Were there any extinction events that occurred during the Cambrian period?? Help !!!

Answers

Answer 1
Yes. Oxygen crash led to Cambrian mass extinction

Related Questions

6. Make connections: Why is it necessary for traits to be inherited for evolution to
take place?

Answers

Answer:

A condition necessary for evolution to occur is that a parent plant produces more offspring than can normally survive. ... A condition necessary for evolution to occur is that the traits of the "fittest" phenotypes that survive are inherited by the successful progeny. The offspring must tend to resemble their parents.

Explanation:

List the 6 levels of organization and define each

Answers

molecule - they have a wide range of sizes and structures and perform a vast array of functions.

cell - consist of cytoplasm enclosed within a membrane, which contains many biomolecules such as proteins and nucleic acids

tissue - an ensemble of similar cells and their extracellular matrix from the same origin that together carry out a specific function

population - same species that live in a particular geographic area at the same time

organ system - organs that work together as a biological system to perform one or more functions

ecosystem - community of living organisms in conjunction with the nonliving components of their environment

Which word describes the process by which a human transmits a disease to an animal?

Answers

Answer: reverse zoonosis or anthroponosis.

Explanation:

Answer:

a zoonosis

Explanation:

is an infectious disease caused by a pathogen (an infectious agent, such as a bacterium, virus, parasite or prion) that has jumped from an animal (usually a vertebrate) to a human. Typically, the first infected human transmits the infectious agent to at least one other human, who, in turn, infects others

can anyone answer that​

Answers

Answer:

1. Short-term energy storage

2. Lipids

3. Speed up chemical reactions, support cell's structure

4. Nucleic acids

Explanation:

The image comprising of a tabular representation portrays the four biological molecules, their building blocks and function. The four biological molecules in nature are carbohydrates, proteins, lipids and nucleic acids.

- Carbohydrates are biological polymers made up of monomers called monosaccharides. They function to store energy in cells for a short period of time. Examples are glucose, starch etc.

- Lipids are formed from monomers called FATTY ACIDS. They function in the long term storage of energy. Examples are phospholipids, fats etc.

- Proteins are formed from monomers called AMINO ACIDS. They provide various functions including speeding up of chemical reactions, provide cellular structure support etc. Examples are haemoglobin, melanin, hormones etc.

- Nucleic acids are polymers of NUCLEOTIDES. They function majorly in the storage of genetic information. Examples are DNA, RNA etc.

Someone please help ASAPPPP

Answers

I believe the answer is A

Answer:

(its C)

if its right tell me!

(iv) Measles. Mumps, Diphtheria Polio odd one​

Answers

Answer:

polio

Explanation:

please mark me as brainliest

Polio I think it’s the answer

What percent of energy is transferred from the sun to the level indicated? (3 points)
50 percent
100 percent
90 percent
10 percent

Answers

Answer:

It can

be explained with the help of ten percent law which

states that only 10 percent of the total energy available

at any trophic level is passed on the higher trophic level .

Most of the energy is lost as heat or is used in the

process of cellular respiration.

Explanation:


Oxygen is a product of the electron transport chain.
True or False

Answers

Answer:

true

hope this helps you ☺️☺️

Electron transport chain can be defined as the series of organic molecules and proteins which are embedded in the inner membrane of mitochondria. These molecules are involved in the shutting of electrons from FADH2 and NADH to the [tex]O_{2}[/tex].

The molecular oxygen is the final electron acceptor in this electron transport chain that leads to the formation of water and ATP as the end products. This chain takes place in the mitochondria in both animal and plant cells.

Hence, the given statement is true.

https://brainly.com/question/13975046

Polydactyly is expressed when an individual has extra fingers and/or toes. Assume that a man with six fingers on each hand and six toes on each foot marries a woman with a normal number of digits. Having extra digits is caused by a dominant allele. The couple has a son with normal hands and feet, but the couple's second child has extra digits. What is the probability that their next child will have polydactyly

Answers

Answer:

The probability of the couple´s next child having polydactyly is 1/2 = 50%

Explanation:

Available data:

Due to technical problems, you will find the complete answer and explanation in the attached files

In order for a compound to be considered organic, what 2 elements must the compound contain

Answers

Answer:

Organic compounds contain carbon and hydrogen (which may be replaced by other atoms).

gene mutations can occur
a. exposure to chemical mutagens
b. exposure to gamma radiations

Answers

Answer:

b

Explanation:

Write one scientific question about the organism in
the photo. Sunflowers

Answers

Answer:

how do sunflowers disperse their seeds

Explanation:

Do natural hazards always become natural disasters? What are some things that people can do that might influence whether or not a natural hazard will become a natural disaster?

