Answer:
The correct answer is d) hypoxic areas in water bodies that limit marine and aquatic life.
Explanation:
A dead zone are oxygen-deprived regions, that is, they are large bodies of water that contain little or no oxygen, both in the depths and near the coasts in the oceans. Aquatic and marine dead zones can be caused by climate change, a product of human activity. When the temperature is high, the water does not have the same density and there is less exchange between the depths of the hydrogen peroxide and the surface water, and these no longer receive oxygen. Marine fauna, not finding the oxygen necessary for their survival, end up suffocating due to the lack of oxygen. They may also have reproductive problems and diseases, making it difficult for them to survive.
Role of mitosis in plant growth and development
Answer:
The mitosis cell division helps in vegetative growth in plants. It also helps in healing of wounds
Name the organ of locomotion of englena and chlamydomonas
Answer:
Paramecium:The primary locomotory organ is cilia which is covers the whole body of paramecium. They also have flagella as its secondary locomotary organ. Euglena: They have flagella and they move by beating up the flagella. Chlamydomonas :A flagellum is a long, whip-like projection of a cell made up of microtubules.
Describe three different measures that can be obtained from a single age distribution graph comparing males and females of a given population.
A single age distribution graph comparing males and females of a given population can provide a wealth of information. Three of the most important measures that can be obtained from such a graph are the population size, the age structure, and the gender ratio.
What is the way to measure the population size ?The population size can be determined by adding the total number of males and females represented in the graph. This is an important measure of the overall population size, and can be used to compare the population size of different countries or regions.
The age structure of the population can be determined by looking at the distribution of males and females across different age groups. This is an important measure of the demographic makeup of a population, and can be used to identify trends in population growth or decline.
Finally, the gender ratio of the population can be determined by comparing the number of males and females in each age group. This is an important measure of the overall gender balance in a population, and can be used to identify areas where there is a need for greater gender equality.
In conclusion, a single age distribution graph comparing males and females of a given population can provide a wealth of information. Three of the most important measures that can be obtained from such a graph are the population size, the age structure, and the gender ratio.
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1. Sensation is to as perception is to a. vision, olfaction b. conscious, unconscious c. awareness, interpretation d. taste, vision.
Answer:
opt (c)
Explanation:
Raw materials required in the autotrophic mode of nutrition involve:
Answer:
Water,mineral salts and carbon dioxide
What is conjugation?
A. when two haploid cells fuse and reproduce
B. when two organisms exchange information and reproduce
asexually through mitosis
C. when a cell divides and produces two identical cells
Answer:
when two organisms exchange information and reproduce
What are the two main phases of the cell cycle
Answer:
interphase and the mitotic (M) phase.
Explanation:
The stages of the cell cycle are divided into two major phases: interphase and the mitotic (M) phase.
Answer:
The interphase & the miotic phase
Explanation:
Regarding the models of cooperativity:_______.
a. the concerted model is based on the
b. T state and the sequential on the R state.
c. T state is low affinity and R state is high affinity.
d. the concerted model and the sequential model are mutually exclusive.
e. these models, strictly speaking, only apply to tetramers.
Answer:
c. T state is low affinity and R state is high affinity.
Explanation:
Hemoglobin (Hb) is a multimeric protein molecule that transports oxygen from the lungs to the body's tissues in red blood cells. Hb exists in two quaternary states: 1- a T-state or deoxygenated conformation, which is referred to as 'deoxyhemoglobin'; and 2-a R state or fully oxygenated conformation, which is referred to as 'oxyhemoglobin'. The sequential model of cooperativity states that the conformation of a multimeric protein changes with each binding of a ligand, thereby sequentially changing its affinity for the ligand (i.e., cooperativity is dependent on ligand-induced). In consequence, this model states that the conformational state and affinity of Hb monomers change as they bind to oxygen.
Which of the following controls the involuntary actions in the body
The data table and the cladogram below provide information about the evolutionary history of several different species of animal. Using this information, which of the following is true of trout?
They are more closely related to salamanders than they are to birds.
They are more evolved than salamanders and lizards.
They evolved into a separate species due to the presence of lungs.
They have jaws and lungs but lack claws or nails, feathers, and mammary glands.
Answer:
They are more closely related to salamanders than they are to birds.
Explanation:
According to the data, trout are more closely related to salamanders than birds.
The first data table shows how the salamander only has one extra trait that the trout does not have (lungs).
