Study the timeline.
Based on the timeline, about how many years ago could the oldest mammalian organism have lived?
5 million years
200 million years
1.5 billion years
4.5 billion years
Answers
Related Questions
Plsss help 100 points extra
And brainliest
Answers
Answer:
turner syndrome
Explanation:
no extra x, is visible
Answer:
turner syndrome
Cells come in various shapes and sizes depending upon their function. True or False?
Answers
Answer:
true
Explanation:
Answer: true
Explanation: Cells come in various shapes and sizes depending upon their function. ... Cells combine to form organ systems, organ systems combine to form tissue, and tissues combine to form organs. (this is off google so it is copyright.. you might want to summarize)
What are some characteristics of the type of khoomii singing known as kargyraa?
Answers
Answer:
1. It produces a very deep sound.
2. It combines the vocal and vestibular folds at the same time.
3. It causes the vibration of the vestibular folds. A vibration cycle culminates at the second vibration.
4. There are basically two types, namely the Dag and Xovu styles.
5. It resembles a Tibetan Buddhist chant.
Explanation:
Khoomii, also known as Tuvan throat singing is a way of singing mostly characterized by the production of deep sounds and vibrations. A basic pitch which is supplemented by another pitch combine to produce the sound. It is sung by the locals in Siberia and Tuva.
Kargyraa is one of the four forms of this song and it typically involves the production of deep sounds and some vibrations of the vestibular folds at times. There are two basic types which are the Dag and Xovu. It also has a similarity to the chant produced by the Tibetan Buddhists.
What separates mildew out from other fungi?
Answers
Answer:
Mildew is more identifiable and can be treated with store bought cleaner, but other fungi can be the result of a larger infestation
Which statement about solar eclipses is false?
Select one:
a. They occur during the full moon phase.
b. They are rare.
c. They last only a few minutes.
d. They may be partial or total eclipses.
Check
Answers
I guess the answer is most likely b) they are rare.
solar eclipses can occur fairly often, sometimes 2-4 times a year
The statement about solar eclipses that is false is the statement that; "they occur during the full moon phase."
An eclipse is said to occur when one celestial body casts a shadow on another celestial body. A solar eclipse occurs when the moon comes in between the sun and the earth such that a shadow of the moon is cast on the earth. A solar eclipse may be partial or complete.
The statement about solar eclipses that is false is the statement that; "they occur during the full moon phase."
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Look up at the night sky and just wonder. Then tell me what you wondered about.
Answers
I wonder what sort of stuff happens up there that nobody is aware of. All the different kinds of possibilities. And if there is life, then what would they be doing and how are their ways of life?
Organisms need _____ to conduct essential life activities
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Answer:
The correct answer is energy. Other organisms are not necessary, just like offsprings since there are many organisms that never have offsprings. Light is also not necessary with numerous organisms, especially those like the ones that live deep in the sea where light never reaches. Some form of energy is necessary for everyone.
Enzymes are not specific and can work on any compound anytime
true or false
Answers
HELP
PLEASE GIVE ME 5 REASONS ON WHY IT IS IMPORTANT TO SAVE THE ENVIRONMENT.
PLEASE DON’T COPY FROM WEBSITES WORD FOR WORD
I WILL MARK YOU AS BRAINLIEST
Answers
Explanation:
.For the our health because if the environment is saved the we are able to get the fresh air.
.For decreasing global warming because if environment is saved then the pollution is controlled.
.For decreasing deforestation which can control landscape because saving the environment can also be taken as saving trees.
For saving the animals because the habitat of animal is forest which need to be protected by protecting environment.
.For saving the natural resource which are also the reasons of income because it attracts tourists.
Which of the following is an Abiotic factor?
Wind
Animals
Plants
Humans
Answers
Answer:
Wind
Explanation:
How big is a meter?
Answers
Answer:
1m=100centimeters
Explanation:
25 points + brainliest! ik this is the wrong subject but not much people pick to help law Pick a side (plaintiff or defense). Pick a witness ( burglar or mr king). Choose something that could be used as evidence (an object, report, footage, etc).
Write a script on how you would introduce the evidence to the judge, pick a witness (the burglar or mr king) and write 3 questions using the evidence that will help your side.
Answers
Answer: side: plaintiff
witness: Mr. King
evedence: dog will only attack if you are on the land he is protecting
window was broken so he was trying to rob the place
guard dog was trained to attack on command
hope this helps you out
Explanation:
If pharmaceutical researchers want to learn how to keep cancer cells from dividing uncontrollably, which
approach are they most likely to try?
Interrupt some stage of the cell cycle, such as the formation of the spindle that separates chromatids.
Develop strong dyes that will be able to color the chromosomes for good visualization.
Provide dangerous levels of radiation to irradiate the
cancer cells in a human being.
Starve the cancer cells by starving the patients, thereby reducing chances of cell division.
Answers
Answer:
c
Explanation:
Chemotherapy i.e. use of drugs to destroy the cancer cells by inhibiting their growth and division. Therefore, option (A) of interrupting stages in cell cycle is correct.
What do you understand by chemotherapy?
Chemotherapy is a medication that employs strong chemicals to destroy rapidly developing cells in your body. Chemotherapy is most commonly used to treat cancer because cancer cells grow and proliferate significantly faster than the rest of the body's cells. There are several chemotherapy medicines available.
Taxol (Paclitaxel) and other drugs that poison microtubules and impede the mitotic spindle have been used extremely efficiently in chemotherapy. This prevents cancer cells from proliferating and kills them.
Therefore, pharmaceutical researchers uses drugs to learn cancer treatment. Option (A) is correct.
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Darwin discovered twenty different species of finches in the Galapagos islands. He hypothesized that as new islands arose, finches
colonized the islands and rapidly changed into new species, depending on what food was available on each new island. The rapid
formation of many new species, as in this case, is called
Answers
Answer:
Adaption radiation
Explanation:
This process explains how organisms transform rapidly due to the changes within their environment. When a change occurs it created new challenges, new resources are available, as well open up to new environmental niches.
NEED HELP DUE TODAY PLZ HELP ME!!!!
I AM STUCK PLZ PLZ PLZ HELP ME!!!!
In the cell above, a mutation occurs and causes the proteins responsible for photosynthesis to malfunction.
Which labeled structure would be the most likely site in which these malfunctioning proteins exist?
Choose 1 answer:
(Choice A)
A
Structure A
(Choice B)
B
Structure B
(Choice C)
C
Structure C
(Choice D)
D
None of these labeled structures would be the site of the malfunctioning proteins.
Answers
Answer:
Structure A
Explanation:
Malfunction proteins happen when it changes the instructions for a gene to make a protein. This change or "malfunction" can disrupt any protein and cause not to work at all. When in a mutation occurs and changes the protein, it can change the development and cause serious medical conditions for a person.
Labels of the cell can be found here;
Structure A shows the Chloroplast.Structure B shows the Golgi ApparatusStructure C shows the Large Central Vacuole.Protein malfunction typically occurs in the Chloroplast.
A picture of a cell can be found below for extra clarification if needed.
Best of Luck!
E. Coli is a type of prokaryotic bacterium that is present in contaminated food. Which describes where the genetic material is found in E. Coli?
A.nucleus
B.cytoplasm
C.cell membrane
D.ribosomes
Answers
Answer:
NUCLEUS
Genome structure
Explanation:
why do chicken eggs grow larger compared to other eggs?
Answers
Answer:
Chicken eggs grow larger compared to other eggs due to their relative body sizes.
Explanation:
Egg laying and the size of an egg is relative to the size of the organism. So an ostrich lays a really large egg because it is a larger animal and can handle that size. Whereas a bluebird lays a small egg because it is a small bird.
What causes the phases of the moon?
Answers
Answer:
Just like the Earth, half of the Moon is lit by the Sun while the other half is in darkness. The phases we see result from the angle the Moon makes with the Sun as viewed from Earth. ... We only see the Moon because sunlight reflects back to us from its surface.
May I please have a brainliest? <3
Hope this helps-xoxo
Answer:
The rotation and revolution of the Moon around the Earth. And the Sun' s light reflecting off the surface of the moon
Explanation:
Minerals:
A. were once living
B. are man-made materials
C. are only found in rocks
D. naturally grow into crystals
Answers
How does a healthy environment helps to make happy life?
Answers
Answer:
A healthy environment means the surroundings full of positivity , pollution free , nature that benefits your mind . A good environment makes our mind relax we can think good and positive thoughts . we can spend our lives stress free .
Water and nutrients that are not cycled are stored is a
Answers
Answer:
Reservoir
Explanation:
Answer:
reservoir
Explanation:
Which of these is a scientific hypothesis about the growth of a plant? A Plants make a pretty decoration in the house. B It's fun to watch this plant grow. C Plants grow best when they are happy. D This plant will grow best in sunlight.
Answers
Answer:
D. Plants grow best in sunlight.
Explanation:
The other answers can't be scientifically proven, therefore they would not make a good hypothesis. A hypothesis is a statement that can be tested and verified.
Plant will grow best in sunlight. So, the correct option is (D).
What is the scientific hypothesis about the growth of a plant?According to the evolution-immunity hypothesis in ecology, fast-growing plant species should suffer more from herbivores and pathogens than slow-growing species. Tests of this hypothesis have focused on above ground plant tissues, herbivores and pathogens. This should also apply to route defense.
When the amount of fertilizer applied to the plants is increased, the growth which is the height of the plant increases. As the amount of fertilizer increases, plant growth increases.
Plant growth shall be considered as an increase in plant volume and/or mass with or without the formation of new structures such as organs, tissues, cells or cell organelles that grow in the presence of sunlight.
Thus, plant will grow best in sunlight. So, the correct option is (D).
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C2H12O6 is a type of
Answers
Answer:
Glucose is form of carbohydrates. 6 atoms of carbon. 12 atom of hydrogen.
Explanation:
Which of the following organic molecules are classified as carbohydrates?
amino acids
O nucleotides
O sugars
O fatty acids
Answers
Carbohydrates, proteins, and fats are digested in the intestine, where they are broken down into their basic units:
Carbohydrates into sugars
Proteins into amino acids
Fats into fatty acids and glycerol
The organic molecules that are classified as carbohydrates are ; ( C ) Sugars
Carbohydrates are classified as monosaccharides, disaccharides, and polysaccharides. under the monosaccharides we have the simple sugar with formula ; C₆H₁₂O₆ .
When carbohydrates rich food substances are consumed they are broken down into sugar so that the human body can easily absorb it. therefore the organic molecules that can be classified as carbohydrates are sugars while proteins are broken down into amino acids.
Hence we can conclude that The organic molecule that is classified as carbohydrates is ; ( C ) Sugars
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Curly hair, large nose, brown eyes: our
give the instructions that determine human traits, like these.
A) cells
B) gametes
C) genes
D) genotypes
15pts
Answers
Genes determine eye color, large nose and brown eyes. Therefore, option (C) is correct.
What are genes?A gene is the fundamental structural and operational component of hereditary material. DNA is the material that constitutes genes. Some genes' sole purpose is to provide instructions for making larger molecules known as proteins. However, many genes do not contain the coding necessary to produce proteins. Genes in humans can be as small as a few hundred DNA bases or as large as more than 2 million DNA bases.
Many of your characteristics, such as the color of your hair and skin, are determined by the genes that were passed down to you.
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Which chracteristic is used for cell-cell conmunication
Answers
Answer:
Cells typically communicate using chemical signals.
Explanation:
hope this helps :)
The sun appears to move from east to west across the sky each day because Earth
Select one:
a. rotates in a clockwise direction.
b. rotates from east to west.
c. rotates from west to east.
d. none of the these.
Answers
Answer:
B. Rotates from east to west.
Explanation:
Earth's spin (or rotation) on its axis. Earth rotates or spins toward the east, and that's why the Sun, Moon, planets, and stars all rise in the east and make their way westward across the sky.
Which renewable resource is not at risk?
1) Fisheries
2) Petroleum
3) Forest
4) Ground water
Answers
Answer:
C, forest.
Explanation:
Trees are easily replaceable. With the other options, those are all considered non renewable energy sources. Those take millions of years to form. When we look at fishery, people can do what's called "overfishing" when they fish too much faster than fish can reproduce. Therefore making C your best answer choice.
The largest known protein with the greatest number of amino
acids is
Answers
Answer:
Titín is the largest know protein with the greatest number of animo
The largest known protein with the greatest number of amino acids is titin.
What is titin ?Titin or connectin is a largest protein in humans which is encoded by the TTN gene, having greater than 1 µm in length and it functions as a molecular spring responsible for the passive elasticity of muscle.
It consist of 244 folded protein domains connected by unstructured peptide sequences, when the protein is stretched, the domains will unfold.
Titin protein involve in the contraction of striated muscle and connected the Z line to the M line in the sarcomere, contributes to force transmission at the Z line.
It limits the motion range of the sarcomere during tension, so it involve in the contribution of passive stiffness of muscle, it is the third most abundant protein in muscle after myosin and actin.
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Seeds are the offspring of mature plants. If a seed germinates and survives, it will grow to become a mature plant. Based on this information, what level of organization describes seeds?
Tissue
⊝
Organ
⊝
Organ system
⊝
Organism
Answers
Answer: tissue
Explanation: