Answer:
A AND E
Explanation:
Biotic factors found in the savanna biome include all animals such elephants, giraffes, lions, zebras, monkeys and cheetahs. Biotic factors also include all fungi and bacteria found in the savanna.
Answer:
It is A D AND E I know because I just did this
Explanation:
Which describes the habitat of a frog?
color for camouflage
prey for snakes
eats insects
marshes and ponds
Marshes and ponds describe the habitat of a frog. So, the correct option is D.
What is Habitat?An area or place where an organism or a collection of organisms naturally lives and thrives is known as a habitat. It includes all the physical, biological and environmental elements necessary for growth and reproduction in a given place. A habitat can be any form of ecosystem, including a forest, desert, ocean, swamp, or dryland.
Temperature, precipitation, soil, vegetation, and other elements that are specific to each ecosystem affect what types of organisms can survive there. Other important elements of a habitat are access to food, water and shelter. Habitat theory is important to ecology and conservation biology.
Therefore, the correct option is D.
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What is true for an energy resource with a low net energy?
a. Very little energy goes into making it available.
b. It cannot be used to produce electricity.
c. It needs subsidies to compete in the marketplace.
d. It makes as much high-quality energy available as possible.
e. It is rarely used as a resource in more-developed countries.
Answer:
B
Explanation:
List 4 chordate characteristics.
Answer:
notochord, dorsal hollow nerve cord, pharyngeal slits, and a post-an4l tail
Explanation:
had to censor second to last word but the 4 is an a
Which surface was warmer during the month of October? The pond or the sidewalk?
Answer:
The pond was warmer during the month of October.
Explanation:
Water has a high specific heat capacity, therefore more heat is required to change its temperature. This is why aquatic life is able to stay alive even when temperatures drop drastically. The sidewalk however, will more than likely adapt to the temperature change quickly as concrete does not have a very high specific heat capacity.
Offspring of certain fruit flies may have yellow or ebony bodies and normal wings or short wings. Genetic theory predicts that these traits will appear in the ratio 9:3:3:1 (9 yellow, normal: 3 yellow, short: 3 ebony, normal: 1 ebony, short). A researcher checks 100 randomly selected fruit flies and finds the distribution of the traits to be 59, 20, 11, and 10, respectively. Are the results this researcher observed consistent with the theoretical distribution predicted by the genetic model
Answer:
Yes, the observed results are consistent with the theoretical distribution predicted by the genetic model. The population is in equilibrium.
Explanation:
Available data:
Offspring of fruit flies may have yellow or ebony bodies and normal wings or short wings.Expected phenotypic ratio 9:3:3:19 yellow, normal: 3 yellow, short: 3 ebony, normal: 1 ebony, shortSample size , N = 100Phenotypic distribution 59:20:11:10To know if these results are consistent with the expected ones, we need to develop a chi-square analysis. To do it we need the following information
Chi square= ∑ ((Obs-Exp)²/Exp)- ∑ is the sum of the terms
- Obs are the Observed individuals
- Exp are the Expected individuals
Freedom degrees = K – 1- K =genotypes number = 4
Significance level, 5% = 0.05 Table value = Critical value
First, define the hypothesis:
Hypothesis: The allele of this population will assort independently. The population is in equilibrium
H₀= Individuals will be equally distributed.
H₁ = Individuals will not be equally distributed.
Second, we need to get the expected number of individuals with each phenotype. To do it, we will use the expected phenotypic ratio and the total number of individuals in the sample. We can just perform a three simple rule, as follows:
16 ------------------------------------ 100 individuals in the sample ------- 100%
9 yellow, normal ---------------- X = 56.25 individuals -------------------56.25%
3 yellow, short ------------------- X = 18.75 individuals --------------------18.75%
3 ebony, normal -----------------X = 18.75 individuals ---------------------18.75%
1 ebony, short ---------------------X = 6.25 individuals ----------------------6.25%
Now that we know the expected numbers of individuals with each genotype, we can compare them with the observed ones.
yellow, normal yellow, short ebony, normal ebony, short
Expected 56.25 18.75 18.75 6.25
Observed 59 20 11 10
The chi-square value = Σ(Obs-Exp)²/Exp.
So now we need to calculate (Obs-Exp)²/Exp
yellow, normal(Obs-Exp)²/Exp = (59-56.25)²/56.25 = 0.134
yellow, short(Obs-Exp)²/Exp = (20 - 18.75)²/18.75 = 0.083
ebony, normal(Obs-Exp)²/Exp = (11 - 18.75 )²/18.75 = 3.203
ebony, short(Obs-Exp)²/Exp = (10 - 6.25)²/6.25 = 2.25
X² = Σ(Obs-Exp)²/Exp = 0.134 + 0.083 + 3.203 + 2.25 = 5.67
X² = 5.67Significance level = 0.05Degrees of freedom = genotypes number - one = 4 - 1 = 3Critical value or table value = 9.348P₀.₀₅ > X2
9.348 > 5.67
There is not enough evidence to reject the null hypothesis. The genotypes might be in equilibrium, and there might be an independent assortment.
Diffusion is a process which does not
require any energy. Why is this?
A. Because molecules move down an equilibrium slide.
B. Because molecules move down an active transport
tunnel.
C. Because molecules move down a concentration gradient.
Answer:
C. Because molecules move down a concentration gradient
Explanation:
Molecules move from a high concentration to a lower concentration
Identify how information for specifying the traits of an organism is carried in the DNA.
Answer: DNA carries all of the information for your physical characteristics, which are essentially determined by proteins. So, DNA contains the instructions for making a protein. In DNA, each protein is encoded by a gene (a specific sequence of DNA nucleotides that specify how a single protein is to be made).
Explanation:
The traits or characters are present in the DNA in the form of genes. Genes are short stretches of nucleotides present in DNA and represent the encoded message that is present in the individual.
What is a gene?Genes are present in the DNA. It carries information about the traits that are expressed in an individual. Genes come from parents to offspring, so they are hereditary and pass from one generation to the next. From DNA, mRNA is formed from the gene by the process of transcription.
This mRNA is again converted to proteins or polypeptides by the process of translation. This product is the result of the message that is present in the gene. Example: melanin pigment and skin color variation. As different persons have variations in their genes, the production of this melanin protein synthesis varies, and as a result, skin color among individuals varies.
Hence, the information for specifying the traits is carried by genes present in DNA.
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1. The passage above describes the interactions of several ecosystems, what is the overall theme of the
entire article? "UNDERLINE the sentence that serves as the topic sentence or thesis for the article.
a) to compare the food chains of each ecosystem
b) to convince the reader to protect the environment
c) to explain what keystone species are important in each ecosystem
Answer: to explain what keystone species are important in each ecosystem
Explanation:
The overall theme of the article is to explain what keystone species are important in each ecosystem.
Keystone species is referred to as an organism that defines the ecosystem as a whole. They help define the habitat's biodiversity.
It should be noted that despite the fact that every living organisms depends on each other, some species are more vital than others and when they're removed, there will be a drastic change in the habitat.
Taxonomic classification systems for organisms are similar to many other classification
systems. The illustration below compares the National Football League to the currently
recognized taxonomic structure.
?
?
Phylum
?
?
Family
?
Species
Professional Sports Organization
NFL
Conference
Division
Team
Office/Defense
Position
Player
1 According to the diagram, the level labeled Professional Sports Organizations is most
likely which taxonomic classification?
A Class
B Domain
C Kingdom
D Order
Answer:
Domain
Explanation:
“Professional Sports Organization” is listed at the very top, or 2 tiers above Phylum. 2 tiers above Phylum is Domain.
Why does an atom have a neutral charge?
A. It has equal numbers of electrons and neutrons.
B. The number of neutrons equals the number of protons and
electrons in the atom.
C. It has equal numbers of electrons and protons.
D. It has equal numbers of neutrons and protons.
ITS C
The human body is made up of several
systems. Each of these systems works
together to maintain homeostasis in the
organism. For example, the respiratory
system takes in oxygen and the oxygen is
transported through the body by the
cardiovascular system. The human body is
an example of
A. an open system.
B. a closed system.
C. a neutral system.
How can a change in genotype affect the phenotype?
Answer:
The genome in which a genotype is found can affect the expression of that genotype, and the environment can affect the phenotype. Genes can also be pleitropic when they affect more than one trait. The single base pair mutation that lead to sickle cell anemia is a classic example.
Answer: population
Explanation: An organism's genotype is the set of genes that it carries. ... However, since an organism's genotype generally affects its phenotype, the phenotypes that make up the population are also likely to change. For example, differences in the genotypes can produce different phenotypes.
What do ginsenosides do to muscles
Answer:
Panax ginseng (Chinese or Korean ginseng) has been shown to have similar properties under certain circumstances. McNaughton et al., 1989 noted increases in pectoral strength, quadriceps strength, and post-exercise recovery following dietary supplementation with ginseng root powder.
Explanation:
An eastern screech owl, a carnivore, might compete with which organism most intensely for resources?
A. hawk (secondary consumer)
B. mountain lion (secondary consumer)
C. wren (primary consumer)
D. mouse (primary consumer)
Answer:
The answer is A
Explanation:
Let us take a look at the owl, it is a kind of carnivore, so it must be a secondary consumer(btw, primary consumers are herbivores). So we can eliminate answer C and D. The competition between the same species for this situation is the most intense one, so we can eliminate answer B as well, since hawk and owl are all birds. So the answer is A.
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PLSS HELP ME!! NO LINKS!!
*fill in the blanks*
______ formation is caused by
dripping water shaping upside down
cones from cave roofs. This is an example
of________
(weathering, erosion,
or deposition)
________ formation is caused by a small amount of minerals dripping in the dissolved water during stalactite formation. This is an example of______ (weathering, erosion, or deposition)
Plss help me:(( i will give you BRAINLYEST!!
Answer:
1 stalactite
2 deposition
3 stalagmite
4 deposition
Explanation:
If a scientist found a beaker of a substance in a lab, which of the following would the scientist most likely use to identify the substance?
A. taste, smell, touch and sound
B. Melting point, ability to burn, boiling point and density
C. Poking, prodding, pouring and partaking
D. Research on Wikipedia
Which organisms are secondary consumers in this food web? Select all that apply
Rockskipper, Pufferfish and Peacock Flounder are secondary consumers in this food web. So, the correct options are A, B and C.
What is Food web?A food web is a diagram that shows what is eaten with what in an ecological context and how food chains naturally connect to one another. Consumer-resource system is another term for the food web.
A food web is a comprehensive account of the species that make up an ecosystem and their interactions with one another. It demonstrates how energy is moved along food chains that are connected to other food chains.
After primary consumers, who are primarily herbivores, are omnivores, carnivores, and secondary and tertiary consumers. The apex predators are those animals that have no other predators save humans. They are at the highest point in the food chain.
Therefore, the correct options are A, B and C.
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Write the CODON that corresponds with each amino acid. There may be more than one. The full names are written, but the codon chart only shows the first three letters. proline ______________________ glycine ______________________ valine ______________________ phenylalanine ______________________ histidine ______________________ arginine _________________
Answer:
In protein synthesis, different mRNA codons produce different amino acids by the translation process with the help of ribosomes and tRNA. These mRNA sequences are read in sets of three which are termed as triplet codons. Specific amino acids are produced by different codons, however, more than one codons code for one amino acid. The given amino acids correspond with the following codons:
Proline: it corresponds with four codons
1. CCT
2. CCC
3. CCA
4. CCG
Glycine: it corresponds with four codons
GGT
GGC
GGA
GGG
Valine: it corresponds with four codons
GTT
GTC
GTA
GTG
Phenylalanine: it corresponds with two codons
TTT
TTC
Histidine: it corresponds with two codons
CAT
CAC
Arginine: it corresponds with six codons
CGT
CGC
CGA
CGG
AGA
AGG
Which of the following statements about coral reefs is TRUE?
O Coral reefs are generally less than ten years old.
o Coral reefs contain a great diversity of life and species.
O Coral reefs cover most of the world's ocean floor.
O Coral reefs contain very few species other than fish.
Answer:
The correct answer is "Coral reefs contain a great diversity of life and species." as while they cover 1% of the ocean floor, they are homes to more than 25% of marine life.
Explanation:
The following statements about coral reefs are true: "Coral reefs contain a great diversity of life and species." That is the second option, as the coral reefs are among the most diverse and biologically rich ecosystems on the planet.
What is the importance of coral reefs to the ecosystem?The coral reef is a type of structure that forms large, interconnected structures, creating a habitat for a wide range of other species, such as fish, crustaceans, and mollusks, and the reef provides shelter and food for a diverse array of organisms. Coral reefs generally occur in warm waters along the coasts of tropical and subtropical areas, so climate change harms them.
Hence, the following statements about coral reefs are true: "Coral reefs contain a great diversity of life and species." That is the second option, as the coral reefs are among the most diverse and biologically rich ecosystems on the planet.
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HELPPP PLEASEEE
4 ANNOTATE Use the correct terms to complete this diagram showing the reactants and
products for each chemical reaction.
Answer:
Explanation:
Photosynthesis
Reactants: Carbon dioxide and water
Products: Glucose and oxygen
Respiration
It's the opposite of photosynthesis:
Reactants: glucose and oxygen
Products: Carbon dioxide and water
the most significant problems for U.S. national parks.
Which of the following describes the process of DNA making copies of itself.
Transcription
Substitution
Translation
Replication
La función del sistema digestivo es digerir los alimentos para que puedan ingresar a las células, al respecto, ¿Qué es digerir?
Answer:
La digestión es importante para descomponer los alimentos en nutrientes, que el cuerpo usa para obtener energía, crecimiento y reparación celular. La comida y la bebida deben transformarse en moléculas más pequeñas de nutrientes antes de que la sangre las absorba y las lleve a las células de todo el cuerpo. ˗ˏˋ ❤︎ ࿐
Explanation:
Hat percent of electricity in the UK will come from renewable sources by 2010? a. 1% c. 10% b. 5% d. 40%
Answer:
C, 10%
Explanation:
For the year of 2010, it's definitely 10%
What is the Complementary strand?
Original: UACUCAGGUUCA
Complementary strand:
Answer:
AUGAGUCCAAGA
Explanation:
because adenine always pair's with thymine and cytosine with guanine. you can also remember it as Apple Tree and Car Garage.
Which type of organisms get their energy directly from the Sun?
A
Producers
B
Decomposers
C
First-level consumers
D
Second-level consumers
A. Producers is the answer.
Which explanation is best supported by the numbers in the chart?
Lion and cheetah populations compete for the food source of zebras, and lions outcompete cheetahs.
The dwindling zebra population has led to the decline of the predator lion and cheetah populations.
Overhunting of lion and cheetah populations has led to a decline in the food source population.
Lion and cheetah populations compete for the food source of zebras, and cheetahs outcompete lions.
Answer:
The dwindling zebra population has led to the decline of the predator lion and cheetah populations.
Explanation:
The decrease in zebra population also decreases the population of the predator lion and cheetah because both predators depends on zebra for their survival. Both predators used zebra as a source of food for their growth and survival so if there is high availability of zebra so the population of Lions and cheetah also increases while on the other hand, if there is decrease in zebra population, the population of lion and cheetah also decreases because of less available food for them.
Answer:
B) The dwindling zebra population has led to the decline of the predator lion and cheetah populations.
Explanation:
2021 edge :)
Why do scientists carry out experiments?
A.
Because scientific knowledge is based on observations

B.
Because scientific knowledge is full of untested theories

C.
Because scientists like to control variables

D.
Because scientists like to work in labs
Answer:
A
Explanation:
the scientist always makes a hypothesis
Which biomes would be found nearest to the equator?
tropical rain forests and savannas
tundras and taigas
tropical rain forests and taigas
tundras and savannas
Answer:
Tropical rain forests and savannas
Explanation:
Tundras are found at the north and south poles. Taigas are found in the northern areas but not near the equator.
Answer:
Tropical Rain Forests and Savannas!
Explanation:
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Plant Cell Writing Prompt
Part 2: Using your notes, write a detailed explanation of a plant cell, one of the most complex cells. Please be sure to write at least two paragraphs and highlight all parts used in your writing. Make sure your essay includes all the following parts:
cell membrane, genetic material (DNA), cytoplasm, ribosomes, cell wall, nucleus, rough endoplasmic reticulum, smooth endoplasmic reticulum, Golgi apparatus, a large vacuole, mitochondria, chloroplasts, lysosome.
Answer:
Plant cell
Explanation:
Cell wall: cell wall is only found in plant cell . it is made up of cellulose. it's function is to give shape to the cell and protect the delicate inner parts of the cell. this cell is fully permeable. it means it will allow all substance to pass in. cell membrane is made up of protein and lipids. it's function is to control what comes in and out of the cell. this membrane is selectively permeable. it means it allows some substance to pass in and others don't. cytoplasm is large sac like structure. most chemical process occur here. chromoplast are the green pigments.
cell wall is only found in plant cell . it is absent In animal cell . the neucleus in the plant cell contain a pigments haemoglobin, which contain genetic information to the cell .