Answer:
Pupil
Explanation:
It is the dark part of the eye
Answer:
The pupil appears as the dark central part of the eye.
Explanation:
mark me brainliest please
The number of worldwide standard time zones is
*
15
30
12
24
Answer:
24
Explanation:
Which bone is identified in the picture below?
Answer:
errrrrrrrrrrr
Explanation:
Answer:
the ulna
Explanation:
the muscle is called the forearm, i work out so that helped XD
Question 5 of 10
As of the year 2000, the human population was approximately
Answer:
A. 6 billion
Explanation:
The full question is:
As of the year 2000, the human population was approximately _______.
A. 6 billionB. 3 billionC. 1 billionD. 10 billionWhat is the positive aspect of GMO
The pros of GMO crops are that they may contain more nutrients, are grown with fewer pesticides, and are usually cheaper than their non-GMO counterparts. The cons of GMO foods are that they may cause allergic reactions because of their altered DNA and they may increase antibiotic resistance.
Today, those who directly see the most benefits from GMOs are farmers and agricultural companies. ... GMOs are also used to produce many medicines and vaccines that help treat or prevent diseases. Before GMOs, many common medicines had to be extracted from blood donors, animal parts, or even cadavers.
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Explanation:
There are multiple positive aspects of GMO, but it has many drawbacks as well. Genetically modified foods can become more resistant to disease, pests, and even natural disasters(floods, drought, etc.)
Why did blson almost go extinct in the late
1800s? (NO LINKS)
A) Climate change
B) Disease
C) Ice Age
D) Overhunting
Which blood type can be donated to the smallest percentage of people?
Why has Earth’s climate changed so rapidly in recent years? A The sun has gotten much hotter. B People are eating too many plants. C People are burning too many fossil fuels. D The Earth is rotating too slowly to cool off effectively.
Answer:
The answer is C
Explanation:
What is the most significant contributor to sea level rise?
O Melting sea ice
O Melting ice sheets (like Greenland and Antarctica)
O Melting glaciers
O Melting permafrost
Answer:
Melting ice sheets (like Greenland and Antarctica)
Explanation:
Which of the following best describes a form of genetic drift in which the animal population is depleted, thereby reducing the population's genetic diversity?
A. bottleneck effect
B. disruptive selection
C. founder effect
D. gene flow
The bottle neck effect best describes a form of genetic drift in which a population of animals becomes smaller, thereby reducing the genetic diversity of the population. So, the correct option is A.
What is the Bottleneck effect?The bottleneck effect occurs when population numbers are dramatically reduced as a result of natural disasters such as earthquakes, floods, and other natural disasters. The new population is composed of organisms that were able to survive the catastrophe whose allele frequency will be radically different from the original allele frequency.
The bottle neck effect best describes a form of genetic drift in which a population of animals becomes smaller, thereby reducing the genetic diversity of the population.
Therefore, the correct option is A.
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Organisms are interdependent by all taking part in a food chain. Organisms rely on each other to sustain the ecological environment, something that humans have been lacking in. So, in general, organisms are interdependent because they have no choice.
Explanation:
Plants and animals need to coexist in order to thrive. Plants need animals just as much as animals need plants. A simple example of this would be trees. Trees provide many things to many different organisms but I will use shelter as an example. Trees provide shelter to many animals such as birds, so in essence they protect birds. Birds eat plants and in turn spread the seeds which grow. Insects, like bees, collect pollen from the flowers, etc. It is all part of a complex system in which species all depend on one another for some specific reason. So, interdependence is when plants and animals depend on each other for survival.
In general, the interdependency of organisms extends ecologically to their environment. Organisms rely on each other to sustain the ecological environment, something that humans have been lacking in. So, in general, organisms are interdependent because they have no choice.
What was the ethical issue with HeLa cells ?
HeLa was mass-produced to help researchers of cancer, herpes, leukemia, sexually transmitted diseases, Parkinson's disease, appendicitis, hemophilia and gene mapping. But their harvest was illegal. The Lacks family had no awareness that Henrietta's cells were being used for research
Before cellular division, the cell must duplicate its DNA so that the daughter cells will contain complete copies of the dna. Which characteristic of DNA makes it most suitable as a molecule for this role?
A. DNA is located in the nucleus
B. DNA is a large macromolecule
C. DNA is made of repeating sugar-phosphate subunits
D. DNA is made of two strands of complementary nucleotides
Answer:
D. DNA is made of two strands of complementary nucleotides
Explanation:
As rightly stated in this question, DNA replication must occur prior to cell division because each daughter cells must receive an equal and correct amount of genetic material (DNA). DNA replication is the process by which the DNA molecule duplicates to form two identical copies of itself.
This replication characteristics of DNA is achievable because "DNA is made of two strands of complementary nucleotides". The double-stranded DNA first unwinds into two single strands. After which, each single strand serves as a template for the new DNA strand. Two strands of a DNA molecule are complementary to one another.
Which of the following would NOT increase competition in an ecosystem?
O The size of a forest decreasing from 1000 acres to 500 acres
The number of organisms in a rabbit population doubling in six months
Two different species using the same plants for food
A new species of fruit-eating birds moving into an area with insect-eating birds
What is the The ability of a metal to be drawn out into thin wires is 1. chemical property
2. physical change
3.chemical change
4. physical property
Answer:
2
Explanation:
The ability of a metal to be drawn out into thin wires is a physical property present in Option 4 because the composition remains constant, but it is this property that causes the metal to be drawn out into thin wires.
What are the physical and chemical properties?The metal has the ability to form thin wires; this is known as "ductility" and can be seen in gold, for example; this is a physical property of the metal. The physical change involves a change in shape and size, and the transition from one state to another is seen. Chemical change is related to the chemical composition of the substance.
Hence, the ability of a metal to be drawn out into thin wires is a physical property present in Option 4 because the composition remains constant, but it is the property that causes the metal to be drawn out into thin wires.
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What effect would a mutation have on a protein if the codon sequence GUU changes to GUA
A.there is no effect on the activity of the protein.
B. A different protein will result from the new amino acid sequence.
C. The codon will now code for the amino acid glutamine.
D. The protein would not function correctly
What can be a recessive or dominat??
Answer: There are many examples of recessive traits in non-human animals as well. In dogs, traits like yellow fur, white spots, and smooth hair are recessive. In cats, white fur, brown (as opposed to black) fur, and long hair are recessive traits. In sheep, black wool and blue eyes are recessive.
Also Dominant refers to the relationship between two versions of a gene. Individuals receive two versions of each gene, known as alleles, from each parent. If the alleles of a gene are different, one allele will be expressed; it is the dominant gene. The effect of the other allele, called recessive, is masked.
There are many examples of recessive traits in non-human animals as well. In dogs, traits like yellow fur, white spots, and smooth hair are recessive. In cats, white fur, brown (as opposed to black) fur, and long hair are recessive traits. In sheep, black wool and blue eyes are recessive.
Hope this helps
diferencia entre los tejidos vasculares xilema y floema
Answer:
El xilema es un tejido vascular que transporta agua y minerales disueltos absorbidos desde las raíces al resto de la planta. El floema es un tejido vascular que transporta compuestos orgánicos solubles preparados durante la fotosíntesis desde las partes verdes de la planta al resto de la planta.
Explanation:
Which strategy is most likely to prevent food-borne illnesses, like salmonellosis?
PLEASE HURRY!!!!!
NO LINKS!!!!!!
CORRECT ANSWERS ONLY!!!!!!
Avoid all types of meat and other products from animals.
Treat all food products with antibiotics or disinfectants.
Practice safe food handling and cook foods thoroughly.
Inoculate people with vaccines that prevent infections.
Answer:
Practice safe good handling and cook foods throughly
Explanation:
Because by practicing safe cooking habits you can cook off some viruses and germs.
