Answer:
Homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations (beneficial features). Similarities and differences among biological molecules
Explanation:
There are multiple ways you can tell
you can look at the bone structure of an organism and see if it's homolougous
Or use a cladogram to tell what species share a common ancestor ( hope this helps)
reproductive process of amoeba
Reproductive process of amoeba
If you have a 15% salt water solution, how many grams of salt do you have if you have
50 ml of water
7.5 grams
05 grams
30 grams
15 grams
Answer:
7.5 grams
Explanation:
I took the Exam and this was correct.
How many ventricles does the heart contain?
Answer:
The heart has two ventricles
Explanation:
Which is the smallest part of an organism?
A. body tissue
B. organ system
C. organ
D. cell
Answer:
D. cell is the smallest part of an organism.
as cell is basic functional and structure of life.
If there is no external force on a moving object it will
Brown and White are codominant in Cows. A hetrozygote cow that has both brown and white spots is called a Roan Cow (BW). Cross two Roan cows together.
About the question:
I failed to find the complete question. However, in the following box, I will perform the cross and explain the results.
Answer and Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files
Explain ONE possibe advantage of vivipary when compared to
ovipary
Embryos are protected and physiologically maintained by the pregnant female.
Would appreciate if somebody helped please.
Answer:
its the last one
Explanation:
PLEASE HELP ME!!
A dam is built across a river to generate electricity. What is likely effect of the construction of a dam on the river?
a)increase in the size of fish in the river
b)increase in the water flow in the river
c)decrease in the population of aquatic organisms in the river
d)decrease in the amount of pollutants dumped into the river
Answer:
c i think
Explanation:
Most likely the effect of the construction of a dam on the river is that it decreases the population of aquatic organisms in the river. Thus, the correct option is C.
What is Population?A Population may be defined as the group of individuals significantly belonging to the same species living in the same area in a definite time period.
When a dam is built across a river in order to generate electricity, it results in the reduction of the population of aquatic organisms in the river.
This is because the whole construction affects the natural habitat of aquatic organisms as well as their adaptations. So, such populations are frightened due to external construction and do not play their essential roles.
Therefore, most likely the effect of the construction of a dam on the river is that it decreases the population of aquatic organisms in the river. Thus, the correct option is C.
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Help please- im still gonna keep wasting my points until someone helps i only have these 4 questions left man-
17. In Gregor Mendel's first experiment, he created a plant with purple flowers (PP , two dominant traits) with a plant with white flowers (pp , two recessive traits). What were the results of his experiment:
[tex]\left[\begin{array}{ccc}&P&P\\p&Pp&Pp\\p&Pp&Pp\end{array}\right][/tex]
a. 100% purple is your answer. Note that if there is a dominant trait, the dominant trait will show. In this case, purple is the dominant trait P, and is located on all quadrants, therefore 100% purple is your answer.
18. In Mendel's second experiment, he uses two purple flowers (Pp , one dominant, one recessive, each respectively). What were the result of his experiment:
[tex]\left[\begin{array}{ccc}&P&p\\P&PP&Pp\\p&Pp&pp\end{array}\right][/tex]
d. 75% purple, 25% white is your answer. The dominant trait P is found in three quadrants, with only the bottom right quadrant having two recessive trait p. This means that the quadrant with pp is white, and the others are purple.
19. Note that the Bob's dimples (DD) are the dominant trait, while Janet has the recessive traits (dd). Set the Punnett Square:
[tex]\left[\begin{array}{ccc}&D&D\\d&Dd&Dd\\d&Dd&Dd\end{array}\right][/tex]
d. 100%. In this case, the dominant trait shows up in all 4 quadrants, and will therefore mean that their child will have dimples. However, they will carry the recessive trait.
20. Matt and Meredith both have dominant brown eyes, but their daughter has blue eyes. This means that they both are carriers of a recessive blue strand (denoted by b.) This means that both Matt and Meredith are Bb. Set the Punnett Square:
[tex]\left[\begin{array}{ccc}&B&b\\B&BB&Bb\\b&Bb&bb\end{array}\right][/tex]
B) is your answer.
Fossils of the Dorudon, an aquatic mammal that lived over 40 million years ago, show a whale-like animal that had small underdeveloped hind limbs.
Which best explains how fossils like the Dorudon support the theory that plant and animal life has evolved over time? (SC 7.L.15.2
They confirm that many animals have not evolved
O They confirm that many animals have not evolved
ооо
They prove that all animals evolved from a single ancestor
They demonstrate that animals that don't evolve will die out
Answer:
??
