Answer:
Biomagnification (or bioaccumulation, or biological amplification) is the increase in the
concentration of persistent chemicals (such as pesticides) in ecosystems as they pass
up the levels of a food chain or food web.
100 000X more concentrated
Which disease can destroy red blood cells? Which disease infects T cells? Which disease produces a scaly, stinging, and itchy rash on the feet? giving brainliest to first right answer
Answer: 1 hemolytic anemia, 2 severe combined immunodeficiency, and 3 athletes foot
Explanation:
hemolytic is when your blood cells are being destroyed, severe combined immunodeficiency is several diseases together that infect your T-cells and athletes foot is when your feet have been confined in a small sweaty space. it causes a fungus to grow on your foot.
Answer:malaria aids then ath foot
Explanation:
Read each description below and determine to which stage of sleep each pertains. then click and drag each box into the appropriate category below.
Answer:
Explanation:
The descriptions provided in the question can each be placed into its corresponding Stage of Sleep, like so...
Stage 1
- Alpha waves dominate
- Feeling a drifting sensation
Stage 2
- Light sleep
- Sleep spindles occur
- Beginning of decline in respiration and blood pressure
Stage 3
- Typically begins about 20 minutes after stage 1
Stage 4
- Vital signs are at their lowest levels
- Delta waves dominate
PLZ HELP
Whoever can answer this best gets brainliest
Describe the effect succession has on genetic diversity
Answer:
Dispersal fundamentally influences spatial population dynamics but little is known about dispersal variation in landscapes where spatial heterogeneity is generated predominantly by disturbance and succession. We tested the hypothesis that habitat succession following fire inhibits dispersal, leading to declines over time in genetic diversity in the early successional gecko Nephrurus stellatus.
Explanation:
Answer:
There are five main elements to ecological succession: primary succession, secondary succession, pioneer and niche species, climax communities and sub-climax communities.
Primary Succession. ...
Secondary Succession. ...
Pioneer and Niche Species. ...
Climax Communities. ...
Sub-climax Communities. while Genetic diversity is the total number of genetic characteristics in the genetic makeup of a species. It is distinguished from genetic variability, which describes the tendency of genetic characteristics to vary. Genetic diversity serves as a way for populations to adapt to changing environments.
This disease is one of the main causes of death all over the world. It the primary cause of Coronary Artery Disease (CAD). This leads to further complications, like blood pressure and heart attack. Smoking, high fat diet, physical inactivity and stress can cause this disease. Which of these cardiovascular diseases is being described?
Answer:
Hypertension, obesity
Explanation:
A coronary artery disease, CAD, can be described as a disease that affect the arteries that carries blood from the heart to other parts of the body.
In this case, the disease is known to cause the blockage of the artery which is through the deposition of excess fats in the body.
Answer:
c. atherosclerosis
Select one of the organisms to go 'extinct' or become 'endangered' from the food web shown in the diagram. Tell how the change or loss of the organism will likely affect other organisms and the environment of the ecosystem.
Please help
Answer and Explanation:
The trophic web is the process of energy transference through a series of organisms, in which every organism feeds on the preceding one and becomes the food for the next one. The first link is an autotroph organism or producer, such as a vegetable, that can synthesize organic matter from inorganic matter. The next links are the consumers: herbivores are primary consumers and feed on producers. Carnivores are secondary consumers and feed on herbivores, and so on. The last links are the decomposers, microorganisms that act on dead animals degrading organic matter.
When one of the links disappears, it affects the superior links as they will not have their food source. The immediately anterior link will be beneficiated, as it will not be eaten by its predator. And finally, as this last link will overgrow, it will consume greater quantities of its food, causing a decrease in its anterior link.
In the exposed example, if salmon gets extinct, the krill population will increase because they won´t be eaten by salmon. As the krill population goes up, phytoplankton will decrease, because more krill will be eating these organisms.
As salmon disappears, the cephalopod population will be affected, because salmon was one of its food sources. As cephalopods are also eaten by the puffins, these last animals will also be affected. The decrease in puffins population means that the rats' population will decrease too, as rats feed on the puffin´s eggs of puffins. Finally, foxes will be affected too, because rat´s population went down.
This is only one path affected by the extinction of the salmon. But all the animals in the trophic chain will be affected.
Answer:
Phytoplanktons.
Explanation:
This is the primary producers in this ecosystem.Its extinction will affect photosynthesis, and therefore oxygen and carbon availability for the survival of other organisms in the ecosystem.
Besides this, it is the primary producers for zooplanktons, sandlance, and krills of the food web.Therefore, its extinction affects the survival and the population of these consumers.
Consequently, Salmon, puffin, and Cepahlopods which depended on the above three primary consumers fizzled out of the foodweb.
Eventually,rats,kitiwake,,gull auklet population disappear with consequent reduction in the numbers of Fox.
When a river flows over time, it may leave a deep groove with tall sides called a(n)? Possible answers in photo.
Answer:
Canyon.
Explanation:
Weathering, volcano, mountain, and erosion are not good answers.
Hope this helped :)
A trait can also be called a/an
observable traits are called phenotypes
In dogs, ... What are the possible Genotypes of the offspring and percentages? pick two
DD
Dd
dd
DDdd
0% 25% 50% 75% 100%
Answer:
Im really confused
Explanation:
What happens during prophase?
A- A new Nucleus forms around each copy of DNA
B-The chromatids are pulled apart
C-The Mitotic spindle forms
D-Spindle fibers attach to the chromatids
Answer:
During the prophase, Chromatin will form into chromosomes, and spindle fibers emerge from the centrosomes. The answer is C ^_^
Answer: C-The Mitotic spindle forms
Explanation:
I did this on a pex and got it correct :)
Question 18
homozygous : heterozygous :
a)heterozygous : Bb
b)dominant : recessive
c)probability : predicting chances
d)factor: gene
Answer:
c is the right one to meeeee
Answer:
C
Explanation:
c
Mention the functions of queen, drone and worker bees.
Answer:
Thousands of worker bees, all sterile females, assume responsibility for feeding, cleaning, nursing, and defending the group. Male drones live to mate with the queen, who is the only fertile female in the colony.
Explanation:
Which of the following accurately describes one way that individual goods differ from public goods
Answer:
People can be excluded from using individual goods if they don’t pay
Explanation:
Good luck :)
is dna an amino acid
Answer: No
Explanation:
DNA is a molecule that carries genetic materials in all living things. Amino acid on the other hand are the monomers that make up the proteins
How do wetlands reduce flooding and erosion? (Site 1)
Answer:
by absorbing water and then releasing it slowly.
Explanation:
Answer:
Wetlands function as natural sponges that trap and slowly release surface water, rain, snowmelt, groundwater and flood waters. Trees, root mats and other wetland vegetation also slow the speed of flood waters and distribute them more slowly over the floodplain. This combined water storage and braking action lowers flood heights and reduces erosion.
Why are wetlands referred to as "biological supermarkets"? pt.2 for edn2020
Wetlands within and downstream of urban areas are particularly valuable, counteracting the greatly increased rate and volume of surface- water runoff from pavement and buildings. The holding capacity of wetlands helps control floods and prevents water logging of crops. Preserving and restoring wetlands together with other water retention can often provide the level of flood control otherwise provided by expensive dredge operations and levees. The bottomland hardwood- riparian wetlands along the Mississippi River once stored at least 60 days of floodwater. Now they store only 12 days because most have been filled or drained.
Which term is correct for one arctic fox? A biome, B species, C ecosystem, or
D organism. This is for 10 points!
Answer
Its organism.
Explanation:
An arctic fox isn't an area it is a living thing so organism.
Answer:
Pretty sure it's a biome
6) Where is the star? Write the latitude and longitude
7) Where is the smiley face? Write the latitude and longitude
Answer: smiley face: 60° N and 60° W
star: 60° S and 30° E
Hope this helps!!! please rate 5 stars and vote as brainliest:) (^o^)(^o^)(^o^)(^o^)(^o^)(^o^)(^o^)(^o^)(^o^)
Which describes the role of oxygen in photosynthesis?
