help me i suck at biology
1.Biological evolution is the change over time of populations of ______ organisms
2.Sometimes, sedimentary rocks are removed by road construction, volcanic eruptions or earthquakes. How might scientists determine the age of fossils found in these conditions?
3.Extinctions can be caused by gradual environmental changes, such as mountain formation, or_____ones, such as volcanic eruptions.
4.During what eon and era did the Silurian period occur? Use the words eon and era in your answer.

Answers

Answer 1
I think the answer is 4

Related Questions

Match each image to the correct cell of the cell cycle I will mark brainiest

Answers

Answer:

Interphase: Lowest pic, left corner.

Cell appears to be in a normal state.

Metaphase: Left, above Interphase.

Chromosomes are beginning to align in the middle of the cell. Spindles form and begin to attach to their centromeres.

Anaphase: Lowest right pic.

The chromatids are pulled away from each other and brought to different sides of the cell.

Telophase: Above Anaphase.

The genetic material is now in its respective side of the cell, which now begins to split into 2. Nucleic membrane begins to form.

Cytokinesis: Above Metaphase.

The clevage furrow is forming and separating the cytoplasm and other organelles in the cells. When done, this will result in 2 identical cells (unless it's meiosis II).

The matching of each image to the correct cell of the cell cycle is as follows:

Interphase: Most Last picture. Metaphase: Third picture. Anaphase: Fourth picture.Telophase: Second picture.Cytokinesis: First picture.

What is the Cell cycle?

The cell cycle may be defined as the entire sequence of events happening from the end of one nuclear division to the beginning of the next. It can significantly be divided into two phases. They are as follows:

Interphase.M-phase (Division phase).

The Interphase of the cell cycle is the longest phase which consists of three phases. They are the G1 phase, S-phase, and G2 phase. In this phase, the cell replicates its genetic content and appears to be in a normal state.

In metaphase, the chromosomes usually align in one plane and form an equatorial plate. Anaphase is the smallest phase of mitotic cell division. In this phase, the centromere splits, and centromeres migrate to opposite poles.

In telophase, two sets of daughter chromosomes reached the opposite poles and are converted into chromatin thread. After karyokinesis, the cytoplasm gets converted into two equal parts. This is known as cytokinesis.

Therefore, the matching of each image to the correct cell of the cell cycle is well described above.

To learn more about Cell cycle, refer to the link:

https://brainly.com/question/7196669

#SPJ2

Which of the following affect change in weather select all that apply

Temperature

Gravitational pull from the moon

Humidity

Heat from the Sun

Wind speed and direction

The amount of earthquakes in an area

The amount of animals in an area

Movement of high and low pressure air

Answers

Answer:

Movement of high and low pressure air

Humidity

Heat from the Sun

Wind speed and direction

Humidity

Temperature

Temperature
Humidity
Heat from the sun
Wind speed and direction
Movement of high and low pressure air
Hope those are correct :)

please put these from most simple to most complex :D please an dthank you <3

Answers

1. Cell
2. Tissue
3. Organ
4. Organ system
5. Organism

Answer: the order from least to most complex (smallest to largest?): cell, tissue, organ, organ system, organism.

Explanation: Cells make up tissue, tissue like muscle tissue makes up organs, organs like your stomach make up organ systems, organ systems like your heart, lungs, brain and stomach working together make up an organism, organisms like frogs, dogs, humans, horses, single-celled bacteria, plants, etc., make ecosystems, and ecosystems make environments, and environments make the world!

Hope this helps, if not comment below please!!!

Which country has the longest coast?

Australia

Canada

United States

Namibia

Answers

Answer:

Canada's

Coastline: Canada's coastline is the world's longest, measuring 243,042 km (includes the mainland coast and the coasts of offshore islands). This compares with Indonesia (54,716 km), Russia (37,653 km), the United States (19,924 km) and China (14,500 km).

Explanation:

: Which correctly identifies the stimulus and response in a plant? *

A-The plant sees an animal and it flees.

B-The plant is filled with water so it wilts.

C-The plant's roots grow upward when it is placed in the ground.

D-The plant turns toward the sunlight as it moves across the sky.

Answers

Answer:
B

Explanation:

Please help me I will give you the brain thing and extra points. image below part 6

Answers

Answer:

The answer is B, a precipitate is formed :)

Explanation:

lmk if you need me to go in depth :) hope this helps

B dawg akdjfkskxksks

Which of the following describes a joint?
a. connects bone to muscle
b. helps bones move in different directions
c. connects muscle to cartilage
d. connects bone to skin

Answers

Helps bones move in different directions

BEST ANSWER GETS BRAINLIEST

Which statement is true about a euglena, paramecium, and amoeba?

A. They use different structures to control cell activity.

B. They all make their own food by photosynthesis.

C. They all have eyespots to sense light.

D. They use different structures for movement.

Answers

Answer:

d

Explanation:

Name the part of the microscope.

Answers

Answer:

specimen stage and aperture diaghragm

What is the difference between stimulus and response? *

A---A stimulus is how an organism behaves and a response what makes an organism behave.

B---A stimulus is how an organism behaves and a response is how the organism behaves.

C---A stimulus is strictly how plants respond to their environment and a response is strictly how animals respond

D--A stimulus is strictly how animals respond to their environment and a response is strictly how plants respond

Answers

The correct answer choice is A

Which human cells have 23 chromosomes? (Multi question)
1. somatic or body cells
2.egg cells
3.fertilized egg or zygote
4.sperm cells

Answers

2. Egg cells!

Hope this helped you out!

HELP!!!
The organism that does not have a nucleus is called a(n) ___.

A. Bacteria
B. Algae
C. Protazoa

Answers

Answer:

B is the best answer to your question!!!

It’s B) Algae, I’m 100%sure

Hello! Please name this cycle in nature
Photosynthesis
Cellular Respiration
Photosynthesis & Cellular Respiration
Carbon & Oxygen
(I think the answer is Carbon and Oxygen but can anyone verify?)

Answers

Answer:

Photosynthesis and cellular respiration

Explanation:

the plants are using photosynthesis and the humans and animals are using cellular respiration.

what type of cell is a nucleus

Answers

Answer:

nucleus is a eukaryotic cell

Eukaryotic cells is the answer

True or false?

If another person asks me for answers on my work, then it is okay for me to give that information to them. It is not considered cheating since I did my own work.

Answers

Answer:

I mean I agree with that but teachers won't so if you just help them that would be better than giving them the answer because if you do that be considered cheating

Explanation:

If you give them the answers that would be considered cheating but if you helped get the answer without telling them and helped them figure out the answer it wouldn’t be cheating

Check out this short video on Rosalind Franklin, a Jewish woman scientist, whose work never received credit during her lifetime, even though her research is credited to MULTIPLE Nobel Prizes.


Like Marie Curie, she conducted her research using radiation, which likely caused her death from cancer.


Watch the video and then write 1-2 sentences sharing your takeaway from the video- what did you learn or find interesting.

https://youtu.be/BIP0lYrdirI

Answers

Answer: Before DNA, she studied the holes in coal. She captured photograph 51. Franklin loved traveling and backpacking. After DNA, the discoveries continued with tobacco viruses. She worked until the last breath.

Explanation: 1. Before DNA, she studied the holes in coal.

Rosalind Franklin was born in the summer of 1920 in London into an affluent and educated family. From a young age, she showed exceptional talent and creativity that manifested in an early fascination with physics and chemistry. After college, she pursued a doctoral degree from Cambridge, and since this was during World War II, she worked on the porosity of coal for fuel purposes and other wartime devices. Her PhD thesis was titled, “The physical chemistry of solid organic colloids with special reference to coal.” After her PhD, she described herself while asking a friend about job openings as “a physical chemist who knows very little physical chemistry, but quite a lot about the holes in coal.”

