Answer:
Magma pockets rise.
Explanation:
Answer:
It should be D, rocks beneath Earth's surface are forced toward the mantle.
Explanation:
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Chemical Reactions in Life Quick Check
What is photosynthesis? (1 point)
o a chemical reaction plants use to release energy from food
O a chemical reaction plants use to create water
a chemical reaction plants use to create new atoms
o
a chemical reaction plants use to create food
a chemical reaction plants use to create food
1
The diagram below represents a food chain in a garden.
Rose
Greenfly
Ladybird
Blackbird
A food chain in a garden
1.1
Name the organism above that represents the following:
(a) Herbivore
(b) Producer
(1)
(1)
1.2
A rose bush contains 1 000 kJ/m2 /year of energy and only 10% of this
energy is passed on at each trophic level of the food chain. How much
energy will be passed on to the blackbird? Show ALL your calculations.
(4)
1.3
If all the greenflies in this garden were removed, explain what would
happen to the populations of the following:
(a) Rose plants
(b) Ladybirds
(C) Blackbirds
(2)
(2)
(2)
(12)
Answer:
The correct answer is -
1.1 A. herbivore - greenfly
b. producer - rose
1.2. 1 kJ/m2/year
1.3 rose plants will increase, ladybirds will decrease, blackbirds will decrease.
Explanation:
In this food chain,
Rose >>Greenfly >>Ladybird >>Blackbird
Rose plants are the producers as they generate their food and energy and does not depend on other organisms where as greenfly are the primary consumer or herbivore as they depend on the rose plant for their food and energy only, however, ladybird as secondary consumer and blackbird as tertiary consumer depend on greenfly and ladybird respectively.
If rose plants have 1000 kJ/m2 /year of energy and as it is known that only 10% moves to the next tropic level then blackbird would have:
rose = 1000
greenfly = 1000*10/100= 100 kJ
ladybird = 100*10/100 = 10kJ
blackbird = 10*10/100 = 1 kJ
If greenfly removes from here the rose plant will increase as these depends and eat rose plants and lady bird will decrease as these are the primary source of food for lady bird and if ladybird decrease blackbird also decrease.
If an organism has a diploid number of 54, how many chromosomes will be in each of its gametes?
a. 54
b. 52
c. 27
d. 104
e. 108
There will be 27 chromosomes in each of its gametes.
• Meiosis is also called reductional division, in the process s-ex cells, that is, sperm and egg are produced, and each cell has the half number of chromosomes than its parent cells.
• In the given case, the organism is diploid with 54 chromosomes, that is, 2n = 54.
• Here n is the haploid number of chromosomes, in the given case, n = 27, that is, the haploid number of chromosomes is 27.
• Therefore, the sperm and egg cells have 27 number of chromosomes each.
Thus, the correct answer is option c, that is, 27.
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Why is a shell considered to be biotic?
A shell is considered as biotic (living) because it is a hard, rigid covering of many animals such as snail, sepia, pila, turtles, sea urchins. A shell is protective outer layer of these soft bodied animals.
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An organism and its taxonomic key are shown below.
Taxonomic Key
Step Characteristic Organism
1 8 legs --- Go to step 2.
More than 8 legs --- Go to step 3.
2 One body region --- Go to step 4.
Two body regions --- Go to step 5.
3 One pair of legs on each body segment ---- Centipede
Two pairs of legs on each body segment ------ Millipede
4 Less than 1 millimeter long --- Mite
More than 1 millimeter long --- Tick
5 Claw-like pinchers --- Go to step 6.
No claw-like pinchers --- Spider
6 Long tail with a stinger --- Scorpion
No tail or stinger --- Pseudoscorpion
Which organism is shown in the image?
A. Millipede
B. Spider
C. Scorpion
D. Tick
50. The flow chart below shows how a metamorphic rock can change into a
sedimentary rock. Which of these processes would be the correct label to
replace the question mark?
Metamorphic rock
Sediment
Sedimentary rock
Erosion
?
A) Cooling
B) Deposition
C) Melting
D) weathering
Answer:
The process that would be the correct label to replace the question mark in this question is:
B) Deposition
Explanation:
Deposition takes place after erosion of sedimentary rock. At this stage, the eroded sedimentary rocks build up under high pressure heat, wind, ice, water, and other natural forces to originate the rock formation cycle once again. Naturally, after deposition, the igneous rocks, which have then layered up sedimentary rocks to become metamorphic rocks.
Help please thank youu.
Each tissue and organ in the body has a function, and its metabolism is adapted to its function. For example, one tissue may synthesize fatty acids that are stored and oxidized by another tissue. Classify each phrase as describing the liver, adipose tissue, muscle tissue, the brain, or blood.
my brain can't process this lol
The brain is the tissue in the human body that cannot use fatty acid or glycogen as energy source.
Adipose Tissue:
These tissue store fat and use fat as the energy source.
Muscle:
It generate ATP as energy to provide energy for contraction.
Blood :
It transport nutrients and other metabolic substances between tissue and organ.
It process the
Brain:
It is the organ that cannot use fatty acid or glycogen as energy source,
Liver:
Use fatty acid, glucose or ketone bodies as fuel to generate energy.
