VERY VERY EASY QUESTION. WILL MARK BRAINLIEST
A marine biologist explains that salmon populations change over time because of differential reproduction. What is "differential reproduction"?
Some organisms in a population lay eggs, while others produce sperm.
Some organisms in a population produce more male offspring than others.
Some organisms in a population produce more offspring than others.
Some organisms in a population reproduce in rivers, while others stay in the ocean.
Differential reproduction means that some organisms in a population produce more offspring than others.
Differential reproduction refers to the difference between individuals in a population and how many offspring they are able to leave.The best adapted organisms to a given environment will leave more offspring than those who are not well adapted. Differential reproduction depends on the natural
Answer:
D
Explanation:
Short-spined sea urchin fossils were found directly above long-spined sea urchin fossils in a layer of rock. What do the differences between the two sets of sea urchin fossils suggest about them?
The longer spines developed as the shorter-spined sea urchins grew older.
The longer-spined sea urchins existed before the shorter-spined sea urchins.
The shorter-spined sea urchins stretched their spines to ward off predators.
The shorter spines did not protect the sea urchins well enough and they died off.
Answer:
The longer-spined sea urchins existed before the shorter-spined sea urchins
Explanation:
The lower buried is what died off first and the recently buried is the newly evolved version.
Answer: it shall be opion b
Explanation:
Project: Analyzing Genetic Variation WRITE YOUR FOUR PARAGRAPH RESEARCH PAPER in the space provided below. Restate your claim. Describe the first evidence that supports your claim—in a paragraph and using your own words. Describe the second evidence that supports your claim—in a paragraph and using your own words. Provide a summary paragraph that restates your claim, and explains how your research defends your claim (a conclusion).
Answer:
1st
Explanation:
Describe wavelength, amplitude, and frequency in relationship to vision and hearing
Explanation:
Visual and auditory stimuli both occur in the form of waves. Although the two stimuli are very different in terms of composition, wave forms share similar characteristics that are especially important to our visual and auditory perceptions. Waveforms of different types surround us at all times, however we only have receptors which are sensitive to specific types of wavelengths. In this section, we describe the physical properties of the waves as well as the perceptual experiences associated with them.AMPLITUDE AND WAVELENGTH
Two physical characteristics of a wave are amplitude and wavelength (figure below). The amplitude of a wave is the height of a wave as measured from the highest point on the wave (peak or crest) to the lowest point on the wave (trough). Wavelength refers to the length of a wave from one peak to the next.
The amplitude or height of a wave is measured from the peak to the trough. The wavelength is measured from peak to peak.
Wavelength is directly related to the frequency of a given wave form. Frequency refers to the number of waves that pass a given point in a given time period and is often expressed in terms of hertz (Hz), or cycles per second. Longer wavelengths will have lower frequencies, and shorter wavelengths will have higher frequencies
Which of the following statements describes ways cellulose and starch are similar to and different from each other?
How are the alleles for sex-linked traits inherited
Explain why the root vore is used in the appropriate vocabulary terms
Answer:
I'm not sure what a root vote is sorry
Explanation:
Easy Question. Will mark brainliest.
Which of the following strategies are used in biotechnology to solve a problem?
I. Genetic engineering
II. Biomimicry
III. Biochemical engineering
I only
II only
I and II only
I, II, and III
Answer:1 only
Explanation:genetically modified organisms are used
What does a restriction enzyme create that allows a gene to bond to a plasmid?
8. All the abiotic and biotic factors that interact with each other is called
a. A habitat
b. An ecosystem
C.A Niche
d. Commensalism
Answer:a niche
Explanation:
which of the following segments of the growth curve would starvation proteins be at their highest detectable levels?
How would Earth most likely change if the amount of greenhouse gasses continued to increase?
A Glacier size would increase.
B Air pollution would decrease.
C Global temperatures would increase.
D) Ocean levels would decrease.
Answer:
C. Global temperatures would increase
Explanation:
greenhouse gases affect temperature, so, it would be C.
Have a great day
Live Fund are selling their holdings at $5,000 per
share. How much would Live Fund receive if they sold
half their holdings in Marks Brothers?
$2.48 million
$4.68 million
$6.8 million
O $42.6 million
$46.8 million
Answer:
$46,8 million like it. please
In order for a dead organisms remains to become fossilized certain conditions must be met. summarize three of these conditions.
The vast majority of deceased organisms vanish without a trace, so fossilization is a rare process.
What are the conditions that favor fossilization:Hardbody parts (bones, teeth, shells) will fossilize; soft body parts will not but may leave traces (e.g. imprints)Remains preserved (protection against scavenging, erosion, and environmental damage)There is a lot of pressure to get the remains mineralized (i.e. turn hard body parts into fossilized rocks)Anoxic (low oxygen) conditions are used to protect against oxygen damage and to prevent saprotroph decomposition.Thus, we can conclude that hardbody parts remain preserved, and high pressure and anoxic conditions are required during fossilized.
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Many farmers and gardeners compost their plant and animal waste. The living material naturally decays in compost bins, forming a dirt-like substance that’s rich in nutrients. The next season, farmers use this substance as a natural fertilizer for their crops. A biology student has grown tomato plants for several years. Until now, he used an artificial fertilizer formulated for tomato plants. This fertilizer caused his plants to grow faster and taller than they grew in unfertilized soil. The student wants to know whether using natural compost will cause his tomato plants to grow faster and taller than his artificial fertilizer. How does the design of your experiment control for outside factors that may affect the results?
Answer:
yes the fertile soil will grow faster and taller
Explanation:
the fertile soil will grow faster because it has what the plant needs
are mutations good or bad
Answer: Mutations can be good or bad.
Explanation:
Which angles are right?
Answer:
KLJ & EFH
Explanation:
Right angles have a 90° angle
Answer:
A, B, C
Explanation:
A right angle is an angle that is 90 degrees.
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What type of molecule is represented by the model below?
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O Carbohydrate
Steroid
O Fat
Nucleic acid
Answer:
Carboydrate
Explanation:
I'm confused with what's going on in the words, but I see a lot of C, H, O, and more. So I'm guessing it's talking about carbohydrates. Don't get mad though it's just the words didn't make sense to me.
Having a hard time with this question.
Why are saprotrophs so important to a marine food web?
Answer:
They break down dead organisms and recycle nutrients. They directly help to maintain the population sizes of different predators. They primarily eliminate toxins from the water that can harm phytoplankton.
Explanation:
Hope it helps I found it on brainly
Answer:
They break down dead organisms and recycle nutrients.
Explanation:
Saprophytes are the living organisms that feed upon dead organisms such as plants, animals, and their decaying products. They contribute to the food web because they help in clearing up the biological waste from the environment and make the resources after degradation available to the plants as soil nutrients. Therefore, helps in nutrient recycling in an ecosystem.
6. A relationship between 2 species, 1 species benefits and the host is harmed.
a. symbiosis
b. mutualism
commensalism
d parasitism
Answer:
symbiosis
Explanation:
Symbiosis is a close relationship between two species in which at least one species benefits.Parasitism is an example of symbiotic relationship in which one species (the parasite) benefits while the other species (the host) is harmed.
Answer:
your answer is d) paratism
Explanation:
The esophagus, a tube that carries food to the stomach, is constantly being scraped as food travels through it. Why does the esophagus not deteriorate through a person’s lifetime? Cells can anabolize the food prior to entering the esophagus. Cells are constantly dividing and replacing old or damaged cells. Cells promote a fluid to build up along the esophagus to reduce friction. Cells build a type of protein called enzymes that act as an armor.
Cells are constantly dividing and replacing old or damaged cells.
Which of the following is true of red blood cells? A. They live for only 120 days. B. They have multiple Nuclei. C. They live for only about 20 days. D. Once created in bone marrow, they circulate for our lifetime.
