Answer:
They are considered infectious or contagious :)
An ecological footprint A) is a means of determining increases in populations that lived in the past. B) is a means of understanding resource availability and usage. C) measures dispersion and adaptability. D) will estimate population movements.
Answer: An ecological footprint is a means of understanding resource availability and usage. The correct option is B.
Explanation:
The ecological footprint is a method which is used to measure the rate as which humans use natural resources in their environment and generate waste from them compared with how fast nature can absorb these wastes and generate the used resources again. The productive areas which are measured through this means are:
--> cropland,
--> grazing land,
--> fishing grounds,
--> built-up land,
--> forest area, and carbon demand on land.
The importance of ecological footprint to the environment should no the over emphasizes. When properly observed, different environmental pollution would be dealt with. Generally, there would be:
--> decreased desertification,
--> decreased global warming
--> availability of fresh unpolluted air and
--> decreased carbon emissions.
PLEASE HELP!!
For the presentation you will research and provide summaries for manned and unmanned explorations of your
choice. The presentation should be about twelve slides in length. Your presentation will include:
Title
Introduction - gives an overview of the presentation
Time line of missions - must include 3 manned and 3 unmanned missions
Description of each of the missions in the timeline (1 mission per slide)
(a) Name and date of mission
(b) Purpose of missions
(c) Results or findings from missions
Scientific advance - describe a scientific advancement that has led to an engineering improvement in
space exploration
Engineering advance - describe an engineering advance that has led to greater knowledge about the
solar system
Sources - list the websites and other sources you used
Remember to make a list (i.e., bullet points) on each slide. The slides should feature the highlights of the main
idea. The bullet points should be short phrases (at most, one sentence) that highlight key points.
.
.
ik
Answer:
HERE IS MINE HOPE IT CAN HELP, STAYED UP ALL NIGHT.
Explanation:
I CUT OUT MY NAME AND GRADE, CHANGE UP THE BACKGROUND OR SOMTHING IF YOUR GOING TO USE THIS.
HAPPY I COULD HELP M8, WISH ALL OF YALL USING THIS LUCK WITH YOUR GRADES. =]
Do different patterns of electrical signals have unique
meanings?
Answer:
Plants use electric fields to communicate with bees, scientists have learned.
Bumblebees are able to find and decipher weak electric signals emitted by flowers, according to the study.
Tests revealed that bees can distinguish between different floral fields, as if they were petal colours. The electric signals may also let the insects know if another bee has recently visited a flower.
Explanation:
How bees detect the fields is unknown, but the researchers suspect the electrostatic force might make their hair bristle. A similar hair-raising effect is seen when placing one's head close to an old-style TV screen.
Flowers were already known to use bright colours, patterns and enticing scents to attract pollinators.
What part of the body does cancer generally affect?
Answer: Cancer can spread anywhere through the body, but it's most likely to spread to lymph nodes, bones, the brain, the liver or the lungs.
Explanation:
Answer:
See below
Explanation:
Cancer can cause discomfort and loss of function in a specific section of the body by compressing surrounding nerves. Headaches and stroke-like symptoms and indications, such as weakness on one side of the body, are common symptoms and indicators of cancers that damage the brain.
Cancer may spread to any region of the body, although lymph nodes, bones, brain, liver, and lungs are the most commonly affected.
What are two examples of carbohydrates?
A. Fats and oils are carbohydrates.
B. Sugars and starches are carbohydrates.
Answer:
B. Sugars and Starches
Explanation:
Fats and oils are examples of fats
Answer:
Sugars and starches!
Explanation:
Sugars are a carb, and starches are a carb. Fats are the opposite, and oils are a type of fat as well.
How are GMO's made????
Answer:
GMOs are created by selecting and inserting a particular gene into a plant to produce a desired trait – such as resistance to pesticides. ... This type of selective or traditional breeding involves crossing thousands of genes, which is different than how gmos are made.
Explanation:
Answer:
GM is a technology that involves inserting DNA into the genome of an organism. To produce a GM plant, new DNA is transferred into plant cells. Usually, the cells are then grown in tissue culture where they develop into plants. The seeds produced by these plants will inherit the new DNA.
help me pls thank you
Explanation:
Interdependence. All organisms in an ecosystem depend upon each other. If the population of one organism rises or falls, then this can affect the rest of the ecosystem. If the foxes in the food chain above were killed, the population of rabbits would increase because they are no longer prey to the foxes.
Help me answer this guys ❤️
Answer:
evaporation
condensation
condensed liquid water
rain
Explanation:
What is the first 20 element
Answer:
1. H - Hydrogen
2. He - Helium
3. Li - Lithium
4. Be - Beryllium
5. B - Boron
6. C - Carbon
7. N - Nitrogen
8. O - Oxygen
9. F - Fluorine
10. Ne - Neon
11. Na - Sodium
12. Mg - Magnesium
13. Al - Aluminum
14. Si - Silicon
15. P - Phosphorus
16. S - Sulfur
17. Cl - Chlorine
18. Ar - Argon
19. K - Potassium
20. Ca - Calcium
‼️‼️‼️‼️
Will give BRAINLIEST!! Please help!!
Answer:
A AND D I THINK PLZ MARK BRAINLIEST
1. In some breeds of dogs, wire hair texture is dominant to smooth hair texture. Two parents with wire hair
produce an offspring with smooth hair. To express smooth hair, the offspring would need to have inherited
A. the same chromosomes from each parent.
B. an allele for smooth hair from each parent.
C. two of the same type of chromosomes from one of its parents.
D. an allele for wire hair from one parent and an allele for smooth hair from the other
A large proportion of a gene is made up of exons.
A. True
B. False
Answer:
A. True is maybe your answer
Explanation:
Answer:
A. True
Explanation:
On average, there are 8.8 exons and 7.8 introns per gene. About 80% of the exons on each chromosome are < 200 bp in length.
The picture shows a pika, a small mammal found in grassland ecosystems. The vast grasslands of the Tibetan plateau are home to the plateau pika. The numerous pikas are prey for many predators of the grasslands, which serve as a major watershed for much of the area. The watershed drains large quantities of groundwater during the rainy season or the monsoon season. Pikas have extensive burrows that help drain groundwater rapidly and are used as nesting sites by many bird species. However, many people advocate the eradication of the plateau pikas because they compete with livestock for grass.
1. The ecosystem will become unstable because predators will have fewer prey, the birds will have fewer nesting sites, and the area downriver will become vulnerable to flooding without the burrows to aerate the soil and provide drainage for monsoon rains.
2. The ecosystem will become more stable because the pika will be replaced by other species of small mammals that can fill the niche, bird species will adapt to nesting aboveground, and the soils will become compacted without the burrows.
3. The ecosystem will become unstable because the predators will migrate to nearby ecosystems, the birds will nest in nearby trees, and the soils will be aerated by other small mammals.
4. The ecosystem will become more stable because the pika will no longer be there to eat the grasses, the birds will migrate to other ecosystems during nesting season, and the soils will be able to absorb more of the monsoon rains without the pika burrows.
Answer:
Option A is correct
Explanation:
Given
Pika are eaten by many animals of the grass land. The burrows of Pika are helpful in draining the ground water rapidly and the burrows also acts as nesting site for many bird species. Pikas consume grass and hence they are competitors of livestock animals.
Removing Pikas from this ecosystem will destabilise the ecosystem as all the grass land predators will not get sufficient food. If Pika will not be there, then their burrows too will not exist and hence the excess ground water cannot be absorbed. Also the bird species will not be able to use burrows as nesting site.
Hence, option A is correct
how did world fromed
Answer:
by allah talah
Explanation:
Mention at least three species of HPV(Human papinovirus)
Answer:
Shope papilloma virus, mastomys natalensis papillomavirus, and psittacus erithacus timneh papillomavirus
Hemolysis of red blood cells occurs when the cells are placed in a(n) Group of answer choices hypotonic solution physiological saline solution hypertonic solution isotonic solution
Answer:
Hypotonic solution
Explanation:
Haemolysis of red blood cell refers to the destruction or breakdown of red blood cells. Red blood cell will undergo haemolysis if placed in an Hypotonic solution. Hypotonic solution is a solution that contain smaller amount or lower concentration of solutes like dissolved salt than other solution and also compared to the cystol. If a cell is placed in Hypertonic solution, red blood cell will swell because it will absorb solute and undergo hemolysis burst when placed in a hypotonic solution.
Which is the function of the lymphatic system?
A. To transport gases
B. To protect internal organs
C. To control movement
D. To transport fats
Transcribe this strand of DNA into a strand of mRNA
TAC-AAA-CCC-TTT-GGG-ATA-ACT
match the correct
⚠️please help me⚠️
Answer:
1: mRNA
2: rRNA
3: tRNA
Explanation:
this may help you remember
m =messenger
r =Ribosome
t= transfer
List the traits of each new species of rat.
The rat on island A:
1.
2.
The rat on island B:
1.
2.
The rat on island C:
1.
2.
The rat on island B:
1.
2.
Describe a challenge that would be encountered and a success of one of the new rats to another be environment (example: the rat living on island B now moves to island D)
Complete question:
Directions: Read the descriptions of the four islands presented in the lesson.
1. List two new traits that each new species of rat might demonstrate as it adapts to the conditions on each island.
2. Introduce one of the four new rat species to another island and describe one challenge it would encounter and one success as it adapts to its new environment
Island A:
The island is fairly flat with an occasional hill. The ground is made of soft dirt, and several species of shrubs grow toward the center of the island. There is no animal life on land, but the water around the island is teeming with fish. The island is surrounded by a coral reef, and the shore is sandy with no algae growing on it. Freshwater is available.
The rat on Island A:
1.
2.
Island B:
This island has a rocky shoreline. Numerous tide pools dot the island along the shore where the wave action is somewhat sheltered by rocky outcrops. The tide pools host barnacles, abalone, sea urchins, and crabs. Algae grow all around the island; however, the growth of algae is quite sparse in the tide pools where the various animals feed. The current is quite strong along the rocky outcrops where the algae grow best. Freshwater is available.
The rat on Island B:
1.
2.
Island C:
The island is somewhat barren. A few species of cactus thrive on the bare rocks, and a large, cactus eating tortoise inhabits the island. A species of very large birds’ nests on the island annually. The birds build their nests on the rocks and protect their eggs from the sun by standing over the nests with outspread wings. The nests are always found on the windy side of the island, which is somewhat cooled by offshore breezes.
The rat on Island C:
1.
2.
Island D:
This island is an extinct volcano. Vegetation on the island changes as the altitude increases. Grasses grow at the base of the volcano, but farther up the volcano’s slope, the grasses give way to low shrubs. Halfway up, the island becomes quite lush; tropical plants and trees dominate the landscape. At this altitude, the island experiences frequent rain showers. Two species of birds inhabit the island. One is a raptor that preys on the smaller birds. The other fishes the waters approximately one mile offshore. Both of the bird species nest in trees.
The rat on Island D:
1.
2.
Answer:
The rat on Island A:
1. Behavioural adaptation → Diurnal habits, as there are no predators that might attack them.
2. Morphological adaptation → Flat feet to move on the sand and Long strong nails to dig in the soft dirt and reach the roots of the shrubs which are a nutritious source of food.
The rat on Island B:
1. Morphological adaptation → Strong extremities to move along the rocky shoreline, to avoid sudden wave impacts, and handle to swim counter-current if they fall.
2. Morphological adaptation → Strong mandibles, well-developed masseteric and temporal muscles, and teeth adapted to feed on barnacles, abalone, sea urchins, and crabs.
The rat on Island C:
1. Stress-induced → Reduced transpiration rate due to the limited water availability.
2. Behavioural adaptation → Skills to compete for scars food with the tortoise avoiding its attack or presence.
The rat on Island D:
1. Morphological adaptation → Waterproof coat, due to the frequent rain showers.
2. Morphological adaptation → Vestigial nails, as they do not need them to get food.
Introduction of a Rat from island C to island D.
Challenge: They need to regulate water loss by increasing the transpiration rate. They need to grow fur adapted to excessive water.Success: They are good competitors with special skills.Explanation:
Due to technical problems, you will find the complete explanation in the attached files.
You fall backward and hit your head on a very sharp rock. The blow to your head causes you to lose consciousness and stop breathing. You most likely hit what part of your brain?
A) cerebellum
B) frontal lobe
C) brainstem
Classify the energy sources as renewable or nonrenewable
Answer:
A renewable energy source is that which is long lasting
Like solor, wind and hydraulic energy
While non renewable energy sources are those which are not long lasting
(Usually taking centuries )
Like fossil fuel
Explanation:
Answer:
Explanation:
Renewable Energy Source Non-Renewable Energy Source
energy obtained from water springs energy obtained from coal
inside the earth
energy obtained from burning plant energy obtained from natural g waste gas
⚠️10 points ⚠️
Help please
Answer:
The statements with "both" at the beginning go in similarities, and the rest go in differences
26. The current carbon dioxide level in the atmosphere is over
*
400 ppm (parts per million)
500 ppm
0 550 ppm
Answer:
the current carbon dioxide level in the atmosphere is 400ppm
When two long-winged flies were mated, the off spring included 77 with long wings and 24 with short wings. Is the short-winged condition dominant or recessive What are the genotypes of the parents
Answer:
the short-winged condition is recessive Both parents are heterozygous, LlExplanation:
Due to technical problems, you will find the complete explanation in the attached files.
11. Stop codons are found in
and are responsible for?
Answer:
The presence of a stop codon—UAA, UAG or UGA—in the A site of the ribosome is generally a signal to terminate protein synthesis. This process constitutes the last essential stage of translation, as it ensures the formation of full-sized proteins
if the DNA sequence was ATTCGCTA what would the DNA paired sequence be
Which of the following is NOT a characteristic of plants?
A. Regulate the water cycle
B. Are used in medicine
C. Provide food, air and habitat
D. Organisms which feed on dead organisms or waste from living organisms
Answer: B B B B B B
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
Answer:
A. Regulate the water cycle
Explanation:
Animal cells have centrioles, centrosomes, and lysosomes, whereas plant cells do not. In addition, plant cells have a cell wall, a large central vacuole, chloroplasts, and other specialized plastids, whereas animal cells do not.
PLEASE HELP LOL this is from "Pearson Biology Chapter 2 lesson 4"
ill give brainiest for the best onee
Answer:
1. freshwater
2. estuary
3. intertidal
4. marine
5. deep
6. true
7. false (3 percent)
8. false (larger and deeper)
9. false (surface)
10. true
Explanation:
Natural selection results in change over time by acting on traits that are ___
Answer:
passed on, inherited, passed on to offspring, most adapted to the environment or have the best adaptive traits or higher genetic fitness
Explanation:
Natural selection results in change over time by acting on traits that are heritable and advantageous.
What is Natural selection?Natural selection is the differential survival and reproduction of individuals due to the differences in phenotype of the organism. Natural selection is a key mechanism of evolution, the change in the heritable traits characteristic of a population takes place over many generations.
Natural selection is the central mechanisms of evolutionary change in a species and is the process responsible for the evolution of adaptive features in an organism. This selection helps in storing the characteristics which are advantageous and are heritable for the species.
Learn more about Natural selection here:
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