling to grow an increased amount of rain causing flooding in a local river fertilizer creating a mutation among a farmer's crops overcrowding of a local deer population resulting in fewer resources available

Answers

Answer:

fertilizer creating a mutation among a farmer's crops

Explanation:

A genetic factor is one that affects the gene or genome of an individual organism. This genetic factor often influences the observable trait called PHENOTYPE of the organism. In this case, an example of a genetic factor that could influence the growth or development of an organism created by an environmental factor is the "fertilizer creating a mutation among a farmer's crops"

The fertilizer represents the environmental/chemical factor which is creating the genetic factor (mutation) that will eventually influence the growth or development of the crops.

RNA moves genetic information in DNA from the ___ to ___ so that proteins can be produced.

Answers

Answer: dna to rna

Explanation: science class

What is a component of amino acid not contained in starch?

Amino acids contain hydrogen.

Amino acids contain nitrogen.

Amino acids contain oxygen.

Amino acids contain carbon.

Answers

Answer:

Amino acids contain nitrogen.

Why do different individuals of the same species have different traits?
OA. Individuals have differences in their genes that result in protein variations.
OB. Individuals have proteins that produce genes with completely different functions from other individuals.
OC. Individuals have different proteins that cause variations among their genes.
OD. Individuals have different genes that produce proteins with completely different functions from other individuals.

Answers

answer : a

explanation : a species shares ALMOST all of the DNA with each other with just small differences

Different individuals of the same species have different traits because individuals have differences in their genes that result in protein variation. Hence, option A is correct regarding variation.

Why do individuals of different species exhibit different characteristics?

The species is a group of individuals that can reproduce among themselves and can produce fertile offspring. Individuals of a species have genetic variation among them as they are formed by the process of meiosis.

In meiosis, genes cross over and recombination takes place, resulting in the formation of offspring that show some variation from their parents. These characters or traits are encoded in the gene. When these are expressed in the process of translation, the variation is seen.

This genetic variation doesn't make them reproductively isolated. Example: In humans, there are variations based upon the skin color, face size, height, etc. The variation is seen in genes among individuals but not genes are different.

Hence, different individuals of the same species have different traits because individuals have differences in their genes that result in protein variation. Hence, option A is correct regarding variation.

Learn more about the traits here.

https://brainly.com/question/1463051

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A glucose molecule is to carbohydrates as a ___ is to nucleic acids.

Answers

Answer:

nucleotides

Explanation:

glucose is a monomer of carbohydrates so we just have to figure out what the monomer for a nucleic acid is.

As a Nucleotide is to nucleic acid

Traditional chemotherapy drugs target cell processes that then halts cell division or results in cell death. Thus, these drugs are cell poisons, causing multiple side effects. List some of the cell processes that these Drugs often target

Answers

Answer:

Cell division

Replication

Explanation:

Traditional chemotherapy drugs target cell metabolic processes which enabled it to thrive under certain conditions and then halts such processes such as cell division or results in cell death.

Thus, these drugs are cell poisons, causing multiple side effects. Some of the other cell processes that these cells target also include replication and motility.

What process do plants use to remove carbon dioxide from the air?
nitrogen cycle
water cycle
photosynthesis
respiration

Answers

Plants use photosynthesis to remove carbon dioxide from the air.

Answer:

Photosynthesis

Explanation:

Who experimented with oil and water layers in 1917

Answers

Answer:

Figure 1. Benjamin Franklin of Philadelphia, L.L.D., F.R.S., in between 1763 and 1785, during the period when he carried out his experiments of oil on water

Explanation:

Answer:

benjamin franklin

Explanation:

because i aint never seen two pretty best friends, its always one of em gotta be ugly

Water pressure
A. is less than air pressure for the same volume of air
B. decreases with depth
C. is about twice as much on a diver at 10m as at the surface
D. is unaffected by atmospheric pressure

Answers

Answer:

lAnnswer letter A.

is less than air pressure to the same volume of air

The answer is A! Water pressure is less than air pressure for the same volume of air

3. What are the advantages of using renewable energy sources to generate electricity?
a. Chemicals are released into the atmosphere.
b. It is expensive to maintain energy facilities.
c. It is produced by sustainable substances.
d. They are much less expensive than nonrenewable energy sources.

Answers

i think the answer is a

With respect to energy, Earth is a........
closed system
Integrated system
layered system
open system

Answers

Closed system because I used safari for 5 minutes!

Which question can be used to evaluate reliability of a source?

“Do these results support the author's own opinion?”

“Is this data challenged by anyone in the public?”

“Is this research relevant to me?”

“Who was paid to do this research?”

Answers

Answer:

Do these results support the Author's own opinion?

Explanation:

The question can be used to evaluate the reliability of a source is Do these results support the author's own opinion?

In sources (books, articles, etc), reliability implies the information of a source can be trusted. This occurs if:

All the information is based on factsThe information is not manipulated by the author's opinion or interests

In this context, it is expected the information of the source is objective rather than influenced by the author's opinion. Therefore, one way to check the reliability of a source is "Do these results support the author's own opinion" because if the information is manipulated by a personal opinion, the source is not reliable.

Also, other questions are not appropriate because they are related to other aspects such as relevance, not reliability.

Learn more in: https://brainly.com/question/11616885

which is not an example of a molecule?
a)NCI3
b)O3
c)H2O2
d) F

Answers

The answer for that is C
I believe the answer is c

Specific proteins produced in a cell are directly related to the A. Number of mitochondria in the cell. B. Sequence of sugars and phosphates in the cell. C. Type of ribosomes in the cell. D. Sequence of nucleotides in the DNA of the cell.

Answers

Answer:

D. Sequence of nucleotides in the DNA of the cell.

Explanation:

Proteins are a type of biomolecules in living systems responsible for many phenotypic characteristics in organisms. Proteins are synthesized by a process called gene expression, which encompasses transcription and translation.

Using the central dogma of biology to trace, DNA (genes) contains information that encodes the production of proteins in the body. Therefore, the sequence of nucleotide bases in the DNA of a cell determines the sequence of mRNA that will be produced during transcription and ultimately, determines the specific type of proteins (amino acid chain) that will be produced in a cell during translation.

Identify 3 uses of ATP in a cell

Answers

Answer:

ATP is consumed for energy in processes including ion transport, muscle contraction, nerve impulse propagation, substrate phosphorylation, and chemical synthesis

Explanation:

Adenosine triphosphate (ATP) is a small molecule that acts as a coenzyme within a cell.

The main role of ATP is to provide energy. Below are the ways it provides energy which can described in an exam.

1) A source of energy.

2) An ATP molecule releases approximately 30kJ (mol^-1) of energy

3) Energy from an ATP molecule is released in small quantitites to prevent damage to the cell

4) Energy released is used for metabolism in the cell. Other reactions that require energy from ATP include; active transport/ muscle contraction/ glycolysis.

Identify the labeled structures.
A:
B:
C:
D:
A
E:
lables: cell wall, chloroplast, cytoplasm, endoplasmic reticulum and lysosome

Answers

A endoplasmic reticulum
B chloroplast
C lysosome
D cytoplasm
E cell wall

Answer:

A: D

B: B

C: E

D: C

E: A

Explanation:

How were Redi’s and Pasteur’s experiments different?
A. Redi studied broth, but Pasteur tested meat.
B. Pasteur studied flies, but Redi tested meat.
C. Pasteur tested for microorganisms, but Redi studied larger organisms.
D. Redi tested for microorganisms, but Pasteur studied larger organisms.

Answers

Answer:

C. Pasteur tested for microorganisms, but Redi studied larger organisms. that is the correct answer i promise

Explanation:

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