Answer:
False
Explanation:
The 22 pairs of homologous chromosomes contain the same genes but code for different traits in their allelic forms since one was inherited from the mother and one from the father. So humans have two homologous chromosome sets in each cell, meaning humans are diploid organisms.
Why has the medical industry changed the procedures ?
PLEASE CAN SOMEONE HELP I AM TAKING A TEST AND NEED A ANSWER QUICKLY I WILL REWARD BRAINLIEST
Which of the following best defines the process of the cells, tissues, organs, and organ systems all working together to maintain a stable internal environment?
Group of answer choices
A. digestion
B.homeostasis
C. excretion
D. disequilibrium
Answer:
Process of the cells, tissues, organs, and organ systems all working together to maintain a stable internal environment are best defined by the term homeostasis (option B).
Explanation:
All living organisms perform their functions properly by maintaining some conditions of the internal environment constant, such as temperature, pH and amount of water or electrolytes. This also guarantees a healthy state and a longer life.
The maintenance of the organic balance is done by an internal regulation system, called homeostasis. Homeostasis means all the processes aimed at preserving the balance and fulfilling the organic functions properly.
The other options are not correct because:
A. Digestion is the process by which nutrients are converted into small molecules that are easily absorbed by the body.
C. Excretion is the process of eliminating waste from metabolic and organic processes.
D. Disequilibrium is the term applied to the failure or loss of ideal conditions or balance.
Three red square pieces of wood, four yellow square pieces, and five blue square pieces are put into a cloth bag. Four red round pieces, two yellow round pieces, and three blue round pieces are also put into the bag. All the pieces are then mixed about. Suppose someone reaches into the bag (without looking and without feeling for a particular shape piece) and pulls out one piece.
The question is incomplete. Here is the complete question.
Three red square pieces of wood, four yellow square pieces, and five boue square pieces are put into a cloth bag. four re round pieces, two yellow round pieces, and three blue round pieces are also put into the bag. All the pieces are then mixed about. Suppose someone reaches into the bag (without looking and without feeling for a particular shape piece) and pulls out one piece.
What are the chances that the piece is red round or blue round piece?
a. Cannot be determined
b. 1 chance out of 3
c. 1 chance out of 21
d. 15 chances out of 21
e. 1 chance out of 2
Because:
a. 1 of the 2 shapes is round
b. 15 of the 21 pieces are red or blue
c. There is no way to tell which piece will be picked
d. Only 1 of the 21 pieces is picked out of the bag
e. 1 of every 3 pieces is a red or blue round pieces
Answer: b. 1 chance out of 3
e. 1 of every 3 pieces is a red or a blue round pieces
Explanation: Inside the bag, there will be:
Total of squares: 3 + 4 + 5 = 12Total of round: 4 + 2 + 3 = 9Total of pieces inside the bag: 12 + 9 = 21The question is asking for a round red piece. The probability of that happening is
P(r) = [tex]\frac{4}{21}[/tex]
And a blue round piece:
P(b) = [tex]\frac{3}{21}[/tex]
It is a "OR" probability, so:
P(r or b) = [tex]\frac{4}{21} +\frac{3}{21}[/tex]
P(r or b) = [tex]\frac{7}{21}[/tex] or [tex]\frac{1}{3}[/tex]
Which means 1 out 3 pieces taken out of the bag will be red or blue.
How can scientists investigate the impact of limiting factors on a population?
Answer:
Limiting factors are resources or other factors in the environment that can lower the population growth rate. Limiting factors include a low food supply and lack of space. Limiting factors can lower birth rates, increase death rates, or lead to emigration.
Explanation:
What is an Archimedean screw used for?
1. To move things from a higher level to a lower level.
2. To change the orientation of an object.
3. To change the direction of an object.
4. To move things from a lower level to a higher level.
Answer: c
Explanation:
The Archimedean screw is to move things from a lower level to a higher level.
What is the Archimedean screw?
The Archimedean screw is one of the oldest and most usefull hydraulic machines. It is said to have been developed by Archimedes himself in ancient Greece.
