Explanation:
The first organism is a Filter Feeder, which filters water to consume phytoplankton (microalgae).
The second organism is a Scraper/Grazer, which consumes leaves and algae and fungi on the leaf surface.
The third organism is a Shredder, which consumes algae on rocks.
The fourth organism is an Invertebrate Predator, which preys on small invertebrates.
The fifth organism is a Vertebrate Predator, which preys on vertebrates and invertebrates.
Which government agency monitors the cleanliness of food and ensures that no food-borne illnesses arise?
O Food and Drug Administration (FDA)
United States Department of Agriculture (USDA)
O Environmental Protection Agency (EPA)
O Bureau of Land Management (BLM)
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Answer:
Food and Drug Administation (FDA)
Explanation:
I read the lesson. (Its not hard)
Answer:
.∵∴yeah, i agree with them. Thats the only one that fits.∵∴
Explanation:
which trophic level has tge least number of organisms
Answer:
tertiary consumers
The trophic level that has the least biomass is usually the tertiary consumers.
please help i am about to fail this class off i don’t get an A
Answer:
Same for spanish here i'll help u of u help me
Explanation:
Answer:
Mitosis
Explanation:
Meiosis is the type of cell division that creates egg and sperm cells. Mitosis is a fundamental process for life. During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells.
How can twins be identical?
Answer:C
Answer:
Identical twins are also known as monozygotic twins. They result from the fertilization of a single egg that splits in two. Identical twins share all of their genes and are always of the same sex. In contrast, fraternal, or dizygotic, twins result from the fertilization of two separate eggs during the same pregnancy.
Explanation:
Hope that helps!
Select the correct answer from each drop down menu.
The force of gravity between two object depends on ___ and ___
Blank1:
A.Mass
B.Momentum
C.velocity
Blank2:
A.Color
B.Height
C.Distance
Answer:
Try mass and distance
Explanation:
Which of the following are correct when comparing aerobic respiration and anaerobic respiration
Answer:
where is the following?
Explanation:
QUESTION:
Which of the following accurately compares aerobic and anaerobic respiration?
Answer: CORRECT (SELECTED)
Aerobic respiration requires oxygen, and anaerobic respiration does not.
Explanation:
Aerobic respiration occurs in the presence of oxygen. Anaerobic respiration does not require oxygen to proceed.
which macromolecule are broken down to make enzymes and structures?
( REWARD AND BRAINLIEST )
Proteins
Fats
Carbohydrates
Lipids
The top of the leaf in this picture has a wax layer called a cuticle how does the cuticule layer help a leaf
Answer:
Cuticle helps to prevent from loss of water vapour. It is also to trap the sunlight.
Explain what type of logging would most likely necessitate reforestation afterwards.
Clear-cutting is the even-aged logging method that does the most damage. Other approaches to even-aged management include leaving one or two seed trees for the aim of refilling the area with pine cones.
What are the effect of deforestation on logging?Logging is essentially an action, and deforestation is the outcome of that action. But logging is just one of several factors that contribute to deforestation.
Urbanization, agricultural development, and climate change are all major factors in the devastation of our forests and tropical rainforests.
Another even-aged logging technique involves first removing certain trees and then later removing the remaining trees.
Therefore, Clear-cutting is the even-aged logging method that does the most damage.
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Which are ways of showing probability? Select 4 options. 50% 557 1 × 104 25% 3/4 7/8
Answer:
Option: A and D are the correct answer.
A. 50% and D. 25%
Explanation:
We know that the probability of an event is the chance of occurring of an event.
The probability of an event always lie between 0 and 1.
It is equal to zero if the event will never occur and is equal to 1 if the event is certain to occur.
Also, the probability could be in ratio or it could be in percentage and the percent may be between 0%-100%
Hence, in the given options:
B) 557 is incorrect as the probability is greater than 1.
c) 1×104=104 is incorrect since the probability is greater than 1
Hence, the correct options are:
A. 50%
and D. 25%
Answer:
1,3,5,6
Explanation:
In a dihybrid cross between two pea plants, one parent is green pod-purple flower (GgPp). The other parent’s genotype is unknown. The phenotype f ratio of their offspring is (1 Green Pod-Purple Flower : 1 Yellow Pod-Purple Flower). What is the genotype of the unknown parent?
