The option which is not one of the earliest members of the genus Homo is : ( D ) The making of fire
Description of Homo HabilisRemains of Homo habilis were first discovered in Tanzania in 1959 and are believed to have lived between 1.5 million years to 2.3 million years, tools made from stones were found close to their remains therefore scientist believed they had the ability of making tools from stone.
Homo habilis had larger brains and ape like hand structures which were dextrous.
Hence we can conclude that The option which is not one of the earliest members of the genus Homo is The making of fire.
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1: Nature of Science
After measuring the mass of a slice of a potato, a student used a hair dryer to
remove all moisture from the slice. Then the student measured the dry mass of
the same slice of potato. The student determined that potatoes are 40% water.
How could the student replicate this experiment?
7 of 11 QUESTIONS
Repeat the experiment using an oven instead of a hair dryer.
Have other students repeat the same procedure on other potatoes.
Have other students check the original calculations.
Repeat the experiment using apples instead of potatoes.
Replicability is the repetition of the experiment by other researchers who get the same results as the original experiment. B) Other students repeat the same procedure on other potatoes.
What does replication mean in an experiment?
Following the scientific method, an experiment needs to be replicable.
Replication refers to the need of repeating a research study, under different situations, different subjects, and with different researchers to determine the safety of the original findings and their possibility of generalizing them to other situations and participants.
Replicability is the possibility of carrying out the same experiment by other researchers. When repeating the experiment, results should be the same, or with a minimal variation. Results heterogeneity should be minimal.
Option B is correct. Have other students repeat the same procedure on other potatoes.
The exact same experiment will be repeated by different students -researchers- and their results should be the same as the ones of the first student -potatoes are 40% water-.
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Fish populations in some areas of the ocean have been exhausted by overfishing. This has caused ecosystems to become imbalanced and species to become endangered. The diagram below breaks the ocean's total fish population into three categories—species declining in population (overfished), species growing in population (moderately fished), and species with stable population (fully fished). The graph shows the percentage of the total fish population represented by each category for various years between 1974 to 2000. For example, in 1974, 51% of the population was fully fished, 39% was moderately fished, and 10% was overfished. What can be said about the trend in fish populations between 1974 and 2000? A. The percentage of the total fish population that is fully fished decreased by 18%. B. The percentage of the total fish population that is overfished increased by 18%. C. The percentage of the total fish population that is moderately fished increased by 18%. D. The percentage of the total fish population that is overfished decreased by 18%. Reset Submit
The image is NOT found here but fish overexploitation may even lead to the extinction of the total fish population.
What is fish overexploitation?The expression fish overexploitation is associated with the unresponsible use of fish resources (not only for consumption).
Fish overexploitation is a serious problem and it may lead to the disappearance of fish populations (even extinction).
In conclusion, the image is NOT found here but fish overexploitation may even lead to the extinction of the total fish population.
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PLEASE HURRY! WILL MARK BRAINLIEST
Answer:
Here is the ans hope it helps:)
The photo shows the Matterhorn in the Swiss Alps.
What carved the sharp features of this mountain?
OA. Thermal expansion
OB. Iron oxide
C. Glacial ice
OD Plant roots
The sharp features of this mountain was caused by glacial ice and is denoted as option C.
What is a Mountain?
This is an elevated landform on the earth surface with a characteristic steep slopes present in the area.
Swiss alps is located in cold temperate regions with features such as glacial ice which is responsible for the sharp parts of the mountain via erosion.
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Most bacterial infections are treated with antibiotics that is commonly available at public hospitals.
TRUE OR FALSE?
PLEASE STATE WHETHER THE STATEMENT ABOVE IS TRUE OR NOT, TY.
Answer:
The statement is true
What is the relationship between matter and energy?
Pls answer pls help me
Should scientific laws be considered 100 % reliable ? Explain .
Answer:
Not always. We are constantly learning more and more about the universe, and what we find is forever changing. these scientific laws could change at a moment's notice. While they are reliable, you shouldn't trust anything 100% all the time.
Jada wants to eat a meal that will sustain her energy during a long run. Which of these food items is the best source of long-term energy?
grape juice
sugar cookie
baked potato
strawberries
Answer:
Baked Potato
Explanation:
since the potato contains a high amount of carbohydrates
at about 37 grams
hope this helps:)
In photosynthesis what is released as a waste product.
Answer:
Oxygen and Glucose
Explanation
CO2+H20-------->C6H1206+6O2
A variation that results in increased fitness is more likely to be passed on?
A) because those individuals will migrate to new populations.
B) because the individual will reproduce.
C) because those individuals are more likely to survive long enough to pass on their variations.
A variation that results in increased fitness is more likely to be passed on because the individual will reproduce. thus option B is correct.
What is variations?Genetic diversity is endlessly possible as a result of sexual reproduction. In other words, sexual reproduction produces genetically distinct offspring. They are different from one another as well as from their parents.
Variation will be passed on through reproduction. reproduction results in genetic variation which increase the chance of survival of new organisms.
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Answer: Its C
Explanation:
Because those individuals are more likely to survive long enough to pass on their variations.
Which is the reason cells divide
Answer:
Cells devide because in order to meet the requirements of the body.
The body need to grow and every part of a body needs cells for their functions.
Which of the following is NOT an adaptation of the
parasitic tapeworm?
A. No digestive system because food is already digested.
B. Hooks to hang onto host intestine.
C. Fangs to pierce intestine wall and absorb nutrients.
D. Mucus for protection from being digested.
erosion and deposition act to make the landscape smoother. If 4.5 billion years of erosion and deposition have occured, why isn't the Earth's surface more level?
Answer: Because, if there was erosion, the earth could not get in touch with inner land, so erosion can happen on coastlines, rivers, canyons, or any thing that has a body of water.
Explanation:
Juan measured the temperature of salt water. He then added 273 to the measured value. Which temperature conversion is Juan most likely doing?
degrees Celsius to degrees Fahrenheit
degrees Celsius to kelvins
kelvins to degrees Celsius
degrees Fahrenheit to degrees Celsius
Answer: B
Explanation: Degrees Celsius to kelvins
Answer:
Celsius to Kelvin
How do the sizes of the degrees compare between the Celsius scale and the Kelvin scale?The Celsius and Kelvin scales have the same size degree, but have different 'zero' or starting points. The freezing point for water is C and 273 in the Kelvin scale.
Bill was really ill. he had salmonella food poisoning, which means he had __________, abdominal cramps, headache, vomiting, and diarrhoea. what main symptom of salmonella is missing from the list?
Answer:
Fever
Explanation:
Symptoms can last for seven days
Six hours to six days after infection, symptoms typically appear and continue for four to seven days. On the other hand, some people feel symptoms for a few weeks after infection, while others do not.
What cause salmonella to food poisoning?Infection with salmonella is typically brought on by ingesting raw or undercooked meat, poultry, eggs, or egg products, as well as by consuming unpasteurized milk.
The incubation period—also referred to as the latency period—can last anywhere from six hours to six days.
In addition to causing diarrhea, the acute inflammatory reaction can result in mucosal damage and ulceration. The germs have the potential to spread from the intestines and result in systemic illness.
Diarrhea, fever, and cramps are the most common symptoms of Salmonella infection.
Therefore, Symptoms can last for seven days.
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The typing of human blood is determined by three alleles: A, B, and O. Alleles A and B are codominant to one another and O is recessive to both alleles, A and B.
AA/ AO – type A blood, AB – type AB blood, BB/ BO – type B blood, OO – type O blood.
A woman who is homozygous for type B blood marries a man who is heterozygous for type A.
What is the genotype ratio of their offspring?
What is the phenotype ratio of their offspring?
Answer:
genotype ratio = 1AB:1BO
phenotype ratio = 1 type AB blood: 1 type B blood
What part of the immune system is responsible for destroying or neutralizing pathogens.
Answer:
neutrophils are responsible for destroying or neutralizing pathogens
Can hormones made in one part of the body work in another part of the body?
Answer:
The endocrine system is the collection of glands that produce hormones that regulate metabolism, growth and development, tissue function,
reproduction, sleep, and mood, among other things.
