When Ca(OH)₂ is added to a beaker of water the solution would turn phenolphthalein pink. thus option B is correct.
What is phenolpthalein?
Phenolphthalein is a common indicator and is only pink when in basic solutions.
By adding calcium hydroxide, you are turning the solution into a basic solution since the concentration of OH⁻ ions is going up and therefore any phenolphthalein in solution would turn pink.
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Answer:
b
Explanation:
Which of the following statements about the Hardy-Weinberg principle are true?
Select all that apply.
It assumes certain forces are acting on a population.
It is used to model genetic equilibrium.
It assumes certain forces are not acting on a population.
It is used to model gene flow.
Answer:
-It assumes certain forces are not acting on a population
-It is used to model genetic equilibrium
It assumes certain forces are not acting on a population and It is used to model genetic equilibrium.
Thus, Mendelian genetics are discussed in the context of populations of diploid, sexually reproducing individuals in the Hardy-Weinberg Theorem.
This theorem argues that allele frequencies in a population won't change from generation to generation under a particular set of assumptions.
The anticipated genotype frequencies are p2, 2pq, and q2 if a population has two alleles at a particular site and the allele frequencies are p and q. Once a population is in Hardy-Weinberg equilibrium, its frequency distribution won't vary from generation to generation.
Thus, It assumes certain forces are not acting on a population and It is used to model genetic equilibrium.
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Chemical reactions can create more complex products. What evidence best explains this phenomenon? WILL MARK BRAINLIEST FOR CORRECT ANSWER (100 points)
Water molecules combine to form complex macromolecules that the body needs.
The molecular structure of complex macromolecules show that a chemical reaction has occurred.
Larger macromolecules breakdown into smaller macromolecules and combine during the reaction.
The basic need for oxygen makes the element essential to create macromolecules.
Answer:
Option C
Explanation:
Larger macromolecules break down like water and create covalent macro molecules.
Later while chemical reactions they combine again to form covalent molecules .
Option C is correct
8. The relationship between the anemone and the boxer crab is an example of
mimicry
mutualism
Oparasitism
O commensalism
Answer:
The Answer is Mutualism.
Explanation:
...
Energy Pyramids represent the food chain energy and population sizes. Which statement is NOT true.
A. 90% of available energy is lost between each trophic level
B. Populations are smaller as you go up the pyramid
C. Heat is only lost at the consumer levels
D. Decomposers play a role at all trophic levels
You are assigned with the task of comparing the United States with Canada. Your
primary concerns are patriotism, college and career readiness, crime rates, wealth,
cultural norms and values. Which social institution would best help you with your
research?
a- Family
b-Religion
c-Education
d- Economics
A leaking septic tank is polluting groundwater. What kind of pollution is this?
A: watershed pollution
B: nonpoint-source pollution
C: point-source pollution
D:aquifer pollution
Does the King Fish have the same organ of respiration as Dolphins do? Justify your answer
Answer:
Dolphins are mammals, not fish. Unlike fish, who breathe through gills, dolphins breathe air using lungs.
They don't have gills, so they can't breathe underwater like fish. They breathe through a set of nostrils on top of their heads known as a blowhole. While swimming or resting under the water, they can take breathes by exposing only the tops of their heads to the air.
Like all mammals, dolphins have lungs and breathe air. They are the organ of the respiratory system which process the air inhaled through the spiracle.
I Will mark Brainliest: Which area is the most common source region for cold, dry air masses that move over NYS? 1) North Atlantic Ocean 2) Gulf of Mexico 3) Central Canada 4) Central Mexico
Answer:
1
Explanation:
north Atlantis ocean is the most common source region for cold
Here is an image of the mitochondria. Mitochondria numbers can differ between cell types based on the function of the cell. Which of these cells would contain the highest number of mitochondria?
A) skin cell
B) lung cell
C) muscle cell
D) red blood cell
[tex]\huge\mathbb{ANSWER:}[/tex]
[tex]_____________________________[/tex]
Which of these cells would contain the highest number of mitochondria?