The basic use of the Archimedean screw is to lift water from a lower to a higher point therefore, the use of the Archimedean screw is to move things from a lower level to a higher level.
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Bromothymol blue (BTB) is a chemical indicator for carbon dioxide (CO2). In the presence of carbon dioxide (CO2), BTB turns from blue to yellow. An aquatic plant was placed into two test tubes containing BTB, and the test tubes were closed with a stopper. Then, one test tube was placed in the dark, and the other test tube was placed in direct sunlight. The test tube in sunlight stayed blue indicating no CO2 was present, while the test tube in the dark changed to yellow. Which statement best explains why the solution in the test tube placed in the dark changed to yellow?
Answer:
Explanation:
Although no options was given, the explanation below should give detail explanation.
The Chemical reactants( internal factors) for the process of photosynthesis are C02 and H20, and enzymes. Other external factors are sunlight and chlorophyll.Therefore for a plant to undergo photosynthesis these reactants must be present in the presence of sunlight.
In the present scenario the plant in the test tube exposed to sunlight must used up the C02 with water and exposed sunlight to produce O2 -the by products and CHO,Protein and Lipids in plants.
Since the C02 has metabolised,no CO2 would be present in the test tube of the plant and the water, hence BTB is negative,blue- no C02.
However,the plants in the dark lacks the supply of sunlight therefore no photosynthesis could occur.Consequentially the C02 is not metabolized,and its concentration is high in the leaf in the test tube placed in the dark.This is indicated as yellow positive by the BTB which change from Blue to yellow.
Please help answer 1. A. B. C. D. And E.
Answer:
A is correct
B is correct
C is lady bird
D is thrush
E is lettuce
The development of a new community in a previously uninhabited area occurs via which of the following processes?
a.secondary succession
b.primary succession
c.adaptive radiation
d.geographic isolation
Answer: B. Primary Succession
APEX: Biology Sem1; Dry Lab 2.4.3
2. What is the name of the enzyme that breaks down:
a. Protein?
b. Carbohydrate?
c. Fat/Oil?
Answer:
a. Protein: Protease
b. Carbohydrate: Amylase
c. Fat/Oil: Lipase
Explanation: cause your nipples are swollen
A different jar has 100 black marbles. (The total number of marbles is unknown.) If you pull 4 marbles out and 1 is black, what is your guess for the total number of marbles?
Answer:
400 marbles
Explanation:
The total number of marbles should be 400.
Given that,
A different jar has 100 black marbles. (The total number of marbles is unknown.) If you pull 4 marbles out and 1 is black.Based on the above information, the calculation is as follows:
[tex]= 100 \times 4[/tex]
= 400
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What does geologic time
measure?
Answer:
The geologic time scale is the “calendar” for events in Earth history. It subdivides all time into named units of abstract time called—in descending order of duration—eons, eras, periods, epochs, and ages.
Explanation:
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Environmental science:
Explain how the total amount of matter is conserved during the carbon cycle?
Can someone pleaseeee help me?!
Answer:
The Law of Conservation of Matter states that matter cannot be created or destroyed. The carbon cycle is an example of the Law because the same carbon atoms are being recycled through the carbon cycle. ... Carbon is used for energy, and some is stored for growth.
Hiiii pls answe this
Answer:
D
Explanation:
Answer:
D
Explanation:
D is the correct answer, because the Cell Theory does not state what D says.
what are 2 types of revolutions that impacted the growth rate of the human population?
How many first-level consumers are in the food web below? *
Answer:
2: Shrubs and grasses
Explanation:
Shrubs and grasses are both first level consumers, obtaining their energy from the sun. They are also the source, essentially, of the entire food web's food sources.
i’m having trouble on this anyone know what goes there?
Answer:
reactants
Explanation:
....................
give one example of a primary consumer in the above web
Lesson 1 student activity: how did this little girl get so sick? Answer key
Answer: please inform me because i don’t see anything
Explanation:
girl where’s the pic of it
Draw a space filling model of water and show and describe why it is polar.
Answer:
You need to draw a water molecule but on each end put a positive and negative that is why water is polar because it is attracted to itself.
Explanation:
E If you increase the surface area of a rock, how will it affect the rate at which it weathers? It will weather more quickly. b. It will have no effect because surface area is not a factor in weathering. It will weather more slowly. d. It will have no effect because a rock does not have a surface area. C.
Answer:
it will weather more quickly
Answer:
It's A
Explanation:
Stars begin their life cycle in: a. a black hole. b. a nova. c. a nebula. d. a supernova. explain for every answer PLEASE I NEED IT IS DUE TODAY!!!!!!!!!!!!!!!!
Answer:
C. a nebula
Explanation:
a supernova is when it explodes and then it turns into a black hole
Which of the following is the primary function of the nucleus?
Answer:
The nucleus has very important roles to play. As it contains genetic material, it coordinates cell activities like protein synthesis and cell division. Anatomically the nucleus is made up of several components: nuclear envelope, nuclear lamina, nucleolus, chromosomes, nucleoplasm are some of these components.
Explanation:
The nucleus controls and regulates the activities of the cellular (e.g., growth and metabolism) and carries the genes and systems that include the hereditary statistics.
What are the two number one capabilities of the nucleus?The nucleus has 2 primary features: it's miles responsible for storing the cell's hereditary cloth or the DNA. it is liable for coordinating the various essential cell activities along with protein synthesis, cellular division, growth, and a bunch of other critical features.
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A plant is an example of a heterotroph. True
False
Answer:
False
Explanation:
Heterotroph means energy is made through consuming another organism.
Autotroph means energy that is made through producing by itself.
A plant makes energy by itself
So a plant is an autotroph, so this statement is false.
What best describes the relationship between the two sets of reactions of photosynthesis, which are the light-dependent reactions and the light-independent reactions?
Answer:
The light-dependent reactions produce ATP and NADPH, which are then used by the light-independent reactions.
Light-dependent reactions and light-independent reactions both produce each set of sugars, and working together they produce more sugars than they can produce separately.
What are Light-dependent and independent reactions?Light-dependent reactions which convert light energy into chemical energy, so the goal of the light-dependent reactions of photosynthesis is to collect energy from the sun and break down water molecules to form ATP and NADPH, while these two energy storage molecules occur which is used in light-independent reactions.
Light-dependent reactions occur in the thylakoid membrane that use light energy to make ATP and NADPH while in light-independent reactions or the Calvin cycle where electrons activated from light-dependent reactions provide energy to make carbohydrates from carbon dioxide molecules.
Thus, Light-dependent reactions and light-independent reactions both produce each set of sugars, and working together they produce more sugars than they can produce separately.
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HELP ME PLZZ I NEED HELP WITH THIS!!!!
Answer:
c. plant cells
Explanation:
tiny spaces in dead cork bark
Which part of Earth is included in the hydrosphere?
Answer:
air
Explanation:
Water, surface ground and air.
Explanation:
Fill in the blank with the correct sphere label.
A
В:
C
Answer:
it is a = exosphere b = biosphere and c = hydrosphere
Explanation:
the exosphere takes part in rocks and soil etc. the biosphere takes part of animals and plants etc. and the hydrosphere takes part of any water like lakes, oceans, ponds etc.
i hope i helped!
Who can help me ? It’s due at 12:59:(
Answer:
wow
Explanation:
good luck
What is meant by "true nucleus".
it simply means the cell's DNA is surrounded by a membrane. therefore the nucleus houses the cell's DNA and directs the synthesis of the proteins and ribosomes the cellular responsible for protein synthesis.
What DNA strand is complementary for the DNA strand attgcgtatcc
Answer:
TAACGCATAGG
Explanation:
The complementary for A is T (visa versa)
The complementary for G is C (visa versa).
So we just have to put the complementary for each letter to get the complementary strand.
Hope this helps!