Explanation:
What is the answer cuz i am doing to test rn
Answer:
they prove that animals evloved from a sinle anncestor
PLS VOTE BRAINLIEST
A scientific _______ is an explanation based on many observations by many different researchers.
A scientific _______ is usually an explanation based on one observation by one researcher.
A.
theory; hypothesis
B.
deduction; inference
C.
hypothesis; theory
D.
inference; deduction
Answer:
A
Theory
Hypothesis
I hope this helps
Which one is the true answer
Answer:
mantle core crust
Explanation:
Describe the importance of a hypothesis in scientific inquiry.
Answer:
the basic idea of a hypothesis is that there is no pre-determined outcome. ... A key function in this step in the scientific method is deriving predictions from the hypotheses about the results of future experiments, and then performing those experiments to see whether they support the predictions.
Explanation:
The following passage explains the relationship between tectonic plates and earthquakes. Which sentence states incorrect information?
Tectonic plates can push together, pull apart, or slide past each other at their boundaries. The edges of tectonic plates are not smooth, so they create friction as they move. When friction is too great for the plates to move, they can become stuck and pressure can build up. An earthquake occurs when pressure that has built up between plates suddenly is released. The buildup of pressure that leads to earthquakes only occurs at plate boundaries.
Answer:
earthquakes occur when the edges suddenly become unstuck and slip along a fault
Explanation:
The evaluation of the materials and energy used
for making, selling, using, and disposing of a
product is called a
__________________
Define the meaning of the phrase entry requirements to higher education institutions and state four reasons why knowing the entry requirements is important
Answer:
Requirements needed by the students for the admission.
Explanation:
Entry requirements refers to the requirement needed by the students for the admission in the college or university. Knowing entry requirements is important because the university allows only those students who are eligible for the course. It provides information about the criteria on which students are selected for the admission. Due to these requirements, the students work harder and do more study to achieve the requirements that is necessary for the admission. Knowing the entry requirements will help students to collect or achieve the necessary things.
1. How many mating pairs are illustrated in Model 1:
Answer:
24
Explanation:
24 mating pairs are illustrated in Model 1 .
There are 12 mating pairs which are illustrated in model 1.
What is a Mating pair?These are groups of organisms which are involved in reproduction over
a period of time. Some animals choose their mating pairs depending in the
season in which they copulate and produce offsprings.
In the model 1 given, we have a total of 24 animals which are grouped into
12 mating pairs which is why it's the most appropriate choice.
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identify the type of solution (Hypotonic, Isotonic and Hypertonic) in each of the beakers. Write your answers as A=..., B=..., C=...
Answer:
Beaker A= Isotonic
Beaker B = Hypotonic
Beaker C= Hypertonic
Explanation:
ISO means the same on each side.
Hypo means less.
Hyper means more.
Beaker A= Isotonic
Beaker B = Hypotonic
Beaker C= Hypertonic
what is the difference between Isotonic Hypotonic Hypertonic?Isotonic: Isotonic solutions are solutions having equal osmotic pressures.Hypotonic: Hypotonic solutions are solutions having lower osmotic pressures.Hypertonic: Hypertonic solutions are solutions having comparatively higher osmotic pressures.The main difference between isotonic hypotonic and hypertonic solutions is that isotonic solutions are solutions having equal osmotic pressures while hypotonic solutions are solutions having lower osmotic pressure and hypertonic solutions are solutions with high osmotic pressure.
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Which of the following substances is/are involved in
oxidative phosphorylation of cellular respiration?
Answer:
the answer will be
ADP
Oxygen
ATP
so its all the above
Explanation:
The substances involved in oxidative phosphorylation are the electron transport chain, oxygen, and ATP synthase.
The substances involved in oxidative phosphorylation of cellular respiration are:
Electron transport chain: It consists of a series of protein complexes located in the inner mitochondrial membrane. Electrons from carrier molecules, such as NADH and FADH2, are passed along the electron transport chain, resulting in the generation of a proton gradient.
Oxygen (O2): Oxygen acts as the final electron acceptor at the end of the electron transport chain. It combines with hydrogen ions to form water (H2O).
ATP synthase: This enzyme is located in the inner mitochondrial membrane and utilizes the energy from the proton gradient to generate ATP through the process of chemiosmosis.
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After the removal of the sea stars,
the number of species in the ecosystem was reduced.
the ecosystem became more diverse.
food webs in the ecosystem became more complex.
the size of the ecosystem was reduced.