The unknown parent's genotype in the dihybrid cross is likely GgPp. This genotype would result in a 1:1 phenotypic ratio of green pod-purple flower to yellow pod-purple flower offspring.
In a dihybrid cross, we consider two independent traits. In this case, the traits are pod color (green or yellow) and flower color (purple). The known parent's genotype is GgPp, where G represents the dominant allele for green pod color, g represents the recessive allele for yellow pod color, P represents the dominant allele for purple flower color, and p represents the recessive allele for non-purple (white) flower color.
Since the phenotypic ratio of the offspring is 1 green pod-purple flower : 1 yellow pod-purple flower, we can infer the possible genotypes of the unknown parent. The observed phenotypic ratio suggests that both parents contribute equally to the offspring's traits. Therefore, the unknown parent likely carries the same genotype, GgPp.When the unknown parent's genotype is GgPp, it means that it can produce two types of gametes: GP and gP. The known parent, GgPp, can also produce two types of gametes: GP and gP. The cross between these parents can result in four possible genotypes for the offspring: GGPp, GgPp, Ggpp, and ggPp. However, only two of these genotypes correspond to the observed phenotypic ratio: GgPp (green pod-purple flower) and ggPp (yellow pod-purple flower).Therefore, the genotype of the unknown parent is likely GgPp, which produces the desired 1:1 phenotypic ratio of green pod-purple flower to yellow pod-purple flower in the offspring.
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help please!!! due in an hour!
Answer:
a microscope
Explanation:
u cant use the other instruments to find out
Answer: A microscope
Explanation: The answer is c
HELP ME WITH 13 AND 14 PLZ
Answer:
Explanation:
13 is products and for 14 i cant see the whole diagram
A scientist observes two cells. Cell 1 and Cell 2 both contain DNA (genetic material) and ribosomes. However, Cell
1 contains a nucleus and other membrane-bound organelles, which Cell 2 does not
What is the correct classification for each of the cells?
A
Cell 1 - Eukaryotic, Cell 2 = Prokaryotic
B
Cell 1 = Prokaryotic, Cell 2 = Eukaryotic
с
Cell 1 = Eubacteria, Cell 2 = Archaea
D
Cell 1 = Archaea, Cell 2 = Eubacteria
Answer:
A - Cell 1 - Eukaryotic, Cell 2- Prokaryotic
Explanation:
In the given case, Cell 1 is eukaryotic and Cell 2 is prokaryotic.
• All the living organisms comes in the two groups, that is, prokaryotes and eukaryotes.
• The unicellular organisms, which are devoid of membrane-bound compositions, for example the nucleus are the prokaryotes. They are small, simple and measure about 0-1.5 micrometer in diameter.
• The prokaryotic cells are devoid of membrane bound structures like nucleus and membrane bound organelles.
• On the other hand, the organisms, which possess a nucleus and other organelles surrounded by a plasma membrane are known as the eukaryotes.
• The internal structures, that is, the organelles are accountable for different functions, like synthesis of proteins and production of energy.
Thus, in the given question Cell 1 is eukaryotic and Cell 2 is prokaryotic.
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Which of the following best describe the process of energy conversion that takes place in the mitochondria?
A. The energy in glucose molecules are transferred to the phosphate bonds in ATP B. Energy needed to bond carbonate
C. The energy in water molecules and solar energy activate the anaerobic cycle D. Oxygen molecules release energy
Answer:
A. The energy in glucose molecules are transferred to the phosphates in ATP
Explanation:
The best description of the process of energy conversion that takes place in the mitochondria is the energy in glucose molecules is transferred to the phosphate bonds in ATP. The correct option is a.
What is energy conversion?The mitochondria in the cell use oxygen to transform the chemical energy that comes from the food we eat into useful energy. Plant cells need chloroplasts to facilitate photosynthesis. The mitochondria are the heart of the cell, converting energy throughout.
When burning wood, heated other stimulated atoms cause the log to release stored potential energy (in the form of chemical energy). Combustion is the name of the chemical reaction that calls for oxygen.
