Answer:
GG and gg
Explanation:
Scientific study of the population cycles of the snowshoe hare and its predator, the lynx, has revealed that ________. Question 9 options: A) predation is the dominant factor affecting prey population cycling B) hares and lynx are so mutually dependent that each species cannot survive without the other C) the hare population is r-selected and the lynx population is K-selected D) both hare and lynx population sizes are affected mainly by abiotic factors
Answer:
A) predation is the dominant factor affecting prey population cycling
Explanation:
Predation is a type of interaction between species where one species called ‘predator’ uses another species, the ‘prey’, as a source of food. Within an ecosystem, the number of predators and prey may vary over time in cycles of time (in these cases, the population cycles of both species are closely linked). In consequence, predation is a density-dependent factor. In the case of the snowshoe hare and its predator, the lynx, when the number of predators is too high, the number of prey drastically decreases. Subsequently, this leads to the decrease of predators that leave their home range (they don’t have enough food to survive), thereby the snowshoe hare population increases again until the peak of the population cycle (carrying capacity), and so successively.
Please help me name each letter and match it to the definition.
Answer:
1. B. Medulla oblongata contains cardiac, respiratory, vasomotor and reflex centers.
2. A. Hypothalamus is the major regulator of ANS
3. D. Occipital lobe is the location of visual cortex.
4. F. Sensory areas are primary site responsible for perceiving cutaneous sensory sensations and proprioception.
5. E.Motor areas directs conscious motor movement
6. C. Cerebellum - coordinates movement by comparing intended movement with actual movement.
7. K. Corpus callosum allows communication between right & left cerebral hemispheres.
8. J. Frontal Lobe - Cognition, personality.
9. A. Hypothalamus - Contains hunger, thirst and thermoregulatory centers.
why is one mutation not enough to result in cancer
Answer:
A single mutation is unlikely to result in cancer. Cancer is usually caused by a series of mutations that accumulate throughout the course of a person's life. As a result, cancer is more common in older adults. They've seen more chances for mutations to accumulate.
Explanation:
For a particular trait, the allele F is dominant over the allele f. The Punnett square below shows the genetic cross of two parents, each with the genotype Ff.
Which box in this Punnett square would contain two dominant alleles?
Sex linked genes are located on the
a. autosomes
b. the X chromosme only
c. the Y chromosome only
d. both the X and Y chromosomes
Answer:
d
Explanation:
Answer:
D. Both X and Y chromosomes
Explanation:
Sex linked is a trait in which a gene is located on a sex chromosome. In humans, the term generally refers to traits that are influenced by genes on the X chromosome. This is because the X chromosome is large and contains many more genes than the smaller Y chromosome.
Certain prehistoric events led to the formation of oil. Which of the following was one of those events? A giant wind storms destroy forests. B glaciers melted at the north and south poles . C Life in the sea died and was buried under sediment. D heavy flooring soaked the earths crust.
Answer:
C oil is just dead animal remains
Explanation:
PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.
Answer: yo what grade is u in for these people to give you advanced word like this and also the letters are too small for me to see so I can't solve it right away.
Explanation:
Answer:
B
Explanation:
The rays of light change direction as they enter or leave the lens because of what change in the wave as it enters a different medium?
a) amplitude
b) frequency
c) speed
d) energy
Answer: speed
Explanation: speed of light is dirrerent in different mediums. Also wavelength changes but frequency remains same
Most minerals are______at room temperature
liquid
gas
solid
Answer:
The answer should be solid
Identify structure H (1 point)
מ ס ס ס וח
nou
F
-G
H
1
-K
L
Cell 2
Cell 1
Nucleus
O Cytoplasm
O Central Vaculole
Endoplasmic Reticulum
Answer:
(H) is the central vacuole!
Hope this helps ❤️
Events that take place in a biome are shown in the diagram below.
What information is represented in the diagram?
A
Respiration and photosynthesis are connected.
B
Transpiration is related to the nitrogen level in bacteria.
C
Predators and their prey are involved in many interactions.
D
Decomposers release a material that is utilized by other organisms.
Answer:
D - Decomposers release a material that is utilized by other organisms.
Explanation:
The cycle represented is the nitrogen cycle. In it bacteria of decay will break down or decompose plant and animal remains and wastes.
The information represented in the diagram is that decomposers release a material that is utilized by other organisms. So, the correct option is D.
What do you mean by Biome?A Biome may be defined as a very large area that is characterized by a particular type of vegetation.
The diagram represented here defines the nitrogen cycling in the atmosphere. Decomposers convert the dead and decaying organic matter into inorganic ones which are easily consumable for the plants.
Decomposers directly do not release any material but they convert the material into a specific form which is then utilized by other organisms.
Therefore, the correct option for this question is D.
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A prospective groom, who is not affected by cystic fibrosis (CF), has a sister with cystic fibrosis, an autosomal recessive disease. Their parents are also not affected. The brother plans to marry a woman who has no history of CF in her family. What is the probability that they will have a child with CF? They are both Caucasian and the overall frequency of CF in the Caucasian population is 1/2500 - that is, 1 affected child per 2500 (assume the population meets the Hardy-Weinberg assumptions).
Answer: In punnett square number 1, we see the cross between AA and aa, and the result is 100% Aa individuals, so there is 0% chances of haveing a child with CF. In punnett square number 2, we see the cross between Aa and aa and there is 50% chances of having a child with CF (aa genotype).
p = 0.98
q = 0.02
p² = 0.9604
q² = 0.0004
2pq = 0.0392.
Explanation:
Due to technical difficulties, the explanation has been attached as a word document.
What bacteria structures can make bacteria RESISTANT TO ANTIBIOTICS. CHOOSE ALL THAT APPLY.
Flagella
Cell wall
Outer membrane
Endospore
Plasmid
Capsule
Sally was exposed to hepatitis. Her doctor gave her an injection containing
antibodies to help her fight off the infection before her immune system had a chance
to kick in.
action
or
MAR is
tion
72411
active immunity - naturally acquired
active immunity - artificially acquired
passive immunity - naturally acquired
passive immunity - artificially acquired
Answer:
The correct answer is - passive immunity - artificially acquired.
Explanation:
Passive immunity is the immunity that involves giving or acquiring antibodies from other sources instead of developing them on one's own. This type of immunity can be natural and artificial. Mother breastfeed the babies, is the natural passive immunity example as milk also contain antibodies required for immunity of babies.
Artificial passive immunity is the immunity that comes from injecting the antibodies created in different animals or persons which called antiserum or vaccines such as snake antivenom.
During which cell division phase does the nuclear membrane disappear?
A) telophase
B) metaphase
C) anaphase
D) prophase
Answer:
B)Metaphase
Explanation:
During metaphase, the nuclear membrane disappears and the chromosomes become aligned half way between the centrioles.
Answer:
Prophase
Explanation:
D
A fireman feels a door and it is hot from the fire on the other side due to blank
Answer:
A fireman feels a door and it is hot from the fire on the other side due to conduction. Explanation: One side of the door is touching the other, and it transfers heat. 16. The cause of weather systems on earth is convection and radiation.
Explanation:
Correct me if I am wrong?
But hope it helps you!
in our body, what is the process of moving eliminating waste?
Answer:
Explanation:
Excretion is the process of removing wastes from the body. Organs of the excretory system include the kidneys, large intestine, skin, and lungs
The teacher noticed that Carrie seemed quite restless today and was having difficulty concentrating on any task that she started. She continuously squirmed, whether in her chair or sitting on the floor. On a number of occasions, the teacher also observed Carrie tugging at her underwear and scratching her bottom. She recalled that Carrie’s mother had mentioned something about getting her younger brother tested for pinworms and wondered if this might be what she was observing.
Required:
If Carrie does have pinworms, for what length of time should the other children be observed for similar problems?
Answer: Other children should be observed after the average of 6 weeks from the time of exposure to Carrie who is suspected to be infected by Pin worm.
Explanation:
Pin worm also called enterobiasis vermicularis is a parasitic nematode. The eggs are found in the specimen collected from the perianal skin and in the faeces of an infected individual. In its worldwide distribution, children are more commonly infected than adults. This is so because autoinfection by swallowing infective eggs is common in children. The eggs cause intense irritation and scratching of the infected area leads to the fingers becoming contaminated with eggs. This was observed by Carrie's teacher, as she usually scratch her bottom.
Other children should be observed after the average of 6 weeks from the time of exposure to infective eggs. This is because of the direct life cycle exhibited by the worm. Following ingestion of infective eggs, the larvae hatch in the intestine. Occasionally larvae hatch from the eggs on the perianal skin and migrate back into the intestine where they grow into mature worms. This type of infection is called RETROINFECTION. The larvae develop into fully mature worms in the large intestine. The female worms migrate to the rectum, pass out of the anus and lay their eggs on the perianal skin and perineum. The eggs are produced about 6 weeks after infection. They can remain viable on bedding, clothing, household objects, and in dust for several weeks.
Therefore from the life cycle of the worm, similar problem found in Carrie can be observed in other children after about six weeks of exposure to the infective eggs of the worm.
PLS HELP WILLING TO GIVE BRAINLIEST
Answer:
1. In primary succession, newly exposed or newly formed rock is colonized by living things for the first time. In secondary succession, an area previously occupied by living things is disturbed then recolonized following the disturbance.
2. Primary and secondary succession occur after both human and natural events that cause drastic change in the makeup of an area.
3. Volcanic eruptions, Retreat of glaciers, Flooding accompanied by severe soil erosion, Landslides, Nuclear explosions, Oil spills.
Whether there is a net flow of fluid into or out of a capillary at a given spot along its length depends on _____.whether or not the fluid contains carbon dioxide whether or not the fluid contains oxygen whether the fluid contains nutrients or wastesthe balance between blood pressure and osmotic pressurethe needs of the tissue
Answer: Depends on the balance between blood pressure and osmotic pressure.
Explanation:
The capillaries are part of the microcirculation that transports nutrients to the tissues and removes cell excreta. The walls of the capillaries are extremely thin, constructed of single - layer, highly permeable endothelial cells. Therefore, water, cell nutrients and cell excreta can all interchange quickly and easily between the tissues and the circulating blood.
The tissues of the body is made up of soo many capillaries which helps to deliver blood and it's contents to it. The hydrostatic pressure in the capillaries tends to force fluid and it's dissolved substances through the capillary pores into the interstitial spaces. Conversely, osmotic pressure caused by the plasma proteins( called COLLOID OSMOTIC PRESSURE) tends to cause fluid movement by osmosis from the interstitial spaces into the blood. This osmotic pressure excreted by the plasma proteins normally prevents significant loss of fluid volume from the blood into the interstitial spaces.
Therefore, a balance between hydrostatic pressure in the capillaries which is influenced by blood pressure and osmotic pressure in order for a net flow of fluid into or out of a capillary to occur.
why do trade winds and westerlies behave differently in the northern and southern hemisphere
Answer: coriolis effect
Explanation: because earth rotates as the air is moving, the winds in the northern hemisphere curve to the right and air in the southern hemisphere curves to the left.
What are the causes of soil compaction? (Site 1)
Answer:
Internal factors include particle-size distribution, organic matter content, mineralogy and water content of the soil. Externally applied forces are generally mechanically applied forces, the primary source of these being vehicular traffic
Explanation:
Identify the labeled structures
Answer:
what labeled structures?
Explanation:
write one paragraph explaining the steps of photosynthesis
Answer:
trading a lemonade stand for an orange juice stand!!! get a taste of ur own medicine HA
Explanation:
Look at the apparatus shown. It can be used to compare the amount of __________ given out by different fuels. What one word completes this sentence?
It can be used to compare the amount of energy given out by different fuels.
Thermometer is that apparatus which is used to measure the temperature of the liquid or solution. Temperature is a measure of the kinetic energy of the molecules that is present in a substance. When we record the temperature of something, we are collect information about how fast the molecules are moving in the liquid by heating the solution.
In this experiment, thermometer is dipped into the solution in order to record the amount of energy given out by burning of different fuels so we can conclude that the apparatus is used to measure the amount of energy given out by burning of different fuels.
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20. Process through which pollutants get increasingly more concentrated each step up the food chain.
bloaccumulation
risk assessment
toxicity
biomagnification
Answer:
bioaccumulation of chemicals is the problem concerning all living organisms. This is the result of dynamic equilibrium between the uptake and elimination. The extent to which bioaccumulation occurs determines the toxic effects which are manifested. In some cases, the mechanisms of protection from certain undesirable substances deposited in special sites, to prevent their participation in the metabolic reactions, have evolved. The knowledge on bioaccumulation enables to assess the risk related with the presence of various chemicals in the environment, food, and at workplace and to present quantitatively the ability to control the use and emissions of chemicals.
What is the answer to this question if anybody knows i’m really finding it confusing
Compare common environmental risks in indoor and outdoor environments.
pls answer in at least 2 sentences.
Explanation:
in indoor they could slip and in same in outdoor
Which statement below is an accurate claim that can be made based on the lizard table?
A The number of lizards always stays the same.
B The lizard population shifts from being mostly brown to being mostly red.
С The lizard population get more diverse as more generations go by.
D The lizard population shifts from being mostly brown to being most black.
!!
Answer: did you get the right answer ?
Explanation:
The statement is an accurate claim that can be made based on the lizard table, the lizard population shifts from being mostly brown to being mostly black. The correct option is D.
What is a population?The term “population” refers to all citizens who are either permanently residing in a country or who are just passing through. This indicator reveals how many people typically reside in a certain area.
Growth rates are the population changes that occur each year as a result of births, deaths, and net migration.
We can see in the table that the population of lizards or black lizards is increasing, and the brown lizard population is decreasing.
Therefore, the correct option is D. The lizard population shifts from being mostly brown to being mostly black.
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Indicate whether the given structure is located in the outer, middle, or inner ear. pharngotympanic tube helicotrema stapedius
Answer:
The pharngotympanic tube is in the middle ear.The helicotrema is in the inner ear.The stapedius is in the middle ear.Explanation:
The ear has three main parts, the outer part, the middle part, and the inner part. The outer part of the ear starts in the auricle, then it continues with the auditory canal, and it finishes with the eardrum. Then we have the middle ear that is separated from the outer one with the eardrum. In this section, it is the pharngotympanic tube, also known as the Eustachian tube. It is a tube that connects the inner ear with the pharynx to regulate internal pressure.
The inner ear has the bony labyrinth and the membranous labyrinth. In this part of the ear, the mechanical signals are transformed into electrical signals. The bony labyrinth has the cochlea, the vestibule, and the semicircular canals. The helicotrema is in the cochlea, and it connects the tympanic duct with the vestibular duct.
The stapedius is a muscle located in the middle ear. Its insertion is in the stapes, a small bone that moves with the vibrations that come from the eardrum to the malleus and the stapes. The stapedius' function is to protect our hearing by reducing the vibrations that enter this part of the ear.