Answer: its false
Explan : hope im right
about how long ago did the first single-celled life form appear on Earth?
A. 130 million years ago
B. 1.5 billion years ago
C. 2.5 billion years ago
D. 4.1 billion years ago
Answer:
Around 4.1 billion years ago, the first single celled life form appeared on Earth
Place the following categories from broadest to most specific
Kingdom, Order, Genus, Domain, Species, Class, Family, Phylum
Choose one of the bubbles state whether you think we should develop this technology, and explain your reasoning
Answer:
The green buble
Explanation:
Antibiotics are added to the animal feed or drinking water of cattle, hogs, poultry and other food-producing animals to help them gain weight faster or use less food to gain weight.
Because all uses of antimicrobial drugs, animals contribute to the development of antimicrobial resistance, it is important to use these drugs only when medically necessary.
the production (e.g. growth enhancement) purposes as well as for the treatment, control or prevention of animal diseases. Even today, it is not entirely understood how these drugs make animals grow faster. The drugs are primarily added to feed, although they are sometimes added to the animals’ drinking water.
Mutation is a natural process that changes a DNA sequence. Most DNA changes Faul in a large areas of the genome that sits between genes, and usually they have no effect. When variation occur within jeans, there is more often a consequence, but even then mutations only really cause death or disease. Mutations also generates new variations that can give an individual A survival advantage.
Answer:
The correct answer is -
1) point mutation
2) deletion
3) inversion
4) frameshift mutation.
Explanation:
Point mutation or substitution mutation is a genetic mutation that takes place when there is a change in a single base nucleotide, it can be replaced with other nucleotides from a DNA or RNA sequence of an organism's genome.
Deletion is a genetic mutation that occurs when there is a loss of a segment of a chromosome. If the particular segment is responsible for an important protein or gene the offspring have to be with one copy only therefore, it is considered a bad mutation.
When there is a reversal of the segment of a chromosome occurs a change takes place in genetic material which is known as the inversion type of genetic mutation.
If any of the above mutations take place including deletion, inversion, replacement or insertion in one or more nucleotides to make a change in the amino acid sequence from the site of mutation forward is frameshift mutation.
1. What are the two main divisions of the nervous system? How would you separate them anatomically? Functionally
Explanation:
The anatomical divisions are the central and peripheral nervous systems. The CNS is the brain and spinal cord. The PNS is everything else and includes afferent and efferent branches with further subdivisions for somatic, visceral and autonomic function.
Answer:
1-) Central nervous system and peripheral nervous system.
how much is 14 pennies?
Answer:
14 cent
Hope this helps :)
Answer:
14 cents
Explanation:
$0.14
a culture started with 5000 bacteria. after 8 hours, it grew to 6000 bacteria. predict how many bacteria will be present after 10 hours
you are asked to prapare a drink that is a heterogeneous mixture.what would you prapare?
a.instant coffee and hot water
b.warm milk
c.soft drinks
d.orange juice with pulp
Which cellular change in an organism could be inherited by the next generation?
1.
a change in the ribosomes in the pancreas of a squirrel
2.
the deletion of a single DNA base in a sperm cell of a trout
3.
a decrease in the size of a vacuole in a rose leaf cell
4.
the transfer of a piece of a chromosome in the skin cell of a raccoon
Answer:
4.
Explanation:
Chromosomes are passed on to children. Each parent gives 23 chromosomes to create a full set of 46.
What are the two main sources of energy that power the Earth system?
A. the sun and Earth's interior
B. radioactive decay and volcanic eruptions
C. the sun and the motion of Earth through space
D. the sun and human activities, such as burning fossil fuels
Answer:
The answer is A, the sun and the Earth's interior.
Answer:
A.the sun and Earth interior
Mercury is often used in thermometers. The mercury sits in a bulb on the bottom of the thermometer and rises up a thin capillary tube as the temperature rises. Suppose a mercury thermometer contains 3.380g of mercury and has a capillary that is 0.200mm in diameter. How far does the mercury rise in the capillary when the temperature changes from 0.0 0C to 25.0 0C
Answer:
3.5 cm
Explanation:
Mass of mercury = 3.380
Diameter = 0.200
At t = 0 and 25 degrees we have 13.596 and 13.543 as density
At 0 degree = v = 3.380/13.596 = 0.2485
At 25 degrees = 3.380/13.534 = 0.2497
We use volume of cylinder to get height
At 0⁰ height = 7.91
At 25⁰ = 7.944
The difference in height = 0.035
Multiply by 100 = 0.35 x100
= 3.5cm
Where is ATP produced?
Protozoa are a type of unicellular organisms.
True
False
Answer:
True
Protozoa are eukaryotic unicellular organisms.
It's true lol and why do you take forever to get clothes?
the role of enzymes in seed germination
Answer:
yes!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Which term is used to describe an inherited trait that gives an organism and advantage in its particular environment?
A. Speciation
B. Unicellular organism
C. Adaptation
D.vestigial organ
Answer:
C. Adaptation...........
!!!!!!WILL MARK BRAINLIEST !!!!
2. Below is an image of 2 imaginary organisms. Organism A lived hundreds of years ago while organism B is
alive today. Explain how organism A evolved into organism B, including what environmental pressure (i.e.
predator, habitat, competition, etc) you believe guidede natural selection process that worked on this
species.
0-Organism
A
Organism-B
Answer: Click or tap here to enter text.
Answer:
The new modification in Organism B is the tail.
Explanation:
This might indicate that the organism has to sprint in order to catch prey or to get away from predators. The organism is most likely not a prey, since it has sharp teeth, making it a carnivore. The tail helps in stabilizing the animal while running. The animal might have new threats that have developed over the years (like humans).
What would happen to the living things in the pond if you increase the concentration of salt?
Answer:
they would perish
Explanation:
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What is the types of diseases affecting bone
Answer:
Examples of metabolic bone diseases include osteoporosis, rickets, osteomalacia, osteogenesis imperfecta, marble bone disease (osteopetrosis), Paget disease of bone, and fibrous dysplasia.
Hope it helps!!!
1. Mitosis is a nuclear division that ?
the chromosome number
I'LL GIVE BRAINLIEST (RIGHT ANSWER ONLY)
Which of the following statements about cell organelles is NOT true?
A. Chloroplasts contain chlorophyll and are the site of photosynthesis.
B. Many of the same organelles are located in both plant cells and animal cells.
C. The nucleus in an animal cell has a different primary function than in a plant cell.
D. The endoplasmic reticulum has several roles, including packaging and transporting proteins.
Answer:
C. The nucleus in an animal cell has a different primary function than in a plant cell.Nucleus has the same function in a plant & animal cell.
Homogenization of rat liver cells results in the rupture of the cell membranes. Centrifugation of this homogenate compacts some of the homogenate into a pellet in the bottom of the centrifuge tube. Bathing this pellet with a solution containing succinate (a four-carbon organic compound), phosphate ions, oxygen, and ADP yields metabolic activity, including the production of ATP and the uptake of oxygen. This pellet most likely contains
Complete question:
Homogenization of rat liver cells results in the rupture of the cell membranes. Centrifugation of this homogenate compacts some of the homogenates into a pellet at the bottom of the centrifuge tube. Bathing this pellet with a solution containing succinate (a four-carbon organic compound), phosphate ions, oxygen, and ADP yields metabolic activity, including the production of ATP and the uptake of oxygen. This pellet most likely contains
1. peroxisomes
2. mitochondria
3. lysosome
4. Golgi complex
5. endoplasmic reticulum
Answer:
2. Mitochondria
Explanation:
Mitochondria are one of the biggest organelles in the cell. They degrade organic molecules, releasing chemical energy from their bindings through a process that consumes oxygen: cellular respiration.
The released energy is stored as ATP through the cellular respiration process and then is used in other cellular activities.
Mitochondria are more grouped in areas or tissues with higher energetical requirements.
As cellular respiration characterizes by consuming oxygen and producing ATP, we can assume that the pellet mostly contains mitochondria.
By considering the components of the pellet, we can deduce that it most likely contains MITOCHONDRIA.
Cellular respiration is a series of reactions by which aerobic cells consume oxygen and nutrients (e.g. glucose) to produce ATP and carbon dioxide.
Cellular respiration has three sequential steps: glycolysis, the Krebs cycle and oxidative phosphorylation.
Mitochondria are the energy center of the eukaryotic cells. The Krebs cycle and oxidative phosphorylation occur in the mitochondria, while glycolysis occurs in the cytoplasm.
The Krebs cycle produces a four-carbon molecule known as succinate.
Adenosine triphosphate (ATP), the energy coin of the cell, is produced from ADP and phosphate (Pi) in the three stages of cellular respiration.
Finally, oxygen is consumed during oxidative phosphorylation.
In conclusion, by considering the components of the pellet, we can deduce that it most likely contains MITOCHONDRIA.
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What are the Negative impacts of genetically modified crops
answer:
the use of some gm crops can have negative impacts on non-target organisms and on soil and water ecosystems.
explanation:
for example, the expansion of gm herbicide-tolerant corn and soy, which are twinned with herbicides, has destroyed much of the habitat of the monarch butterfly in na.
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help bonus points
real ans plzz
Answer:
B. A Temperature Of 37°
Explanation:
Hope It Helps U.
how do water and living things interact?
Which of the following statements is true of a gene that is active (expressed)?
A.The DNA corresponding to the gene is tightly wound around histones.
Answer:
There are many acetyl molecules attached to the histones associated with the gene.
Explanation:
I just checked on my homework. I hope this helps others!
true or false the typical X shaped chromosomes is the result of DNA replication
Answer:
True
Explanation:
Truly, the typical X shaped chromosomes is the result of DNA replication. When the DNA has replicated, it then condenses and coil into the X-shaped of the chromosome. This then implies that replicated chromosomes take the X-shaped structures seen under a microscope.
When this replication occurs, the chromosome is made of two structures that are identical. They are known as the sister chromatids. These chromatids are actually joined at the centromere.
What determine the code or information of DNA molecule?
Which of the following is an example of a learned behavior? *
crying baby
swimming fish
walking
breathing
Answer:
Walking
Explanation:
help plz..............
Answer:
Should be 50% tell me if Im right