Answer:
The world's population is expected to increase by 2 billion persons in the next 30 years, from 7.7 billion currently to 9.7 billion in 2050, according to a new United Nations report launched today.
Explanation:Hope this helps :3
The world's population is expected to increase by 2 billion persons in the next 30 years, from 7.7 billion currently to 9.7 billion in 2050, according to a new United Nations report launched today.
What is the meaning of population in the world?The term world population is often utilised to refer to the whole number of humans currently living.
Thus, the above mention data is predicted.
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The mass of a perfect cube is 44 g . The density of this cube is 5.5 g/cm
Specimens are put on swings before being looked at under the microscope, true or false?
Answer:
According to what i know they are put under SLIDES not SWINGS
Explanation:
hope it helps
Describe how solar radiation reaches earth and is absorbed in emitted by earth atmosphere and surface
Answer: solar radiation
Explanation: Energy released from the Sun is emitted as shortwave light and ultraviolet energy. When it reaches the Earth, some is reflected back to space by clouds, some are absorbed by the atmosphere, and some is absorbed in the Earth's surface Shortwave radiation reflected back to space by clouds.
Hope this helps!!! have a nice day!!!
Answer: Solar radiation
Explanation: Energy released from the Sun is emitted as shortwave light and ultraviolet energy. When it reaches the Earth, some is reflected back to space by clouds, some are absorbed by the atmosphere, and some is absorbed in the Earth's surface Shortwave radiation reflected back to space by clouds.
Hope this helps!!! have a nice day!!!
Two _____________ chromosomes make up each pair and contain genes for similar characteristics.
After disrupting the CCR5 gene in the two macrophages cell lines 4 and 7 (now called edit 4 and edit 7), what will be your next experimental step to verify that these cell lines are now HIV-resistant macrophages?
Answer:
cell lines should be resistant to HIV infection, thereby preventing its integration into the host genome. In consequence, verification can be done by measuring intracellular HIV DNA declines (for example, by real-time quantitative PCR).
Explanation:
HIV (human immunodeficiency virus) is an RNA retrovirus that infects components of the human immune system including, among others, macrophage cells. After infection, the HIV genome is reverse transcribed into DNA and integrated into the genome of the host cells, thereby enabling virus to replicate its genetic material and synthesize protein viral components. Monocyte-like cell lines are able to differentiate into macrophages. When immune cell lines (both monocyte and macrophage cell lines) become resistant to this virus, HIV genome integration is inhibited, affecting the replication cycle of HIV. Thus, it is possible to verify that viral integration did not occur by measuring intracellular HIV DNA declines.
The fumarase enzyme catalyzes the chemical conversion of fumarate to malate in the
cell. This biochemical reaction is required for aerobic respiration, which statement
describes the reaction without the enzyme?
A lt occurs but at a significantly slower rate
B It cannot occur because there is no reactant
C It occurs but at a faster, poorly regulated rate
DIt cannot occur because it lacks an energy source
Answer:
Enzymes make possible endergonic reaction without energy supply, Enzymes ... 23, 1, The energy required to start an enzymatic reaction is called: Activation energy, Chemical
Explanation:
Wildlife is losing the fight against the loss of ___ which is needed for survival.
a. prey
b. government programs
c. habitat
d. forest
Which item listed below is NOT considered an element? Calcium Water Phosphorus Sulfur
Answer:
The answer is Water
Why are there less secondary consumers in an ecosystem than producers? (1 point)
There isn't enough energy available to support more secondary consumers.
Around 90% of energy from one trophic level to the next is available.
More tertiary consumers will eat secondary consumers over producers.
There is less land to use for habitat after the producers grow.
Answer: There isn’t enough energy available to support more secondary consumers.
Explanation:
There isn’t enough energy available to support more secondary consumers.
What are secondary consumers?Organisms that consume primary consumers for energy are known as secondary consumers. Herbivores, or species that only consume autotrophic plants, are always the main consumers.
Secondary consumers, however, might either be omnivores or carnivores. Omnivores consume both plant and animal stuff, while carnivores solely consume other creatures.
Secondary consumers can be found in almost every environment on earth and occur in a wide variety of sizes and shapes. The severe habitats that secondary consumers reside in include icy tundras, parched savannahs, and arctic lakes.
Therefore, There isn’t enough energy available to support more secondary consumers.
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A Frameshift mutation could result from?
A piece of metal is 2 cm by 5 cm 2 cm . Find if its mass if it has a density of 2 g/cm^3
Explanation:
Length = 2cmbreadth = 5cmheight = 2cmvolume of metal = 2×5×2 = 20cm^3density = 2 g/cm^3density = mass / volumemass = density × volume mass = 2 × 20mass = 40kg I HOPE THAT THIS ANSWER HELPS YOUC.
UE341
b. frog
37.Ophiology is the study of
a. Lizard
c. snake
d. fish
Answer:
c. snake
Explanation:
A snake refers to a cold-blooded living organism that does not have leg such as cobra, python, anaconda, viper etc.
Ophiology can be defined as the study of snake.
Basically, ophiology is a branch of a field in science known as herpetology, which deals typically with the study of amphibians and reptiles such as lizards, frogs, snakes, crocodile, alligators etc.
Therefore, an individual who is an expert or professional in the study of snakes is generally referred to as an ophiologist.
What happens if human cells contribute to the growth of a chimera brain? Should the chimera be considered a person
Answer:
No. it should be considered its kin (Kind) as a chimera
Explanation:
The reason why is because lets say we have a human. Totally normal and fine, but then there cell's get all jittery and there mind gets transformed. So then they start acting like a wolf, because the cells contributed to the growth of a wolf brain. They'd be considered a Were-Wolf then would be put in asylum to be studided and to keep humanity safe. So yes by law they are still a person. But in consideration, No they are not to be considered a person.
List 2 consumer - consumer relationships from the web.
PLEASE HELP ME! I DONT HAVE A LOT OF TIME tyty
The point of critical thinking is to learn to
A.
distrust all opinions other than your own.
B.
learn to accept the views of real authorities.
C.
trust only your own experimental results.
D.
weigh all the evidence and draw your own conclusions.
E.
identify true experts in a field.
A mother and father are curious about the possibility of having children of certain blood types. After some testing, the doctor tells them there is no chance that either of them will ever have a child with type O blood, no matter their partner. He does assure them that all of their children will have the same blood type. On the other hand, none of the children will have the same blood type as either the mother or the father. What blood type will the children be?
The blood type that the children won't have O blood type because the doctor says so and the children will not have the same blood type. This means that the children's blood type will likely be type A or Type B.
In rabbits, short hair (S) is dominant over long hair (s). What genotype and phenotype ratios are expected from a cross between two heterozygous shorthaired rabbits? I need you to fill out this chart I got the answer to the ratios
Answer:
Answer:
Genotype Phenotype
SS 1/4 Short hair 3/4
Ss 2/4 Short hair 3/4
ss 1/4 Long hair 1/4
Explanation:
Both are heterozygous for the trait so we can expect that the cross would be:
Ss x Ss
S s
S SS Ss
s Ss ss
So the resulting off-spring would have the following genotype and phenotype:
1 out of 4 will have a genotype of SS.
2 out of 4 or half will have a genotype of Ss.
1 out of 4 will have a genotype of ss.
But because short hair is dominant the phenotype ratios would differ because Ss and SS would express short hair, so we add up their ration:
Short hair: 1/4 + 2/4 = 3/4
Long hair: 1/4
So in summary:
Genotype Phenotype
SS 1/4 Short hair 3/4
Ss 2/4 Short hair
ss 1/4 Long hair 1/4
Explanation:
12. Which of these kingdoms contains the largest number of species?
Monera
Protista
Animalia
Plantae
Answer:
The third one- animalia
Explanation:
CORRECT GETS BRAINLIEST!!!!!
Fill in the blank (It's an analogy)
Pear is to Green as Apple is to ____
Answer: Red
Pears are green and apples are red so the answer to the question is red.
We know that apples are red so that is the answer.
Which of the following cell processes is NOT considered a type of asexual reproduction?
A. meiosis
B. fragmentation
C. binary fission
Answer: A - Meiosis
Explanation: Asexual reproduction always results in daughter cells that are identical to the parent cells. In Meiosis, the daughter cells have half of the number of chromosomes of the parent cells. Meiosis is used in sexual reproduction, while fragmentation and binary fission are used by asexual organisms.
Which of the following is an autoimmune disorder?
A.
type 2 diabetes
B.
sickle cell anemia
C.
multiple sclerosis
D.
cancerWhich of the following is an autoimmune disorder?