A. They live for only 120 days is correct. They are created in the bone marrow and destroyed in the spleen "red blood cells graveyard"
B. They have multiple Nuclei. Red blood cells don't have a nucleus but some can present structures called Jolly's bodies that are small pieces of the nucleus that they lost in the differentiation process
C. They only live for only about 20 days. No, red blood cells live for about 120 days
D. Once created in bone marrow, they circulate for our lifetime. Again, they have a limited lifetime
three students are discussing scientific inferences erica says that inferences can change with a single experiment selvin says science is fixed and rigid miguel says the inference can change over time based on new data and findings which student has the most accurate explanation
Easy Question. Will mark brainliest.
Considering the impacts and benefits of bioprospecting, which of the following describes the most likely impact?
It could be harmful to the ecosystem.
It may make additional types of medical treatments available.
It is more expensive than creating synthetic compounds.
It provides additional variety of known chemical compounds.
Answer:
It could be harmful to the ecosystem.
Explanation:
like genetic modification,it might spoil the balance of ecosystem or create a harmful substance that we can't deal with.that's my insight.
A wet-mount slide of red onion cells is studied using a compound light microscope.
*PLEASE ANSWER TY* Which gas makes up the majority of air pollutants? a.) sulfuric acid b.) sodium hydroxide c.) carbon monoxide
Answer:
carbon monoxide
Explanation:
sulfuric acid is litterally acid
sodium hydroxide..... common now
Carbon monoxide (c.) is the gas that makes up the majority of air pollutants.
What is carbon mono oxide?
Carbon monoxide (CO) is a colorless, odorless, and tasteless gas that is produced by the incomplete combustion of carbon-containing fuels, such as gasoline, natural gas, coal, and wood. It is a highly toxic gas and can be harmful to both humans and animals.
When inhaled, carbon monoxide enters the bloodstream and binds to hemoglobin, the molecule responsible for carrying oxygen to body tissues. This binding affinity is much stronger than that of oxygen, resulting in reduced oxygen delivery to organs and tissues. As a result, exposure to high levels of carbon monoxide can lead to symptoms such as headache, dizziness, nausea, confusion, and in severe cases, loss of consciousness and death.
Carbon monoxide is a significant air pollutant, often found in areas with heavy traffic, industrial emissions, and improper ventilation. It is important to have proper ventilation systems and to use carbon monoxide detectors to minimize the risk of exposure to this dangerous gas.
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Hyponatremia is a condition in which the sodium in the blood is too low. Uncontrolled spasms, which are sudden, involuntary contractions of muscles, are among the symptoms of hyponatremia. Why do they occur?
A.
Sodium is needed to generate an action potential.
B.
Sodium makes up most of the myelin sheath.
C.
Sodium is the signaling molecule that transmits impulses across a synapse.
D.
Sodium controls voluntary movement, and potassium controls involuntary movement.
Reset Next
Answer:
Option A. Sodium is needed to generate an action potential.
Explanation:
Action potentials are generated by the special types of the voltage-gated channels which are embedded in the plasma membrane of the cell.
These channels are shut when the membrane potential is near zero and the voltage-gated channels open only when the membrane potential is more than the threshold voltage.
When the channels are open then they allow the flow of sodium ions which ultimately changes the electrochemical gradient which rises the membrane potential. This rise in membrane potential generates the action potential.
A
Part D
Explain why your model improves upon the student's original model. How would your model help someone who was
learning about photosynthesis for the first time?
B
I U
x
X
Font Sizes
A- A.
Answer:
See below
Explanation:
This new model perhaps better explains the elements required in order for photosynthesis to take place. Sunlight, water, carbon dioxide are essential for the plant so it can produce it own food. Someone who is not previously familiar with the process of photosynthesis needs to start from these basics and then further build on this knowledge.
Answer:
This model shows all the major molecules involved in the Calvin cycle and how they change at each stage of the process. This added detail would clarify that the Calvin cycle is a series of complex steps. The student’s original model didn’t show this breakdown at all, and it shows only the final products. This model also shows the number of each molecule created, which the original model doesn’t do.
Explanation:
PLATO Edmentum
All of the following are effector responses that increase body temperature
Answer:A : vasodilation of dermal blood vessels
Explanation: