Answer:A scientific theory is a broad explanation for events that is widely accepted as true. Evolution is a change in species over time. Evolution occurs by natural selection. The cell theory states that all living things are made up of cells, and living cells always come from other living cells.
Explanation:
3. In what part of Australia are koalas found? What do they eat?
Answer: Koalas can be found in Eastern Australia - Through much of Queensland (From the Atherton Tablelands west of Cairns moving South), NSW, Victoria and a small section of South Australia. And Koalas eat Eucalyptus leaves.
Explanation:
_trophs often make their own food using sunlight,
carbon dioxide, and water.
Any body please help please thank you so muchhhhh
Answer:
Autotrophs
Explanation:
Hope this is helpful
Which of the following is NOT used in logos?
Answer:
Legos i am pretty sure
Explanation:
At Happy Harry’s Laundromat, the dryer costs $1.50 for 10 minutes. At Jolly Judy’s Laundromat the dryer costs $2.25 for 15 minutes. Which laundromat offer the better deal?
Bacteria cells can be used to produce insulin for the treatment of diabetes in humans. Which best explains how the bacteria cells are able to produce insulin for humans? (8.L.2.1) *
A. The bacteria have been grown on a petri dish containing insulin.
B. The bacteria have been genetically engineered to contain the DNA needed to produce insulin.
C. The bacteria have been exposed to radioactivity to create mutant strains capable of producing insulin.
D. The bacteria have been grown on a petri dish containing sugar; the bacteria produce insulin in response to the sugar.
Answer:
Your answer is B), I took this quiz already.
The statement 'bacteria have been genetically engineered to contain the DNA needed to produce insulin'' BEST explains how bacterial cells are able to produce insulin for humans (Option B).
Recombinant DNA (rDNA) refers to the genetic engineering strategies used to create genetically modified organisms capable of expressing exogenous DNA sequences.The rDNA technologies involve the use of specific proteins that cut (restriction enzymes) and paste (ligase enzymes) target nucleotide (DNA) sequences in order to design organisms containing such sequences.The recombinant DNA can be expressed into a suitable vector (in this case, bacteria) in order to produce a protein of interest (e.g., insulin).In conclusion, the statement 'bacteria have been genetically engineered to contain the DNA needed to produce insulin'' BEST explains how bacterial cells are able to produce insulin for humans (Option B).
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2. Wolves have genes that give them a very powerful sense of smell much more
powerful than humans, this is an adaptation by natural selection. The wolves that
reproduced more offspring with a better sense of smell thereby increasing the
frequency of those genes in the population that survived longer. Give an example of
adaptations in other organisms that may have resulted from variations that were
favored by natural selection.
Answer:
A good example may be represented by different shapes and sizes of beaks in finches living on different Galapagos islands
Explanation:
According to the evolutionary theory proposed by Darwin, natural selection is a mechanism that acts on heritable phenotypic variation among individuals within a population. Genetic variation can be considered as the primary source of heritable phenotypic variation. Those organisms that are better adapted for a particular environment will have more chances to survive and reproduce, thereby passing these heritable traits to the next generation. For example, during his work, Darwin observed that the shape and size of beaks in finch species from different islands in the Galapagos archipelago varied as a consequence, i.e., as an adaptation, to the availability of food resources present in each island.
An example of adaptations in other organisms that may have resulted from variations that were favored by natural selection. - The light-colored mice are an adaption favored by natural selection as they were able to live longer.
Adaptations are physical or behavioral traits that make an organism better suited to its environment. The inheritable variation comes from random mutations.
the example of such variations caused by natural selection are:
The Deer mouse adapted to the environment by developing a lighter color.The light-colored mice were able to live longer.Thus, The light-colored mice are an adaption favored by natural selection as they were able to live longer.
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Which of these is NOT an organ found in the excretory system that helps to filter out liquid wastes in our body?
-kidneys
-lungs
-Skin
-heart
Answer:
the heart
Explanation:
Describe what happens to the egg during the menstrual cycle on day 14. _______________________
Answer:Ok so A few days before Day 14, your estrogen levels peak and cause a sharp rise in the level of luteinizing hormone (LH). LH causes the mature follicle to burst and release an egg from the ovary, called ovulation, on Day 14.At about day 14 in the menstrual cycle, a sudden surge in luteinizing hormone causes the ovary to release its egg. The egg begins its five-day travel through a narrow, hollow structure called the fallopian tube to the uterus. hope this helps have a nice night ❤️❤️❤️
Explanation:
Answer: Because However, during days 10 to 14, only one of the developing follicles forms a fully mature egg. At about day 14 in the menstrual cycle, a sudden surge in luteinizing hormone causes the ovary to release its egg. The egg begins its five-day travel through a narrow, hollow structure called the fallopian tube to the uterus. The egg travels down the fallopian tubes. If pregnancy doesn't occur, the egg is reabsorbed into the body. Levels of oestrogen and progesterone fall, and the womb lining comes away and leaves the body as a period (the menstrual flow). The time from the release of an egg to the start of a period is around 10 to 16 days.
Explanation:
if an object has a mass of 580g what does it weigh
Always convert first to kg
So 580 g is 0.58 kg
Now it depends on which planet you are on, to what gravity the planet has. Lets go with Earth so 10N
0.58 x 10= 5.8
Ans) 5.8 N/kg
What are some of the main characteristics of life?
The Characteristics of Life Living things include both the visible world of animals, plants, and fungi as well as the invisible world of bacteria and viruses. On a basic level, we can say that life is ordered. Organisms have an enormously complex organization.
Explanation:
Why is the use of stem cells to produce new specialized cells, which can replace a body's damaged cells and cure disease, creating a controversy?
Answer:
human embryonic stem cells are obtained from embryos, thereby they are subject to ethical, religious, political and legal considerations
Explanation:
Human embryonic stem cells (HESCs) are pluripotent undifferentiated cells derived from blastocyst-stage embryos, which have the ability to produce any type of somatic cells. HESCs are obtained in vitro from embryos that are 5-6 days old. These cells are valuable tools in research in order to understand the genetic and physiological mechanisms of human development, as well as to develop treatments against diseases. The use of embryonic stem cells in research is controversial because these techniques involve the destruction of human embryos, and there are people who consider human life begins with the formation of the diploid zygote after fertilization, thereby raising the debate if a human embryo can be regarded as a human being.
What is the function of T-lymphocytes? Select all
that apply.
to assist other lymphocytes
to produce other lymphocytes
to kill cells infected with a virus or cancer
to help in the body's immune response
to circulate oxygen throughout the body
Answer:
to assist other lymphocytes
to kill cells infected with a virus or cancer
to help in the body’s immune response
Explanation:
Following are the functions of T-lymphocytes, here:
to assist other lymphocytesto kill cells infected with a virus or cancerto help in the body's immune responseWhat are T-lymphocytes?
T-lymphocytes, also known as T cells, are a type of white blood cell that plays a key role in the immune system. They are produced in the bone marrow and mature in the thymus gland.
One of the main functions of T-lymphocytes is to assist other lymphocytes, such as B cells, in the immune response. They do this by releasing chemicals that help to activate and coordinate the immune response, and by directly attacking infected cells.
T-lymphocytes also have the ability to kill cells that are infected with a virus or cancerous cells. They do this through a process called cell-mediated immunity, in which they recognize and bind to specific proteins on the surface of infected cells. Once they have bound to the infected cells, they release chemicals that kill the cells, helping to prevent the spread of the infection or cancer.
T-lymphocytes are an important part of the body's immune system and play a vital role in helping to protect the body against infections and disease.
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Based on the cell theory, which of the following is true? (5 points) a All cells perform the same function. b All cells are of the same size and shape. c Organisms can have only one or many cells. d Cells vary in size depending on the size of the organism.
Answer:
C is the correct one
Explanation:
Answer:
The answer is C. Organsims can have only one many cells.
Explanation:
Hope this is helpful!!
List two types of chemical erosion
Answer:Oxidation and Hydrolysis
Answer:
The most vivid examples of chemical erosion are caves and sinkholes created in areas with a lot of underground limestone that ends up dissolving from acidic groundwater.
Explanation:
Hydrolysis - the breakdown of rock by acidic water to produce clay and soluble salts. Oxidation - the breakdown of rock by oxygen and water, often giving iron-rich rocks a rusty-coloured weathered surface.
You can use either examplesWhat is a change in an organism that allows for it to survive in its
environment?
A.homologous
B.vestigial
C.variation
D.adaptation
Answer:
d adaptation
Explanation:
its an adaptation because its a change that helps the organism survive
Which of the following are included as tools of biotechnology when using living cells and their components in different ways?
A.
working with cells, working with climate, working with molecules
B.
working with genes, working with breeders, working with proteins
C.
working with climate, working with breeders, working with molecules
D.
working with cells, working with proteins, and working with genes
PLEASE HELP! MARKING BRAINLIEST
Answer:
D. working with cells, working with proteins, and working with genes
Explanation:
Biotechnology is referred to as the application of genetic principles on living organisms in order to make useful products. Biotechnologist aims at studying the genetic composition of certain cells and manipulating it to make useful products.
According to this question, working with cells, working with proteins, and working with genes are included as tools of biotechnology when using living cells and their components in different ways.
11 - Lulu the Lioness: A Heroine's Story
Answer:
lion as a highly social animal present a number of issues when it comes to knowing parentage: there can be multiple males in a group mating with many of the female, females raise the young of other pride member.
Animal use chlorophyll to produce glucose.
True
False
Animals use chlorophyll to produce glucose. This is a false statement. Hence, the correct answer is second one . Animals are not autotrophs but heterotrophs.
What is photosynthesis?Photosynthesis is a process in which oxygen and glucose are produced from carbon dioxide and water with the help of sunlight in green plants. This reaction is carried out by the green plant because it consists of chloroplasts.
The chloroplast is the organelle that has chlorophyll pigment, and this pigment is responsible for the photosynthesis process. Due to this, plants are called producers. Animals depend upon the plant for food and are called heterotrophs. Animals cannot do photosynthesis.
