Answer:
Suitability of environment and tolerance.
Explanation:
Suitability of environment and tolerance is the reason which tells that an introduced species might be very successful in a new environment. The species have all the adaptations that helps in the survival of introduced organism. Strict checking on the airports and destruction of plant species that the person bring with it are the actions take by the government that prevent the introduction of additional new species in the ecosystem.
An investigation is an example of
A. Bias
B. Pseudoscience
C. Inquiry
D. The scientific method
An investigation is an example of
[tex]\sf\purple{D. \:The\: scientific\: method .}[/tex]
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why is it important to ensure that the potted plant is destarched
gymnosperms is an advance ground than pteridophytes ? justify
Both gymnosperms and pteridophytes are groups of plants that evolved before the appearance of flowering plants (angiosperms).
While it is difficult to definitively categorize one group as being more advanced than the other, there are certain characteristics of gymnosperms that are considered more advanced compared to pteridophytes.
Here are a few reasons why gymnosperms are often considered more advanced:
1. Reproductive Structures: Gymnosperms have advanced reproductive structures compared to pteridophytes. Gymnosperms produce seeds, which are protected structures containing the embryo plant and a food source, allowing for successful dispersal and germination.
Pteridophytes, on the other hand, reproduce through spores, which are more vulnerable and have lower survival rates compared to seeds.
2. Pollination: Gymnosperms typically have more advanced pollination mechanisms. They often rely on wind or animals for pollination, whereas pteridophytes primarily depend on wind for spore dispersal.
The use of animals for pollination, such as insects or birds, is considered more advanced as it allows for a more precise and efficient transfer of pollen.
3. Vascular Tissue: Both gymnosperms and pteridophytes have vascular tissue (xylem and phloem) for the transport of water, nutrients, and sugars. However, gymnosperms have more efficient vascular systems, allowing for better nutrient and water uptake.
This increased efficiency is attributed to the evolution of specialized conducting cells called tracheids, which are more advanced than the conducting cells found in pteridophytes.
4. Adaptability: Gymnosperms exhibit a wider range of adaptability compared to pteridophytes. They can thrive in diverse habitats, including harsh and cold environments.
Gymnosperms have evolved various adaptive features, such as needle-shaped leaves, thick cuticles, and reduced leaf surface area, which helps reduce water loss and increase tolerance to extreme conditions.
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2. Complete the chart below. The first one is done for you.
Liesita factor Explanation of limiting factor Example
Physical
Barriers
A river, mountain or other landform The animals and plants on an island can't
that blocks an organism from moving migrate to other seas.
to another suitable place.
Sunlight
Water
Temperature
Soil
Answer:
Physical barriers stops migration of animals.
Explanation:
Physical barriers are the substances that prevent the migration of movement of organism from one region to another. River, mountain or other landform are the examples of physical barrier that prevents movement. The animals and plants that are separated from the external environment breeds within the existing population and adopt itself towards the change that occurs in the environment.
At a chemical synapse, the intensity of the stimulus is coded by _______. At a chemical synapse, the intensity of the stimulus is coded by _______. the amount of calcium that enters the axon terminal the amount of neurotransmitter released and the amount of calcium that enters the axon terminal the amount of neurotransmitter released the size of the action potential the size of the action potential and the amount of neurotransmitter released
Answer:
The correct answer is - the amount of neurotransmitter released and the amount of calcium that enters the axon terminal.
Explanation:
The intensity of the signals or stimulus depends on the amount of the neurotransmitter such as acetylcholine, dopamine and the amount of calcium that enters the axon terminal.
A neurotransmitter is a chemical that carries, boost or balance a signal and send stimulus or signals throughout the body. When an action potential reaches the nerve terminal calcium channels open and enters.
What is the best way to determine family relationship between two individuals?
a. Comparing their blood types.
b. Comparing their genes.
c. Comparing their fingerprints.
d. Comparing their appearances
b. Comparing their genes.