A.
type 2 diabetes
B.
sickle cell anemia
C.
multiple sclerosis
D.
cancer
Answer:D
Explanation:
Multiple Sclerosis is an autoimmune disorder. Therefore, option (D) is correct.
What is multiple sclerosis?Multiple sclerosis (MS) is an autoimmune disease that affects the central nervous system. It occurs when the immune system mistakenly attacks and damages the myelin sheath, the protective covering of nerve fibers in the brain and spinal cord.
This leads to a range of symptoms that can vary greatly from person to person, including fatigue, vision problems, numbness, muscle weakness, and difficulty with coordination and balance.
The cause of MS is not yet fully understood, but it is believed to involve a combination of genetic and environmental factors. There is currently no cure for MS, but treatments are available to manage symptoms, slow the progression of the disease, and improve quality of life for those affected.
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Matching a person's appearance to a DNA sample involves what technique?
Answer:
DNA Phenotyping
Explanation:
This is kind of similar to DNA Profiling only DNA Phenotyping deals with Forensics this helps track down any suspects and identifying a victim this can also help people look at a person's ancestry history.
Hope this helped :)
DNA phenotyping is used to match the appearance of a person with the sample of DNA.
What is DNA phenotyping?The phenotype of an organism is find with the help of genetic information collected from the sequences of DNA by DNA phenotyping. It is mainly used to determine the physical appearance of the person that comes out to be a great help in forensics.
Thus, the DNA phenotyping is used to match the appearance of the person with the sample of DNA.
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Explain what will happen to the red blood cell if it is placed in a solution that is 90% water and 10% salt. Is the cell hypotonic or hypertonic to the solution?
Answer:
Hypertonic, and the cell will burst.
Explanation:
Assuming that the red blood cell has equal concentrations of water and salt at the start, the cell has a greater percentage of solute concentration than the solution that it's placed in, which makes the cell hypertonic to the solution. Because of this, water from the solution will diffuse into the cell, going from an area of low solute concentration to high solute concentration. As the water rushes into the cell, the red blood cell will burst.
When the red blood cell is placed in a solution that is 90% water and 10% salt, this will lead to a hypertonic solution and the cell will burst.
Red blood cells refer to the form of blood cell that is found in the blood and made in the bone marrow. A protein that's referred to as haemoglobin can be found in red blood cells. This is important to the human body as it helps in carrying oxygen from the lungs to other parts of the human body.A hypertonic solution refers to a solution that is made up of more dissolved particles like salt than what is contained in a normal cell.In this case, if there is an equal concentration of salt and water, then the addition of water and salt will make the concentration hypertonic since there's a higher concentration of salt.In conclusion, there is an increase in water which will lead to the water diffusing into the cell and will eventually burst the red cells due to the rush of the water.
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Muscle twitching can be explained by the_____ action of synapse.
A. Cell signaling
B. temporal summation
C. spatial summation
D. all for nothing response
Temporal summation.
︎ ︎ ︎︎ ︎ ︎ ︎ ︎︎ ︎︎
︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎︎
︎
︎ ︎
︎ ︎ ︎
Muscle twitching can be explained by the temporal summation action of synapse. Thus, the correct option is B.
What is Muscle twitching?Muscle twitching is also called as muscle fasciculation. Muscle twitching involves a small muscle contraction in the body muscles. Muscle twitches are caused by the muscles tightening up or contracting involuntarily. In other words, it occurs when we are not actually controlling their actions. Muscle twitches can happen for a lot of reasons, such as stress, too much caffeine, a poor diet, exercise, or as a side effect of medicines.
Temporal summation is a physiological effect when the second muscle twitch becomes much higher than the first twitch, forming a tension in the muscle fiber. This happens because, after the first twitch of the muscle, the second stimulation is applied before the muscle even relaxes however both the stimuli are of equal strength.
Therefore, the correct option is B.
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what is the difference between facts theory and hypothesis
Answer:
Fact: Observations about the world around us. ... Example: “It's bright outside.” Hypothesis: A proposed explanation for a phenomenon made as a starting point for further investigation.
in Mendel's crosses.of pea plants, he called the one trait that masks the other
Answer:
dominant trait
Explanation:
HELLLLLp ill give 100 points
Cell death is always a harmful and negative process for an organisms.
Question 1 options:
True
False
Question 2 (2 points)
Saved
Which of the following events happens during Translation?