2. She captured photograph 51.

You probably know that Watson and Crick published a paper in Nature in April 1953, proposing their model of DNA structure. You also know that they won the 1962 Nobel Prize for that paper. What you probably do not know is that in the same issue of Nature, there was a paper by Franklin and her doctoral trainee, Raymond Gosling. The paper was titled, “Molecular Configuration in Sodium Thymonucleate.”

The paper provided experimental evidence that supported some of Watson and Crick’s purely hypothetical arguments. Specifically, the famous photograph 51 shows that DNA is in fact helical. In the conclusion of the paper she wrote, “Thus our general ideas are not inconsistent with the model proposed by Watson and Crick in the preceding communication.”

Prior to the publication of this paper, photograph 51 was shown to Crick without Franklin’s consent, which is still the topic of a debate over ethics and the Nobel Prize, which is more broadly controversial for rarely recognizing women. However, Franklin was given due credit in Photograph 51, a 2015 play about her life, which starred Nicole Kidman.

3. Franklin loved traveling and backpacking.

Her love for science and discovery did not mean that she did not have hobbies. She traveled frequently to her favorite country, France, and backpacked through the French Alps.

She wrote to her mother in 1946,“I am quite sure I could wander happily in France forever. I love the people, the country and the food.” She also traveled to the US for work, where she had made many friends throughout the years.

4. After DNA, the discoveries continued with tobacco viruses.

Franklin’s colleagues at King’s College were getting more and more hostile towards her, calling her “Rosy” and “Dark lady” behind her back. In 1953, One of Franklin’s colleagues (and a Nobel laureate), Wilkins, wrote in a letter to Watson and Crick:

“I hope the smoke of witchcraft will soon be getting out of our eyes.”

The growing sexism she faced drove Franklin out of King’s college, and she moved to Birkbeck College the same year. At Birkbeck, she distanced herself from DNA and started to work on another fascinating molecule, RNA, a molecule that carries genetic information and just like DNA, is vital to life.

She used X-ray crystallography (a method to look at the shape of very small things like viruses) to explore the structure of the Tobacco Mosaic virus (TMV), an RNA virus that infects tobacco plants. Just a few years into this new arena of research, her team put together a clear model of TMV. Their model suggested that TMV is a barrel-shaped virus made up of proteins, with RNA molecules wrapped in the donut hole like a coiled rope. This work has since been extended to several other viruses, and has been fundamental to our understanding of viruses and RNA.

5. She worked until the last breath.

In 1956, Franklin was diagnosed with ovarian cancer and started chemotherapy. But nothing could stop DNA’s Dark Lady and her love for science. She published seven scientific papers in 1956, and went on to publish six more in 1957, all while she was undergoing chemotherapy. This is how the crystallography pioneer John D. Bernal described Franklin’s final months: “Her devotion to research showed itself at its finest in the last months of her life. Although stricken with an illness, which she knew would be fatal, she continued to work right up to the end.”

Franklin succumbed to cancer in April 1958, but her legacy continues to this day. Photograph 51 is in almost every biology textbook around the world. Perhaps she was not appreciated in her time, but the future won’t forget her.

Answer:

Si hay algo que sucedió entre ustedes raro o un comportamiento que tuviste con esa persona o que te vio hacer asi como le pudieron decir algo de ti que no le gustara a tu amigo hace que se comporte raro contigo

Explanation:

what is the elevation of point C

1400 ft
1500ft
1600ft
1700ft
topographic maps

Answers

The answer is "1500ft"
the elevation of point c is 1500ft

.Which is true?

The highest cliffs in the world are in South Africa.

Coasts and beaches are always sandy.

People are not allowed to build resorts on beaches.

Oystercatchers use their beaks to pry open shellfish.

Answers

Answer:

D.

Explanation:

The_____states that the cell is the basic unit of life

Answers

Answer:

I think it is Cell Theory.

Explanation:

Because the cell theory has 3 main points:

The cell is the basic unit of all living organisms. All living organisms are made up of cells. All cells arise from pre-existing cells.

