Answer:
D) A shipment of tainted beef was recently imported from Europe.
Explanation:
Some plants in an area produce a toxin that protects them from being eaten by a variety of insect species. The toxin decreases reproductive rates in insects. Because of a genetic mutation, some fruit flies can detect the plant toxin and therefore avoid eating the plant.
A. Describe how the number of fruit flies in the population that can detect the toxin will most likely change over the next 25 years.
B. According to the mechanism of natural selection, explain how the change you described in Part A will occur.
C. Based on the changes in the fruit fly population, describe what will most likely happen to the plants’ production of the toxin. Explain your answer.
According to the mechanism of natural selection, explain how the change you described in Part A will occur. Thus, option "B" is correct.
What is "Adaptation of Insects"?"Adaptation of Insects"
The following that is an adaptation that would promote insect herbivory is the Insects evolve new taste receptors that trigger an avoidance reaction to the toxin.
Plants are regularly fed upon herbivorous creepy crawlies. to get security against such assaults plant has created a few instruments like generation of poisons and unstable substance that either slaughter the bother or pull in the normal adversaries of the creepy crawlies respectively.
Thus, the correct answer is B.
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A complex series of events involving increased blood flow, recruitment of immune cells and clotting chemicals to enhance the body's immune system is called a(n)
Answer:
An immune response is a complex series of events involving increased blood flow, recruitment of immune cells and clotting chemicals to enhance the body's immune system.
Explanation:
An immune response is the body's response mechanism to protect itself from invasion by pathogens such as parasites, bacteria, viruses and fungi.
The immune response is composed of two systems or branches: (i) the innate immune response and (ii) the adaptive immune response.
Innate immune response: the innate immune response is an inborn or natural response mechanism which provides the body with its first line of defense against infection. It is composed of two parts (i) the physical and chemical barriers such as the skin and mucous membranes, and (ii) no-specific innate response which involves cytokines, complement proteins as well as phagocytic cells such as neutrophils, basophils and mast cells.
Adaptive or acquired immune response: This is a specific immune response to previously encountered pathogens. It include cells such as dendritic cells, T cell, and B cells as well as antibodies.
B cells are responsible for immune response involving antibodies, whereas T cells are involved in immune responses by the immune cells.
Which of the following is a disadvantage of rain forest agroforestry compared to slash-and-burn farming methods?(1 point)
faster rates of deforestation
prevention of soil erosion
increased start-up costs
decreased shade for crops
Answer: increased start up costs
Explanation:
Increased start-up costs are a disadvantage of rain forest agroforestry compared to slash-and-burn farming methods.
What is agroforestry?Agroforestry refers to the human practice where trees and shrubs are combined to generate a sustainable system.
This combination is made to generate a sustainable crop and animal farming system.This type of combination exhibits ecological advantages, but it may be cost expensive.In conclusion, increased start-up costs are a disadvantage of rain forest agroforestry compared to slash-and-burn farming methods.
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The word heterotroph means:
PLZ HELP I WILL BRAINLIST IF RIGHT!!
Answer:
I think other nourishment?
Explanation:
What types of species interactions exists in an ecosystem?
Transcribe the sequence below:
ATGCCATGGCATTGA
Answer:
Not sure the sequence can mean anything
Explanation:
Here is the sequence spaced out ATG CCA TGG CAT TGA
here it is translated to the mRNA sequence UAC GGU ACC GUA ACU
than a protein sequence TYR GLY THR VAL THR
do plants spend the same amount of time in mitosis despite being mature or not?
Answer:
Plant and animal cells both undergo mitotic cell divisions. Their main difference is how they form the daughter cells during cytokinesis. … Plant cells don't have centrioles. Lastly, animal cells divide everywhere and all the time while plant cells divide in a specialized region called the meristems.
What happens during pubery
Answer:
It changes your life .
Explanation:
Puberty is when a child's body begins to develop and change as they become an adult. Girls develop breasts and start their periods. Boys develop a deeper voice and facial hair will start to appear. The average age for girls to begin puberty is 11, while for boys the average age is 12.
A mile long stretch of beach by the freezing Atlantic Ocean includes: penguins,
leopard seals, minnows, plankton, oxygen, carbon dioxide, salt and sand. This
description can best be identified by which term?
Biome
Community
Population
Ecosystem
Match the items below with the correct type of supernova.
Supernovas are tremendously luminous explosions that occur in a star when it is about to die releasing huge amount of energy, particles and radiation.
What is a supernova?A supernova is an extremely bright explosion of a star which occurs when a star has reached the end of its life and after the intensity gradually dims and the star dies.
Explosions that occur in supernovas release very huge amounts of radio waves, X-rays, gamma rays and also cosmic rays.