A) skin cell
B) lung cell
[tex]C) \: \large\mathcal\color{red}{muscle \: cell}[/tex]
D) red blood cell
[tex]_____________________________[/tex]
[tex]\small\mathbb\color{gold}{Hope\: it \: helps}[/tex]
Answer:
Letter C is the correct answer Good luck study love your eyes
“*•Pls help me!!!•*”
Answer:
Cold weather
Explanation:
Drought, large numbers of plants, and heavy wind are all factors which would cause the further spreading of wildfiresWildfires generally take place in hot, humid, and dry weatherHence, cold weather decreases the magnitude of the wildfireOption 3Answer:
Cold weather
Explanation:
I second the other person, thank you! Have a blessed day <3
Explain the levels of organization beyond our planet.
Answer:
there is not much the land and earth could be better-tooken care of
Explanation:
If all of these organisms were
on one food chain, which
would be last?
A predator
B decomposer
C prey
D plant
Answer:
B. Decomposer
Explanation:
Prey eats plant, predator eats prey, decomposers eat predator.
Answer:
Option D, plants. Plants are the producers in this ecosystem, producers are always on the bottom of the trophic pyramid.
What are the components of DNA? What’s the structure of nucleotides and how do they connect?
Answer:
Components of DNA includes ribose sugar, phosphate group and four nucleotides(Adenine,cytosine,thymine,guanine).
Explanation:
DNA is made up of two linked strands that are wrapped around each other in a coiled pattern forming the double helix.Each strand of the DNA is made of a backbone that consist of a ribose sugar and a phosphate group.Each phosphate group is attached to one of the four nucleotides(Adenine,cytosine,thymine,guanine).The two strands of a single DNA molecule are linked by the nucleotides.Adenine and Guanine are called purines.cytosine and Thymine are called pyrimidines.Adenine from one strand makes a double bond with Thymine from another strand linking the two strands of DNA molecule.Cytosine from one strand makes a triple bond with Guanine from another strand linking the two strands of DNA molecule.A picture of DNA and nucleotide structure is attached below.I hope it helps.Identify the components of blood and describe the function of each component.
Plasma is the major component of the blood and is largely made up of water, with proteins, ions, nutrients, and wastes thrown in for good measure. The red blood cells are in charge of transporting carbon dioxide. Blood clotting is controlled by platelets. White blood cells are immune system cells that aid in immunological response.
what do you think might happen to a bird that doesn't have a beak that can be used to eat the food that exists in a certain area?
Answer:
Down below
Explanation:
The bird would either die, find other food, or evolve to have the beak it needs. It's a matter of natural selection. If the bird doesn't learn that it needs a certain beak, then the species will die off. However, if the bird learns that it needs a certain type of beak, it's species will evolve to have this beak. In the off-chance that the bird doesn't evolve, it will most likely find another source of food to survive.
Hope this helps! If you have anymore questions, I am free to answer them! :D
with a population growth rate of 5% how long will it take for a population to double from 20,000 to 40,000 people?
Answer:
15 years
Explanation:
Compound growth
Equation:
20000 x 1.05 to the power of how ever many years needed
20000 x 1.05 to the power of 15 takes it just over, with 41578 people alongside decimals.
Therefore, it is 15 years.
Answer:
20 years for the population to double from 20,000 to 40,000
what is the three kind of volume
Sphere Volume = 4/3 πr³ , where r is the radius.
Cylinder Volume = πr²h , where r is the radius and h is the height.
Cone Volume = 1/3 πr²h , where r is the radius and h is the height.
Name the three hormones that are involved in the stress response and identify their function.
Answer:
cortisol, catecholamines and thyroid hormone
Explanation:
trust
Answer:
Three hormones are adreenalin, cortisol, and your thyroid hormone.
Explanation:
Adrenaline is what gives you energy, cortisol is your prime stress hormone and the thyroid hormone slows when you are stressed. I hope this helps! :)
Based on the section "Zeus Is Helper And Protector," which of the following statements is TRUE? A Zeus and Jupiter are the same god. B Zeus tells rich people to only care for themselves. The Greeks believe Zeus is a powerful god. Zeus does not have the power to punish people. Park Next C D
Answer:
The Greeks believe Zeus is a powerful god
In a swamp a bird and a turtle feed on the same kind of fish. This will most likely result in
In a swamp a bird and a turtle feed on the same kind of fish. This will most likely result in Competition is an relations between organisms or species in which both need a resource that is in limited pool.
What is competition in an ecosystem?Competition will happen between organisms in an ecosystem when their niches overlay , they both try to utilize the exact resource and the resource is in lack of supply.
Fuana contend for chow, water and area to live. flora contend for light, water, minerals and root area.
So,Competition is an relations between organisms or species in which both need a resource that is in limited pool.
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How fossils are formed? Explain (3)
Answer:
Fossils are formed from the remains of creatures that went extinct many years ago. Fossils form by sediment building up over a long time period. This sediment then compacts, turning it into a solid. This solid may be rock, sap, or mud.
How does biotechnology use viruses and bacteria?
to copy a specific antigen
to produce proteins for human consumption
to respond to and destroy cancer cells in humans
as a carrier to insert a desired DNA segment into an organism
Use the graph to find the factorization of x2 - 7x+12.
A. (x-6)(x-8)
B. (x - 3)(x - 4)
C. (x+3)(x + 4)
OD+
D. (x + 6) (x+8)
Answer:
Explanation:
Use the graph to find the factorization of x2 - 7x+12.
A. (x-6)(x-8)
B. (x - 3)(x - 4)
C. (x+3)(x + 4)
OD+
D. (x + 6) (x+8)
Which is true according to Oparin and Haldane?
O The first organic molecules were formed in the sea, from the gases in the atmosphere.
O The early atmosphere contained methane, carbon dioxide, and oxygen
O The formation of amino acids was probably complete within one million years.
O Organic molecules eventually merged from several places on Earth.
Answer:
A) The first organic molecules were formed in the sea, from the gases in the atmosphere.
Explanation:
Here's a jist of what they proposed.
Meosis occurs in a ______________ that is a _______________ that undergoes a ___________________
Meiosis occur in diploid cell that undergoes reductional division.
what is meiosis?Meiosis, also called reduction division, division of a germ cell involving two fissions of the nucleus and giving rise to four gametes, or germ cells.
The process of meiosis is characteristic of organisms that reproduce through fusion. Such species have in the nucleus of each cell a diploid (double) set of chromosomes, consisting of two haploid sets (one inherited from each parent). These haploid sets are homologous—i.e., they contain the same kinds of genes, but not necessarily in the same form.
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Energy connection- Be able to identify an organism at each level of the
energy pyramid.
o Producers- What is their source of energy?
o Decomposers- What are they?
o Consumers
▪ Herbivores
▪ Carnivores
Omnivores
Scavengers
Which organisms are likely to be found in level 1 of this diagram? Select the
two correct answers.
4
600
3
1550
Trophic Level
2
17000
1
340000
O A. Daisy
B. Tiger
O C. Algae
O D. Squirrel
O E. Rabbit
Answer:
Explanation:
Which organisms are likely to be found in level 1 of this diagram? Select the
two correct answers.
4
600
3
1550
Trophic Level
2
17000
Algae are the primary producer in the trophic levels. Therefore, option "C" is correct.
What are tropic levels?Tropic levels are the levels or steps in the food chain. In tropic levels, the energy is transferred to different levels through food produced by the lower levels. The source of nutrition varies in different food chains.
There are four types of tropic levels, first primary producers are the autotrophs which produce their own food. Second, are herbivores which consume the autotrophs also called primary consumers. Third are secondary consumers who are carnivores and fourth are the tertiary consumers who are also carnivores.
example: sun, plants, deer, and tigers.
Tropic levels play a key role in understanding the flow of energy.
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50 POINTS!!!! The following diagram shows the branching tree for four kingdoms and some of their shared derived characteristics.
What shared characteristic can be written at point X? Use complete sentences to explain your answer.
Answer:
Heterotrophs
Explanation:
Protists, plants, fungi and animals alike have heterotrophic cells. This meaning they depend on organic molecules for energy as opposed to plants that can make their food from abiotic factors.
explain the role bacteria play in a human body?
Answer:
The bacteria in our bodies help degrade the food we eat, help make nutrients available to us and neutralize toxins,
Explanation:
V.O.C is the acronym for ___________________.
A: Very original components
B: Vast open containers
C: Violently oxidizing chemicals
D: Viotile organic compounds
Answer:
D
Explanation:
volatile organic compound