What patterns do scientist identify in the fossil record?

Answers

Answer 1

Answer:

it shows a fat tailed distribution with outer even occurring with higher probability

Explanation:

Answer 2
Instead of the typical bell-shaped curve, the fossil record shows a fat-tailed distribution, with extreme, outlier, events occurring with higher-than-expected probability. While scientists have long known about this unusual pattern in the fossil record, they have struggled to explain it.

Related Questions

PLEASE HELP EMERGENCY!! IF YOU ARE NOT 100% SURE ABOUT YOUR ANSWER DO NOT ANSWER THEN!! PLEASE!!

What would happen if the digestive system was not working?



your body will start to recycle its waste for nutrition

your cells would be able to perform cellular respiration

you would have no ability to get the nutrients and sugars in food

your body can get enough oxygen and release carbon dioxide


(This is 7th grade science)

Answers

Answer:

deth

Explanation:

If the digestive system stope work you would drown you you own vomit

c is the answer :)

sorry if im wrong :(

In full and complete sentences answer what are the different types of muscles?

What are their functions?

Give an example of where each is located.

Answers

Answer:

3. Cardiac muscle cells - are used to help the heart beat and pump blood.

2. Smooth muscle cells- are used in the digestion of food.

1. Skeletal muscle cells- are involved in movements of the skeleton (bones).

Explanation:

There are three types of muscle cells - skeletal, cardiac and smooth.

The skeletal muscle cells are the ones that form the muscle and help to contract and relax. The muscles for movement to take place. these are voluntary muscles and appears striated when viewed under a microscope.

The cardiac muscles are the ones that are found in the heart and are involved in the contraction of the heart for pumping the blood and making the heartbeat. These are involuntary muscles and appear striated under the microscope.

The smooth muscles are the ones that are used to control the involuntary movements in the body except for the heart. Since digestion involves involuntary muscles these are located in the walls of the digestive organs such as stomach and intestine. These muscle cells are non-striated.

Hope this helps

Answer: Smooth Muscles, Cardiac Muscle, and Cardiac muscle.

Explanation:

Smooth Muscles

Visceral muscle is found inside organs like the stomach, intestines, and blood vessels. Visceral muscles are the weakest of all the muscles. Their main function is to move substances through the organ.  This type of muscle is also called plain, unstriped, non-striated, visceral, or involuntary muscles.  Visceral muscles are also called involuntary muscles as they are controlled by the part of the brain which cannot be directly controlled by the conscious mind.  Smooth muscles do not exhibit cross-striations under a microscope, being plain and smooth in form and their uniform appearance, when viewed under a microscope, has led to the term smooth muscle. The smooth muscle fiber is an elongated, spindle-shaped cell, with a single nucleus placed centrally; the myofibrils show longitudinal striations.  They are supplied by autonomic nerves and are capable of sustained contraction, and, therefore, do not fatigue easily.  They provide motor power for regulating the internal environment related to digestion, circulation, secretion, and excretion.  These are less dependent on nervous control, being capable of contracting automatically, spontaneously, and often rhythmically.  Muscles of the blood vessels, and the arrector pili or erector pili muscles of the skin are examples of smooth muscles.

Cardiac Muscle

This type of muscle, as the name suggests is found in the heart. It is intermediate in structure, being striated and at the same time involuntary.  It is meant for automatic and rhythmic-contractions. These fibers have a single nucleus placed centrally which branches and anastomoses with the neighboring fibers at intercalated discs (apposed cell membranes). The cross-striations are less prominent than those in the skeletal muscle.  It is responsible for pumping blood. It is unique as it stimulates itself to contract [autorhythmic or intrinsically controlled] by a pacemaker which is also made of cardiac muscle tissue.  The cells of cardiac muscle tissue are striated—that is, they appear to have light and dark stripes when viewed under a light microscope. The arrangement of protein fibers inside the cells causes these light and dark bands. Striations indicate that a muscle cell is very strong, unlike visceral muscles.  The cells of cardiac muscle are branched X or Y-shaped cells tightly connected by finger-like projections from two neighboring cells [called intercalated discs] that interlock and provide a strong bond between the cells.  The branched structure and intercalated discs allow the cells to resist high blood pressures and the strain of continuous working. These features also help to spread electrochemical signals quickly from cell to cell so that the heart can beat as a unit.

Skeletal Muscles

Skeletal muscles are types of muscles that are most abundant and are found attached to the skeleton. They are also called striped, striated, somatic, or voluntary muscles.  They exhibit cross-striations under the microscope and are considered to be the best-differentiated form of muscle.  They are supplied by somatic (cerebrospinal) nerves, and, therefore, are under voluntary control, with certain exceptions.  They respond quickly to stimuli, being capable of rapid contractions,  and help in adjusting the individual to an external environment. They also get fatigued very easily.  Each muscle fiber of skeletal muscle is a multinucleated cylindrical cell, containing groups of myofibrils. Myofibrils are made up of myofilaments of three types (myosin, actin, and tropomyosin). These are the actual contractile elements of the muscle.  These are under the highest nervous control of the cerebral cortex.  Examples of these types of muscles are muscles of limbs and body wall, and bronchial muscles are examples of skeletal muscles.

please help
difference between stimulus and stimuli.

Answers

Answer:

A stimulus is anything that can trigger a physical or behavioral change. The plural of stimulus is stimuli. Stimuli can be internal or external.

I need help with this. I will give brainliest. Melanie gathers water from different areas of the pond by her school. She puts growing solution into 4 different shallow dishes. She puts one drop of water from different areas of the pond into three of the dishes. She leaves one dish with only the growing solution in it and does not add pond water. She covers all the dishes and leaves them on the counter for several days to compare the algae growth in each dish. Why does she have a dish with just the growing solution in it?

Answers

Answer:

I believe the answer would be C.

Explanation:

Answer:

the answer is C. im sure of it

The following table shows the symptoms in four patients. Each patient suffers from a different disease.
Which patient's digestive system is affected by an infectious agent?

Answers

I believe that the answer is B

Answer: A

Explanation:

Tuberculosis is spreadable through touch and breathing it in so its infectious

Is a Apple an organ,Explain.

Answers

Answer:

A apple is not an organ but it is a product from a apple tree. The apple tree produces the apple from its reproduction system, which shows that a apple could not be an organ.

radiation from structures that have a very high temperature is collected by

Answers

Radiation damage is the major impediment for obtaining structural information from

Please help me on this​

Answers

Answer:

vacuole -> stores water, waste and food

ribosome -> produces proteins

chloroplast -> converts energy

lysosome -> breaks down

cell membrane -> seperates

Explanation:


Perform the following Cross in a Punnett Square. Then give the Percentage of offspring that will have the DOMINANT phenotype. "Two plants that are heterozygous for red color are crossed." *

Answers

Answer:

hii

Explanation:

Describe the growth of a population that in a given year has 10 births, 8 deaths, and no migration

Answers

y=10x-8 would be the equation
The population is going to have a very slow growth. If this rate continues in the same way the population won’t go up. And since no one is leaving or joining that population the increase is hardly going to be noticeable.

Which statement best describes an immune response? *
A) It always produces antibodies
B) It usually involves recognition and destruction of pathogens
C) It stimulates asexual reproduction and resistance in pathogens
D) It releases red blood cells that destroy pathogens

Answers

i think the answer is A

Based on the nature of the immune response, the statement that best describes an immune response is, It usually involves recognition and destruction of pathogens; option B.

What is an immune response?

An immune response is a response produced by the body's immune system in response to a foreign body or pathogen.

Features of an immune response include;

It usually involves recognition and destruction of pathogensIt may or may not involve antibodies

Therefore, the statement that best describes an immune response is, It usually involves recognition and destruction of pathogens; option B.

Learn more about immune response at: https://brainly.com/question/15975169

D Match the labeled parts of the cell to their functions. Packages and transports materials out of the cell: Breaks down sugar to supply energy for the cell: Breaks down waste and other materials: Helps produce, process, and transport proteins: С​

Answers

Answer: a c b d

Explanation:

hope that helps

Answer:

A C D B

Explanation:

edg 2021

Weather and climate fill in the blank

Answers

Answer:

wheres the sentence so I can fill in the blank

Explanation:

Weather and Climate both have to do with the condition of the atmosphere

please help I will brainiest!!!!

Answers

Answer:

field 1 is bigger field  is smaller 2 question field 2 biodiveristy

Explanation:

field one is bigger than Field 2

Help please!!
Number 39!

Answers

Answer: cell —> tissue —> organ —> organ system

aka. D

D. Lots of Cells make tissue. Lots of tissue makes organs. And when there are organs that work together it is an organ system.

Match the labeled parts of the cell to their functions. Gives the cell its shape Stores water, waste, and food Converts energy from the sun to chemical energy Packages and distributes proteins
please hurry!!​

Answers

Answer:

gives cell shape - d

distributes proteins- c

converts energy - b

stores water, waste, and food  - a

Explanation:

Match the labeled parts of the cell to their functions.

Gives the cell its shape:

✔ D

Stores water, waste, and food:

✔ A

Converts energy from the sun to chemical energy:

✔ B

Packages and distributes proteins:

✔ C

In what way is petroleum, a fossil fuel, distributed on Earth?
(Is it evenly,with most places having very little,
unevenly,with some places having none
evenly, with most places having a lot
unevenly, but with all places having at least some)

Answers

Petroleum now let's see...Petroleum also used for cars and other vehicles is distributed around the world for different uses. Today, fossils fuels are necessary for human survival and everyday life and are the primary source for the world’s energy. They are used for heating, transportation, generating electricity, and creating common products like computers, cosmetics, paint, and household appliances.

“Years ago, when prehistoric animals and plants died, layers of rock and dirt gradually buried them. Over millions of years, heat and pressure from Earth's crust decomposed these organisms into one of the three main kinds of fuel: oil (also called petroleum), natural gas, or coal.”

Two of the main functions of the atmosphere is to sustain life: *
Select 2
It blocks ultraviolet radiation
It blocks moonlight
It blocks small meteorites
Reflects all the sunlight

Answers

Answer:

the answer is A and C

Explanation:

Answer:

The answer to your problem would be to choose the first answer, & the last answer.

Explanation:

the atmosphere blocks out most of the sunlight, & blocks off almost all of the U.V. radiation.

Your welcome.

Best of luck to ya in your school,

James Lester.

PLZ HELP IT IS DUE TODAY
the diagram below shows a Chesapeake Bay Waterbird Food Web. What might happen if the sea duck population suddenly shrunk due to disease?

Answers

Answer:

Anything that eats the sea duck would also catch the disease and then it would pass on a create a pandemic and can you put me as brainiest.

Explanation:

Weathering and erosion contribute to the creation of landforms that contain nutrient-rich soil for plant growth. Put the following processes used to create nutrient-rich soil in the correct order.

1
multiple cracks cause large rock to break into smaller rocks

2
water infiltrates existing cracks in large rocks

3
small rocks experience abrasion from winds that contain sand particles

4
sediment combines with organic material

5
rocks expand when exposed to Earth's surface and pressure decreases

What order please??

Answers

Answer:

-5

-3

-1

-4

-2

Explanation:

First-5
Second-3
Third-1
Fourth-4
Fifth-2

PLEASE HELP EMERGENCY!! IF YOU ARE NOT 100% SURE ABOUT YOUR ANSWER DO NOT ANSWER THEN!! PLEASE!!

Order the levels of organization in the human body from smallest to largest.

organism --> organ system --> organ --> tissue --> cell

cell --> tissue --> organism --> organ system --> organ

cell --> tissue --> organ --> organ system --> organism


(This is 7th grade science)

Answers

Answer:

cell, tissue, organ, organ system, organism

Explanation:

Alright! This will be a snap! All living and non-living things are made of one or more unique substances called elements, the smallest unit of which is the atom, (for example, the element oxygen (O) is made of O atoms, carbon (C) is made of C atoms and hydrogen (H) is made of H atoms. Atoms combine to form molecules. Molecules can be small (for example, O2, oxygen gas, which has 2 atoms of the element O; CO2, carbon dioxide, which has 1 atom of C and 2 of O), medium (for example, C6H12O6, glucose, which has 6 atoms of C, 12 of H, and 6 of O); or large (for example molecules called proteins are made of hundreds of atoms of C, H, and O with other elements such as nitrogen (N). Molecules are the building blocks to all structures in the human body.

All living structures are made of cells, which are made of many different molecules. Cells are the smallest independent living thing in the human body. The body is made of many different cell types, each with a particular function, (for example muscle cells contract to move something, and red blood cells carry oxygen). All human cells are made of a cell membrane (thin outer layer) that encloses a jelly-like cellular fluid containing tiny organ-like

structures called organelles. There are many types of organelles, each with a particular function (for example, organelles called mitochondrion provides energy to a cell). Different types of cells contain different amounts and types of organelles, depending on their function, (for example muscle cells use a lot of energy and therefore have many mitochondria while skin cells do not and have few mitochondria).

As in other multicellular organisms, cells in the human body are organized into tissues. A tissue is a group of similar cells that work together to perform a specific function. There are four main tissue types in humans (muscular, epithelial, nervous and connective). An organ is an identifiable structure of the body composed of two or more tissues types (for example, the stomach contains muscular tissue made of muscle cells, which allows it to change its shape, epithelial tissue which lines both the inner and outer surface of the

stomach, nervous tissue which sends and receives signals to and from the stomach and the central nervous system, and connective tissue which binds everything together). Organs often perform a specific physiological function (for example, the stomach helps digest food). An organ system is a group of organs that work together to perform a specific function (for example, the stomach, small and large intestines are all organs of the digestive system, that work together to digest foodstuff, move nutrients into the blood and get rid of waste). The most complex level of organization, the human organism is composed of many organ systems that work together to perform the functions of an

independent individual.

SUPER HAPPY TO HELP!!!!! :) (P.s. can you please give me brainliest?)

please look at the pic!!

Answers

Answer:

c. and a. i hope this helps

Explanation:

I need help with my biology hm

Answers

Only breed the ones that are pure white. Selective breeding can be negative because it can cause mutations in the organism

A student takes notes in class as shown below.
A.
Uses an objective process
Is updated constantly

B.
Is not objective
Does not use a process
Resists new information

Which are the best titles for A and B?

A: “Science”; B: “Pseudoscience”
A: “Pseudoscience”; B: “Science”
A: “Characteristics of Science”; B: “Limitations of Science”
A: “Limitations of Science”; B: “Characteristics of Science”

Answers

Answer:

it is the 3rd one

Explanation:

The 3rd one tbh it’s very easy

Match each description of the types of mechanical weathering to the correct term.

1.rocks tumble and collide with one another in a flowing stream1

2.water gets into cracks of rocks and expands as it freezes

3.the release of pressure causes sheets of rock to peel away

a.
exfoliation

b.
ice wedging

c.
abrasion

Answers

Answer:

a #3

b#2

c#1

....................

A 3
B 2
C1 because I said so

A biome that is temperate is likely to have temperatures that are:
a.
extremely cold.
b
extremely warm.
c
moderate- not too hot or too cold.

Answers

Answer:

extremely cold

Explanation:

a- extremely cold.....

Which system allows for the continuation of the species?

Answers

Answer:

the reproductive system

There are various organ systems that perform various activities and functions in an organism. The reproductive system allows for the continuation of the species.

What is the reproductive system?

The reproductive system is one of the organ systems that undergo a process of fertilization to produce offspring. It has been the biological system that has various anatomical organs that produce the gametes of the fertilization process.

They are involved in the production of sperm and eggs that gets transported and fertilized to form an embryo that is nurtured by the females and develops into offspring. This is the process that is involved in continuity of the life by producing species of the same type.

Therefore, the reproductive system allows for the continuation of living beings.

Learn more about the reproductive system, here:

https://brainly.com/question/15886749

#SPJ6

A scientist measured the distance between fixed points on two different plates over the course of a decade and found that the distance did not change. Does this result support the theory of plate tectonics? Why or why not?

Answers

Answer:

No because the tectonic plate theory says that they move but if they didn’t move then it proves it wrong.

The process that can cause racks that were once underground to be brought up to the Earth’s surface

Answers

Answer:

uplift

Explanation:

this process is called uplift and it can cause rocks that were once underground to come up above the earth's surface. once these rocks are moved the surface , they begin to weather and erode and you know what happens after that.

I hope this helps. let me know and if not I'll try and help you again. have a blessed day

Tell if you agree or disagree with the statements below and explain your answers:

* The tundra is a biome with tall trees and lots of rainfall.

* A habitat contains all of the abiotic and biotic factors an organism needs to live.

* A farmer has a large field with one type of crop. This area has high biodiversity.

Answers

Answer: the last ones wrong because to have lots of biodiversity you need different types of plants or organisms

A tundra has little to no trees

The habitat one is correct

Explanation:

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