I believe the food web in the ecosystem became more complex.
Table 1. Representative Animals and their Organs of the Digestive System
Selected Organ/s
Description/s
of the Digestive
System
Organisms
Name of
Representati
amoeba
1.
1.
2.
2.
planaria
1.
2.
1.
2.
Answer:
zucydrwesrdfdshwhra avdtc
The living organism found within an ecosystem
Answer:
The living organisms in an ecosystem can be divided into three categories: producers, consumers and decomposers. They are all important parts of an ecosystem. Producers are the green plants The third type of living organism in an ecosystem is the decomposers.
Explanation:
no
Hemostasis involves a complex chain of events, and any disorder that affects any individual clotting factor can disrupt the entire process. As a result, managing many clinical conditions involves controlling or manipulating the clotting process. Excessive coagulation can cause dangerous blood clot conditions such as the formation of an embolus and a thrombus. Inadequate coagulation is associated with disorders like hemophilia, an inherited disorder characterized by the inadequate production of clotting factors. About one person in 10,000 has hemophilia. What is the name of the formed element that is critical for initiating the formation of a blood clot
Answer:
Fibrin
Explanation:
The name of the element that is critical for initiating the formation of a blood clot is fibrin.
Fibrin is a fibrous, non-globular protein that is formed by the polymerization of fibrinogen as a result of the reaction with protease thrombin. The threads from fibrin form a network of fibers around the platelet plug at the area of damaged blood vessels in the process of injuries, thereby forming the initial clot.
How do mountains affect the climate of a region?
(giving brainlist)
Answer:
As context, there are two sides of a mountain range:
A) The windward side
B) The leeward side
As mountains are tall, they block clouds which are in the troposphere. All the moisture thus falls onto the windward side, while almost none of the moisture from the rain gets to the leeward side.
In a nutshell, mountain ranges create barriers for precipitation which blocks off moisture to the leeward side, creating deserts.
This is why you see mountain ranges near deserts.
Sophie visited Carlsbad Caverns with her family during her summer vacation, and she was amazed at the cave’s formations. She learned that the cave was formed from minerals.
Rearrange the phrases describing one of the ways minerals form into the correct order. Place the earliest stage of mineral formation at the top. Place the final stage at the bottom. (Write 1 2 3 or 4 in order)
1. a solution forms from a liquid and dissolved substances
2. a warm solution flows through a crack in the rocks there
3. elements and compounds leave as the solution cools
4. elements and compounds crystallize
BASICALLY SAY WHICH STEPS GO FIRST IN MINERAL FORMATIONS! PLESSS
Answer:
The ways through which the minerals form include the following order:
2. a warm solution flows through a crack in the rocks there
1. a solution forms from a liquid and dissolved substances
3. elements and compounds leave as the solution cools
4. elements and compounds crystallize
Explanation:
From the explanations above, it could be seen that a warm solution (most probably water) flows through the cracks in the rocks leading to dissolution of substances to form liquid. When the liquid cools, the elements leaves and crystallize as compounds.
Which of the following data would support the claim that the gravitational force
between objects depends on mass?
O An object's weight can change depending where it is on Earth.
O A rocket can escape Earth's gravity by traveling at high speed.
O The further a planet is away from the sun, the smaller the gravitational force.
O Gravitational force is stronger on more massive planets.
Answer:
D.
Explanation:
gravitational force of attraction is stronger on more massive planets such as Jupiter
Gravitational force is stronger on more massive planets, the claim that the gravitational force between objects depends on mass, hence option D is correct.
What is gravitational force?The force that pulls things toward the center of a planet or other body is called gravity. All the planets are kept in orbit around the solar by gravity.
Earth is subject to the same gravity pull that you are. But your force doesn't really affect our globe because Earth is so much larger than you are.
In our world, gravity the moon is maintained in its circle around Earth by gravity, as are the planets in their orbits around the sun. The gravitational force is equivalent to your weight when you are at rest on or near the Earth's surface.
Therefore, gravitational force is stronger on more massive planets, hence option D is correct.
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what are two types of activators
Answer:
cofactors and coenzymes
..................
what are the different units of the geological time scale ?
eons,eras,periods,epochs,and ages
Explanation:
it subdivides all time into names of abstract time in decendung order of duration.
What happens at a tectonic plate boundary? A. Sea Floor Spreading Takes Place. B. An oceanic plate becomes a continental plate. C. Two Tectonic Plates interact with each other.
Answer:c i guess
Explanation: its a somewhat vague question tbh