Answer:
Oxygen is a by-product during the photolysis of H2O to release electrons to be energised and passed down the electron transport chain and H+ ions.
Hybrid instruments that play sounds that are part sampled and part synthesized are known as:
Why is it necessary to convert carbohydrates into sugars? So they can be absorbed by the body Because sugars taste better than carbohydrates The body cannot get sugars from other sources Chemical energy is only found in sugars
Answer:
So that they can be absorbed by the body.
Explanation:
Carbohydrates are complex and sugars are simple form of carbohydrates. Since carbohydrates is complex and not easily absorbed it is converted to sugars which the body can absorbed easily during digestion and it is converted to energy to drive the cells. Examples of sugars are sucrose,glucose.
Which type of RNA is matched with its correct function? *
2 points
mRNA - makes a copy of the DNA and carries it to the Ribosome
rRNA - carries amino acids to the Ribosome to build a protein
tRNA - links the amino acids together with peptide bonds to create a protein
DNA: Stores energy
Answer:
tRNA -- links the amino acids together with peptide bonds to create a protein
Scientists conduct scientific investigations for which of the following reasons?
I. to discover new things about the natural world
II. to explain observed phenomena
III. to test the conclusions found in previous research
IV. to test the predictions of current theories
A. I and II only
B. III and IV only
C. I, II, III, and IV
D. III only
Answer:
C is the answer so it's correct
Read the information below and decide if the information provided will classify this item as a cell.
Has a cell membrane and nucleus.
Is moving around under the microscope lens.
After four hours of time, this cell divided into smaller, identical cells.
Select one:
True
False
Answer:
True
Explanation:
It sharea all of the characteristics of a cell, including the ability to divide and make more copies of itself.
Is energy and matter created or conserved
Answer:
created
Explanation:
you make engery by eating food
matter is made by making someing
Answer: Conserved
Explanation:
You cannot create nor destroy matter nor energy
Scientists have incorporated a barley gene into a type of rice and produced rice plants that have much lower methane emissions. It is most likely that the scientists incorporated the barley gene into the rice, producing a new variety, using the process of ___________.
Answer:
The correct answer is "genetic engineering".
Explanation:
The missing options of this question are:
(1) selective breeding
(2) meiosis, followed by recombination
(3) genetic engineering
(4) sexual reproduction, followed by mitosis
The correct answer is option (3) "genetic engineering".
Genetic engineering is a modern technology that uses a DNA recombinant approach to alter the genetic material of an organism. In this case the genetic material of rice was modified by incorporating a new gene that is originated from barley. The transference of a gene from an organism to another is most easily achieved by genetic engineering technology.
Why aren’t descriptive investigations relatable
Explanation:
Descriptive investigations are not repeatable because they are based only on observations made at a single point in time. The results may vary at a different time. In addition, descriptive investigations do not contain variables that may indicate cause-and-effect relationships.Aug 20, 2019
Draw a Punnett Square to show a cross between a chocolate lab that is homozygous dominant for the epistatic gene and a black lab that is heterozygous for the epistatic gene and homozygous for the color gene. Describe the genotype and phenotype of the possible offspring.
Answer: geno 50% 50%
Pheno: 50% chocolate 50% black
Explanation: the punnett square should have 2 capital L's across the top and down the side one capital L and one lower case L. The firs box should be LL the second box should be LL the third box should be Ll and the fourth should be Ll
How would you perform a streak test on a mineral that it's hardness is 8 1/2?
Answer:
you would test it on something harder (i think)
Explanation:
How will the orbitof a planet closer to the Sun be different from the orbit of a planet farther away from the Sun pleaassee helppp i will mark brainlest
Answer:
Any planet closer to the sun will orbit around the Sun quicker because it is closer.
Help! are Dietes grandiflora vascular plants?
Answer: Yes
Explanation: All flowering plants are vascular
Spider plants can reproduce both sexually and asexual......
Answer:
I feel like B is the correct answer
Explanation:
B is correct
Answer:
the answer is b the cells of the same