The question is related to the first point, so it states the Cell Theory.

I hope this helps!

Cell theory Hope this helps

What effect did the development metallurgy have on civilization?1.
1.The development of metallurgy and the invention of firearms severely reduced population growth.
2.Advances in metallurgy diverted resources away from agricultural development delaying population growth until the past 200 years.
3.The development caused a depletion of natural resources because of intense mining for metals.
4.Metallurgy helped create increases in world population through the development better tools and agricultural equipment.

Answers

Answer:

Metallurgy helped create increases in world population through the development of better tools and agricultural equipment.

Explanation:

I dont know truely but i have a hunch.

why do seismic waves that travel along the earth’s surface cause more damage than other seismic waves?

Answers

Answer: Seismic waves are more dangerous than P waves because they have greater amplitude and produce vertical and horizontal motion of the ground surface. The slowest waves, surface waves, arrive last. They travel only along the surface of the Earth. There are two types of surface waves: Love and Rayleigh waves.

Which instrument measures liquid precipitation?
O Rain gauge
O Wind vane
O Anemometer
O Barometer

Answers

Answer:

Rain gauge

Explanation:

Rain is liquid precipitation so to measure it you use a rain gauge

A rain gauge because it measures liquid instead if how fast the wind is moving

Which is NOT true
A.
Vent organisms thrive in high levels of sulfuric acid
B.
photosynthesis probably evolved before chemosynthesis
C.
vent communities can thrive at temperatures greater than 700 F
D.
Vent organisms thrive at 1000 times surface atmosphere pressure

Answers

Answer:

a

Explanation:

a just trust me on this one

The answer for your question is b

What is an example of a food chain in a Wetland?

Answers

Answer:

level consumers in the food chain are carnivores (flesh-eating), insectivores (insect-eating), or omnivores (flesh-and plant-eating). A wetland example of a food chain: pickleweed, is eaten by salt marsh harvest mice, which are eaten by clapper rails, which are eaten by peregrine falcons.

Explanation:

Agree with the top answer I just need Brainly points

(Will give brainliest if correct) A plant has a genetic defect that causes its leaves to dry out, becoming brittle and prone to injuries. The genetic defect most likely causes each leaf to lack a

Answers

The genetic defect most likely causes each leaf to lack a sufficient root system that can support the plant's growth

Answer:

Cuticle.

Explanation:

"A wax water repellent was made on the outside of the plant called a cuticle to help prevent water loss and injury by keeping the plant hydrated by not letting the water out." -Edge2020 instruction video

Hope this helps!

Anne applies a force on a toy car and makes it move forward. What can be said about the forces acting on the toy car at the moment Anne applies the force?
The forces acting on the toy car are ___
A. restricted
B. Balanced
C. Equal
D. Unbalanced

Answers

Answer:

D. Unbalanced.

Explanation:

If they were balanced or equal it would not be moving, and if it was restricted something would be stopping it making it unable to move.

d. unbalanced

hope this helps!!

The substance in the chart above that has the greatest number of atoms in each molecule is-



iron oxide


sodium chloride


calcium carbonate

magnesium silicate

Answers

Answer:

iron oxide

Explanation:

I relly don't know

Which is NOT true of vent bacteria, they are
A.
primary producers
B.
chemosynthetic
C.
photosynthetic
D.
resistant to extreme conditions

Answers

B , Vent bacteria can synthesize all the compounds they need to live from these nutrients, a process called chemosynthesis
C

Photosynthetic is not a bacteria

1.What are three types of seismic waves?

Answers

Answer:

p waves and s waves

Answer:

There are three basic types of seismic waves – P-waves, S-waves and surface waves. P-waves and S-waves are sometimes collectively called body waves.

Explanation:

use google lol

what is the elevation of point Z

1400 ft
1300ft
1200ft
1100ft
topographic maps

Answers

1100

the elevation of point z is 1100 because in the picture...
The elevation of Z is 1100 feet
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