Explanation:
Gram per gram, ______ provide the most calories. group of answer choices alcohol proteins lipids carbohydrates
Gram per gram, lipids provide the most calories. group of answer choices alcohol proteins lipids carbohydrates. Thus, the correct option is C.
What is lipids?A lipid is defined as any of a number of chemical molecules that are water insoluble. They are energy-storage molecules and chemical messengers that include fats, waxes, oils, hormones, and some membrane components.
Lipids are fats that offer nine calories per gram to the body, making them the most energy-dense component of food.
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Miohippus has been classified as a browser (an animal that feeds on shrubs and trees) while merychippus has been classified as a grazer (an animal that feeds on grasses). one valid inference that can be made regarding the evolution of modern horses based on this information is that
One valid inference that can be made regarding the evolution of modern horses is that : Pliohippus had teeth adapted for grazing
Description of PliohippusFrom the information provided in the question The modern day horse resembling the pliohippus can be inferred to have teeth which is adapted for grazing just like the pliohippus.
The pliohippus evolved from the merychippus which is classified as a grazer. because of its longer/taller teeth the pliohippus was more adapted to grazing than been a browser.
Hence we can conclude that One valid inference that can be made regarding the evolution of modern horses is that : Pliohippus had teeth adapted for grazing
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Rosalind Franklin used what technique in her study of DNA molecules?
Answer: Rosalind Franklin used X-ray crystallography in her study of the DNA Molecules.
which trophic level does the frog occupy
Answer:
third trophic levelExplanation:
third trophic level
Grasshoppers in turn are eaten by frogs, which is occupying the third trophic level. Frogs here are termed as secondary consumers.
How can bacteria be harmful? Select all that apply.
Which animal is native to a different part of the world than the other two? walrus polar bear penguin.
Penguin is an animal that is native to a different part of the world other than the other two
What is native species?Native species refers to species of organisms that of a particular origin. They are organism found in a location where they are native to or have there origin there .
Therefore, Penguin is an animal that is native to a different part of the world other than the other two
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I need your guys's help!
I had a science exam a day or two ago, and this was one of the questions:
Identify and name the cell organelle:
M- It allows transportation of materials in and out of plant cell.
Isn't the correct answer supposed to be cell membrane? Even though they mentioned in a plant cell.. Because the cell wall is completely permeable.. so it lets anything pass through.. but the cell membrane decides and allows materials to enter and exit the cell..
The teacher said the correct answer is cell wall though.. I would like to know your thoughts!
I believe that the correct answer would be cell wall. You said that the question referred to the cell organelle within a plant cell, which is why the cell wall is correct. The cell membrane is found in animal cells while the cell wall is found in plant cells.
How do land animals remove gas liquid and solid waste materials?
Answer:
The corect phase sequence shown
Gas, Liguid, Solid
Lqud, Gas, Solid
Sold, Liguid, Gas
Gas, Solid, Liquid
above i
Why is the action of phagocytes considered a nonspecific response? it does not occur at any specific temperature. it is not involved with the production of any specific type of lymphocyte. it does not respond to any specific type of hormone. it is not a response to a specific type of pathogen.
The action of phagocytes is considered a nonspecific response because it is not a response to a specific type of pathogen. Thus, the correct option is D.
What are Phagocytes?Phagocytes may be defined as a type of cell that swallows and consumes foreign materials, or any microorganisms or their debris and eliminates it.
Phagocytes perform a process known as phagocytosis to engulf non-self agents and destroy them completely. It is non-specific because they usually give the same response to all kinds of antigens.
Therefore, the correct option for this question is D.
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We call it ________________ when the nucleus divides into two identical _____________________.
Answer:
Mitosis, Daughter Cells
Explanation:
Mitosis is the process in which a eukaryotic cell nucleus splits in two, followed by division of the parent cell into two daughter cells. The word "mitosis" means "threads," and it refers to the threadlike appearance of chromosomes as the cell prepares to divide.
State 2 features each viruses have in common with non living things
Answer:
1. Viruses are unable to respire
2. Viruses are unable to excrete
Explanation:
Both respiration and excretion are essential parts of the life processes of living organisms. Viruses, however, are unable to perform these processes and are therefore considered non-living.