Why didn’t the greatest heart anatomist in history, Leonardo da Vinci, discover this simple technique that would prove that it was a pump?
Answer:
He found that the heart had four chambers and it connected the pulse in the wrist with the contraction of the left ventricle. He worked out that currents in the blood flow, created in the main aorta artery, help heart valves to close. And he suggested that arteries create a health risk if they fur up over a lifetime.
Explanation:
Leonardo da Vinci, being an anatomist, was limited by the technology and knowledge available during his time, which prevented him from discovering the simple technique that would prove the heart's pumping action.
Leonardo da Vinci lived during the Renaissance period (1452-1519), a time when scientific knowledge and understanding of anatomy were still in their early stages. While da Vinci made significant contributions to the field of anatomy, including detailed drawings and observations of the heart's structure, the concept of blood circulation.
The discovery of the heart's true function as a pump and the understanding of blood circulation came later in history, with the groundbreaking work of William Harvey in the 17th century. Harvey's detailed studies and experiments on the heart and blood vessels provided compelling evidence for the heart's role as a pump and the circulation of blood.
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Herbicides are used to kill weeds or plants growing where they are not wanted. A crop of corn has been genetically modified so that it is resistant to a type of herbicide that kills several species of weeds that commonly grow in the fields and interfere with growth of the corn crop.
Which question would help determine whether the corn is expressing the gene that provides herbicide resistance?
Which of the following trees is a gymnosperm?
dogwood tree
apple tree
pine tree
oak tree
What do these have in commmon?
friction, air resistance, pushing a box
What is a mutation? Any change in DNA that may or may not affect the protein produced, Any change in DNA that has positive effect on an organism, Any change in DNA that has a negative effect on an organism
Answer:
Any change in DNA that may or may not affect the protein produced.
Place the steps of translation in the correct order.
1-The polypeptide continues to grow
by adding more amino acids.
2-The polypeptide or protein is
released from the ribosome.
3-The stop codon is reached.
4-The start codon is matched with a
transfer RNA's anticodon.
5-The messenger RNA bonds with a
ribosome.
Answer:
4 1 5 2 3
Explanation:
Help please! I haven't read The Immortal Life of Hennrietta Lacks and need help with this! Due today!
Paleontologists study ______________________________.
a
plants
b
living things
c
fossils
d
oceans
Answer:
A paleontologist is a scientist who studies the history of life on Earth through the fossil record. One example is dinosaur fossils. Paleontologists will examine fossilized droppings in order to see what the dinosaurs ate! Hope this helps! A scientist who studies plants is called a Botanist. A scientist who studies living things is a biologist, and a scientist who studies the ocean is called a oceanographer.
C is the answer. Happy learning!
Which shape has four equal side lengths? (2 points) a a quadrilateral with one small square in each of the four corners, and single arrows going in the same direction for one pair of the opposite sides and double arrows for the other pair of opposite sides b a quadrilateral with double arrows going in the same direction for one pair of the opposite sides c a quadrilateral with sides of different lengths d a quadrilateral with a short line on each side
Answer:
D. a quadrilateral with a short line on each side
Explanation:
This question is describing a SQUARE, which is a quadrilateral with four sides equal. A square has four angles as well, which are of equal sizes as well i.e. 90% each.
A quadrilateral with one small square in each of the four corners showing that each angle is a right angle (90°). In a square, same line are on each side showing that any side with the short line has the same length, hence, all sides have an equal length.
Answer:D
Explanation:
a section of DNA on a chromosome that has genetic information for one trait.
PLEASE HELP ME WITH MY BIOLOGY PROBLEM!! WILL GIVE BRAIN?!
How does geography influence climate?
Answer:
Geography affects the weather in many ways. ... Topographical features like mountains affect the weather mostly in the way that they direct air currents. For example, air is forced to rise over mountains. Moist air will cool as it rises, and then the clouds release the water, causing precipitation like rain or snow.
Explanation:
base on research.. hope it helps