On the other hand, birds have three extra traits that the trout doesn't have (claws/nails, feathers, and lungs).
The cladogram further shows how trout are more closely related to salamanders compared to birds.
Trout and the salamander are closer together on the cladogram, while the bird is further away. This means they are more related on the evolutionary timeline.
So, the correct answer is that They are more closely related to salamanders than they are to birds.
The statement which is true about Trout is as follows:
They are more closely related to salamanders than they are to birds.Thus, the correct option is A.
What is Cladogram?A Cladogram may be defined as a type of family tree or classification tree which is based on evolutionary relationships. It is also known as a phylogenetic tree.
Trout and the salamander are positioned closer to one another on the cladogram while the bird is being far away. The presence of lungs is marked from the salamander, so trout do not have lungs.
Trouts evolved from Hagfish but not from salamanders and lizards. Trouts only have jaws but lungs, claws or nails, feathers, and mammary glands.
Therefore, the correct option for this question is A.
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4. What is the best type of graph to show the proportion of dogs that are poodles, labs,
golden retrievers, and beagles.
A. Pie graph
B. Bar graph
C. Line graph
D. Histogram
Answer:
I think a bar graph or a pie graph
Which characteristics distinguish a law from a
theory? Check all that apply
The valves in the heart open and close to move blood in between heart chambers. O a) three directions O b) two directions O c) four directions d) one direction
Hi,
The valves in the heart open and close to move blood in between heart chambers.
Answer:
d) one direction
Which of the following statements about dinoflagellates is true? Select one: A. All known varieties are autotrophic. B. Their walls are usually composed of silica plates. C. Many types lack mitochondria. D. Some produce toxic agents in the water E. Their dead cells accumulate on the seafloor, and are mined to serve as a filtering material.
Answer: The correct option is D(Some produce toxic agents in the water).
Explanation:
Dinoflagellates are found in the phylum Dinoflagellata which are single celled organisms. They are mostly found in the ocean while few of them can live in streams, freshwater ponds and rivers. The following characteristics can be used to identify a Dinoflagellates, these include:
--> they are golden brown
--> they possess assimilative cell with indented waist.
--> they possess large nucleus with visible chromosomes.
It has been reported that many dinoflagellate species can produce various natural toxins. These toxins can be extremely toxic and many of them are effective at far lower dosages than conventional chemical agents. Therefore the option, Some produce toxic agents in the water, is a correct statement.
how are traits which are not beneficial to a living organism removed from its gene pool
Answer:
recessive traits is the answer
Marianela takes a huge drink of her coffee, assuming that it is at a tolerable temperature, and the heat sears her mouth. Although the pain is so great that her reflex is to spit out the coffee, she does not do so. The reflex to spit out the coffee is inhibited at the
Answer:
This question lacks options, options are:
A) glial cell
B) interneuron
C) sensory neuron
D) motor neuron.
The correct answer is D.
Explanation:
The brain sends instructions to the muscles that control voluntary movement through nerve cells called motor neurons. The function of the motor neuron is basically to carry the information that comes from the descending pathways of the spinal cord, in order to generate an activation in the tissues of the skeletal and visceral muscles of all parts of the body. Motor neurons need the information sent to them by sensory or efferent neurons. Since in order to perform the appropriate muscle movements for the situation, our brain must receive information from the outside. By sending sensory stimulation through interoreceptors, motor neurons can regulate visceral activity, stimulating or inhibiting the activity of their effector tissues. In this way, our nervous system integrates the information from both types of neurons and allows us to move and react according to the demands and circumstances of our external context.
Which statement is not true about the field of science?
it is based on observations and explanations of the natural world.
You are right with your answer please
Actual Question:
Which statement about the purpose of the field of science is false? (1 point)
Science is used to investigate the natural world.
Events of the natural world can be explained by science.
Science works to establish a collection of unchanging truths.
Useful predictions come from derived explanations of science.
Answer:
Science works to establish a collection of unchanging truths.
Explanation:
I took the test
why is growth important to living things?
Answer:
However, growth in living things is because of different internal processes occurring inside the body of the living organisms mainly because of the formation of new cells. The increase in number and mass of individuals are two unique characteristics of growth. Multicellular organisms exhibit growth by cell division.
What are micronutrients and why do we need them?