Therefore, the brain is the tissue in the human body that cannot use fatty acid or glycogen as energy source.
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The immune system is the body's defense against infectious organisms and other invaders. Your immune system works by recognizing the difference between your body's cells and alien cells, allowing it to destroy anything that could be potentially harmful. Active and passive immunity play an important role in keeping you healthy.
What is the difference between passive and active immunity? (SC.912. L.14.52)
A. Naturally acquired active immunity occurs when the person is exposed to a live pathogen, develops the disease, and becomes immune while naturally acquired passive immunity occurs during pregnancy, in which certain antibodies are passed from the maternal into the fetal bloodstream
B. Both passive and active immunity are interchangeable
C. Passive and active immunity are both 1st line of defenses
D. Passive immunity occurs when a person is exposed to a virus and active immunity occurs when the immunity is passed on through breast feeding
Answer:
The answer would be A
Is hair a good source of criminal evidence, explain your answer?
Answer:
yes
Explanation:
Hair contains DNA of the criminal. DNA is unqiue to everyone, no one is ever simialr in DNA to eachother. So if a hair sample is found, then testing it would provide a great piece of evidence.
Answer:
yes because if the body is unditfied they can always take a hair sample and run it but if it is the killers they run it to see if it has dna strands and then if they find something they will get the suspect in and take a piece of their hair to see if it is the perfect match
Explanation:
A scientist isolates a disease-causing particle. Which of the following properties would indicate that the particle is a virus and not a bacterium?
Is this active or passive transport?
Answer: Passive transport
Explanation: If the direction is from left to right, then it is passive. Passive transport is like unconscious, like osmosis. If I open my lunchbox and I have a peanut butter sandwich, the peanut butter smell (molecules) will naturally spread around and so someone standing next to you will smell it, and someone 3 seats away from you will smell it. Note that it is EVENLY spreading out, so after a while the person sitting 3 seats away from you will smell the peanut butter with a similar intensity as the person sitting next to you. Active transport is doing something forcefully. If the direction was right to left, then it would be active transport. :D
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in complete sentences compare in depth neutrophils, eosinophils and the basophils.
Compare their functions
Compare their structures
Compare how they look when they are stained
Compare their counts
Answer: Neutrophils have a two-lobed or bilobed nucleus, while eosinophils have bean-shaped nucleus and basophils have a multi-lobed nucleus. The lifespan of neutrophils is 5-90 hours, whereas eosinophils lifespan is 8-12 hours and that of basophils have a life span of 60-70 hours. functions- All the granulocytes present in white blood cells play their role in fighting against pathogens and in destroying them, where neutrophils vital role is in engulfing the foreign or toxic particles through phagocytosis; Eosinophils are the first one in triggering the inflammatory response during allergic disorders; and Basophils prevents the immediate blood clotting, as it contains heparin (anticoagulant) in the body. structures- Neutrophils have a two-lobed or bilobed nucleus, while eosinophils have bean-shaped nucleus and basophils have a multi-lobed nucleus. ... Neutrophils make up to 40-75% of the total white blood cells, while eosinophils mark their presence up to 1-6% and basophils are up to 0.5-1% of the whole white blood cells. stained- Neutrophils:Neutrophils are stained in natural pink color. Eosinophils: Eosinophils are stained in brick red in acidic stains. Basophils: Basophils are stained in dark blue in basic stains. counts- Neutrophils are one of the primary types of white blood cells, that evokes the immune response against any foreign particle attack in the body. Eosinophils are another type of white blood cells, that helps in fighting against disease and allergies. Basophils are such white blood cells that help to diagnose the specific health problems like autoimmune disease or other blood disorder, etc. in the body.
Explanation:
How does a single fertilized egg cell develop into all the different cells of your body? Use cell division and differentiation in your answer.
Answer:
Once an egg is fertilized by a sperm, a zygote is formed. The zygote divides into multiple cells in a process known as cleavage, triggering the beginning of embryonic differentiation. Cells in these three layers will give rise to different parts of the organism. The endoderm eventually becomes the gut.
Explanation:
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A zygote is formed when an egg is fertilized. The zygote divides into multiple cells in a process known as cleavage, triggering the beginning of embryonic differentiation.
What is Differentiation?This is the process in which cells acquire different structure and function from one another to form distinct cell types.
When a zygote is formed, cell division takes place which helps to trigger differentiation of cells.
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Consider the following scenario:
A drought hits the habitat of a semi-aquatic bird population. All ponds dry up, and fish populations decline. There are two groups of birds in the population that differ in leg length and diet. Long-legged birds eat fish, while short-legged birds eat insects. The drought has little effect on insect populations.
What is the main selective pressure in this scenario?
(1 point)
drought
leg length
insect population
fish population
There are two varieties in a population of squirrels: short tails and long tails. Long-tailed squirrels are better at jumping and balancing in trees. Scientists observe that over the span of 100 years, the proportion of the population with long tails increases from 10% to 60%. Which statement is most likely? (1 point)
The proportion of long-tailed squirrels may have increased due to increased food availability.
The proportion of short-tailed squirrels may have decreased due to decreased food availability.
The proportion of short-tailed squirrels may have decreased due to an increase in trees.
The proportion of long-tailed squirrels may have increased due to a decrease in trees.
1. What is the main selective pressure in this scenario?
fish population.
2. According to the question, option "A" is correct The proportion of long-tailed squirrels may have increased due to increased food availability.
What is selective pressure?In evolutionary theory, the effect on survival of a species of the sum of all elements, physical and behavioural, inherent and environmental especially as an inherited characteristic may marginally affect survival under the influence of these elements.
Thus, the option "D" and "A" is correct.
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What is the characteristic of the sympathetic division of the autonomic nervous system?
A) Stimulates Digestion
B) Dilates the Bronchi
C) Slows the heartrate
D) Converts Glucose to Glycogen
Plzzzz help me with this (the words to fill the blank are at the top)
Answer:
The organisms and environments that make up a community, called an *ecosystem*, are constantly changing. Sudden and violent events, such as *storm surges or tornadoes* and *put the second option on whatever you choose first*. *Flooding* results when rainfall exceeds the holding capacity of a drainage system. *Hurricanes* are storms that develop over warm water. Tree's and plants are *uprooted* from the ground. By studying the histories of violent storms, *meteorologists*...
Explanation:
I did the most I could. I hope it helps!
can you live without a spleen
Answer:
Yes
Explanation:
Although the spleen is an important part of the Immune system, you can survive without it, because the liver can also have the same functions of a spleen. Although the liver can take over these functions it cant prevent all the bacteria that a spleen can prevent.
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what do mature red blood cells lack, and as a result cannot produce protein or reproduce?
- mitochondria
-cell membrane
-sodium channels
-nuclei
Answer:
4th answer nuclei
Guys, please take a look at this. I know that the answer is NOT A.
Answer:
C
Explanation:
There are 4 zeros, which fits the "at least three" criteria.
X plus a number means the root is negative on the graph, so all roots are negative.
(x+3) occurs twice meaning it has a multiplicity of 2.
All of the following are actions one may participate in if they are seeking group therapy except __________.
A. describing problems
B. sharing experiences
C. providing emotional support
D. setting goals for the group
Answer:
D
Explanation:
how large and power full can a tsunami be, put in your own words
Answer:
Well think of it like this a tsunami can destroy cities killing hundreds maybe even thousands they can get as tall as 150+ feet and not to mention leave millions of dollars in damage.
Explanation:
Answer:
Explanation: Hey, so when they hit land, most tsunamis are less than 3 meters high, but in extreme cases they can exceed 30 meters near their source. A tsunami can hit shore as a rapidly rising tide or wall of turbulent water, and a large tsunami can flood many meter of land. Hope it helps x.
Which of these are present in both woody and herbaceous stems? (Select all that apply.)
A. xylem
B. rings
C. seedlings
D. phloem
Answer:
xylem & phloem are present in both woody and herbaceous stems
Explanation:
Vascular system is present in both, woody and herbaceous stems. Thus, option A, and D are correct.
What are vascular tissues?In vascular plants, A tissue which is complex in nature, formed by more than one type of cells are called as vascular tissues. Two main types of vascular tissues are:
XylemPhloemThe transportation of water from roots to stem and leaves of the plant is carried out by xylem. Xylem consist of tracheids and vessel elements, which have different characteristics, but both play significant role in transportation of water and nutrients.
The soluble organic compounds synthesized during photosynthesis in the plants are transported by another vascular tissue called as phloem, in process called translocation. It consists of sieve elements, parenchymal cells, fibers, and sclereids.
Therefore xylem and phloem are present in both, woody and herbaceous stems.
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Look at the Density of Substances table. Which two substances from the table are buoyant in pure water?
A. silver and lead
B. lead and diamond
C. gasoline and ethyl alcohol
D. silver and diamond
Answer:
Silver and lead
Explanation: hope that helps
If the amino acids glycine, alanine and valine were combined in one molecule, what would the molecule be called?
Answer:
A tripeptide
Explanation:
Alanine (Ala), Glycine (Gly) and Valine (Val) are amino acids, i.e., organic molecules that contain at least an amino (–NH2) and one carboxyl (–COOH) functional group. The amino acids held together by peptide bonds, which are formed by a carboxyl group of one amino acid and an amino group of another one, in order to form a peptide. Thus, a tripeptide is a peptide composed of three amino acids joined by two internal (and sometimes three) peptide bonds. In the case above described, the tripeptide formed by the binding of Glycine, Alanine, and Valine can be abbreviated as Gly-Ala-Val (i.e., in this order).
What does photosynthesis produce?
Answer: cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen
Explanation:
i hope this help
Products that can be broken down by biological processes are considered
Answer:
The substance which can be easily decomposed by natural decomposers is called as biodegradable wastes such as humans and animal excreta, plant wastes.
Explanation:
because am cool
Answer:
it. can be biodegradable hope this helps
If individuals from box 1 and box 4 were crossed, what would be the genotypes of the
offspring?
F. all Bb
G. Bb and bb
H. BB and bb
I. BB and Bb
common leaves dichotomous key lab report
Answer:
.
Explanation: