The rocky material left behind by a retreating glacier forms what is called a moraine. When primary succession occurs on a moraine, which life-forms will help create the soil by breaking down bare rock?
A Insects
B Lichens
C Grasses
D Deciduous trees
Answer:
The correct answer is - B. Lichens.
Explanation:
Lichens are one of the pioneer species that can grow on bare rock such as moraine and help make soil for further ecological succession and making ground for other species.
Breaking the bare rocks to convert into the soil is part of the primary succession. Lichens are colonized over these rocks and they contain acid which leads to the breakdown of the moraine and other rocks.
Which three statements contain information about cats that is based on scientific knowledge rather than opinion?
Answer:
First claim '' cats are very smart animal''. Second claim '' cats make bonds with humans''
Sample Food Chain
Leaf------> Caterpillar--------> Chameleon---------> Snake-----------> Mongoose
Looking at the above picture, what is true?
A) The Mongoose is the tertiary consumer
B) The chameleon eats the snake
C) The chameleon is an autotroph
D) If Mongoose is removed, snake population would increase.
Answer:
D) if mongoose removed snake population would increase
Define the term:
1.Respiration
2.Transportation
Answer:
1 respiration the chemical process whereby energy rich molecules, example glucose,is chemically broken down to release energy.
Answer:
breathing in and out
Explanation:
the action or process of inhaling and exhaling breathing
movement of humans,animals and goods from one location to another
Flat discs inside chloroplasts that are arranged in stacks are called (2) ______________________ (3) ______________________ are light-absorbing substances that are inside chloroplasts. They absorb light of different (4) ______________________. The green pigment in plants that is essential for photosynthesis is (5) ______________________. Light energy absorbed by this pigment excites (6) ______________________. They are transferred to a(n) (7) ______________________ ______________________. Then they move down an electron transport chain.
Answer:
Flat discs inside chloroplasts that are arranged in stacks are called (2) __thylakoids_. (3) __Pigments__ are light-absorbing substances that are inside chloroplasts. They absorb light of different (4) __wavelenghs__. The green pigment in plants that is essential for photosynthesis is (5) __Chlorophyll __. Light energy absorbed by this pigment excites (6) ____electrons___. They are transferred to a(n) (7) _Electron Carrier_. Then they move down an electron transport chain.
Explanation:
The chloroplasts are limited by an outer membrane and an inner one. In the middle of the two membranes, there is a space left called intermembrane space. In the interior of the inner membrane, there is another space known as the stroma. Within the stroma, there is the third system of membranes, known as thylakoids. They are disk-shaped structures, limited by a membrane, and in their interior, there is a space named thylakoid space.
Thylakoids are arranged as piles, receiving the name of grana. Grana connect to each other by a longer thylakoid membrane. The photosynthetic pigments are placed in the thylakoids, where it occurs light-dependent reactions. These molecules are in charge of light absorption. The most common pigment is chlorophyll, which provides the typical green color of plants. When sunlight reaches the pigments, electrons get excited and move along the electron transport chain, places in the thylakoid membrane. This process occurs during photosynthesis, while new electrons provided by water molecules replace the excited ones. The final products are oxygen, ATP, and NADPH.
In the stroma, it takes a place the Calvin cycle.
1. The first person to observe cells was?
Answer:
robert hooke
Explanation:
In a large population of sea stars, half of the individuals possess the red allele and half possess the purple allele. A change in the genome has been introduced, and many of those with purple allele are dying. Therefore, the red allele has become more frequent over time.
Which of the following requirements for the Hardy-Weinberg equilibrium is not being met?
Answer:
A
Explanation:
All mating must be totally random
Hardy-Weinberg equilibrium is a mathematical model that describes the genetic equilibrium of a population in terms of allele frequencies. It states that allele frequencies in a population remain constant over time in the absence of any evolutionary forces.
What are the requirements of the law ?In order for this balance to be maintained, five basic requirements must be met: large population size, random mating, no mutations, no migration, and no natural selection. In this case, the starfish population does not satisfy the fifth requirement for no natural selection.
Natural selection occurs as individuals with the purple allele die off, resulting in the red allele becoming more common over time. This type of directional selection causes allele frequencies to deviate from Hardy-Weinberg equilibrium.
Therefore, no natural selection requirement is met in this starfish population. This causes allele frequencies to change over time, leading to a deviation from Hardy-Weinberg equilibrium.
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what is the menstrual cycle
3characteristics of good respiratory surface
thin walls.
a moist inner surface.
a huge combined surface area.
porque a los seres vivos se los consideran sistemas abiertos y complejos?
Explanation:
los seres vivos pueden considerarse sistemas abiertos porque cada ser vivo es un sistema complejo constituido por un conjunto de subsistemas que interactúan y funcionan por un objetivo en común, la conservación y la continuidad de la vida.
mention 5 ways of preventing STI
Answer:
Use latex condoms every time you have sex.
Avoid sharing towels or underclothing.
Wash before and after intercourse.
Get a vaccination for hepatitis B.
Get tested for HIV.
Explanation:
its common sense
during what phase of the cell cycle does the cell prepares for Mitosis?
Answer:
interpahse
Explanation:
A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and completes its division
Answer:
during interphase......
What does a two direction arrow indicate in a chemical equation
Answer:
reversible reaction
Explanation:
The double arrow denotes a reversible reaction. The reactants become products and the products can become reactants again using the same process.
.5km/sec north by northwest is an example of
speed
acceleration
velocity
distance
Answer:
The answer is Distance.
If something is 12 grams and has a volume of 1.6 cubic centimeters, how many grams per cubic centimeter.
Answer: 7.5 grams per cubic centimeter.
Explanation:
We area given that , Mass of something is 12 grams
Volume of that thing is 1.6 cubic centimeters
To find gram per cubic centimeters, we will divide Mass by Volume ( which computes Density)
Number of gram per cubic centimeters = [tex]\dfrac{12}{1.6}[/tex]
Number of gram per cubic centimeters = 7.5
Therefore, 7.5 grams per cubic centimeter. (density of the thing)
A sponge actually feeds by
a. acting as a net in a current that sweeps food particles through it.
b. squeezing the spongocoel cavity and sucking debris in and out through the osculum.
c. the beating of the flagella of collar cells, forming a current; food is absorbed by collar cells.
d. the beating collar cells form a current from osculum to pores; the food is engulfed by amoebocytes in the central cavity of the sponge.
e. water the moves gently through the sponge and the amoebocytes that engulf passing food.
Answer:
c. the beating of the flagella of collar cells, forming a current; food is absorbed by collar cells.
Explanation:
Sponges contains the unique feeding system that should be with the animals. Rather of mouths they have the tiny pores that we called as the ostia displayed on the outer walls via water is drawn. Here cells in the sponge walls strainer the food from the water because the water is pumped via the body and the little mouth
So as per the given options, the option c is correct as the collar cells would create the current and the food should be absorbed by the collar cells
The diagram below represents the time a cell spends in the two main phases
of the cell cycle. Which section of the diagram represents the phase during
which the cell divides, and what is this phase called?
A. Yellow area: Interphase
B. Yellow area: M phase
C. Blue area: M phase
0 D. Blue area: Interphase
Answer:
The yellow ares is m-phase
Explanation:
This is where the cell divides into two nucleus.
The blue area in the diagram represents the phase during which the cell divides, and this phase is called the M phase or mitotic phase. Therefore, option C is the correct.
What is mitotic phase?The mitotic phase, also known as the M phase, is the phase of the cell cycle during which a single cell divides into two identical daughter cells. This process of cell division is essential for growth, development, and repair of tissues in multicellular organisms.
The M phase consists of four stages: prophase, metaphase, anaphase, and telophase. During these stages, the replicated chromosomes condense and align at the metaphase plate, separate and move towards opposite poles of the cell during anaphase, and then decondense and form two separate nuclei during telophase.
The M phase is tightly regulated by a complex network of checkpoint pathways that ensure the accurate segregation of chromosomes and prevent the formation of abnormal cells, which can lead to diseases such as cancer.
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Cellulose is found throughout the cell wall of plant cells so cellulose make cells walls Ridgid which indicates that Cellulose is a
Explain how is sunlight distributed across the world
Answer:
The sun is distibuted across the world due to The environment works in a similar way to a car's heat engine. Winds, precipitation, and evaporation processes in the atmosphere, on the other hand, spread the sun's energy across the Earth. Conduction, convection, and radiation are the methods through which heat energy is transferred.
Explanation:
I took earth science
How does ocean expansion occur?
Answer:
Sea level rise
Explanation:
what is the meaning of respiration
Answer:
in physiology respiration is the movement of oxygen from the outside environment to the cells with tissues and the removal of carbon dioxide in the opposite direction .. in contrast exhalation is usually a passive process
hope it's helpful
Answer:
The process of breathing.
Explanation:
The lungs and respiratory system allow us to breathe. They bring oxygen into our bodies (called inspiration, or inhalation) and send carbon dioxide out (called expiration, or exhalation). This exchange of oxygen and carbon dioxide is called respiration.
**Physiological respiration and cellular respiration are not the same. People sometimes use the word "respiration" to refer to the process of cellular respiration, which is a cellular process in which carbohydrates are converted into energy. The two are related processes, but they are not the same.
The endosymbiosis hypothesis is supported by all of the following pieces of evidence except the fact that Group of answer choices chloroplasts reproduce through a splitting process like certain prokaryotes. mitochondria have circular DNA like prokaryotes. chloroplasts have ribosomes like prokaryotes. mitochondria lack ribosomes like prokaryotes.
Answer:
The correct answer is - mitochondria lack ribosomes like prokaryotes.
Explanation:
The Endosymbiotic Theory says that mitochondria and chloroplast in eukaryotic cells are developed by the once aerobic bacteria that were engulfed by a large anaerobic bacteria.
This theory suggests the origin of eukaryotic cells. Various evidence exists such as mitochondria and chloroplasts contain their own circular DNA like prokaryotic cells and mitochondria and chloroplasts have 70S ribosomes like prokaryotes have.
which African country is famous for chocolate
Explanation:
Ivory Coast is famous for chocolate .
hope it is helpful to you
Answer:
Congo is famous for their high quality "Lowua pin cilla" chocolata that's made from organic cocoa beans that were raised using the water from the rivers that are highly infused with natural nutrients.
How do white blood cells protect the body against infections
Answer:
White blood cells, which are also called leukocytes or white corpuscles, are a cellular blood component that does not include hemoglobin, have a nucleus, are motile, and protect the body from infections and diseases through ingestion of foreign materials and cellular debris, destruction of infectious agents and cancer cells or production of antimicrobials.
Explanation:
There are 4,500 to 11,000 cells in the white blood of a healthy adult person per cubic mm of blood. During the day, fluctuations in the number of white cells take place; lower values during rest and higher during exercise are attained. The quantity of white cells increases abnormally, while the number decreases abnormally, Leukopenia.
Intensive physical activity, seizures, extreme emotional response, pain, pregnancy, labor, and specific conditions such as infections and intoxications may increase the counting of white cells. In reaction to some types of infections or medication, or in conjunction with certain illnesses such as chronic anemia, malnutrition, or allergy, the number may drop.
in which terrestrial biome can you find tress that produce cones instead of flowers and needles instead of leaves?
Answer:
I think coniferous forest is the answer
Answer:
Coniferous forest and Lower
What will happen if deforestation continues to destroy the green plants on the
planet?
A. The excess CO2 in the atmosphere will increase global warming.
B. The excess CO2 will be absorbed into the ocean.
C. The remaining plants will cycle all the air.
D. The remaining plants will increase their rate of photosynthesis.
Answer:
A. The excess CO2 in the atmosphere will increase global warming.
Explanation:
Without enough trees here to process Co2 global warming will increase
What would happen if there were no condensation stage in the water cycle?
answer : there would be no rain.
Anyone know this problem?
Answer:yoda
Explanation:
It is often difficult to save individual species
this is true, but where is the problem? or do i just not see it?
In the _________________________were the absorption of nutrients takes place, the enzyme ___________________hydrolyses ___________________ into _________________________
A. small intestine -lipase-lipid-fatty acid and glycerol
B. mouth-salivary amylase-lipid-amino acid
C. small intestine-lipase-protein-amino acid
Answer:
A)
Explanation:
In the small intestine where the Absorption of nutrients takes place, the enzyme lipase hydrolyses lipid into fatty acid and glycerol