In different ecosystems, different producers are present, such as in aquatic ecosystems, where algae and seaweeds perform this function. In terrestrial ecosystems, plants perform this photosynthesis. Consumers feed them depending on the producers, and after both the consumer and the producer die, both are decomposed by decomposers.
Hence, animals use chlorophyll to produce glucose; this is the false statement.
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Please help with these questions!!
What characteristics of the molecules being transported determines how they will cross the membrane?
A. Polarity and size
B. Size and mass
C. Passive or active
D. Charge and structure
In pea plants, tall (T) is dominant to short (t), and green (G) is dominant to yellow (g). Two parents who are heterozygous for both traits are crossed. What are the possible gametes from the parents genotypes? Why do gametes only have one allele per trait?
Remember to use the FOIL method!
You will have 4 possible answers.
Answer:
TG, Tg, tG, tg
Gametes only have one allele per trait because of meiosis. Meiosis is a two-stage process. Before that stage, the cell is diploid, with two versions of each allele. Afterward, only one version of each chromosome gets sent to each daughter cell. Those daughter cells become gametes, and they each have only one version of each allele.
Explanation:
The parents would be TtGgxTtGg because they are heterozygous.
Think of FOIL like this... (Tt)(Gg) and multiply outer and inner
TG
Tg
tG
tg
please help me i need it please
Answer:
first one is false
Explanation:
8. Which of these is the direct result of an error in the transcription of a DNA
nucleotide?
A. Amino acids do not bond to tRNA.
B. Transportation of mRNA does not occur.
C. The nuclear membrane is ruptured.
D. RNA sequence is incorrect.
CLEAR ALL
Answer:
D. RNA sequence is incorrect.
Explanation:
Genome editing can be defined as a high-tech process which avail scientists the opportunity or ability to remove (delete), replace and insert Deoxyribonucleic Acid (DNA) sequence in a living organism such as bacterias, animals, plants etc in order to correct a genetic disorder and to improve on their physical and chemical conditions.
Transcription can be defined as a process which typically involves re-writing the informations contained within a Deoxyribonucleic Acid (DNA) into a Ribonucleic Acid (RNA) by enzyme RNA polymerase.
When a RNA sequence is incorrect, it leads to an error in the transcription of a DNA nucleotide.
This ultimately implies that, an error in the transcription of a DNA nucleotide is the direct result of an incorrect codon sequence (RNA nucleotides).
I understand what earth outer layer is made of underneath the water and soil on the surface
Yes
Or
Not yet
Explain
The planet earth being a terrestrial planet is made up of rocks and hard rigid slabs of rocks called plates. These plates float on the flexible (asthenosphere) Mantel.
I understand that earth is a rocks planet and is made up of rocks and these rocks are called plates.
This uppermost layer or the crust of the lithosphere is composed of SIAL that is rocks made from aluminum and silicon, oxygen components. The layer lying below this is made from the semi-fluid matter called as upper mantel that is the asthenosphere which is partly molten and is said as molten rock. Due to the less dynamicity of this layer the above crust floats or drifts.Hence the water and soil in the lithosphere are characteristic of the crustal rocks.
brainly.com/question/21338656.
A biology student was observing a specific type of cell. It had DNA,
ribosomes, and cytoplasm. What type of cell was she probably
observing
Answer:
she was probably observing a prokaryotic cell.
Explanation:
:)
HELP!
In the desert, saguaro cacti, owls, horned lizards, and fire ants all share the same space.
Which example can be considered a population?
the lizards and the ants
all plants in the same area
all species in the same area
all saguaro in the same area
Answer:
I did the test; proof
what characteristics describes an old river
Answer:
Rivers possess different features as they age. Old rivers usually have a low stream (gentle) gradient and low erosive energy. They usually have broad U shape, the water is usually brown and they have flood plains. Seasonal floods are also common.
Why does our body need to turn ADP into ATP?
what cellular processes happen during mitosis?
Answer:
the eukaryotic cell undergoes many phases to result in two daughter cells.
prophase
prometaphase
metaphase
anaphase
telophase
Answer:
A eukaryotic cell goes through a few (4) phases to split into two identical daughter cells.
Explanation:
Prophase, metaphase, anaphase, and telophase are the 4 phases.
1st phase: nuclear envelope disappears and chromosomes become visble
2nd phase: chromosomes line up at the middle of the cell (metaphase plate I believe it’s called), to get ready to divide.
3rd phase: replicated chromosomes split and move to different ends/poles of the cell.
4th phase: 2 nuclei form, including 2 identical daughter cells.
Hope this helps, my bio’s kind of rusty though so I’d research this more if I were you :)
Water is a renewable resource that is constantly generated through the water cycle. The ocean contains most of the Earth's available water, but it is undrinkable because it contains salt. All but one of the reasons listed are reasons why desalination is not a popular option to have clean, drinkable water. it is expensive to desalinate water. B It could possibly affect the marine ecosystems. Transporting the water to water scarce regions is difficult. D) Since evaporation is involved in deselination, the drinking water is too hot for consumption.
Answer:
water
Explanation:
water because sory i am bored i dont have any thing to do
Answer:
D) Since evaporation is involved in desalination, the drinking water is too hot for consumptionn.