Question 2 options:
a new mRNA molecule is made
new tRNA molecules are made
DNA splits in half and moves into the cytoplasm
different types of RNA work to create an amino acid chain
Question 3 (2 points)
What is the complementary mRNA for the DNA strand shown above?
Question 3 options:
CAAAUG
UATACG
ATUGTG
CTAGU
Question 4 (2 points)
What is the benefit/value of studying a simple worm like C. elegans?
Question 4 options:
because humans can use C. elegans as food source (they are quite delicious!)
there is actually no benefit of studying C. elegans
because we can gain insights into human genetics and development
because C. elegans can potentially kill humans
Question 5 (2 points)
Which of the following contains the base Uracil?
Question 5 options:
DNA
both DNA and RNA
neither DNA or RNA
RNA
Question 6 (2 points)
Which letter in the picture above identifies a "chromosome"
Question 6 options:
E
C
B
A
D
Question 7 (2 points)
How do enzymes speed up a biological reaction?
Question 7 options:
by raising the activation energy
by transporting chemicals
by using activation energy
by lowering the activation energy
Question 8 (2 points)
What process is responsible for the the different types of cells in an organisms body?
Question 8 options:
programmed cell death
differentiation
mitosis
osmosis
Question 9 (2 points)
In DNA and RNA, what carries the code for amino acids”?
Question 9 options:
combination of sugars
combination of phosphates
combination of strands
combination of nucleotides/nucleobases
Question 10 (2 points)
Amylase is a protein that speeds up the breakdown of starch. This is an example of what protein function?
Question 10 options:
signaling
transporting
storing
catalyzing
Question 11 (2 points)
Which of the following statements is true?
Question 11 options:
a chromosome contains many genes
a DNA strand is made of many chromosomes
a chromosome is larger than a cell
a gene contains may chromosomes
Question 12 (2 points)
Which of the following events happens during Transcription?
Question 12 options:
a mRNA strand is created using the code in DNA
a new DNA strand is created from the amino acid sequence
a new ribosome is created
a sequence of amino acids is made
Question 13 (2 points)
What type of RNA carries a code from the nucleus to the cytoplasm that determines the order of amino acids in a protein?
Question 13 options:
ribosomal RNA
messenger RNA
nuclear RNA
transfer RNA
Question 14 (2 points)
Proteins perform many important functions in cells.
Question 14 options:
True
False
Question 15 (2 points)
What codes for RNA?
Question 15 options:
Protein
tRNA
DNA
ribosome
Answer:
where is the questions dude???!?
What is true of maple trees and saguaro cactuses?
a. They are the same size.
b. They grow in different climates.
c. They have different root systems.
d. They need the same amount of water.
Maple trees and Saguaro cactuses both the plants grow in different climates. Thus, the correct option is b.
What are Maple trees and Saguaro cactuses?Most of the maple trees prefer to live in the cool temperature regions such as in the USDA plant hardiness zones 5 through 9, but a few of the cold-hardy maples can also tolerate sub-zero winters in the zone 3. In the regions of United States, zone 3 includes all the parts of South and North Dakota, Alaska, Minnesota, and Montana as well.
Saguaro cacti has the scientific name, Carnegiea gigantea. This plant only grows in the Sonoran Desert. However, they do not grow in all the parts of the Sonoran Desert. These plants are found in warmer climates generally.
Therefore, the correct option is b.
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What are the different portions of a phospholipid? What are their properties?
Answer:
A phospholipid is a lipid made of glycerol, two fatty acid tails, and a phosphate-linked head group
Earthquake damage depends on many factors including the location of the epicenter where would an earthquakes epicenter be in this diagram
Answer:
A. On Earth's surface, directly above where the fault slippage begins.
Explanation:
The subsurface location where an earthquake begins is known as the hypocenter or focus. The epicenter is the point straight above the focus on the Earth's surface. The correct option is A.
What is earthquake epicenter?The epicenter is the point on Earth's surface that is vertically above the hypocenter (or focus), which is the point in the crust where a seismic rupture commences.
The seismic waves that cause the ground to shake are caused by this abrupt energy release.
The plates or blocks of rock begin to move during and after the earthquake, and they continue to move until they become stuck again. The focus, or hypocenter, of an earthquake, is the location underground where the rock first breaks.
The hypocenter or focus is the subsurface location where an earthquake begins. On the Earth's surface, the epicenter is the point directly above the focus.
Thus, A is the correct answer.
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