Answer:
1.true
2.false
3.false
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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Please help me with this question
Answer:
A
Explanation:
Answer:
answer (A)
Explanation:
Has anyone done this Sexual vs Asexual Reproduction before?
Answer:
Explanation:yes
Answer: for the genetic variation, the offspring gets a allele from each parent.
Explanation:
Yes
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Which of the following events would most likely contribute to lowering the carrying capacity of a population?
A.
an increase in the water supply in the habitat
B.
a decrease in habitats due to human development or natural disasters
C.
an increase in the number of predators who eat the animal
D.
a decrease in the number of females in the population
Answer:
a decrease in habitats due to human development or natural disasters
Explanation:
its right and brainliest
Answer:
For the other person to get Brainliest
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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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
what is the scientific name for human??
Answer:
HomoSapiens
Explanation:
This is a astronomy true or false question.
True or false: constellations represent physical connections between
their stars.
Answer:
true
Explanation:
Answer:
True
Explanation:
Hope it helps!!
look at the following images, then in your own words, describe how they are different.
Answer:
they have different locations of where the foods are located
Specialized cells have different dna from other specialized cells
Answer: for example in a nerve cell are different from the genes that are expressed in a muscle cell. Both cells have the same DNA, but expressing different genes generates different cell types.
Explanation:
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.
Which of these is an effect of desertification? A loss of fertile land to farm B more farmland to grow food C more biodiversity worldwide D cooler global temperatures
What type of consumers are secondary consumers?
Answer:Tertiary consumers eat the secondary consumers and are usually carnivores (meat eaters).Secondary consumers are organisms that eat primary consumers for energy. Primary consumers are always herbivores, or organisms that only eat autotrophic plants. However, secondary consumers can either be carnivores or omnivores. Carnivores only eat other animals, and omnivores eat both plant and animal matter.
Explanation:
hope this helps❤️❤️❤️
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:
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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Red blood cells: send messages protect the body support bones transport oxygen
Answer:
Transport oxygen.
Explanation:
Red blood cells transport oxygen throughout the body with the help of hemoglobin.
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 :)
1. Janica placed an ice cube in her thermos of hot coffee. Which of the following
describes the change to the energy in the system?
A. Energy was transferred from the coffee to the ice cube, but the total energy in the
system remained constant.
B. Energy was transferred from the ice cube to the coffee, but the total energy in the
system remained constant.
C. Energy was transferred from the ice cube to the coffee, and the total energy in the
system decreased.
D. Energy was transferred from the coffee to the ice cube, and the total energy in the
system increased.
Answer:
I think A
Explanation:
According to the text, what gas is generated in especially large amounts when
we burn fossil fuels?
A. carbon dioxide
B. methane
С. carbon monoxide
D. sulfur dioxide
Answer:
A. Carbon dioxide
Explanation:
When burning anything it will release some kind of gas. When it comes to fossil fuels, it releases large amounts of carbon dioxide. Although these fossil fuels are good for energy they will hurt the environment and atmosphere.
Answer:
carbon dioxide
Explanation:
have a great day :)
in what ways does the domestic cat appear to be adapted to where and how it lives?
Answer:
Over time the Cat gets used to it's surroundings and routines of the people around it, soon the cat adapts to these surroundings.
Explanation:
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.
Fill In The Blank
What is the strongest acid listed in 2-2?
What is the weakest acid listed in 2-2?
What is the strongest base listed in 2-2?
Answer:
Strongest acid is hydrochloric acid
Weakest acid is rainwater
Strongest base is sodium hydroxide
Explanation:
pH is defined as the measure of hydrogen ion concentration in a particular solution. pH values seen between 0 and 1 are actually known to be strongest acids. Weakest acids are the ones that move towards neutrality. The neutral pH value is 7.0.
Looking at their pH values, we will discover that hydrochloric acid is the strongest acid. Rainwater is weakest acid because it moves towards neutrality. Sodium hydroxide is the strongest base.
In pH, values between 0-6 are referred to being acidic, 7 is neutral and while 8-14 are basic.
Answer:b
Explanation:
Which plays a major role in determining which genes are expressed in a cell?
A. transcription factors
B.nothing, it is random
C.translating into spanish
D.your mother
Answer:
A.
Explanation:
A crucial component of controlling transcription is played by proteins known as transcription factors. These crucial proteins aid in identifying the genes that are active in each of your body's cells. Thus, option A is correct.
What is the role of transcription factors?Proteins called transcription factors control the expression of genes. They affect the transcription process, in which DNA serves as a template to create mRNA, which in turn affects protein synthesis.
Since many transcription factors are either tumor suppressors or oncogenes, cancer is linked to their mutations or abnormal regulation.
It is known that three transcription factor groups play crucial roles in human cancer.
Therefore, transcription factors play a major role in determining which genes are expressed in a cell.
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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
pls pls pls help!! i’ll give brainliest
Answer:
materials move against a concentration gradient
_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
Adenosine triphosphate, or ATP, is primarily used as
in living organisms.
O A.
a blood coagulant
O B.
a source of energy
O C.
a reproductive enzyme
O D.
a muscle relaxing hormone
Answer:
A source of energy
Explanation:
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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How do you think that wearing personal protective equipment helps to protect us from contracting airborne diseases?
Answer:
Airborne transmission may occur if patient respiratory activity or medical procedures generate respiratory aerosols. These aerosols contain particles that may travel much longer distances and remain airborne longer, but their infective potential is uncertain. Contact, droplet and airborne transmission are each relevant during airway manoeuvres in infected patients, particularly during tracheal intubation.
Explanation:
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.
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