18.12 Water has a much higher specific heat than most other covalent compounds. What do you predict might happen if water had a low specific heat instead? … Plants would not have enough water to effectively carry out photosynthesis.
Which of the following best compares the structures found in plant and animal cells?
Which of the following best compares the structures found in plant cells and animal cells? Animal cells contain cell walls and a large central vacuole while plant cells contain cell membranes and many small vacuoles.
Which variables should be held constant during this investigation?
The Controlled Variable These variables must, therefore, be kept constant during the course of the experiment. They are known as the controlled variables.
In which of the domains would it be easiest to determine the phylogenetic relationships among organisms?
In which of the domains would it be easiest to determine the phylogenetic relationships among organisms? The Eukaryotes are easiest because they tend not to share genetic material with each other except when they are reproducing sexually.Which statement best explains the change in the male steelhead trout population?
Which statement best explains the change in the male steelhead trout population? Longer males are able to outcompete shorter males for access to females.
Which of the following is the most accurate statement comparing cell membranes and cell walls?
Which of the following is the most accurate statement comparing cell membranes and cell walls? Cell walls prevent everything from entering the cell, while cell membranes allow some things to enter. Cell membranes function mostly as selectively permeable gatekeepers while cell walls function mainly as support systems.
What process do you predict would be most beneficial to species?
Which process do you predict would be most beneficial to a species during a drastic change in environmental conditions? Meiosis; it results in more genetic variation, which would help ensure the species will survive.
How do scientists decide how do you organize organisms in a phylogenetic tree?
A phylogenetic tree may be built using morphological (body shape), biochemical, behavioral, or molecular features of species or other groups. In building a tree, we organize species into nested groups based on shared derived traits (traits different from those of the group’s ancestor).What will likely happen to a species that lacks the variation necessary to adapt to a changing environment?
A species that lacks the variation necessary ot adapt to a changing environment is more likely to… become extinct over time. 6. Which of the following is NOT a factor that causes changes in the frequency of homozygous individuals in a populations?
Which of the following would be most helpful in protecting the environment and achieving sustainability?Sometimes, our lifestyles can harm the environment rather than protect it. Which of the following would be most helpful in protecting the environment and achieving sustainability? Using solar power to generate electricity.
Article first time published onWhich of the following best describes the role of water in photosynthesis?
Which of the following best describes the role of water in photosynthesis? Water molecules donate electrons to the electron transport chain.
Which of the following best explains the difference in water potential between certain solutions and the grapes?
Based on Table 1, which of the following best explains the difference in water potential between certain solutions and the grapes? … Grape soda and NaCl have a lower water potential because these two solutions caused the grape to lose water.
Which of the following best explains how the properties of water contribute to this physiological process?
Which of the following best explains how the properties of water contribute to this physiological process? The high heat of vaporization of water allows the body to remove excess heat through a phase change of water from liquid to gas.
Which best describes the important event that occurs in meiosis that contributes to genetic diversity?
During Meiosis, synapsing occurs which allows chromosomes to shuffle various alleles (crossing over); chromosomes assort themselves independently of each other, which allows for more different possible combination of chromosomes.
Which of the following statements best describes how molecules released by the fish?
Which of the following statements best describes how molecules released by the fish become nutrients for the plants? The ammonia molecules released by the fish are converted by the bacteria to nitrates, which are used by the plants to make proteins and nucleic acids.
Which statement explains how consumers depend upon producers for their survival?
Which statement explains how producers are dependent upon consumers for their survival? Consumers produce carbon dioxide for producers to use during photosynthesis.
Can natural selection be predicted?
It is possible to experimentally test evolution by natural selection, since natural selection produces very fast results, and they are highly predictable, but it does not allow to make deterministic predictions.
Why is it unlikely that microspheres will ever be found on a meteorite?
Why is it unlikely that microspheres will ever be found on a meteorite even though lipids can form in them? A. Amino acids cannot form the enzymes needed to construct microspheres in a meteorite.
Which of the following best describes how amino acids affect the tertiary?
They occur as monomers, chains of monomers, and branched structures. … Which of the following best describes how amino acids affect the tertiary structure of a protein? The interactions of the different R -groups with other R -groups and with their environment determine the tertiary structure of the protein.
How would you compare and contrast a cell wall and a cell membrane?
The cell wall is found in plant cells whereas cell membrane is found in animal cells. … Cell wall is completely permeable whereas cell membrane is semi-permeable. 4. Cell wall is made up of cellulose and cell membrane is made up of lipids and proteins.
What is the most likely explanation for Wes's observations?
What is the most likely explanation for Wes’s observations? The red blood cells were placed into an isotonic solution. Water moved into and out of the cells to maintain homeostasis.
Which component is the most important in determining the fluidity of the cell membrane?
The structure of the fatty acid tails of the phospholipids is important in determining the properties of the membrane, and in particular, how fluid it is. Saturated fatty acids have no double bonds (are saturated with hydrogens), so they are relatively straight.
What happens when a species adapts to changes in the environment?
Change in an organism’s environment forces the organism to adapt to fit the new environment, eventually causing it to evolve into a new species. … They eventually become different species. Moreover, if there is a change in the environment of one group it does not necessarily occur in the environment of the other.
What can ultimately occur if species do not change?
Extinction occurs when there are no remaining individuals of a species alive. … The animals that have not adapted to their environment may become extinct. Extinction has a role in evolution as some species disappear. Others survive and continue to evolve.
What happens to a species when environmental change quizlet?
environmental change does NOT cause evolution to occur. a temperature or climate change does not itself force a species to change its inherited characteristics. if this were the case, then all species would be able to adapt to the new environment, and extinction would be a very rare event.
How can a phylogenetic tree be used to make predictions?
A phylogenetic tree is a chart that shows the ancestry of any living being. … Knowing this, and keeping in mind that both ancestry and enviromental factors play a key role in a species’ evolution , one can predict evolutionary trends based on each organism’s enviromental needs and genetic capability.
What information would a scientist use to determine an organisms phylogeny?
To build phylogenetic trees, scientists must collect character information that allows them to make evolutionary connections between organisms. Using morphologic and molecular data, scientists work to identify homologous characteristics and genes.
How does a phylogenetic system Organise living organisms?
Most modern systems of classification are based on evolutionary relationships among organisms – that is, on the organisms’ phylogeny. Classification systems based on phylogeny organize species or other groups in ways that reflect our understanding of how they evolved from their common ancestors.
What long term effect do you predict the snakes would have on the population dynamics of the ecosystem?
If a snake species were introduced to an ecosystem where it had no natural predators, what long-term effect do you predict the snakes would have on the population dynamics of the ecosystem? They would compete with native snake species for resources, causing a decline in native snake populations and possibly extinction.
How can a person minimize the effects of human activities on natural resources?
Completely turn off equipment like televisions and stereos when you’re not using them. Choose energy-efficient appliances and light bulbs. Save water: some simple steps can go a long way in saving water like, like turning off the tap when you are brushing your teeth or shaving.
Which ecosystem would most likely recover the fastest from a natural disruption?
Based on the information, which ecosystem would most likely recover the fastest from a natural disruption? Ecosystems with more genetic diversity and larger number of different species are more likely to recover from natural disruptions.
