Final answer:
Natural selection is exemplified by the case of the peppered moth during the Industrial Revolution, where better camouflage due to dark coloration led to increased survival and reproduction of dark-colored moths as the environment changed.
Explanation:
Natural selection is a process where organisms that are better adapted to their environment tend to survive and produce more offspring. An example of natural selection is the case of the peppered moth (Biston betularia) during the Industrial Revolution. Prior to industrialization, these moths were predominantly light-colored, which camouflaged them against the light-colored trees and lichens they rested upon.
However, as the Industrial Revolution progressed, soot and pollution darkened the trees, making the once-camouflaged light moths more visible to predators. Conversely, moths that were darker-colored due to a genetic mutation became better camouflaged. Over time, the dark-colored moths became more common because they were less likely to be eaten by birds, demonstrating evolution in response to environmental changes.
This scenario is indicative of how evolutionary processes can lead to a change in a population's gene pool, influencing allele frequencies and contributing to the diversity of life forms adapting over generations.
After fertilization, the ovule develops into a seed. can you match the parts of the ovule with the corresponding parts of the seed? drag the terms on the left to the appropriate blanks on the right to complete the sentences. resethelp
In the Winter, temperatures are cold, whether it's a windy day or not. The daily weather condition expressed here is the _____.
a. Temperature
b.Winter
c. Wind
(30 POINTS)
temature is the answer
Gregor Mendel determined that some tall pea plants carried the dominant gene TT, while dwarf pea plants carried the recessive gene tt.
Part A: Draw a Punnett square showing the possible genotypes for the first generation of offspring.
Part B: What percent of plants in the first generation will be dwarf pea plants?
What factors have affected (and will continue to affect) the growth of health psychology?
Inherited character traits and genetic abnormalities are examples of biological factors. Style of living, personality traits, and stress levels are all examples of psychological factors.
What is health psychology?The study of psychological and behavioral processes in health, illness, and healthcare is known as health psychology.
The discipline seeks to comprehend how psychological, behavioral, and cultural factors influence physical health and illness.
Being in a good mental state can help you stay healthy and prevent serious health problems.
According to one study, positive psychological well-being can lower the risk of heart attacks and strokes. Poor mental health, on the other hand, can lead to poor physical health or harmful behaviors.
The study of how biological, social, and psychological factors influence health and illness is known as health psychology.
Psychological science is used by health psychologists to promote health, prevent illness, and improve health care systems.
Thus, these are the factors that affect the growth of health psychology.
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Brass gets discoloured in air because of the presence of which of the following gases in air?
A. Oxygen
B. Hydrogen sulphide
C. Carbon dioxide
D. Nitrogen
Consider the cladogram. mc014-1.jpg Which group of organisms has the derived characteristics of true tissues, bilateral symmetry, and a pseudocoelom
sponges
roundworms
annelids
chordates
The right answer is roundworms
In the scientific sense, worm refers to the primitive form of organization of the Bilaterians. The three groups of animals (roundworms, flatworms and ringed worms) have a fundamental bilateral symmetry. Their appearance, probably at the very beginning of the Cambrian (primary era), marks an important stage in the evolution of living beings. In spite of their apparent simplicity, they inaugurate a new type of anatomical organization which will then be taken over by all other animal species. The different tissues or specialized organs, come from one of the three embryonic leaves (endoderm, mesoderm and ectoderm) inaugurated by these verses.
Birds, insects, and many reptiles excrete nitrogenous waste in the form of uric acid, which _____. is not very toxic compared to other nitrogenous wastes, but requires the loss of a lot of water with its excretion reduces water loss compared to other nitrogenous wastes, but is highly toxic is much more soluble in water than other nitrogenous wastes, but is energetically costlier than other nitrogenous wastes to synthesi reduces water loss compared to other nitrogenous wastes, but requires more metabolic energy to produce reduces energy use compared to other nitrogenous wastes, but is highly toxic to animals that produce it
Describe the function of the structure pictured below.
a. Spore production
b. Food absorption
c. Water uptake
d. Enzyme release
Spores are the reproducing body of an organism. Option A is correct. The function of the structure in the given picture is spore production.
Spores:
Spores are the reproducing body. They are found in the lower organisms such as Fungi, algae, and lower plants.
Spores can be Haploid or Diploid depending upon the life cycle.
In the picture, The lower blob-like structure is a stalk that produces spores and a small ball-like structure is spores.
Food is absorbed inside the stomach. Enzymes are released from the cells.Therefore, the function of the structure in the given picture is spore production.
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what is the difference between a sceintific theory and a scientific law
Answer:
A scientific theory is a set of concepts, a scientific law is a constant and unchanging rule and norm.
Explanation:
A scientific theory is a set of concepts, including abstractions of observable phenomena and quantifiable properties, together with rules (scientific laws) that express the relationships between observations of such concepts. An example of this is the theory of relativity.
A scientific law is a scientific proposition that affirms a constant relationship between two or more variables or factors, each of which represents a property or measurement of specific systems. An example of this is Newton's Laws.
Feedback from others can reduce the size of the unknown pane and increase the size of the ____ pane. blind hidden unknown open
Protective antibodies are produced in the primary response to a microbe then in smaller amounts during secondary responses.
a. True
b. False
What is the expected growth mile markers for a 6-month infant?
any rock formed from molten material from inside the earth is 1-igneous, 2-metamorphic 3- sedimentary 4- weathered
An example of mitosis at work is a leaf
a turning yellow.
b growing.
c taking in carbon dioxide.
d hosting a caterpillar.
PLEASE HELP IN A TEST
Energy in most ecosystems must flow through autotrophs because ______.
Energy in most ecosystems must flow through autotrophs because only autotrophs can convert solar energy in chemical energy.
Explanation:
This suggests that these are organisms which are entirely based on the Greek name self-producers that can produce complex organic materials by fixing together simple building blocks in their local situation. E.g plants on land. Photosynthesis in plants transforms solar energy into chemical energy using electrons and protons from water. The method of photosynthesis in plants involves a series of steps and reactions that use solar energy, water, and carbon dioxide to produce organic aggregates and oxygen.
An organism with two identical genes for a trait is said to be ______ for that trait. select one:
a. diplontic
b. heterozygous
c. homologous
d. homozygous
Can the genotype for a gray-bodied fly be determined? why or why not? describe all of the possible genotypes for a fly with that phenotype. *
Which federal legislation sets standards for maximum noise levels
Answer: The correct answer is-
Noise Control Act .
Noise Control Act is also termed as Noise pollution and abatement Act, which was established in the year 1972 by federal legislation of United States.
This act initiated a federal program for the regulation of noise pollution with the intention of protecting health of human beings by minimizing the annoying noise in the general public. It sets standards for the maximum noise levels so that noise pollution can be controlled.
Thus, Noise Control Act is the right answer.
The _____ sends out an electrical impulse that regulates the heartbeat.
Answer: The SA node
Answer choices are:
A. The AV node
B. The SA node
C. The purkinje fibers
D. The AV bundle
The SA node is the heart's natural pacemaker consisting of a cluster of cells located in the upper part of the wall of the right atrium. (the right upper chamber of the heart). The electrical impulses are produced and sent out from there to regulate heartbeat. This is also called the sinus code.
Why are all of the organs in the alimentary canal important in digesting food? As food passes through each organ, different hormones are produce to help break it down so that our body can easily absorb nutrients. Each organ has the same role in digesting food but is necessary in order to efficiently break food. The human body needs a long time to digest food in order to be able to absorb nutrients.
Answer:
the first one
Explanation:
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Widow's peak, a pointed hairline on the forehead, is a genetic trait caused by a dominant allele. it can be traced back through a family's history using pedigree analysis. the pedigree shown here is of three generations of a family. notice that some individuals (shown in gray) have a widow's peak (w = dominant allele and w = recessive allele). this pedigree supports the fact that widow's peak is due to a dominant allele, because if it were due to a recessive allele and both parents show the recessive phenotype, then ________.
earth's magnetic field affects what?
The human body can absorb some of the _____ that is synthesized by intestinal bacteria. vitamin k riboflavin thiamin vitamin a
The human body can absorb some of the thiamine that is synthesized by the intestinal bacteria.
Thiamine is also known as vitamin B1. It is a water soluble vitamin. Thiamine is naturally found in dairy food products like milk, eggs, meat, cheese, etc. The vitamin B1 or thiamine helps the body tissues in the break down of carbohydrates to make food that are needed by the cells in the body.
Members of the Protista kingdom contain multi-celled organisms such as kelp and single-celled organisms such as .
Answer:
The correct answer will be Paramecium.
Explanation:
Protista is a heterogeneous group of simple eukaryotic organisms which did not arise from a single ancestral protist.
The members of protist are polyphyletic, which means they are not closely related to each other and do not share many common characters. They vary greatly in organization from single-celled to synctial to multi-cellular organisms.
The most common single-celled protista is Paramecium.
Paramecium are unicellular protist found in freshwater habitats, shaped like a sole of a shoe with short hairy structures on its body called cillia. Cillia helps in locomotion and dragging the food to its oral cavity.
Thus, Paramecium is the correct answer.
Which factor differentiates between weather and climate
Answer:
the length of time over which conditions are measured
Explanation:
apex
How can karyotype analysis detect genetic disorders lab 12-2 answers?
Karyotype enable viewing of the physical attributes of chromosomes. When compared to the karyotype of a normal individual, any abnormalities in chromosomes can be identified by either noticing an abnormal number of chromosomes or pairing (aneuploidy), or regional changes within chromosomes such as shorter or longer than normal chromosomes due to translocations.
The nurse is assessing a patient who is malnourished and has a history of poor nutrition. the patient reports difficulty seeing at night. this patient is likely to be deficient in which fat-soluble vitamin?
Organs, such as the stomach and the small and large intestines, are lined with smooth muscle tissue. These organs, due to the muscular contractions of their walls, involuntarily A) grind food into smaller pieces. B) move food through the digestive tract. C) add liquids to food to make it a slurry. D) supply digestive enzymes that aid in digestion.
the answer is b move food through the digestive tract
Many of the proteins in the human body are enzymes that catalyze chemical reactions. What is the relationship between enzymes and activation energy?
Answer:
When an enzyme catalyzes a reaction, it does not affect the activation energy of the reaction.
Explanation:
A heterozygous individual has a _____ for a trait being studied.
a. haploid condition, in genetic terms
b. pair of identical alleles
c. pair of nonidentical alleles