In which phase does crossing over occur (where the homologous pairs exchange genetic information)?
Prophase I
Prophase II
Prophase III
Answer:
Prophase l is correct If ya have Usa Test prep
Which physical factors MOST influence a prairie ecosystem?
A)grasses, animals, and fires
B) bison, prairie dogs, and foxes
C) forbs, non-woody plants, and flowering plants
D) precipitation, temperature, and existing landforms
Why do you think latin is used instead of a more modern language?
Why isostatic rebound slows down over time
Answer:
Isostatic rebound is actually a very slow adjustment process among the terrestrial elastic layers of planets like earth, which gets slower once it reaches certain equilibrium.
It's defined as a rebound due to the response after a very heavy force/load is either removed or further inflicted on the lithosphere, depresing it or displacing it, and making it rise up again somewhere else.
The pression or load/force is caused by huge ice sheets, such as when ice ages in the past, which can either melt at some point in time, or reach equilibrium, with the asthenosphere (layer below lithosphere) gathering enough strengh to carry that weight.
In both scenarios, the earth's response is slow and it may vary either due to it's axial tilt and orbit related to the Sun causing warmer periods, or to the changes in weight upon the lithosphere, just like Skandinavia which is still rising back up from the last ice age.
Explanation:
Tina is conducting an investigation on bicycle helmet aerodynamics. She is trying to find out what kind of helmet causes the least amount of air resistance. She tested three different helmets, using the same rider each time. She recorded the time it took for the rider to complete one circuit on a track in the table below.
Helmet Time in Seconds
A 35
B 28
C 41
How could Tina get more reliable data for this experiment?
What life cellular process produces the waste products carbon dioxide and water
plzzzz need help
Which of these is not an environmental effect of farming?
increased air temperatures
habitat loss
soil erosion
poisoned wildlife from pesticides
what is the function of an inhibitor in an enzyme substrate reaction?
a. activate the substrate
b. deactivating the product
c. activating an enzyme
d. deactivating an enzyme
Answer:
c deactivating an enzyme
An inhibitor deactivates an enzyme in an enzyme-substrate reaction by binding to the active site or an allosteric site, preventing the substrate from binding and reducing the enzyme's activity. So the correct option is d.
Explanation:The function of an inhibitor in an enzyme-substrate reaction is to interfere with the enzyme's activity. This can be achieved by different types of inhibitors through various mechanisms. An inhibitor may bind competitively to the active site of an enzyme, preventing the substrate from binding, in what is known as competitive inhibition. Alternatively, an inhibitor can bind noncompetitively to an allosteric site on the enzyme leading to a change in the enzyme's conformation and thus reducing its affinity for the substrate; this type of inhibition is called allosteric inhibition. The correct answer to the question would be (d) deactivating an enzyme, as inhibitors generally work by reducing or stopping the catalytic activity of enzymes.
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Sponges reproduce asexually through a process called ______.
All of the different organisms interacting in a pond make up?
Answer:
An ecosystem
Explanation:
Ecosystem refers to the interaction of the biotic components of a community with one another and also with abiotic components i.e. physical environment. The biotic components describes organisms that possess life in them e.g animals, plants, and microbes. The abiotic components describes the lifeless physical environment e.g climate, temperature, sun, soil etc.
According to the question, organisms in a pond interacting makes up an ECOSYSTEM. The organisms could include fishes, plants, bacteria, planktons etc. Specifically, because this ecosystem occurs in water, it is referred to as an AQUATIC ecosystem.
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What type of infection is transmitted by athlete's foot?
Bacterial
Fungal
Parasitic
Viral
fungal because it is a foot fungus.
Detached earlobes are dominant. A child inherits genes with the genotype: E and E. What is the chance that they will have detached earlobes?
100% chance
75% chance
50% chance
25% chance
PUNNETT SQUARES: QUESTION 5 Tay-Sachs disease is caused by a recessive lethal allele, meaning that individuals that are homozygous recessive (tt) will have the disease and die before they are able to have offspring. Two parents that are heterozygous (T) carriers for Tay-Sachs want to have children. What are the chances that their children will get Tay-Sachs disease?
Which characteristic CANNOT be inherited?
A.) Language
B.) Eye Color
C.) Hair Color
D.) Dimples
Please help
The thick mass of grass roots that helps hold prairie soil in place is called
Answer:
It is John Deere's Plow
Explanation:
YW
The term biology comes from the Greek word bios, meaning _____, and the noun ending -logia, meaning ?
Answer:
Life and study.
Explanation:
Biology may be defined as the field of study that study about the living organism. Different fields of biology are genetics, anatomy, physiology, molecular biology and cell biology.
Biology has been derived from the Greek word bios that means life and Logy means study. The study of the living organism is known as biology. The physical, chemical and biological structure of living organism is study in field of biology.
Thus, the answer is life and study.
Some steps in cell division are shown below: 1. Chromosomes condense and pair up 2. Segments of DNA of sister chromatids twist and cross 3. Exchange of DNA occurs between chromosomes 4. Haploid chromosomes condense Which of the following steps is least likely to occur during meiosis 1?
Sorry I'm late :P But if you still were interested in the answer, it's Step 4. Got it right on the test.
Steps in the cell division that occurs during meiosis 1 are :
Chromosome condense and pair upSegments of DNA sister chromatids twist and crossExchange of DNA occurs between homologue chromosomeThe process that is least likely to occur during meiosis 1 is :
Haploid chromosome condensation - because this occurs during meiosis 2.Meiosis It is a process during which exchange of genetic material between the homologue chromosome and such division yield four haploid cells.The diagrammatic representation of meiosis is shown below :To know more about meiosis :
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Environmental factors can cause various changes in ecosystems. Which of the following would most likely have the greatest lasting effect on an ecosystem? a. a seasonal excess of fertilizer runoff b. a disease among a population c. change to the landscape from construction d. seasonal drought
Answer:
So it would be C.
Explanation:
Change to the landscape from construction. The answer is c because if there is construction, they are probably building something on top of what used to be that ecosystem. i hope this helps
Each genus of organisms is divided into classes. Please select the best answer from the choices provided True or False
Answer:
true
Explanation:
Earthworms are a species of worms that lives in moist soil along with other organisms like tiny insects and bacteria. Earthworms obtain water and nutrients by eating dead plant material found in the soil. Earthworms also release waste materials that help enrich the soil. Based on this information, which sentence is correct?
Answer:
D. Soil is the earthworm’s habitat.
Explanation:
brainliest plz!!!!
Boris is riding his bike on a path of hard sand. When he rides on a paved path, he can pedal his bike more easily. He can ride more easily on pavement because there is less
A)
drag.
B)
lift.
C)
friction.
D)
gravity.
The Calvin cycle of photosynthesis begins when
A. light becomes available.
B. electrons leave a photosystem.
C. the reduction of carbon dioxide occurs.
D. carbon dioxide is attached to RuBP.
How many ways can 2 sets of chromosomes combine?
The right answer is 8,324,608.
Chromosome recombination is most often just before cell division. This phenomenon is responsible for genetic diversity and the evolution of species.
To calculate the number of recombinations between two chromosomes, the formula 2 ^ n (n being the number of chromosomes) is used.
2 ^ 23 = 8,324,608 possibilities of recombination.
Study the analogies of the endoplasmic reticulum and golgi complex. Which analogy correctly represents each organelle's function? A) in the process of proteins, the ER acts as a highway system and the golgi complex acts as a post office. B) in the process of proteins, ER acts as a post office, and the golgi complex acts as a highway system. C) in the process of proteins, the ER acts as an instruction manual, and the golgi complex acts as a storage shed. D) in the process of protiens, ER acts as a storage shed and, golgi complex acts as an instruction manual.
Answer:
The ER acts as a highway system, and the Golgi complex acts as a post office.
Explanation:
In protein processing, the endoplasmic reticulum serves as a highway system, producing and moving proteins, and the Golgi complex functions as a post office, modifying, packaging, and directing proteins to their destinations.
Explanation:The correct analogy for the functions of endoplasmic reticulum (ER) and the Golgi complex during protein processing is A) in the process of proteins, the ER acts as a highway system and the Golgi complex acts as a post office. These analogies are fitting because the ER synthesizes and transports the proteins similarly to a highway system ferrying goods, and the Golgi complex modifies, packages, and sorts them for delivery, like a post office.
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(02.04 HC)List an example of how an ecosystem can be affected by weather patterns. Explain how ocean temperatures affect weather patterns.
Since all living organisms use the same four nucleotides in DNA structure, what is it that makes individuals unique?
A)the incidence of the STOP codon in DNA
B)the sequence of nucleotides in the DNA
C)the location of the phosphate group on the DNA backbone
D)the number of cytosine repeats in one strand
A person who is interested in learning more about the "fight or flight" response may pursue a career in
A - endocrinology
B - gene therapy
C - microbiology
D - sports medicine
The answer would be (A): Endocrinology.
Scientists have changed the DNA of a type of cabbage so that it contains a tiny amount of poison from a scorpion’s tail. The poison in the cabbage kills caterpillars that try to eat it. This is an example of
A) gene therapy.
B) selective breeding.
C) genetic engineering.
D) artificial selection.
this awnser is c)genetic engineerig
True or False: Kevin selected a lightweight pan in which to deep-fat fry the doughnuts. Aidan knows this is a safe procedure.
Explain why Earth's temperature is directly affected by the amount of greenhouse gases in the atmosphere.
Earth's temperature depends on the balance between energy entering and leaving the planet’s system. When incoming energy from the sun is absorbed by the Earth system, Earth warms. When the sun’s energy is reflected back into space, Earth avoids warming. When absorbed energy is released back into space, Earth cools. Many factors, both natural and human, can cause changes in Earth’s energy balance, including:
Variations in the sun's energy reaching EarthChanges in the reflectivity of Earth’s atmosphere and surfaceChanges in the greenhouse effect, which affects the amount of heat retained by Earth’s atmosphereThese factors have caused Earth’s climate to change many times.