Answer:
A
Explanation:
Ella did not preform enough trials to evaluate the pattern in the results.
describe 3 ways people can decrease their ecological footprint to help mange earth's resources?
Question 4
Which BEST describes why certain traits led to an increased frequency within the population of
medium ground finches?
A
because the traits were acquired
B
because the traits were favorable
С
because the traits were inherited
D
because the traits were mutations
Answer:
Explanation:
c
All of the following are true about the structure of DNA excepta.
a. the long strands of nucleotides are twisted into a double helix.
b. short strands of DNA are contained in chromosomes inside the nucleus of a cell.
c. DNA consists of two strands of nucleotides joined by hydrogen bonds.
d. every DNA nucleotide contains a sugar, a phosphate group, and a nitrogen base.
Answer:
short strands of DNA are contained in chromosomes inside the nucleus of a cell.
Explanation:
DNA is an acronym for deoxyribonucleic acid. It is composed of a sugar, a phosphate group, and a nitrogen base.
DNA consists of two strands of nucleotides joined by hydrogen bonds. This makes DNA appear in a double helical structure.
Long strands of DNA are contained in chromosomes inside the nucleus of a cell. Long strands of DNA in the nucleus are rolled into neat little bundles. Hence the statement; ''short strands of DNA are contained in chromosomes inside the nucleus of a cell'' is false.
Which of the following best describes a population?
Answer:
C
Explanation:
Population is the number of simular species in the area, so the land and fish don't count.
Neutral theory proposes that
A) molecular clocks are more reliable when the surrounding pH is close to 7.0.
B) most mutations of highly conserved DNA sequences should have no functional effect.
C) DNA is less susceptible to mutation when it codes for amino acid sequences whose side groups (or R groups) have a neutral pH.
D) DNA is less susceptible to mutation when it codes for amino acid sequences whose side groups (or R groups) have a neutral electrical charge.
E) a significant proportion of mutations are not acted upon by natural selection.
Answer:
The correct answer is E) a significant proportion of mutations are not acted upon by natural selection.
Explanation:
The neutral theory, proposed by Motoo Kimura in 1968, proposes that part of the molecular variability produced by mutations that exists in populations is natural variability, that is, a large part of the genetic variation observed in populations is due to random fluctuation of genetic variants that are neutral, on which natural selection hardly acts, so they are not an evolutionary force since they do not contribute predominantly to natural selection and proposes genetic drift as an evolutionary mechanism.
. Revisa las etiquetas de los alimentos que tengas en tu casa para ver si hay alguno vencido. ¿Qué le recomendarías a tu familia? ¿Por qué?
Answer:
Para comer alimentos sanos y frescos.
Explicación:
Recomiendo a mi familia los alimentos que aún no están vencidos o que son frescos porque los alimentos frescos hacen que nuestra condición de salud sea buena en comparación con los alimentos vencidos. Hay un crecimiento de patógenos como bacterias, hongos, etc.en los alimentos que los hacen dañinos para las personas y causan intoxicación alimentaria en las personas que los consumen, por eso tenemos que ver las etiquetas presentes en los alimentos para verificar su condiciones.
In which order do organisms return
to an ecosystem during primary
succession after an area's ecosystem
has been wiped out?
A. trees, hearty shrubs, lichens
B. lichens, trees, hearty shrubs
C. lichens, hearty shrubs, trees
Answer:
lichens, hearty shrubs, trees
Explanation:
Order:
I-bare rocks,
II-pioneers (mosses, lichen, algae, fungi)
III-annual herbaceous plants
IV-perennial herbaceous plants and grasses
V-shrubs, VI-shade intolerant trees, VII-shade tolerant trees.
(please mark me brainliest) :)
Lichens, hearty shrubs, and trees is the correct order in which the organisms return to an ecosystem during primary succession after an area's ecosystem has been wiped out. Thus, the correct option is C.
What is Primary Succession?Primary succession is the ecological succession which begins in essentially the lifeless areas, such as the regions in which there is no soil or where the soil is incapable of sustaining life where no life form ever existed because of recent volcanic eruption, newly formed sand dunes, or rocks that are left from a retreating glaciers.
The correct order of the Primary Succession is:
Stage I- Bare rocks,
Stage II- Pioneer species such as mosses, lichen, algae, and fungi
Stage III- Annual herbaceous plants
Stage IV- Perennial herbaceous plants and grasses
Stage V- Shrubs, shade intolerant trees, and shade tolerant trees.
Therefore, the correct option is C.
Learn more about Primary Succession here:
https://brainly.com/question/26675203
#SPJ2
Question 7 of 25
Tropical rain forests support more species per unit area than any other
terrestrial ecosystem. What role do rain forests play in the health of the
biosphere?
A. Their colorful birds attract many tourists.
B. Their productive organisms quickly recycle nutrients.
Ο Ο Ο
C. They breed germs in pooling rainwater.
D. They keep plants from overtaking the planet.
SUBMIT
They breed germs in pooling rainwater . I hope this is the correct answer
Answer:
B. Their productive organisms quickly recycle nutrients
Explanation:
Metabolic rate is _____. See Concept 40.4 (Page) View Available Hint(s) Metabolic rate is _____. See Concept 40.4 (Page) determined when the organism is vigorously exercising after consuming a fatty meal the total amount of energy an animal uses in a unit of time typically higher in an ectothermic animal than in an endothermic one the amount of heat gained by an animal in a unit of time directly proportional to body size
Answer:
The correct answer is ''the total amount of energy an animal uses in a unit of time''
Explanation:
The general metabolism or metabolic requirements can be defined as the energy demands that an organism requires for the set of biochemical reactions and physicochemical processes that occur in its cells. This set of reactions allows living beings to grow, reproduce, keep their physical structures in order and respond to external stimuli, among other things. Basal metabolism or Metabolic Rate (BMR) refers to the rate of energy expenditure (the amount of energy [expressed in kilocalories or megajoules (MJ)]) per unit of time that is spent when endothermic animals are in physical rest full. In other words, it is the amount of heat (expressed in calories) that is generated in one hour by an endothermic animal kept at rest. Also, it can be expressed as kilocalories per hour or per kilogram of weight.
Cellular respiration is essential for the survival of the Euglena. Why?
Please help me.
Answer:
This organism is able to carry out both photosynthesis and cellular respiration. That's why cellular respiration is essential for the survival of the Euglena.
A sequence of chemical processes known as cellular respiration convert glucose into ATP, which can then be used as energy for a variety of bodily functions.
What is cellular respiration?Glycolysis, the citric acid cycle, and oxidative phosphorylation are the three basic processes that take place during cellular respiration. The citric acid cycle happens in the mitochondrial matrix, oxidative phosphorylation happens on the inner mitochondrial membrane, and glycolysis happens in the cytoplasm.
Glucose, ATP, and NAD+ are the initial reactants and ATP and H2O are the end products of cellular respiration. The enzymes phosphofructokinase-1, pyruvate dehydrogenase, and isocitrate dehydrogenase control the rate of cellular respiration.
Disorders that interfere with cellular respiration often impair one or more of the enzymes necessary for it, such as succinyl-CoA synthase or pyruvate kinase.
Therefore, A sequence of chemical processes known as cellular respiration convert glucose into ATP, which can then be used as energy for a variety of bodily functions.
To learn more about cellular respiration, refer to the link:
https://brainly.com/question/13721588
#SPJ2
In a non-mutated DNA strand, what base pairs with guanine?
Answer:
Attached to each sugar is one of four bases--adenine (A), cytosine (C), guanine (G), or thymine (T). The two strands are held together by hydrogen bonds between the bases, with adenine forming a base pair with thymine, and cytosine forming a base pair with guanine.
Explanation:
Answer:
cytosine pairs with guanine.
Jane wants to test if strawberries that are kept cold will rot or stay edible. She places a strawberry in the refrigerator and records the date. What variable should be controlled?
Answer:
I think it is the time or the degree of the cooling ability of the refrigerator
5. Microwave
Situation: John saw his mother place a cold bread inside a microwave oven. After 3 minutes, his mom removed the bread from the oven and gave it to John John observed that the bread is warm after it was placed in the microwave oven. John wondered what caused the cold bread to warm up after it was placed in the microwave oven.
Observation/s:
Inference:
A pair of butterflies reproduces and has one thousand offspring. All one thousand of the offspring have the alleles Aa. What is the most likely combination of alleles (genotype) for each parent? Explain your answer.
Answer:
It is expected that each parent is homo-zygous for each trait (i.e., one parent has genotype AA and the other parent has genotype aa)
Explanation:
An F1 hybrid is the first filial generation of the progeny of distinctly different parental types. In this case, it is expected that each parent is homo-zygous for each trait, thereby 100% of all offspring will have genotype Aa (i.e., parental cross: AA x aa >> F1 = 100% Aa). On the other hand, in a cross where one parent is heterozygous for the trait (Aa) and the other parent is homo-zygous (either AA or aa), only 50% of all offspring will have genotype Aa.
how does the pH of milk change when it is fermented to make yoghurt
Answer:
it gets lower
Explanation:
when milk begins to ferment it gets sour becoming more acidic and the pH gets lower.
Responda con verdadero (V) o falso (F), según corresponda. En caso de falso, justifique su respuesta. Todas las células poseen pared celular Las células procariotas se originaron hace 1.500 millones de años aproximadamente_____ Los centriolos son organelas cilíndricas, formadas por proteínas, que intervienen en la división celular____ El ADN determina las características de un organismo____ En las mitocondrias se produce la digestión celular_____ En la definición de célula, la palabra estructural, hace referencia a cómo funciona la célula_____ La palabra Eucariota quiere decir "verdadero núcleo"____
Answer:
Falso
Falso.
Cierto
Cierto
Falso
Falso
Cierto.
Explicación:
Todas las células no tenían pared celular. Sabemos que la célula animal es un tipo de célula que solo tiene membrana celular. Las células procariotas se originaron hace aproximadamente 3,5 mil millones de años. Los centríolos son orgánulos cilíndricos, formados por proteínas, que contribuyen en la división celular. El ADN determina las características de un organismo porque el ADN tiene toda la información sobre los organismos. La digestión celular no ocurrió en las mitocondrias. El lugar de la digestión celular son los lisosomas. En la definición de celda, la palabra estructural, se refiere a la composición y forma de la celda. La palabra eucariota significa "núcleo verdadero" y núcleo verdadero significa que la membrana rodea al núcleo.
Question 7 of 25
Which structure is used by the organism to see the outside world?
Answer:
install
Explanation:
Answer:
Eye
Explanation:
We use the eye to look at things
The pH of seawater is ___, making it alkaline. Seawater has a natural buffering mechanism. Carbon dioxide in seawater and is present in the form of __ ions, which makes the seawater alkaline.
Answer:
8.1 and h+
hope it helps you
How do the process of DNA replication and the laws of inheritance help cells and individuals pass on their
traits?
DNA copying is otherwise known as DNA replication which is the process of producing 2 identical copies of DNA from one original DNA molecule during cell division. DNA copying is important because it generates variation during sexual reproduction which leads to evolution. Also, DNA copying helps in transfer of information or characters from the parents to the offsprings.
Mendel studied traits with only one mode of inheritance in pea plants. The inheritance of the traits he studied all followed the relatively simple pattern of dominant and recessive alleles for a single characteristic. There are several important modes of inheritance, discovered after Mendel’s work, that do not follow the dominant and recessive, single-gene model.
hope it helps
Guanine bonds with
????
Answer:
Answer
cytosine
correct me y'all if am wrong ❤️
Write a short note on broyophytes?
Answer:
Bryophytes are an informal group consisting of three divisions of non-vascular land plants: the liverworts, hornworts and mosses. They are characteristically limited in size and prefer moist habitats although they can survive in drier environments. The bryophytes consists of about 20, 000 plant species.
[tex]\underline{QUESTION:_}[/tex]
[tex]Write~ a ~short~ note ~on~ bryophytes?[/tex]
-----------------------------------------------
[tex]\underline{ANSWER:-}[/tex]
Bryophytes are a loose classification of three non-vascular land plant embryophytes: liverworts, hornworts, and mosses. They are typically small and prefer damp surroundings, however, they may thrive in drier ones. There are over 20,000 plant species in the bryophytes.[tex]\underline{-----------}[/tex]
[tex]\textnormal{HOPE IT HELPS}[/tex]
[tex]\textnormal{HAVE A GREAT DAY!!}[/tex]
what event occured during paleozoic era?
A. diversification of mammals
B. beginning of multicelled life
C. first appearance of most invertebrates
D. dominance of non avian dinosaurs
Answer:
C) first appearance of most invertebrates.
Explanation:
The Cambrian Explosion occurred 542 mya. The earliest complex animals arose in the sea at the beginning of the Cambrian Explosion. It would take another half a billion years for mammals to rise. Multicellular life dates back 1.2 bya, but more cpomplex life, such as animals, did not occur until the Cambrian Explosion. In the beginning of the Cambrian Explosion, many soft-bodied animals, such as jellyfish and sea anemones appeared.
Answer:
C
Explanation:
First appearance of most invertebrates
PLS PLS PLS HHELLPP MEEE
To be perfectly honest, I'm not sure what problem 32 is asking. It seems like there's set up to a question, but the actual question itself is missing.
=============================================
For problem 33, we divide the tape's distance by its time. I'm assuming that problem 33 is using the set up info from problem 32.
Recall that
distance = rate*time
we can rearrange things to say
rate = distance/time
So that's why we divide distance over time. The tape's length is effectively the distance, more or less. Imagine that one marker on the tape travels from one end of the reel to the other. It would have to travel the length of the tape when the full tape duration elapses.
----------
So,
rate = distance/time
rate = (260 meters)/(180 seconds)
rate = (260/180) meters per second
rate = 1.44 meters per second, which is approximate
I'm rounding to 3 sig figs.
What describes a country with less industry and whose citizens have low average incomes.
third world countries
Explanation:
are the results of countries with low exports and high imports
How do the resources available to people influence how they
grow food?
Answer:
grow
Explanation:grow
When 2 or more organisms compete for the same resource there can be a variety of outcomes. What would be one of those outcomes?
Answer:
The biology branch deals with the relations between and physical environment of organisms.
Explanation:
The principle of competitive exclusion states that if two species occupy the same niche, they cannot exist together (competing for identical resources). Two species whose niche overlap can evolve to have different niches through natural selection, resulting in the distribution of resources.
In ecology, interspecific competition is a form of competition where individuals from different kinds compete in an ecosystem for the same resources (e.g. food or space)... There may be interspecific competition if people of two separate species share a limited resource within a single area.
A goal taking which of these lengths of time to achieve is most likely to be a
short-term goal?
A. 25 weeks
B. 25 decades
C. 25 years
D. 25 months
Answer:
A. 25 weeks
Explanation:
It's the shortest amount of time.
Hope this helps! :)
Answer:
25 weeks
Explanation:
25 minutes would probably be a short term goal. If it takes someone only 25 minutes to do, that would be a pretty short and easy goal. It COULD be 25 weeks.
what you mean by accessory pigments?
Which of the following is an example of artificial selection?
Answer: last option
Explanation:
artificial selection is when humans basically pick a desirable trait in a species and take steps to enhance or perpetuate that specific trait so that it's more common
the best option to describe this is the last one, because humans have bred domestic dogs to be less aggressive and more playful or friendly
This sea anemone and this ctenophora both have tentacles, which are body structures that help them catch food. However, sea anemone tentacles are short and can sting, while ctenophore tentacles are long for grabbing and cannot sting. What most likely explains why both species have tentacles and why the tentacles are different
Answer: Sea anemone and ctenophore both inherited tentacles from a shared ancestor population, but this population separated into different environments. In each environment, different types of tentacles evolved, which helped the populations survive.
Explanation:
most likely explains why both species have tentacles and why the tentacles are different is because sea anemone and ctenophore both inherited tentacles from a shared ancestor,
Then, this population separated into different environments and there was tye evolvement of different types of tentacles evolved, which therefore helped the populations survive.
