In the oldest fossils found in Bitter Springs (Cyanobacteria), why can we only find the remains of single celled organisms
Answer:
Due to presence at early days of the planet.
Explanation:
We only find the remains of single celled organisms in the oldest fossils because the single celled organisms are the organisms that were present in the early days of this planet. These single celled microbes were present about 3.7 billion years ago while on the other hand, the oldest rocks are only a little older i. e. 3.8 billion years so these single celled organisms are considered as oldest fossils on this planet.
Which of these shows the correct hierarchical sequence?
Answer:
The correct answer is B ❤️
hello help please i’ll mark brainliest!!!
B. Consisting of billions of galaxies
Hope this helps :)
Any body watch to tpye a 500 word eassy :))))))))) pls
about photosynthesis gas
Explanation:
detach it from or reattach it to the ATP molecule (Brandt). A main reason this is important is because as it was stated earlier, almost all organisms obtain and store their energy through the use of ATP. It is important to note that this energy comes from the energy stored in the bonds of the ATP molecule; therefore, breaking the bonds will release energy and the building of the bonds will require energy. Using this background knowledge, the question can be addressed more thoroughly. Most plants (a fruit in this case) make their own energy through the use of photosynthesis. The basic process of photosynthesis occurs as: light energy (sun) + 6 H2O + 6 CO2 6 O2 + C6H12O6 This is a simplified version of the equation and one must keep in mind that the reaction does not simply occur as written. There are many processes that must take place before the final product, glucose, is produced. Conceptually, photosynthesis is the reverse of cellular…
help me please, its biology i need help with the answer an why you chose that answer
Answer:
I think G if I’m wrong try F OR J
Explanation: tell me if I’m wrong
Can someone help me with question 1 pls:)
answer:
c d e
good luck :)
hopefully, this helps
have a great day !!
What are two of the reasons cited for the snail population on society being devastated?
Answer:
snails move slow
Explanation:
abs
In one of the first steps in Prophase I of meiosis,
A) the cell divides into four daughter cells.
B) the chromatids separate and move to opposite ends of
the cell.
C) half of the chromosomes are made inactive.
D) homologous pairs of chromosomes form tetrads
Answer:
D) homologous pairs of chromosomes form tetrads
Explanation:
During prophase I, the homologous chromosomes condense and become visible as the x shape we know, pair up to form a tetrad, and exchange genetic material by crossing over.
Each chromosome contains thousands of genes. Each gene contains the
information required to build specific……..
needed in an organism.
A. Carbohydrates
B. Lipids
C. Proteins
Will mark brainliest!
Answer:
true
Explanation:
please help please i really need it
Answer:
b
Explanation:
Answer:
with what??? :(
Explanation:
Scientists have studied a fruit fly, Drosophila, to better understand early embryonic development and have discovered that the cell cycle changes as embryonic development proceeds. Model A represents the first 13 cell cycles after fertilization, which only includes two phases. Model B represents cell cycles 14 through 16, which are more complex and include a G2 phase. The figure shows two circular models, labeled Model A and Model B, that represent the cell cycle of fruit flies after fertilization. Model A represents cell cycles 1 through 13, and it contains two phases. Model B represents cell cycles 14 through 16, and it contains three phases.
What of the following explains the advantage of a G2 phase during embryonic development?
A Cells can undergo the cell cycle more quickly with a G 2 phase.
B Cells can replicate more DNA with a G2 phase.
C Cells are checked for DNA damage before entering mitosis with a G2 phase.
D Cells are able to produce two new daughter cells with a G2 phase.
Answer:
C. Cells are checked for DNA damage before entering mitosis with a G2 phase.
Explanation:
G2 phase is very important phase of cell division in which cells are checked for DNA damage before entering mitosis with a G2 phase as well as correct duplication of the DNA is also verified and cell proteins that are necessary for cell division are also produced. This phase comes after S stage in which replication of DNA occurs so this G2 phase check the damages before starting of mitosis.
An oceanographer discovered a deep underwater opening as shown in the illustration. The scientist classifies this as a mid-ocean ridge. Is the scientist correct or incorrect and why or why not?
the Oceanic Crust slipping below the Continental Crust.
© 2016, University of Wisconsin Board of Regents
He is incorrect. Mid-ocean ridges are sites of frequent volcanic activity.
He is incorrect. Mid-ocean ridges are sites of divergent oceanic plates.
He is correct. Mid-ocean ridges are flat areas at the foot of continental shelves.
He is correct. Mid-ocean ridges are ancient volcanoes whose tops have eroded away.
A.He is incorrect. Mid-ocean ridges are sites of frequent volcanic activity.
B.He is incorrect. Mid-ocean ridges are sites of divergent oceanic plates.
C.He is correct. Mid-ocean ridges are flat areas at the foot of continental shelves.
D.He is correct. Mid-ocean ridges are ancient volcanoes whose tops have eroded away.
The correct option is D.
Mid ocean ridges refers to an underwater mountain system that is formed by plate tectonic.Mid ocean ridges are formed when convention current arise in the mantle under the oceanic crust and from a magma,where two tectonic plates come together at aboundary
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nakita ko lng din po yan sa brainly ph....
Answer: He is correct. Mid-ocean ridges are ancient volcanoes whose tops have eroded away
Explanation:
How is carbon moving between the air and found decreasing
Answer:
It moves with the help of hydrogen
True or false. Differences in the amount of silica and silacon dioxide affect magma's thickness and viscosity.
Write the letter of the correct answer on the line at left.
7.
Benny uses a compass to navigate his way through the woods when he
is carnping. The needle on the compass reacts to Earth's magnetic field
by always pointing north. Which part of Earth is responsible for creating
its magnetic field?
A. Cilist
B. inner core
C. mantle
D. outer core
Answer
Outer Core
Because of the weight of the melting moving metal creates energy
Our planet is shielded from cosmic radiation and charged particles from our Sun by the magnetic field, which is created by the motion of molten iron in the Earth's core. It also offers the framework for compass navigation. Thus, option D is correct.
What role of outer core of earth in magnetic field?Radiative heating and chemical differentiation have caused the Earth's outer core to be in a state of turbulent convection.
The convective kinetic energy is transformed into electrical and magnetic energy through a mechanism that is somewhat similar to a naturally occurring electrical generator.
The magnetic field is not produced by the earth's core, since metals lose their magnetic characteristics at high temperatures.
Therefore, Because of the weight of the melting, moving metal creates energy.
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In a process called transpiration, plants get rid of excess water through pores in the leaves called
stomata. This excess water is then released into the atmosphere as part of the water cycle. Which of
the following terms best describes how the released water enters the atmosphere?
O precipitation
condensation
O capillary action
O evaporation
Answer:
evaporation
Explanation:
Answer:
Evaporation
Explanation:
Some students conduct an investigation in a biology lab by setting up four different artificial stomachs, each in a
40 °C water bath. The students place the same amount of boiled egg white, a protein-rich source, in each stomach.
They also add dilute hydrochloric acid, HCl, and pepsin, a digestive enzyme, to each stomach, as shown in the table.
The students observe the mass of egg white in each stomach every 15 minutes.
Which statement describes the most likely result of this investigation?
A. The mass of the Egg white increases as the volume of the enzyme increases.
B. The egg white is unaffected by the differing amount of enzyme.
C. Digestion decreases in each stomach as more of the egg white's surface area becomes exposed.
D. Digestion increases as the volume of the enzyme increases.
Answer: D. Digestion increases as the volume of the enzyme increases.
Explanation:
Enzymes speed up reactions by reducing the activation time of a reaction. If there are more enzymes therefore, the reaction will move faster.
Pepsin is an enzyme that prefers acidic conditions so it can work with dilute HCL. It can also work in temperatures of 40 °C without getting denatured. As more Pepsin is added therefore, the reaction will move faster and digestion will increase.
Answer: The answer would be D!!
Explanation:
Help
What is digestion? Compare and Contrast monogastric and ruminant digestion. Which animals are ruminants and which are monogastric? What organs do ruminants have to help them digest? What chemical compound can ruminants digest that ruminants cannot?
What organs do birds like chickens have and why? What is unique about a horse's digestion
Answer:
Liver
Explanation:
What is a known health problem caused by smokeless tobacco?
emphysema
lung cancer
mouth cancer
cataracts in the eyes
Other effects
can lead to a nicotine addictioncauses cancer of the mouth, esophagus (the passage that connects the throat to the stomach), and pancreas (a gland that helps with digestion and maintaining proper blood sugar levels)can increase risks for early delivery and stillbirth when used during pregnancymay increase the risk for death from heart disease and strokeAnswer:
Mouth Cancer, examples of smokeless Tabaco are chew and dip.
The only type of human cell that is never replaced is ___. *
Answer:
The only type of human cell that is never replaced is Nerve cells.