Answers

Answer:

SLLLW

Explanation:

People influence weather in many ways. For example, cities create heat islands, crops produce humidity and roads increase the intensity of floods.

Which is NOT a function of the stem in plants?

Answers

Answer:

abortion of water from the soil

Explanation:

Answer:

Absorption of water from soil

Explanation:

That's what the roots do :)

You are part of a small group of humans rocketed at “warp speed” to Planet X, without any books, weapons, or technology. Planet X has no ozone layer to protect its surface from cancer-causing ultraviolet radiation, but native plants and animals have evolved to live safely there. Below the surface, the planet has a network of underground tunnels, just a meter high, which are inhabited by carnivorous predators.

Write 3 paragraphs using the vocabulary words we discussed today in class about how descendants of the group of humans would look and act after evolving for 100,000 years on Planet X.

Answers

Is there optional cause it just so many words like a story?

At what light intensity do both sun plants and shade plants have the same rate of
photosynthesis?

Answers

Answer:

The rate of photosynthesis is at a maximum over a narrow range of light intensities.

Explanation:

Light provides the energy required to drive the process of photosynthesis. Starting from a low light intensity, the rate of photosynthesis increases as intensity increases.  Hopefully helps ig

Why can grasses not survive on the island yet?​

Answers

why can grasses not survive on what island?
Because it’s dry? I don’t know but I think it’s common sense

pls help will give brainliest

Answers

From left to right: Photosynthesis , Respiration

Answer:

The first one is Photosythesis and the second one is Respiration

Explanation:

The cell membrane is ----------in nature
a. Highly permeable b. normally permeable c. not permeable d. partially permeable

Answers

Answer:

d. partially permeable

Explanation:

The cell membrane is the cellular organelle that covers and bounds all cells. It forms a boundary around a cell, protecting all other organelles. The cell membrane, according to the FLUID MOSAIC MODEL, contains phospholipid bilayer, proteins etc.

The phospholipid (lipid) content of the cell membrane confers its ability to be SELECTIVELY OR PARTIALLY PERMEABLE upon it. It is said to be partially permeable because it allows the passage of some molecules/substances and blocks the passage of others.

8.
Waste products that are easily broken down by nature are

hazardous
toxic
biodegradable
recyclable

Answers

The answer to this question is Biodegradable

WRONG ANSWERS ONLY!!! What is coastal runoff and what does it affect

Answers

Answer:

The sky.

(Purposely wrong.)


“Friendly" microbes secure a place to live and grow,
keeping less friendly microbes from taking control.

Is this an example of mutualism or not?

Answers

Answer:

yes because this positivley affectz both friendly microbes

the green colour pigment present in leaves chlorophyll true or false​

Answers

Answer:

True

Explanation:

Chlorophyll produces a green pigment, which is why leaves look green

Answer:

true the green stuff is chlorophyll

Explanation:

see attached...thank you

Answers

I don’t see anything
Sorry it is blank , I can’t see anything

The interphase consists of the _____, _____, and _____ phases.​

Answers

Answer:

The interphase consists of the G1 phase, S phase, and G2 phases.​ :3

Explanation:

:3

The function of some cyclin-dependent protein kinases (CDKs) has been remarkably conserved in evolution. Indeed, coding sequence for the human protein Cdc2 is able to substitute for the CDC28 gene in S. cerevisae and allow the yeast cell to grow and mate essentially normally. The following sequence near the NH2-end of the molecule is identical in both proteins: Gly-Glu-Gly-Thr-Tyr-Gly-Val-Val-Tyr-Lys-Ala. Does this mean that nucleotide sequences of the two genes coding for this region of the polypeptide are also identical

Answers

Answer:

No, because the genetic code is redundant  

Explanation:

During the translation, a single amino acid may be coded for by more than one codon. It is for that reason that the genetic code is considered to be redundant. Tryptophan is the unique amino acid specified by a single codon. In this case, it is likely that silent mutations at the nucleotide sequence that encode for the Glu-Gly-Thr-Tyr-Gly-Val-Val-Tyr-Lys-Ala protein motif might have accumulated during the evolution of both CDK genes, modifying thus their nucleotide sequences while preserving the same protein sequence.

Which of these is an impact of burning coal for energy?
A. acid rain
B. mercury released into the waterways
C. Increased carbon dioxide in the environment
D. all of the above

Answers

The answer is D. All of the above
The answer is D all of the above

PLEASE HELP ME!!!!!!!​

Answers

Answer:

The last one

Explanation:

Short Pea Plants only, is your answer

May someone help me with this please?

Answers

photosynthesis: CO2

i think so :)

Key Concept Name the
main events of the cell cycle.

Answers

Interphase, prophase, metaphase, anaphase and telophase.
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