Therefore, the correct option is a. The energy in glucose molecules are transferred to the phosphate bonds in ATP.
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In the water cycle, the sun provides
A. energy for water to evaporate from oceans, lakes and rivers.
B. water for evaporation to happen.
C. water for condensation to happen.
D. energy to produce electricity.
Answer:
peperoni is GARROS
Explanation:
Question 2 of 10
Which statement best describes a surface wave?
A. It forms when electric and magnetic fields vibrate perpendicularly
to each other.
B. It occurs at the boundary of two different mediums, such as air
and water
C. It forms when matter vibrates in a direction that is perpendicular
to the direction of the motion of the wave.
D. It forms when matter vibrates in a direction that is parallel to the
direction of the motion of the wave.
SUBMIT
Answer:
The answer B.
Explanation:
I took AP EX quiz.
The statement best describes a surface wave is it occurs at the boundary of two different mediums, such as air and water. The correct option is B.
What is the surface wave?Surface waves are the mechanical waves that spread along the boundary between many media. An example of a surface wave is a gravity wave.
Surface waves run along the medium, such as water and air, or the interface between two liquid surface
Thus, the correct option is B. It occurs at the boundary of two different mediums, such as air and water.
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Several temperature-sensitive mutant strains of E. coli display the following characteristics.
Mutant (a): Newly synthesized DNA contains many mismatched base pairs.
Mutant (b): Okazaki fragments accumulate, and DNA synthesis is never completed.
Mutant (c): No initiation occurs.
Mutant (d): Synthesis is very slow.
Mutant (e): Supercoiled strands remain after replication, which is never completed.
What enzyme or function is being affected in Mutant (a), causing many mismatched base pairs?
a. No DNA repair
b. No Primase activity
c. No DNA gyrase activity
d. Only DNA polymerase I activity
e. No DNA ligase activity
The enzyme DNA polymerase I is being affected in mutant (a), causing many mismatched base pairs. Thus, the correct option is C.
What is the role of DNA polymerase I?DNA polymerase I (pol I) processes RNA primers during the lagging strand synthesis and also fills small gaps during the DNA repair reactions. However, it is still unclear how DNA polymerase I and polymerase III work together during the process of replication and repair or how the extensive polymerase I processing of Okazaki fragments is in vivo.
In bacteria, all the three DNA polymerases that is I, II and III have the ability to proofread the DNA molecule, using 3'→5' exonuclease activity in the cell. When an incorrect base pair is recognized by this enzyme, DNA polymerase reverses its direction by single base pair of the DNA molecule and excises the mismatched base pair.
Therefore, the correct option is C.
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A scientist is investigating cell transport.She observes molecules being transported into a cell through proteins present in the cell membrane. These proteins do not use energy to transport the molecules. Which of the following best explains the type of cell transport observed by the scientist?
A. Active transport because the membrane proteins were used
B. Diffusion because the molecules were entering the cell
C.Facilitated diffusion because the proteins were not using energy
D.Osmosis because the molecules were moving against the concentration gradient
Answer: C
Explanation:
A type of facilitated transport called facilitated diffusion involves the passive movement of molecules along their concentration gradient, this second molecule is an integral membrane protein. Thus, option C is correct.
What is diffusion?Diffusion is the overall net movement of anything from a higher concentration to a lower concentration. A gradient in the Gibbs free energy or chemical potential drives diffusion.
A substance diffuses when it moves from a region of high concentration to one of lower concentration.
When particles in liquids and gases randomly collide and disperse, diffusion takes place. For living things, diffusion is a crucial mechanism because it governs how molecules enter and exit cells.
Cells depend on diffusion to get the nutrients they need to develop and obtain energy, as well as to rid themselves of waste materials.
Therefore, facilitated transport do not use energy to transport the molecules.
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1. What is identity? What does identity mean to you?
Answer:
it means proof of your a specific person
Explanation:
yes
Answer: Identity is not just how other know who you are, but it is what you are on the inside, like you're personality and memories. Identity encompasses the memories, experiences, relationships, and values that create one's sense of self. This amalgamation creates a steady sense of who one is over time, even as new facets are developed and incorporated into one's identity.