Hope this helps you. Do mark me as brainliest.
The only type of human cell that is never replaced is nerve cell.
What is a nerve cell?Neurons are in charge of receiving sensory input from the outside world, sending action potentials to our muscles, and transforming and relaying electrical signals at every step in the process.
The nerve cell is the basic unit of communication in the nervous system (neuron). The cell body, a major branching fiber (axon), and numerous smaller branching fibers comprise each nerve cell (dendrites).
They do not divide in any way. There are only two exceptions to this rule: only two specific areas of the brain can produce new neurons. However, for the most part, the brain is unable to replenish dead neurons.
Thus, nerve cells are the ones that never gets replaced after getting injured.
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What type of volcano is pictured below?
composite volcano
shield volcano
strato-volcano
cinder volcano
Answer:
the answer is the shield volcona
Punnet square please help it’s an emergency
Answer:
top left:
T T
T TT TT
T TT TT
1) dominant tall 2) dominant tall 3) dominant tall 4) dominant tall
top right:
T t
T TT Tt
t Tt tt
1) dominant tall 2) mixed hybrid 3) mixed hybrid 4) recessive short
bottom left:
T T
T TT TT
t Tt Tt
1) dominant tall 2) dominant tall 3) mixed hybrid 4) mixed hybrid
bottom right:
t t
t tt tt
t tt tt
1) recessive short 2) recessive short 3)recessive short 4) recessive short
Which of the following conclusions was a result of Gregor Mendel's observations?
A:Organisms that give rise to purebreds are genetically superior
B:Organisms that have intermediate features are self-pollinating
C:Organisms inherit two copies of each gene, one from each parent
D:Organisms that self-pollinate do not have "either-or" features
Which function of the integumentary system is illustrated in the release of sweat?
Absorbtion
Protection
Sensory Reception
Regulation
Secretion
Both regulation and secretion
Answer:
Secretion
Explanation:
Not completely sure tho, good luck
Which of the following is the best solution to meet energy demands while protecting the environment?
A grow more corn to produce ethanol
B. build more nuclear power plants
C. find and burn new sources of oil and coal
D. improve energy efficiency and reduce energy waste
Answer: D
Explanation: just took the quiz
The best solution that meets the energy demands while protecting the environment is to improve energy efficiency and reduce energy waste. Thus, the correct option for this question is D.
What is the Environment?The environment may be defined as a sum total of all forms of living and non-living elements and their consequences that significantly influence human life. It includes biotic and abiotic factors. The term environment is first given by Carlyle.
The protection of the environment requires a lot of actions by humans and the cooperation of other living organisms as well. All these actions impact the protection of the environment and improve energy efficiency along with the reduction in energy waste.
Therefore, improving energy efficiency and reducing energy waste is the best solution that meets energy demands while protecting the environment. Thus, the correct option for this question is D.
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Mom has type O blood. Dad has type AB blood. What percentage of their kids will inherit type B blood?
Answer:
50%
Explanation:
Type A blood and type B blood are both dominant over type O blood.
A B
O AO BO
O AO BO
As is demonstrated by the Punnett square, the children's genotypes will either be AO or BO. Since type O blood is recessive, no child will have O blood, as other dominant alleles are present. 50% will have type A blood and 50% will have type B blood.
how would this affect the cells made from the cell cycle? passage: timmy has a disease that effects his cell cycle, it causes the S phase (part of interphase) to not work correctly.
Answer:
No cells are produced.
Explanation:
If the S phase of cell cycle did not work properly, the cells produced are abnormal or no cells are produced because no extra copy of chromosomes are present for cell division. If there is no extra copy of chromosomes is present in the cell, the cell will not go to the G2 phase and as a result the cell cycle is remain incomplete. So that's why we can say that no cells are produced if S phase did not work properly.
How will increased temperatures affect water in California?
Answer:
Rising temperatures also increase the rate at which plants transpire water into the air to keep cool, so irrigated farmland would need more water.
Explanation:
A train travels 67 km, north along a straight track in 39 minutes. What is the train's average
velocity in kilometers per minutes?
A. 28Km/mins
B. 1.72Km/mins
C. 0.582Km/mins
D. 106 Km/mins
Answer:
B. 1.72Km/mins
Explanation:
The topic is Mathematics, not Biology but okay!
All you have to do is 67/39 which equals 1.72km/mins.
This is because you have to work out the average speed in kilometres per minute. 39/39 = 1 minute
I hope this helps you!! ^-^