Explanation:
Micronutrients are one of the major groups of nutrients your body needs. They include vitamins and minerals. Vitamins are necessary for energy production, immune function, blood clotting and other functions. Meanwhile, minerals play an important role in growth, bone health, fluid balance and several other processes.
if my answer helps you than mark me as brainliest.. thanku
What role does mutation play in the evolution of a species and the development of new characteristics?
Answer:
Mutation plays a vital part in evolution; it is the greatest source of genetic variation. In evolution, it creates a new DNA sequence for a particular gene, creating a new allele. Additionally, recombination can produce a DNA sequence (a new allele) for a specific gene through intragenic recombination.
Explanation:
Hope this helps!
Please help me ????!!!!
Answer:
1. Form Bonds 2. True
Explanation:
What is the correct chronological order of the steps leading to protein synthesis?
rRNA, mRNA, DNA, protein
mRNA, DNA, rRNA , protein
DNA, mRNA, rRNA, protein
rRNA, DNA, mRNA, protein
Answer:
the third option is the right one.
Explanation:
m RNA gets its information from DNA and then sends it to rRNA which will later turn the message into a protein.
QI the father
13. A father and mother claim they have been given the wrong baby at the hospital. Both parents are
blood type A. The baby they have been given is blood type o. Does the genetic evidence support
their claim?
No, the claim is not based on scientific evidence because to heterozygous parents with genotype AO may have offspring with O phenotype and therefore OO genotype (proportion 1/4 of descendence).
What is the ABO blood type?The ABO blood type is a group of phenotypes controlled by a single locus, which is based on the alleles that encode surface antigens in red blood cells. The O phenotype is due to the recessive allele, while the A allele is dominant and therefore masks the O allele in heterozygous individuals.
Therefore, we can conclude that parents having the AO genotype may produce offspring with OO genotype
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What allows humans to have different traits from each other?
A. They store DNA in different places.
B. They have different genes.
C. They have different haploidnumbers.
gling
D. They have different number
Ichromosomes.
SUBMIT
Answer:
B. They have different genes.
Explanation:
What would most likely happen if the number of shrimp decreased?
A. The plankton population would increase.
B. The salmon population would increase.
C. The salmon population would not change.
D. The plankton population would not change.
Answer:
A.
Explanation:
Shrimp eat plankton, so, if the number of shrimp decrease, the plankton will increase. hope I helped, and God bless you!
which climate does sparrow live hot or cold
Answer:
Hot ok please give me brilliance
Explanation:
please
What produces two fertility hormones, Follicle stimulating hormone and luteinizing hormone?
A) Testes
B) Pituitary
C) pancreas
D) Ovaries
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Question:What produces two fertility hormones, Follicle stimulating hormone and luteinizing hormone?A) TestesB) PituitaryC) pancreasD) OvariesAnswer:[tex]\huge\quad\quad \underline{ \boxed{ \red{\sf{b.)\:Pituitary}}}}[/tex]
Explanation:Did you know that Pituitary produces two fertility hormones, Follicle stimulating hormone and luteinizing hormone.[tex]\underline \bold{ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: }[/tex]
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✍︎ C.Rose
The second generation of purebred cross of -hom-ozygo us recessive organism, with a —hom-ozygous dominant organism, contain a ratio of approximately _______ expressed dominant traits to recessive traits.
A. 2:1
B. 1:1
C. 1:3
D. 3:1
Answer:
D. 3:1
Explanation:
Gregor Mendel, in one of his numerous studies, performed a cross between purebred dominant (TT) pea plants and purebred recessive (tt) pea plants. All the offsprings of this cross appeared heterozygous tall (Tt) in the F1 generation.
However, when he self-crossed the F1 generation i.e. Tt × Tt, Mendel obtained a phenotypic ratio of 3 tall plants (dominant traits) : 1 short plant (recessive). This showed that the masked gene (recessive) was still present.
Is the podocyte process of the glomerular capillary wall the same as the endothelial layer?
Answer:
The podocytes have long foot processes called pedicels, for which the cells are named (podo- + -cyte). The pedicels wrap around the capillaries and leave slits between them. Blood is filtered through these slits, each known as a filtration slit or slit diaphragm or slit pore.
7. Which substances are produced by the hydrolysis of an
oil?
(1) water and nucleic acids
(2) amino acids and dipeptides
(3) fatty acids and glycerol
(4) glucose and water
Answer:
3) Fatty acids and Glycerol