Match the Following
1. asexual reproduction in which a single cell divides into two with no exchange of genetic material; reproduction method of bacteria
2. asexual reproduction involving the growth of a new individual from part of an older organism; uneven distribution of cytoplasm that results in one cell receiving most of the cell contents
3. a group of organisms attached to one another after undergoing asexual reproduction from a common parent
4. the part of the cell division that causes the separation of the cytoplasm
5. a phenomenon in which organisms break into two or more parts and then each part grows into a new individual
6. the process involving the division of the nucleus of a body cell
7. asexual reproduction in which a single cell undergoes many mitotic divisions in the nucleus and a number of daughter cells are produced all at once
cytokinesis
fragmentation
colony
mitosis
budding
binary fission
multiple fission
Answer:
cytominesis: 4
fragmentation: 5
colony: 3
mitosis: 6
budding: 2
binary fission:1
multiple fission: 7
Explanation:
I made flashcards in these. they are all correct, trust
What is hypocalcemia??
Answer:
hypocalcemia that , a condition in which the blood has too little calcium.
Explanation:
hope it may help you
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In the endocrine system, what is the function of a negative feedback loop?
Answer:
Negative feedback occurs when some function of the output of a system, process, or mechanism is fed back in a manner that tends to reduce the fluctuations in the output, whether caused by changes in the input or by other disturbances
Explanation:
When you have corona virus what is the main body system that is being affected? How does it affect other systems?
hey how to do this i need help
Answer:
AA=Hom0zygous
Bb=Heter0zygous
ff=Hom0zygous for recessive
Explanation:
2 capital letters is Hom0zygous
Mixed letters is Heterozygous
2 small letters is Hom0zygous for recessive
For summer squash, the dominant allele Y for gene 1 leads to yellow color while the recessive allele y leads to green color. Alleles of gene 2 can prevent color formation, with the dominant allele W leading to white squash while the recessive allele w does not interfere with color development. How many phenotypes would be observed among the offspring of the following cross: YyWw x YyWw
Answer:
Three phenotypes:
12/16 individuals are expected to be white3/16 individuals are expected to be yellow1/16 individual is expected to be greenExplanation:
Available data:
Gene 1 → Dominant allele Y ⇒ yellowRecessive allele y ⇒ green
Gene 2 → Dominant allele W ⇒ prevent color ⇒ WhiteRecessive allele w ⇒ Does not prevent color
Cross:
Parentals) YyWw x YyWw
Gametes) YW, Yw, yW, yw
YW, Yw, yW, yw
Punnett square) YW Yw yW yw
YW YYWW YYWw YyWW YyWw
Yw YYWw YYww YyWw Yyww
yW YyWW YyWw yyWW yyWw
yw YyWw Yyww yyWw yyww
F1) Genotype
1/16 YYWW2/16 YYWw1/16 YYww2/16 YyWW4/16 YyWw2/16 Yyww1/16 yyWW2/16 yyWw1/16 yywwPhenotype
12/16 white individuals ⇒ Y-W-, yyW- (Dominant W allele is present, inhibiting the expression of color)3/16 yellow individuals ⇒ Y-ww (Dominant W allele is absent, so color can be expressed. Y allele determinates yellow color)1/16 green individuals ⇒ yyww (Dominant allele W is absent, so color can be expressed. Only y alleles are presents coding for green color)Which substance is a heterogeneous mixture?
A. a sugar cube
B. pure olive oil
C. liquid dishwashing soap
D. chicken noodle soup
pls answer asap!
Which sentence best summarizes the two competing models of planet
formation?
O A. The core accretion model states that planets form when clumps
of gas and dust collapse, while the gravitational instability model
states that small bodies grow bigger and attract layers of gas to
form planets.
O B. The gravitational instability model states that planets form when
clumps of gas and dust collapse, while the core accretion model
states that small bodies grow bigger and attract layers of gas to
form planets.
C. The gravitational instability model states that planets form
because changes in the new sun's gravity pull particles together,
while the core accretion model states that gravity between large
bodies pulls them apart into pieces that form planets.
D. The core accretion model states that planets form because
changes in the new sun's gravity pull particles together, while the
gravitational instability model states that gravity between large
bodies pulls them apart into pieces that form planets.
Answer:
A
Explanation:
A. The core accretion model states that planets form when clumps of gas and dust collapse, while the gravitational instability model states that small bodies grow bigger and attract layers of gas to form planets.
What are the models of planet formation?There are two main models of planet formation: the core accretion model and the gravitational instability model.
The core accretion model states that planets form when small particles, such as dust and gas, clump together and gradually grow into larger bodies. These bodies continue to attract more material, eventually forming a planet. This model is supported by the observed existence of small, solid bodies, known as planetesimals, in the early solar system.
The gravitational instability model, on the other hand, proposes that planets form when small bodies within a protoplanetary disk (a disk of gas and dust surrounding a young star) grow larger and become gravitationally unstable. This causes them to collapse and attract layers of gas, eventually forming a planet. This model is supported by the observation of large, gaseous planets, such as Jupiter, in the solar system.
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Rapid growth of cells is observed in tumors. One hypothesis of rapid tumor growth is that the creation of new cells uses old cells only as a scaffold to promote rapid growth similar to how crystal solids form. In this hypothesis, new cellular material is not created from preexisting cells. First a new nucleus of a cell attaches to the preexisting cells followed by the formation of the cytoplasm and lastly a cellular membrane forms around the cytoplasm-nucleus complex. This process can only happen if there is a pre-existing lattice network of cells that can function as a site of nucleation. Group of answer choices This hypothesis is not supported by cell theory because new cells are not created from older, preexisting cells. This hypothesis is not supported by cell theory because cell walls are required to grow new cells
Answer:
This hypothesis is not supported by cell theory because new cells are not created from older, preexisting cells.
Explanation:
This hypothesis does not agree with cell theory because it states that new cells do not need pre-existing cells to be created. Cell theory states that cells are generated from old, pre-existing cells, which go through the process of cell division to create new cells.
We can see the disagreement of this hypothesis with the cell theory in the lines:
" In this hypothesis, new cellular material is not created from preexisting cells."
Please help, correct answers only, will give brainliest.
Answer:
B option
Explanation:
Hope this helps
What is the impact of life skill to you? A. To be able to create problems B. To be self assertive. C. To be influenced by friends D. To maximize risk in life situation.
Answer:
To self assertive
Explanation:
Gives you confidence and advance on you're own personality and views.
how does the pH of milk change when it is fermented to make yoghurt
Answer:
it gets lower
Explanation:
when milk begins to ferment it gets sour becoming more acidic and the pH gets lower.
Select all the correct answers.
.
Which three statements provide reasons that scientists are considering renewable sources of energy?
re...
Most renewable resources are clean and nonpolluting.
Renewable resources can be replenished.
ооооо
O Renewable sources are conventional resources.
Most renewable resources are easily available in nature.
All renewable resources are cost effective.
Reset
Reset
Next
Answer:
C&D
Explanation:
I JUST DID THE TEST
The three statements which provide reasons that scientists are considering renewable sources of energy are as follows:
Most renewable resources are clean and nonpolluting.Renewable resources can be replenished.Most renewable resources are easily available in nature.Thus, the correct options are A, B, and C.
What are Renewable sources of energy?Energy sources that are renewable are defined as those that miraculously come from natural sources and are replenished or recharged more quickly than they are actually consumed.
These energy sources are based on the idea of sources which are continuously replenished more quickly. Most of the time, this energy is produced in a clean, non-polluting manner. Since renewable energy comes from natural resources, it is substantially cheaper or free to get renewable energy in nature.
Therefore, the correct options are A, B, and C.
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What is the name for all physical material in the universe
Answer:
ATOM
Explanation:
Normal matter consists of the atoms that make up stars, planets, human beings and every other visible object in the Universe.
Answer:
Normal matter consists of the atoms that make up stars, planets, human beings and every other visible object in the Universe.
Explanation:
3. Holding hands in public is uncomfortable for Blake. Reese does not know this
about Blake and tries to hold hands while walking in the hallway one day at
school. Blake gets really angry and storms off away from Reese. Blake realizes
this boundary was never communicated with Reese but now Reese knows. Since
Blake reacted so badly when Reese tried to hold hands, Blake doesn't really need
to say anything.
True or false?
how do you increase the rate of a chemical reaction?
a. increase the amount of reactants present
b. reduce the temperature
The reason that the mail bed appears pink is the presence of a larger number of melanocytes in the underlying dermis
Complete question:
True or False: The reason that the nail bed appears pink is the presence of a larger number of melanocytes in the underlying dermis.
Answer:
False
Explanation:
Nails are composed of the lamina, which is a smooth, shiny, translucent, and keratinized structure. The nails are born the nail matrix. The newly formed nail slice along the mail bed, which is the plane surface under the nails.
The nail bed places under the nail and is composed of a thin epithelium, with no granulous stratum, and a few layers of parakeratotic cells attached to the nail.
The nail matrix and nail bed have melanocytes. Half of the melanocytes of the matrix produce melanin, while melanocytes of the nail bed are inactive.
The nail bed is laying over many small vessels that nourish it and provides a pink color to the nails.
What is a difference between prokaryotic and eukaryotic cells?
A.
Eukaryotic cells do not have membrane-bound organelles, but prokaryotic cells do.
B.
Prokaryotic cells do not have a nucleus, but eukaryotic cells do.
C.
Organisms with eukaryotic cells are always multicellular, but organisms with prokaryotic cells are not.
D.
Prokaryotic cells always have cell walls, but eukaryotic cells do not.
Answer:
B. Prokaryotic cells do not have a nucleus, but eukaryotic cells do.
Explanation:
in the cells of bacteria , cyanobacteria and mycoplasma,no nucleus is seen. these organisms are called prokaryotes .
but in the cells of amoeba ,animals and plants a well defined nucleus covered by membrane is seen. these organisms are called eukaryotes
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Some plants, such as roses, have thorns on their stems or branches. How do these act as an adaptation?
A. To stop animals from eating the stems
B. To produce more oxygen from photosynthesis
C. To attract insects
D. To produce more food
Answer:
Some plants, such as roses, have thorns on their stems or branches. These act as A. To stop animals from eating the stems.
A. To stop animals from eating the stems
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Which option is true about human population growth?
Select one:
It peaked in the 1960s. It's still growing but at reduced amounts.
It grew at a steady pace until the 1960s. After that, it sped up.
It peaked in the 1960s. It is now falling.
It grew at a steady pace until the 1960s. After that, it started dropping.
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Construct a triangle ABC if AB=60mm,BC=70mm,and AC=60mm. Name the triangle formed.
d co pn dExplanation:
The table lists the observations students made about four specimens under a microscope. Based on these observations, what specimens did the
students examine?
A. animal
B.plant
C.virus
D.prokaryote
1.cell membrane present
ribosomes present
lysosomes present
nuclear membrane present
2.cell wall present
ribosomes present
nuclear membrane absent
3.cell wall present
ribosomes present
nucleus present
large vacuole present
4.reproduces inside of a cell
nucleus absent
RNA present
Answer:
1. A
2. D
3. B
4. C
Explanation:
1. Lysosomes are properties only found in animal cells.
2. Prokaryotic cells such as bacteria present ribosomes, a cell wall but lack a nuclear memebrane.
3. Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole.
4. Some viruses reproduce using the lytic cycle. In the lytic cycle, the virus attaches to the host cell and injects its DNA, therefore reproducing inside of a cell.
Which is required for both anaerobic respiration and aerobic respiration?
.oxygen
• water
• mitochondria
• glucose
Answer:
water, mitochondria, and glucose
Explanation:
The key components needed for both aerobic and anaerobic cellular respiration within cell membranes are water, mitochondria, and glucose. Mitochondria are the power house of the cell responsible for transporting energy throughout other organelles.