Which of the following is an example of abiotic factors affecting an ecosystem?
ANSWERThe correct answer is letter C. I, II, and IV only.
III. Nitrogen-fixing bacteria is an example of a living being (biotic) , so it isn't an abiotic factor that affects the ecosystem. While quantity, quality of water, amount of light (sunlight), and quantity of mineral in the soil are all examples of abiotic factors (non-living elements) that make difference in the environment.
A species that produces two kinds of gametes, with unequal distribution of cytoplasmic organelles, is said to be a ______ species.
Answer:
heterogamous
Explanation:
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Because of their ability to rapidly divide during brain injury, which type of neuroglial cell would be more likely to form a brain tumor?.
Answer:
Astrocyte
Explanation:
Phenylketonuria is a(n) _______ disorder, meaning that it is passed from generation to generation via DNA.
Answer:
inherited
Explanation:
Phenylketonuria is a(n) inherited disorder, meaning that it is passed from generation to generation via DNA.
_____ describes the life cycle of a star. Nuclear fusion The big bang Nebular clouds Stellar evolution
Answer:
Stellar Evolution
Explanation:
The life cycle of a star is considered/named, stellar evolution.
Which term best describes all of the different species of insects living in a rainforest? a number of populations a niche a number of communities a habitat
Answer:
The correct answer is a number of communities.
Explanation:
Population can be defined as a group of all members of a particular species living in a specific geographic region whereas a community is the population or group of all species that are inhabited in the particular geographic region.
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Answer:
communities
Explanation:
A community is made up of several populations of different species interacting in an area. When you also include the nonliving components found in that area, like water and sunlight, you get an ecosystem.
The Golgi body interacts the most with
which of these?
♡
A. nucleus
B. free ribosomes
C. nucleolus
D. endoplasmic reticulum
Answer:
D. endoplasmic reticulum
Explanation:
Many people report having a phobia for snakes even though they have never been exposed to a snake. this fear is an example of __________. a. helplessness to an unfamiliar stimuli b. misinterpretation of stimuli c. classical conditioning d. preparedness please select the best answer from the choices provided a b c d
Many people report having a phobia of snakes even though they have never been exposed to a snake. This fear is an example of preparedness.
What do you mean by Phobia?Phobia may be defined as an act of overwhelming fear of an object, place, situation, feeling, or animal.
Without seeing a snake, people picturise its image in their mind as well as familiar with its actions of biting and hissing. This reference leads to an act of phobia in people.
Therefore, many people report having a phobia of snakes even though they have never been exposed to a snake. This fear is an example of preparedness.
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Answer:
The answer is preparedness. i just got a 100.
Explanation:
___ carry motor commands from the brain along the spinal cord.
Answer:
i guess "motor neuron" is the answer
Explanation:
She counts 8 worms and 15 pill bugs She sees a little bit of grass the worm makes up a
what is the rest of the question?
pThe probability of having an offspring with both the dominant phenotypes for both genes is equal to the product of the individual probabilities. This means, the probability of having a dominant phenotype for both traits would be
The product probability rule states P(A∩B) = P(A) x P(B). In the exposed example, the probability of having a dominant phenotype is 9/16.
What is the product probability rule?The product probability rule allows us to calculate the probability of occurrence of event A and event B at the same time.
It is about a joint probability of two or more events that might happen simultaneously, not excluding each other.
This rule is based on the dependence or independence of the events. If two events A and B are independent of each other, the occurrence of one of them does not affect the occurrence of the other one.
For independent events, the rule establishes that, given two different events A and B, the probability of occurrence of both together is
P(A∩B) = P(A) x P(B)
The probability of inheriting one of the alleles from each parent is 0.5 (beacause each parent has two alleles).
According to this, the probability of having a dominant phenotype for both traits depends on the paretal genotypes.
For instance, let us analyze the cross between two dihybrid individuals AaBb x AaBb.
Assuming the involved genes code for different traits and both are independent genes, for easier calculations, we can perform crosses that involve each of the genes separately -events-, and then multiply de results according to the genotype and phenotype we are interested in (A-B-)
Gene A
Parentals) Aa x Aa
Gametes) A a A a
Punnett square) A(1/2) a(1/2)
A(1/2) AA(1/4) Aa(1/4)
a(1/2) Aa(1/4) aa(1/4)
F1) Genotype
1/4 AA ⇒ 1/2A x 1/2A
2/4 = 1/2 Aa ⇒ (1/2A x 1/2a) + (1/2A x 1/2a)
1/4 aa ⇒ 1/2a x 1/2a
Phenotype
3/4 A- ⇒ 1/4AA + 2/4Aa
1/2 aa
Gene B
Parentals) Bb x Bb
Gametes) B b B b
Punnett square) B b
B BB Bb
b Bb bb
F1 Genotype
1/4 BB ⇒ 1/2B x 1/2B
2/4 = 1/2 Bb ⇒ (1/2B x 1/2b) + (1/2B x 1/2b)
1/4 bb ⇒ 1/2b x 1/2b
Phenotype
3/4 B- ⇒ 1/4 BB + 2/4 Bb
1/2 bb
The probability of having a dominant genotype and phenotype for both traits is,
Genotpe AABB ⇒ 1/4 AA x 1/4 BB = 1/16 AABBPhenotype A-B- ⇒ 3/4 A- x 3/4 B- = 9/16 A-B-You can learn more about the product probability rule in crosses at
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What is the active element in most photovoltaic cells.
Answer:
Silicon. Silicon is, by far, the most common semiconductor material used in solar cells, representing approximately 95% of the modules sold today
Explanation:
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What are three ways you can reduce your risk of contracting a bacterial disease?.
Answer:
This is a very broad question, here are some thoughts to guide you:
Proper personal hygeine.
Avoiding exposure to bacteria.
Proper care of open wounds.
Avoiding damage to skin and mucosal membranes.
Which organisms are described correctly by the gases produced due to cellular processes?
A bird and a butterfly only produce carbon dioxide, while a deer and grass only produce oxygen.
A bird and a butterfly only produce carbon dioxide, while a deer and grass only produce oxygen.
A deer and a tree produce both oxygen and carbon dioxide, while a bird and a butterfly only produce carbon dioxide.
A deer and a tree produce both oxygen and carbon dioxide, while a bird and a butterfly only produce carbon dioxide.
A tree and grass produce both oxygen and carbon dioxide, while a bird, a butterfly, and a deer only produce carbon dioxide.
A tree and grass produce both oxygen and carbon dioxide, while a bird, a butterfly, and a deer only produce carbon dioxide.
A tree and grass only produce oxygen, while a bird, a deer, and butterfly only produce carbon dioxide.
Answer:
A tree and grass only produce oxygen, while a bird, a deer, and butterfly only produce carbon dioxide.
Explanation:
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Complete this sentence: Primary consumers receive about
of the energy available in biomass from producers.
100 percent
50 percent
35 percent
10 percent
Answer:
10 percent
Explanation:
Answer:
10 percent
Explanation:
Identify the cranial nerves associated with gastrointestinal tract motor output. a. facial
b. vagus
c. glossopharyngeal
d. hypoglossal
e. olfactory
f. trochlear
The cranial nerves which are associated with gastrointestinal tract motor output is vagas.
What nerves associated with gastrointestinal tract motor?The parasympathetic system exerts its effects primarily through the vagus and pelvic nerves that comprise of lower large intestine, rectum, and anus. The vagus nerve regulates tone and volume by activating the enteric motor neurons.
So we can conclude that the cranial nerves which are associated with gastrointestinal tract motor output is vagas.
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What are the three main functions of the cardiovascular system?.
The cardiovascular system has three main functions:
transport of oxygen, carbon dioxide and nutrients.
clotting of open wounds.
regulation of body temperature.
3. The means by which a disease is contracted or
"spreads” is referred to as:
a.
transmission
b. transmutation
C. viral
d. spontaneous generation
Answer:
c viral
Explanation:
use the corona pandemic as an example, it spread quickly and became viral
IMPORTANT!!!!!!
Without land regulations to protect rainforests, land continues to be destroyed using slash and burn methods. Which global need is increasing the rates of rainforest deforestation?
Local farmers need for new land
Global demand for natural gas
Country's demand for precious metals
Demand for palm oil from other countries
Answer: Local farmers need for new land
Explanation Forests are cut down to clear land for agriculture, livestock grazing, and settlement; for timber; to produce charcoal; and to establish tree plantations.
Deforestation occurs across all forest types, but is concentrated in the tropics and boreal regions. Temperate regions are experiencing a net increase in forest cover due to natural regeneration.
While deforestation produces food, fiber, and fuel, it can also pose risks to climate, biodiversity, and food security by degrading the ecosystem services normally afforded by healthy and productive forests.
The global need that is increasing the rates of rainforest deforestation is demand for natural gas. The correct option is B.
What is natural gas?Natural gas is a naturally occurring mixture of gaseous hydrocarbons, primarily methane, with minor amounts of other higher alkanes.
Low levels of trace gases such as carbon dioxide, nitrogen, hydrogen sulfide, and helium are also commonly present.
Natural gas is formed naturally over hundreds of millions of years. Layers of decomposing plants and animals are subjected to intense heat from the Earth and pressure from rocks to form it.
Land continues to be destroyed using slash and burn methods in the absence of land regulations to protect rainforests. The global demand for natural gas is driving up rates of rainforest deforestation.
Thus, the correct option is B.
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Which of the following is not a form of energy
mechanical
heat
matter
solar
Answer:matter
Explanation:foundonweegy
If there are 32 sister chromatids in a normal somatic cell, how many chromosomes are there?.
If there are 32 sister chromatids in a normal somatic cell, the number of chromosomes there are 16 chromosomes. Each chromosome contain of 2 sister chromatids.
How many chromosomes are in a sister chromatid?Each daughter cell will have half of the initial 46 chromosomes, or 23 chromosomes. Each chromosome contain of 2 sister chromatids.
The daughter cells drive in to the third and final stage of meiosis: meiosis II. At the end of meiosis I there are two haploid cells.
Thus, the number of chromosomes there are 16 chromosomes, as Each chromosome consists of 2 sister chromatids.
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The turn signal belongs to which subsystem of an automobile?(1 point)
The turn signal belongs to the car's signaling subsystem.
What is signaling subsystem?The signaling system is basically composed of lights that show the location of the vehicle, as well as the maneuvers that are in progress or to be performed shortly. In other words: its importance for the safe driving of the vehicle is indisputable.
Whit this information, we can conclude that the turn signal belongs to the car's signaling subsystem.
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Can you identify the animal phylum to which each example or characteristic belongs?.
Answer:sponge is one answer.
Explanation:
Your question is incomplete. Please read below to find the missing content.
The answers are :
Sponges - no body symmetry, central cavityCnidarians - jelly (jellyfish), radial symmetry, gastrovascular cavityMollusks - giant clamEchinoderms - sea star (starfish), water vascular system, internal skeleton, and spiny body surfaceFlatworms - tapewormArthropods - the fruit fly, body segments are the hard exoskeletonChordates - homo sapiens, contain tail, nerve cord, notochord, and pharyngeal slits.What two features define animal phyla?Animal phyla are categorized in steps with certain criteria, which include the form of coelom, symmetry, body plan, and presence of segmentation. Sponges (Porifera) have a primitive mobile degree of company and lack tissues and symmetry.
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A particular gene has two alleles, a dominant allele A and a recessive allele a. The frequency of allele A is 0.55. If the population is in Hardy-Weinberg equilibrium with respect to the gene, then what is the expected frequency of genotype Aa
If p = frequency of A and q = frequency of a, then assuming H-W equilibrium we have
p + q = 1 ⇒ q = 1 - p = 1 - 0.55 = 0.45
Then the expected frequency of the heterozygous genotype Aa is 2pq = 2 • 0.55 • 0.45 = 0.495.
Are these two substances the same ? Explain why they are or are not .
Answer:
They are the not the same exact thing because they are both pawter both marked as yellow but there not the same yellow and marks they are Conductivity but in order of it to be the same it has to have everything the same and the melting temperatures are different and different Density
4. According to Newton's laws what might happen to the Earth if its orbit moved farther away from the Sun? The Sun's gravitational pull on the Earth would increase b. The Earth's gravitational pull on the Moon would increase b The Sun's gravitational pull on the Earth would stay the same d. The Sun's gravitational pull on the Earth would decrease C.
Answer:
The Sun's gravitational pull on the Earth would decrease.
Explanation:
According to Newton's laws, if its orbit moved farther away from the Sun, the Sun's gravitational pull on the Earth would decrease. The correct option is d.
What is gravitational force?Gravitational force is the force that attracts everything towards it. The third law of Newton, or the law of action-reaction, states that:
As soon as object A applies a force (referred to as an action) to item B, the opposite force is then applied to the first object (referred to as a reaction).
In other words, when two things exert a force on one another, the two forces have the same magnitude (while the directions are opposite).
The gravitational force that the Earth exerts on the Sun is consequently equivalent to and, in fact, opposite of the gravitational force that the Sun exerts on the Earth, according to Newton's third law.
Therefore, the correct option is d. The Sun's gravitational pull on the Earth would decrease.
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Snapdragons show incomplete dominance in their flowers. A pink snapdragon is crossed with a red snapdragon. What color(s) are the offspring
Food poisoning is caused by eating contaminated foods. How Can it be prevented?
Answer:
By putting the food in a safe container
Plants use carbon dioxide to build organic molecules during the process of:.
Answer:
The answer is Photosynthesis.
Explanation:
Its the process of change and carbon come from CO2.
PLEASE HELP ASAP
which of these functions could be compromised in the
burn patient.
The functions are
1. Protection
2. Regulating body temperature
3. Water balance
4. sensory reception
Answer:
The correct answer is Regulation body temperature
Importance of oxygen cycle
Answer:
The Oxygen Cycle is an essential biogeochemical Cycle to maintain the concentration and level of Oxygen in the atmosphere. The Oxygen Cycle is one of the main reasons for the existence of life on earth. Without Oxygen, the biosphere could not exist.
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