There are two main types of supernovae; the type I and the type II supernovas.
Therefore, supernovas are tremendously luminous explosions that occur in a star when it is about to die.
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Which two processes will be involved as this chick grows into a chicken?
A. Cell growth due to taking in nutrients
B. Cell division that involves meiosis
C. Cell division that involves mitosis
D. Cell growth due to fertilization
Answer:
Two processes that are involved as the chick grows into the chicken are -:
Cell growth due to taking in nutrients.Cell growth due to fertilization.Explanation:
Cell growth due to taking in nutrients -: Within the egg, Special temporary organs or embryonic membranes develop both to protect the embryo and to provide nutrition, breathing, and excretion for it. The yolk sac, amnion, and allantois contain these organs include the yolk sac, amnion, and allantois.The yolk sac provides the embryo with food. The amnium provides protection by enclosing the embryo. As a respiratory organ, the allantois collects minerals from the shell and treats waste. Until the moment of hatching, these temporary organs act inside the embryo.
Cell growth due to fertilization -: In the single cell produced by the union of two parental cells, the egg and sperm, the development of the chick starts in the process known as fertilization. Division of the cells stops as the egg is laid and cools. After the egg is laid, cooling the egg does not result in the embryo 's death after the egg is laid.Hence , the correct options are A and D.
Answer:
A and C are correct
in the skeptical system, which are the two main tissues responsible for structural support in the body?
compact bone
ligaments
red bone marrow
spongy bone
yellow bone marrow
Which artery do you think is made of thicker muscle, the aorta or the pulmonary artery? why? refer back to your heart box to visualize the path of these vessels.
why are all tidal patterns predictable??
Answer:
The rise and fall of the tides, which are driven by the gravitational attraction of the Sun and Moon on Earth's ocean are another cause of currents. ... The speed and direction of tidal currents are predictable. Tidal currents are the only type of current affected by the interactions of Earth, the Sun, and the Moon.
Explanation:
3. Sean the scientist is going to run an experiment but is unsure how to organize their data.
They want to see how their garden will grow with different fertilizers.
Answer:
Sean should set a control group of plants with no fertilizer and different experimental groups with the different fertilizers he wants to test. Every condition of these experimental groups should be the same as the control group with the exception of the fertilizer.
Define conjugate protein
Answer: A conjugated protein is a protein that functions in interaction with other chemical groups attached by covalent bonding or weak interactions.
Explanation:
Answer:
conjugate protein stands from protein molecule which combine with non-protein components known as prosthetic group.For an example,metalloprotein where the protein combined with metal and lipoproteins where the protein combines with lipid
Can you tell from this tree whether a C at position 15 evolved before or after a T at position 15? Explain your answer
The evolutionary tree is not observed here but it is possible to answer this question by observing which nucleotide is found in the root of the node. It indicates the first substitution.
What is an evolutionary tree?A phylogenetic evolutionary tree is a diagram used to show the evolution of a given taxonomic group (for example, a group of species).
It is possible to trace the evolution of a given taxon by tracing the nucleotide substitution observed from a common ancestor.
In an evolutionary tree, the root of the node is represented by the common ancestor and therefore the presence of a particular nucleotide (either T or C) in that position can be considered as the ancestral character.
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What is the source of all energy? What organisms transfer this energy into a usable form for all other organisms? Explain the percent of energy that is transferred to the different trophic levels. If all the energy is not being transferred where is it going? Be sure to use terms like metabolism, decomposers, producers, primary consumers, secondary consumers, and tertiary consumers.
Answer:
1- the sun
2-Plants performing photosynthesis convert carbon dioxide to organic carbon compounds using sunlight as a source of energy; these compounds go on to fuel nearly all other organisms in the ecosystem, from bacteria to animals.
3-The amount of energy at each trophic level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat.
Explanation:
1-Energy is all around us and comes from many sources. One of the most important sources of energy is the sun. The energy of the sun is the original source of most of the energy found on earth. We get solar heat energy from the sun, and sunlight can also be used to produce electricity from solar (photovoltaic) cells.
Hope this helps!
How lysosomes would be involved in changing a caterpillar into a butterfly.
Answer:
well the caterpillar first digest it's self turning the soup into eyes, wings, antenna and other adult structures i'm sorry if i get it wrong for you
Explanation:
what molecules link together to form proteins
Answer:
Peptide bonds
Within a protein, multiple amino acids are linked together by peptide bonds, thereby forming a long chain. Peptide bonds are formed by a biochemical reaction that extracts a water molecule as it joins the amino group of one amino acid to the carboxyl group of a neighboring amino acid.
Why do you think agritourism is so important? Give two reasons.
Answer:
1: it provides us with crops 2: gives more job opportunities
if humans were wiped out and allowed room for a new dominant species, out of all animals listed which one would have the most potential to do so?
Answer:
the raven
Explanation:
octopus - intelligent but very antisocial with a short life span, meaning they most likely will not work with other octopuses to improve while also living in the ocean making it harder to build. (but could probably evolve to walk on land)
dolphin - smart but does not have thumbs to make tools and lives in the ocean meaning they have a disadvantage.
raven - intelligent, works with other ravens and sometimes even wolves, and has shown to make tools.
Answer:
The raven because it's ability to craft tools, social life involving hunting groups, intelligence, and wide variety of sounds (allowing potential language) give it the potential to evolve very well.
Explanation:
Compound microscopes focus light through ______ to produce a magnified image.
Answer:
lenses
Explanation:
Answer:
lenses
Explanation:
i just did that question lol
What happens in the light reaction of photosynthesis?
What happens in the dark reaction of photosynthesis?
What five factors affect photosynthesis and its rate? How?
Answer:
1). Photosynthesis begins with light reactions. It is during these reactions that the energy from sunlight is absorbed by the pigment chlorophyll in the thylakoid membranes of the chloroplast.
2). The dark reactions of photosynthesis occur in the stroma of the chloroplast where they utilize the products of the light reaction. In the dark reaction, plants use carbon dioxide with ATP and NADPH from the light reactions to produce glucose.
3). The main factors affecting the rate of photosynthesis are light intensity, carbon dioxide concentration, and temperature.
Explanation:
Hope this helps
The most efficient control of eukaryotic gene expression is achieved at the level of.
Answer:
Maybe epigenetic level
Where does the electron flow that we measure with dcpip originate.
The electron flow that we measure with the entire process originated from Photosystem II.
What are electrons?Electrons may be defined as the type of subatomic particles that are always revolving around the nucleus of each atom. These types of subatomic particles are negatively charged in nature. Electrons are discovered by J.J. Thomson.
Photosystem II (PSII) is a multi-component pigment-protein complex that is responsible for water splitting, oxygen evolution, and plastoquinone reduction. This is the initial protein complex in the light-dependent reactions of oxygenic photosynthesis.
It is frequently located in the thylakoid membrane of plants. It is the place through which the reaction of photosynthesis begins with the flow of electrons and involves the water-oxidizing complex.
Therefore, the electron flow that we measure with the entire process originated from Photosystem II.
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In an experiment that tests how
different fertilizers effect the growth of
plants, what would the INDEPENDENT
variable be?
A. the growth of the plants
B. the fertilizers
C. multiple groups with the same plant and fertilizer
D. a plant without fertilizers
Answer:
D.
Explanation:
The independent variable is the variable that goes unchanged by the others
Which of the following activities would NOT represent an anatomical study? *
~making a section through the heart to observe its interior
~drawing blood from recently fed laboratory animals at timed intervals to determine their blood sugar levels
~examining the surface of a bone
~viewing muscle tissue through a microscope
The activity that does not represent an anatomical study is 'drawing blood from recently fed laboratory animals at timed intervals to determine their blood sugar levels'.
Anatomy is a field of biology that studies the structure of organisms and their components. The study of human anatomy is fundamental in the field of Medicine.
Anatomy is split into two categories:
Macroscopic anatomy: the study of an animal's bodily components with unassisted vision is known as macroscopic anatomy, or gross anatomy. The branch of superficial anatomy is included in gross anatomy.Microscopic anatomy: entails the use of optical equipment to investigate the tissues of different structures, a process known as histology, as well as the study of cells.The activities mentioned in the question all represent anatomical study but the second one, because analyzing blood sugar levels has no relation to anatomical structures but the chemical composition of the blood.
On the other hand, making a section through the heart to observe its interior, or examining the surface of a bone are great examples of macroscopic anatomy, while viewing muscle tissue through a microscope represents microscopic anatomy.
In the attached image, it shows how macroscopic and microscopic anatomy complement one another.
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Which statement is true about bacterial cells? *
O The Wells are very large
The cells have no nucleus
O They are eukaryotes
O They have organelles
Answer:
They have no nucleus.
Sickle-cell anemia is caused by a mutation of one nucleotide in a gene. The type of mutation that causes sickle-cell anemia is known as.
Answer:
I have 2 answers. Not sure which one you were looking for.
Explanation:
1.Mutations in the HBB gene cause sickle cell disease. The HBB gene provides instructions for making one part of hemoglobin. Hemoglobin consists of four protein subunits, typically, two subunits called alpha-globin and two subunits called beta-globin. The HBB gene provides instructions for making beta-globin.
or
Sickle-cell anemia is the result of a change in a single nucleotide, and it represents just one class of mutations called point mutations.