Explanation:
What are the source of air pollution and how this pollution affects the turan heath?
Technology can have good and bad effects. What is a bad effect of spraying
pesticides on crops with the use of airplanes?
A. It increases food production
B: it is sometimes sprayed too far from the crops
C. It is decreases the cost of spraying pesticides
D. It lowers the cost of food
Answer: B
Explanation: The others are all good effects of spraying pesticides. B is correct because it is a negative effect of doing so, and I know for a fact that pesticides are very bad for things that they aren’t meant for.
A virus is best described as a
A. partially living agent that causes disease
B. nucleic acid covered by a protein coat
C. living organism that attacks living cells
D. piece of DNA that transforms a bacterium
Answer:
think it is b
Explanation:
cause they not alive
Answer:
B
Explanation:
Which skin layer contains the protein melanin?
The random movement of molecules is referred to as_____
A. Brownian movement
B. Concentration gradient
C. Dynamic equilibrium
What is a meter? Give two examples of objects that are meter length!
Please hurry way over due and I’m confused
Answer:
A meter is a metric unit of length used worldwide by scientists to measure lengths and distances between objects.
presentation on hiv/aids
Which of the following is arranged in the order of increasing levels of organization?
A
Molecule, atom, cell
B
Cell, atom, molecule
с
Atom, molecule, cell
D
Cell, molecule, atom
Answer:
c
Explanation:
I assume you mean going from smallest to biggest a atom is the smallest, then a molecule, then a cell
The following that are arranged in the order of increasing levels of the organization are Atom, molecule, and cell. The correct option is c.
What is the level of organization?The level of organization shows the making up of different matters from the basic unit. The basic unit of all matter is an atom. The atom is the smallest and basic unit of matter.
The level of organization in its increasing order will be from the smallest to the largest unit. The smallest unit is an atom, atoms make up molecules and substances. The molecules join together to form cells or other compounds.
So the level of organization from largest to smallest will be atoms, molecules, and cells.
Thus, the correct option is c. Atom, molecule, cell regarding the level of organization from largest to smallest.
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Choose the true statement(s) about mutations. To be marked correct, you'll need to select all true statements, as there may be more than one correct answer.
A. Mutations can provide an evolutionary benefit.
B. Mutation leads to genetic and phenotypic variation within a species.
C. In humans, somatic cell mutations are not passed to offspring.
D. Evolution rates are faster in bacteria than in humans because most mutations in human cells are silent.
Answer
All four options ( A,B,C,D ) are true about mutations.
Explanation:
A- Mutation can provide an evolutionary benefits
As mutation helps in creating DNA sequence ,new allele(variant of gene) for a specific gene , thus mutations is known to be the first step of evolution.
B- Mutation leads to genetic and phenotypic variation within the species.
In mutation, genetic variation (difference between individual/population) takes place as new alleles are created ,random matings ,fertilization and during meiosis , recombination of homologous chromosomes. One of the type of mutation called gene mutation give rise to genetic variations.
Its an exceptional case of phenotypic variations ,as mostly there is no effect of mutation on phenotypic variation. Very few mutations lead to phenotype variation and in case mutation takes place in phenotype variation ,making the organism well suited to the environment, the a rapid change in the characterstics of the individual species is seen.
C- In humans, the somatic cell mutation are not passed in offsprings.
Somatic cells are present in all over the body except in the cells that give rise to gametes( ie. egg and sperm cells) and produces offsprings . Thus somatic cells are absent in gametic cells ,therefore mutation cannot be passed to human's offsprings or children.
D- Evolution rates are faster in bacteria than in humans because most mutations in human cells are silent.
Due to their fast growth ,bacteria evolve quickly and share genes with each other and even between the species ,also the mutation that are helpful spread faster in bacteria.
In humans, the silent mutation in human cells cause many genetic disorders like Laron dwarfism. About 99.8% genes are silent mutation.
What must be present in order for natural selection to occur in a population?
a
Variation
b
Adaptation
c
Ability to choose traits
d
Unlimited resources among species
PLEASE HURRY
Answer:
adaptation
Explanation:
