Answer:
c
Explanation:
Please give brainlyest
a houseplant makes its food from sunlight water and carbon dioxide it is a producer, primary consumer, secondary consumer, or tertiary consumer?
Answer:
Producer
Explanation:
A single base-pair mutation occurs in a promoter sequence of a gene. As a result of the mutation, what are the possible effects on the transcription level of the gene?
Answer:
This mutation could increase, reduce, have no effect, or even eliminate the transcriptional activity
Explanation:
A single pair mutation (also known as point mutation) is caused when only one nucleotide in the DNA sequence is changed. A promoter is a DNA sequence that binds to the RNA polymerase and transcription factors in order to initiate the transcription. When a point mutation results in a promoter region, this may alter transcription, and its effects can be determined by measuring the level of gene transcription. In a promoter bashing assay, point mutations are generated in the promoter region in order to determine their effects on gene expression.
what happens when rain water hits sand
Answer:
it seapes through the water
Answer:
When rain falls to the ground, the water does not stop moving. Some of it flows along the land surface to streams or lakes, some is used by plants, some evaporates and returns to the atmosphere, and some seeps into the ground. Water seeps into the ground much like a glass of water poured onto a pile of sand.
Which of the following will lead to MORE flooding during a hurricane?
CHOOSE ALL THAT APPLY
low elevation
presence of levees
strong winds
heavy rains
Answer:
heavy rains and low elevation
Explanation:
I hope it work
Why do cells need to be able to control movement of substances across the plasma membrane?
Answer:
To move substances against a concentration or electrochemical gradient, the cell must use energy. Small substances constantly pass through plasma membranes. Active transport maintains concentrations of ions and other substances needed by living cells in the face of these passive movements.
Explanation:
g A charged tRNA travels across a ribosome from the _______ site, to the _______ site, and then to the _______ site. A; E; P P; A; E P; E; A A; P; E E; P; A
Answer:
A; P; E
Explanation:
A tRNA molecule is a type of RNA found in the ribosomes of a cell. They play a major role in the translation process by binding to the mRNA in respective sites of the ribosome and carrying their corresponding amino acid to the growing polypeptide chain.
Ribosomes, which is the site of translation has three sites namely: A site, P site, and E site. tRNAs perform their roles by moving through these sites in the order: A to P to E.
Site E is the release site
Choose the best soil for plant growth
A. Sandy soil
B. Clay
C. Gravel
D. Loamy soil
Answer : D
Answer:
the best soil for plant growth is loamy soil
core material is thought to be mostlyg Iron and steel, nickel and iron, steel and nickel, lead and zinc?
Answer:
It would be nickel and steel
Explanation:
Answer:
Nickel and steel
Explanation:
The large object in the picture above is a single bacteria cell. The many small structures attached to it are viruses called
bacteriophages which are attaching to the receptor sites on the bacteria cell. Which of the following is one important
difference between a virus and a bacteria cell?
Answer Options:
a. a virus is much larger in size than a bacterial cell
b. a virus always causes more severe disease than a bacterial cell
c. a virus can never reproduce on its own, but a bacterial cell can
d. a virus does not contain genetic material, but a bacterial cell does
Answer:
c. a virus can never reproduce on its own, but a bacterial cell can
Explanation:
a. a virus is much larger in size than a bacterial cell - this is false, a virus is much smaller than a bacterial cell
b. a virus always causes more severe disease than a bacterial cell - this is false, both can be deadly pathogens
c. a virus can never reproduce on its own, but a bacterial cell can - this is true. Viruses are not cellular and need a host cell to reproduce, but bacteria do not.
d. a virus does not contain genetic material, but a bacterial cell does - this is false, viruses contain either a DNA or RNA genome
which of these is a compound where electrons are transferred between two substances
A. iron
B. salt
C. gold
D. nickel
Answer:
letter B..salt
Explanation:
thats my answer
Controls and Variables – Read the description for each experiment and answer the questions. Krusty Krabs Breath Mints Mr. Krabs created a secret ingredient for a breath mint that he thinks will "cure" the bad breath people get from eating crabby patties at the Krusty Krab. He asked 100 customers with a history of bad breath to try his new breath mint. He had fifty customers (Group A) eat a breath mint after they finished eating a crabby patty. The other fifty (Group B) also received a breath mint after they finished the sandwich, however, it was just a regular breath mint and did not have the secret ingredient. Both groups were told that they were getting the breath mint that would cure their bad breath. Two hours after eating the crabby patties, thirty customers in Group A and ten customers in Group B reported having better breath than they normally had after eating crabby patties.
1. Which people are in the control group?
Answer:
The people in group B
Explanation:
The people in group B are those in the control group.
The control group during an experiment is a group of experimental subjects that either do not receive the treatment variable or are given placebo treatment. The control group is usually established to create a standard to which comparisons can be made during the course of investigating the effects of a particular variable.
In the case of Krusty Krabs, the group that was given regular breath mint without the secret ingredient (group B) will provide the basis for comparing with the other group that received the mint with the secret ingredient (A).
Hence, the people in group B served as the control group.
scientists can understand and learn about evolution by studying fossils. However, whole and intact specimens are hard to come by. To study these specimens, scientists use technologies such as
Answer: fossils and 3-D printers
Explanation:
Answer:
D.
Explanation:
measures the amount of mass contained in a given
volume
Answer: Density is a measure of how much mass is contained in a given volume.
Explanation: Hope this helps!
Based on their half-life values, which radioisotope would be best suited to determine the age of a woolly mammoth bone
Answer:
Wolly mammoths existed about five million years ago. Therefore, based on their half-life, the radioisotope which would be best suited to determine the age of a wooly mammoth bone is Uranium - 235 whose half-life is approximately 700 million years.
Explanation:
Uranium 235 is a variant or an isotope of Uranium. Isotopes are a derivative of a particular chemical element which are alike but different in the number of nucleons they contain.
In relation to age testing, the time taken for any specified property to decrease by half of its original value is called a half-life.
Thus the radioactivity of Uranium - 235 takes about 700 million years to fall to half it's original value.
Because of its half-life, Uranium - 235 is the best used when dating very old fossils.
Cheers
A(n)
is a group of organs that work together to perform a common function
Cell
Tissue
Organ
Organ system
Answer:
Tissue
Tissues are groups of similar cells that have a common function. The four basic tissue types are epithelial, muscle, connective, and nervous tissue. Each tissue type has a characteristic role in the body:
Epithelium covers the body surface and lines body cavities.
Muscle provides movement.
Connective tissue supports and protects body organs.
Nervous tissue provides a means of rapid internal communication by transmitting electrical impulses.
Find two predator-prey relationships. Explain the relationship. Identify how the predator
“hunts” its prey, and any methods the typical prey uses to avoid predation.
Answer:
Some examples of predator and prey are lion and zebra, bear and fish, and fox and rabbit. The words "predator" and "prey" are almost always used to mean only animals that eat animals, but the same concept also applies to plants: Bear and berry, rabbit and lettuce, grasshopper and leaf.
Explanation:
describe the arrangements of epithelial and connective tissues in the four types of membranes.
Answer:
Membranes are thin layers of epithelial tissue usually bound to an underlying layer of connective tissue. Membranes cover, protect, or separate other structures or tissues in the body. The four types of membranes are: 1) cutaneous membranes; 2) serous membranes; 3) mucous membranes; and 4) synovial membranes.
Cutaneous, mucous, serous and synovial membrane have a thin layer of epithelial tissue which is bounded by a connective tissue under it.
What is epithelial tissue?"It is a type of body tissue that forms the covering on all internal and external surfaces of your body, lines body cavities and hollow organs and is the major tissue in glands."What is connective tissue?"It is a tissue that connects, supports, binds, or separates other tissues or organs."What is cutaneous membrane?It is also known as skin.It protects our body's tissue and organs from damage.What is mucous membrane?It is an inner lining of some organs and body cavities that produces mucous.What is serous membrane?"It line body cavities that do not open directly to the outside, and they cover the organs located in those cavities. "What is synovial membrane?These are layer of connective tissue present in joints, cartilages, etc. and they secrete synovial fluid.Hence, all the membranes are formed of epithelial tissue which is bound by an underlying connective tissue.
To know more about epithelial tissue here
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8. Describe: water cycle, carbon cycle, nitrogen cycle
Answer:
water: total renewable, natural fresh, sparkling mineral, permanent fresh, yon wan, unlimited hot, cupful cold, iced mineral, much stagnant, clockwise warm, limited fresh, inadequate potable, dead low, fresh potable
carbon cycle: the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere. ... Carbon is released back into the atmosphere when organisms die, volcanoes erupt, fires blaze, fossil fuels are burned, and through a variety of other mechanisms.
nitrogen cycle: the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates among atmosphere, terrestrial, and marine ecosystems. The conversion of nitrogen can be carried out through both biological and physical processes.
Explanation:
How does geography influence genetics
Answer:
Environmental variables can influence the movement of gametes, individuals and groups of individuals among natural populations to affect gene flow patterns1, which may have a profound influence on the spatial and temporal distribution of genetic variation and further, evolutionary progress of natural populations2,3
Explanation:
Does a Habitat involve: (a) Abiotic factors (b) Biotic factors, or (c) both?
Answer: c
Explanation: a habitat is made up of living and nonliving things, it’s made up of living things which can feed off of both living and non-living things, additionally non-living things provide shelter and an environment for the living things.
Answer:
c. both
Explanation:
Why do we think that some cell signaling molecules have a long evolutionary history?
Answer: Cell signaling involves the relationship between a cell and its receptor which gets the hormones and other agents which controls the activity of the cell.
Explanation:
It can be classified as mechanical or biochemical depending upon the kind of signal. Mechanical signals are the forces produced by the cell or exerted by the cell. Biochemical signals are derived by the biomolecules like proteins, ions, gases, and lipids. These biomolecules have an evolutionary history as they are developed during the primitive atmosphere of earth by the inorganic molecules of carbon dioxide, methane, and water present in the primitive earth's atmosphere. These molecules are basis of development of life as they were responsible for generation of biomolecules like proteins, and lipids necessary for sustaining life on earth.
Hi plz help me with this :) It’d mean a lot. My work got deleted and I don’t remember this one.
Answer:
Coniferous forests thrive in tropical and subtropical climates (areas with tropical latitudes). This makes the area climate more humid. During winter months, precipitation falls as snow, while in the summer, it falls as rain.
Pine trees reproduce by producing seeds which are dispersed throughout the forest using pinecones. Hope this helps :)
Explanation:
Which of the following are functions of lipids? Choose three correct answers
BESIDES Energy, what does ATP give off that helps maintain body temperature?
Answer:
Rate
Explanation:
Answer:
When the amount of ATP is available in excess of the body's requirements, the liver uses the excess ATP and excess glucose to produce molecules called glycogen. Glycogen is a polymeric form of glucose and is stored in the liver and skeletal muscle cells.
Explanation:
Which description most strongly creates a joyful mood? (1 point) Jessie leapt through the door, bobbed and danced down the sidewalk, climbed as high as he could in the dogwood tree, and roared loudly the words from the song "Lollipop, Lollipop." Jessie slumped out the door, wishing he could remember the words from "Lollipop, Lollipop" or some other silly song that would take his mind off his troubles. Jessie stepped through the front door, making a careful note to try to forget the silly song "Lollipop, Lollipop" that was running constantly, painfully through his head. Jessie walked out the door, snapping his fingers and humming the tune from the song "Lollipop, Lollipop" as if he hadn't a care in the world or a thought for tomorrow.
Answer:
"As if he hadnt care in the world or a thought"
Explanation:
This description most strongly creates a joyful mood because of his joy. He doesnt seem to be stressed or overthink any particular issue. I hope this helped have a good day
what is the relationship between independent and dependent variable
Answer:
Variables are given a special name that only applies to experimental investigations. One is called the dependent variable and the other the independent variable. The independent variable is the variable the experimenter changes or controls and is assumed to have a direct effect on the dependent variable.
Explanation:
What is the function of the circulatory system? *
A. Transports oxygen, waste, and nutrients around the body.
B. Removes waste from the body
C. Attaches to bones helps the body move
D. The nervous system gathers and interprets information and sends messages throughout the body.
Answer:
A
Explanation:
please give brainlest
Research has shown that the treadmill training increases the number of certain energy releasing structures in the brain cells of rats. Which cellular structure does this show
Answer:
Mitochondria
Explanation:
According to this question, treadmill training has been researchfully shown to increase the number of certain energy releasing structures in the brain cells of rats. The cell consists of certain structures that play specific roles called ORGANELLES.
One of these organelles called MITOCHONDRION is the one responsible for synthesizing energy in the cell. Hence, the mitochondrion is the structure being shown/depicted as the energy releasing structures in the rat's brain cells.
Explain how a population of lions living in a park is different from a population of lions living in the wild.
Answer: search it lol
Explanation:
1.Contrary to what many people are promoting, this novel coronavirus is both more contagious and more lethal than most strains of flu. In what ways does infection with this virus differ from infection with the typical flu virus?
Answer:
a
Explanation: