Answer:
Ethylene is a plant hormone that is released in the form of gas. It stimulates plant cells degradation making the fruits softer and sweeter. As a result, high ethylene levels may cause fruits over-ripening and abscission.
Explanation:
Elodea is a plant that lives in water. Like all plants, elodea can make its own food through
process called photosynthesis. Oxygen gas is also produced during photosynthesis.
Photosynthesis can only happen in the presence of light. To measure the rate of
photosynthesis, a piece of elodea can be placed in an inverted test tube filled with a
sodium bicarbonate solution. Oxygen gas produced by photosynthesis will collect at the
top of the test tube.
A student has designed an experiment using elodea plants. The experimental setup is
shown in Figure 1-4
Which of the setups would serve as the control of the experiment?
Bucket
Lamp
Flashlight High
Natural
Elodea
Sodium
bicarbonate
solution
The controlled variable is kept constant during the whole experiment in all the different study groups. In this experiment, Sodium bicarbonate solution is the controlled variable.
------------------------
During an experiment, the controlled variables are kept constant in the control groups and the experimental groups. Unlike the independent variable, the controlled variables do not influence the results. These variables do not affect the response of the dependent variable.
In this experiment,
The independent variable → presence/absence of light reaching the plant. The researcher regulates the amount of light by using different elements such as the bucket, lamp, flashlight, and natural light. The dependent variable → oxygen production through which the researcher measures the photosynthesis rate. The controlled variable → Sodium bicarbonate solution. It provides carbon dioxyde, and must be constant in the four scenarios to avoid an effect on the results.-----------------------
Related link: https://brainly.com/question/20511901?referrer=searchResults
For the numbered steps below, select the option that places them in the correct order. 1) The ribosome binds to the mRNA and uses tRNAs to translate mRNA into the corresponding amino acid polypeptide sequence. 2) The spliceosome removes introns. 3) The primary structure of the polypeptide chain undergoes hierarchical foldings to form the tertiary structure. 4) RNA polymerase binds to the promoter region of a gene and initiates transcription.
Answer:
first 4, then 2, then 1, and lastly 3
Explanation:
First, RNA polymerase binds to the promoter region of a gene on the DNA and initiates transcription. Transcription is the process by which we get mRNA (coding RNA) which is used as a template for protein synthesis. Then, in transcription, the resulting mRNA undergoes modification and maturation. This involves removal of introns, addition of 3'-poly-A tail and 5'-cap. Introns are sequences that do not code for protein and are hence removed. The structure that removes introns is the spliceosome. Thirdly, mature mRNA travels to the cytoplasm. Ribosome (composed of rRNA) binds to mRNA and tRNA to start the process of protein synthesis. The process of formation of protein is called translation. Lastly, the primary structure of protein may undergo folding to form a tertiary structure.
Which statements describe the synapse? Select all that apply.
It carries information through electrical impulses to the cell body.
It is part of the neuron.
It ensures that information travels in one direction only.
It carries information through chemical impulses to the cell body.
It is the gap between neurons.
It ensures that information travels in multiple directions.
Answer:
A
Synapse, also called neuronal junction, its carries of information through electric nerve impulses between two nerve cells (neuron) or between a neuron and a gland or muscle cell (effector).
Answer:
A
C
E
Explanation:
I just took the quiz on edge
Which of the following is true of living things that have prokaryotic cells when compared to living things that have eukaryotic cells?
They have many types of organelles.
They are types of plants.
O They are always larger than eukaryotic organisms.
They are always unicellular.
Answer:
the answer is the last one, they are always unicellular
Explanation:
The celiac ganglion ________. Group of answer choices is located near the base of the superior mesenteric artery arises from the greater splanchnic nerve projects postganglionic fibers that innervate the small intestine and the kidney and urinary bladder arises from the lesser splanchnic nerve arises from the lumbar splanchnic nerve
Answer:
The correct answer is ''arises from the greater splanchnic nerve''
Explanation:
The greater splanchnic nerve or great adrenal nerve, originates in the thoracic sympathetic chain from vertebral levels T5 to T9 (T10). It runs over the bodies of the thoracic vertebrae and as it descends it becomes more anterior. It enters the abdomen crossing the diaphragmatic pillar and ends at the celiac plexus. The upper part of each celiac ganglion continues with the greater splanchnic nerve. The collateral or prevertebral ganglia innervate the abdominal and pelvic organs and viscera. The celiac ganglion receives preganglionic fibers from T5 to T12 and innervates the stomach, liver, pancreas, gallbladder, small intestine, spleen, and kidneys.
Structure of DNA:
Question 6
What is the function of DNA?
Select one:
To encode instructions for traits.
To help the cell move.
To store energy for the cell.
To protect the cell.
Answer:
My friend, the answer is to encode instructions for traits.
3. Which of the following most accurately represents the various feeding relationships within an ecosystem?
O A. A biomass pyramid
O B. A food chain
O C. A feeding diagram
OD. A food web
Answer:
B- A food chain
Explanation:
This answer has been confirmed as correct and helpful
list and explain the advantages of 5 farming systems
Which molecules in your body do
not contain carbon atoms?
Genes, which are made of DNA
Proteins
Sugars
Water
I'm pretty sure its water
0.3 Product Ticket: CER
Question
Use the text to identify the sentences with evidence that matches the claim.
Claim 1 --> Tropical rainforests contain more biodiversity than all other biomes.
1) Biodiversity refers to the total number of different species of all kinds living in an area.
2) Tropical rainforests have many of the climate characteristics that organisms of different species need to grow, such as warm temperatures, plenty of rain, and many food sources.
3) There are large amounts of daily sunlight, which provides a great deal of energy to a variety of rainforest organisms.
4) Surprisingly, rain forest soil is very poor.
5) Due to the large amounts of rainfall, nutrients are leached out of the soil quickly.
6) Warm temperatures cause dead organisms to decay quickly, and the nutrients are then used by many different plants.
1, 2, 5
1, 2, 5
1, 3, 4
1, 3, 4
2, 3, 6
2, 3, 6
1, 4, 5
Answer:
44
Explanation:
44-7=55
Which of the following is the primary method of controlling citrus canker?
quarantine and destruction of infected plants
treatment with fungicides
genetic modification of plant stock
treatment with herbicides
Answer:
genetic modification of plant stock
An ecosystem experiences a loss of denitrifying prokaryotes. Will this loss affect the health of the ecosystem?
yes it will, it will ruin the food chain
If the results of an experiment are considered valid they will? A. Give the same nontestable results B. Give The same outcome when repeated C. Give different outcomes in different parts of the world D. give different results from repeated by different scientist
Answer:B
Explanation:
If it's valid, then it has substantial evidence to back up the results, which will be the same over and over again.
what is tissue A called?
Answer:
Tissue is a group of cells that have similar structure and that function together as a unit. A nonliving material, called the intercellular matrix, fills the spaces between the cells. ... There are four main tissue types in the body: epithelial, connective, muscle, and nervous
perfect 2 minute speech on deforstation
Answer:
A warm welcome to all present here. Today I am going to give a speech on deforestation. Deforestation is the process of cutting down the forest, without replanting them again. The causes for deforestation are to obtain wood and fuel or to use the land for farming, mining or construction. From the time of civilization till now, forest wood is very essential for humans in our day to day life.Explanation:
U can add more if u like it!Which would make for a weak claim?
• a blog cited as the source
• a large sample size
• clear variables and controls
• multiple trials
Answer:
A
Explanation:
Blogs can have a lot of misinformation
Frequently, a group of related species will each have a unique courtship ritual that must be performed correctly for both partners to be willing to mate. Such a ritual constitutes a ________ ________ reproductive barrier. Group of answer choices
Complete question:
Frequently, a group of related species will each have a unique courtship ritual that must be performed correctly for both partners to be willing to mate. Such a ritual constitutes a ________ ________ reproductive barrier.
Group of answer choices
A) behavioral . . . prezygotic
B) mechanical . . . postzygotic
C) temporal . . . prezygotic
D) gametic . . . postzygotic
Answer:
A) behavioral . . . prezygotic
Explanation:
The biological concept of species states that individuals of a species can not mate and reproduce with individuals of another species. But if they get to reproduce, the progeny will not be viable or fertile. There will not be any reproductive success.
There are different reproductive isolation mechanisms, which are barriers that inhibit or interrupt the genetic flow between different species.
Reproductive barriers are isolation mechanisms that prevent mating between two or more species. The prezygotic mechanism avoids fertilization between individuals of different species, while the postzygotic mechanism impedes the zygote to develop and reach the adult stage.
There are different types of reproductive barriers.
Pre-copulatory o pre-ziygotic:
Ecological or by habitat isolation; Seasonal or temporal; Sexual o ethologic; Mechanic; Gametes incompatibility.Postzygotic mechanisms or barriers include
Hybrid inviability, Hybrid sterility, Hybrid reduced viability or fertility, Cytoplasmic interactions.Behavioral isolation is also known as ethological isolation or sexual isolation. This is a prezygotic barrier that refers to the fact that even when many species occupy the same area, they are not sexually attracted to each other, and might be rejected because of behavioral factors, not getting to mate. This mechanism includes courtship patterns or mating rituals and specific chemical signals that allow recognition between individuals of the same species.
Which of the groups below has suffered the greatest percentage of species extinctions since 1600 (A) birds, (B) fishes, (C) mammals, (D) reptiles
(a) Birds is the correct ans
Explanation:
.......
Answer:
My guess would be mammals
Explanation:
Habitat destruction
Do populations of different species of birds that live in the same community compete? Explain.
Please help me
give a short introduction of carl von linnaues and rh whittakers regarding classification of living beings one major point
How are gymnosperms in category gnetophyta usually pollinated?
A. by wind
B. by hand
C. by insects
D. by water
Answer:
by insects
Explanation:
You observe a cell in a stained section of connective tissue. The cell has an indented nucleus and obvious cytoplasmic granules. Upon further testing, you determine that the granules contain histamine. This cell is most likely a(n) _____. Multiple choice question. mature neutrophil mast cell eosinophil B cell
which of the following are human activities that can negatively impact ecosystems.
Answer:
Hey not sure if there is something that is supposed to be viewable but some common human activities that can impact ecosystems are, deforestaion, pollution, littering, fracking, spilling oil into the oceans.
Explanation:
Answer:
You didn't put a photo but cutting down trees of putting chemicals into the water/earth can harm ecosystems
como se llama el primer cartílago de la tráquea
Answer:
cricoid cartilage
Explanation:
I think
Soil moisture influences both hydrological and agricultural processes and is part of the water and energy cycles through ________.
transpiration
evapotranspiration
evaporation
condensation
Answer:
Its either evapotranspiration or condensation
Explanation:
Hope it helps✌✌
Answer:
The correct answer is evapotranspiration.
Explanation:
Evapotranspiration is the process of water moving from Earth's surface to the atmosphere. The way water moves from the soil to atmosphere is through this process.
The organs in the human body perform specific functions for survival.
Organ A delivers blood to the body
Organ B delivers oxygen to the body
Organ C delivers messages to the body
Which of the following correctly identifies the organs that perform each function above?
Organ A is the heart, Organ B is the brain, and Organ C is the lungs
Organ A is the heart, Organ B is the lungs, and Organ C is the brain
Organ A is the lungs, Organ B is the brain, and Organ C is the heart
Organ A is the lungs, Organ B is the heart, and Organ C is the brain
Organ A is the heart
Organ B is the lungs
Organ C is the brain
Because heart only delivers blood to lungs and other body tissues, Lungs input oxygen into the blood and brain sends signals and messages to the body parts.
This is the answer. Hope it helps you
Answer:
B) Organ A is the heart, Organ B is the lungs, and Organ C is the brain
Explanation:
The graph shows the supply and consumption of forests when the
consumption rate and population growth rate are both low.
When does consumption begin to surpass supply?
Answer:
In about 625years
Explanation:
According to the graphical representation depicted in this question, it shows the supply and consumption of forests when the consumption rate and population growth rate are both low. The green line represents the total consumption while the red line represents the total supply.
Based on observation of the graph, the total consumption exceeds or surpasses the total supply at a little above 600 years. Approximately, this can be said to be in about 625years.
Answer:
In about 625 years
Explanation:
Consumption has definitely surpassed supply by 700 years, but it only begins to surpass it around the 625 year mark according to the graph
que es la iniciación de un cultivo
Answer:
cuando un cultivo inicia y se empieza a arar la tierra
Explanation:
ASAP What occurs after the homologous pairs are separated?
A. The sister chromatids separate.
B. Spindle fibers attach to the chromosomes.
C. Haploid cells are formed.
D. The nuclear envelope reforms.
Answer:
A
Explanation:
the sister chromatids separate
After the separation of homologous pairs, the sister chromatids are subsequently separated during meiosis II.
What is Homologous pair?Homologous pairs may be defined as those chromosomes which are very identical to one another and have the same size and shape.
In meiosis I, the separation of homologous pairs occurred. After this process, the sister chromatids are separated in meiosis II.
This separation leads to the production of a total of four products having the half number the chromosomes as compared to the original cell.
Therefore, the correct option for this question is A.
To learn more about Homologous pairs, refer to the link:
https://brainly.com/question/8253366
#SPJ5
In the analogy of a cell as a school,
lysosomes could be thought of as...
A. a janitor.
B. a teacher.
C. a music teacher.
Explanation:
In the analogy of a cell as a school, lysosomes could be thought of as a teacher.
Because teacher helps students by solving complex problems in simple way and as teacher lysosomes also helps us by breaking down the complex thing in the cell.
Hey there!
I believe your answer would be the janitor because his/her job is very similiar to the lysosomes' job, to get rid of all extra waste.
Hope this helps!
Have a great day!
