Answer: 44 chromosomes
Explanation:
Answer:
"The reproductive cells of a dolphin each contain 22 chromosomes."
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Can someone help me ASAP??
Answer:
c
Explanation:
Explain the difference between mitosis and meiosis.
Answer:
Mitosis involves the division of body cells, while meiosis involves the division of sex cells. The division of a cell occurs once in mitosis but twice in meiosis. Two daughter cells are produced after mitosis and cytoplasmic division, while four daughter cells are produced after meiosis
Explanation:
hope it hepl u
Which of the following is true of biogeochemical cycles?
Choose 1 answers
They ensure that nutrients are only used once by organisms.
They increase the total amount of matter over time.
They can be affected by human activity,
They create new atoms to replace lost ones.
Answer: They can be affected by human activity.
Explanation:
Answer:
a
Explanation:
i got it right
what is respiration and the different types
Answer:
It involves inhalation and exhalation of gases. Internal respiration involves gas exchange between the blood and body cells. Cellular respiration involves the conversion of food to energy. Aerobic respiration is a cellular respiration that requires oxygen while anaerobic respiration does not.
Which of the following is not true about ocean acidification?
A) caused by excessive CO2 in the atmosphere
B) it decreases concentration of CO32- needed for marine life shell formation
C) caused by flooding
D it is caused by decreased pH
Answer:
C
Explanation:
edg2021
Which mutation scenario will always lead to natural selection?(1 point) A. a mutation causes a specific advantage within the population B. a mutation causes an inactivated gene to be reactivated C. a mutation causes a specific variation within the population D. a mutation causes a gene to become inactivated
A mutation scenario that will lead to natural selection is one that causes a specific variation within the population. Thus, the correct option for this question is C.
What is Mutation?A mutation may be defined as a type of process that significantly involves sudden, stable, and inheritable changes in the genetic material of an organism. The organism that undergoes mutation is called a mutant. The agent of mutation is called mutagen.
According to the context of this question, the process of mutation never causes a positive influence on the organisms, but with respect to time organisms become adapted or habitual.
A Mutation may be random and spontaneous so, it does not always involve an inactivated gene being reactivated. It sometimes involves the introduction of a new gene that facilitates specific functions.
Therefore, a mutation causes a specific variation within the population is a mutation scenario that will lead to natural selection. Thus, the correct option for this question is C.
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name three properties that are similar to both monosaccharides and disaccharides
Answer:
Glucose ,Fructose ,Ribose ,- monosaccharide..They have Carbon atoms 3 to 6 .They will not be further simplified
Sucrose-disaccharide firmed by Glucose and fructose .Two hexose sugar united together by glucoside linkage by the elimination of one water molecule.Glucose is aldalose having CHO aldehyde group and fructose is Ketose having C=O keto group sugar both are having same embrical formulae but different structural formulae
Lactose is a disaccharide glucose+glucose by glycoside linkage
Maltose
Glucose +glucose
On hydrolysis yields two monosaccharides
Explanation:
If you cross an AAbb individual with an aabb individual, what will the genotype ratio be in the next generation? What will be the phenotype ratio?
Answer:
Genotype of offspring = Aabb
Genotype ratio will be 100 % as all the offspring will have the same genotype
Phenotypic ratio = 100% all the offspring will have the same phenotype
Explanation:
Genotype of First parent - AAbb
Genotype of Second Parent - aabb
Gamete of first parent - Ab, Ab, Ab, Ab
Gamete of second parent - ab, ab, ab, ab
All the offspring will have genotype Aabb
Phenotypic ratio = 100% all the offspring will have the same phenotype
This illustration shows the flexion of the elbow joint. Identify two body systems that play a role in this action, and describe how they work together to flex the elbow.
The two body systems that play a role in the action is
Muscular systemSkeletal system Flexion of the elbow jointGenerally, the flexion of the elbow joint is anchored by two man bodily systems these are
The muscular system(muscular system is dedicated to the movement of the human body) The skeletal system( responsible to hold the proper-structure of the body) .Therefore,two body systems that play a role in the action is
Muscular system Skeletal systemFor more information on Nerves
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In which part of the water cycle is water getting the MOST energy from the sun?
Answer:
Evaporation
Explanation:
Cause then sun evaporates the water and turns them to water vapor which turns into clouds which then the clouds release the water if there is to much water in them and then the cycle keeps on going on and on
:D
Which of the following statements are true?
A All compounds are molecules, but not all molecules are compounds.
B All molecules are compounds, but not all compounds are molecules.
Something is either a compound or molecule, it can never be both.
D
Molecules and compounds mean the same exact thing.
Answer:
I think A is true
Explanation:
Any combination of atoms is a molecule, but when its a combination of atoms from different elements, its known as a compound.
Which of these is an example of a trace fossil?
A
skin
B
dung
С
a leaf
D
a skull
if the DNA sequence of a gene was TACTTACCGAGCTAGACT, then what is the sequence of the messenger RNA
Answer:
AUG AUG GCU CGA UCU GA
Explanation:
what is the probability for a child to inherit one of the two alleles from her dad??
a: 100%
b: 50%
c: 0%
d: impossible to know
Answer:
A: 100%
Explanation:
We get one allele from each parent, one from mom and one from dad. Hope it helps :)
2. Is the following sentence true or false? As a cell increases in size, it usually makes extra copies
of its DNA.
Answer:
false
Explanation:
Darwin's theory of evolution did NOT contain the concept that
O favorable traits are passed from one generation to the next.
O resources are unlimited in environments.
genetic variations are produced by mutations and sexual recombination.
organisms that are best adapted to their environment survive
Answer:
favorable traits are passed from one generation to another
Explanation:
gftyfngfwfqwfrr3r23
A simplified forest food web is shown here for a temperate, deciduous forest biome. Predict which species would see the greatest
decline in energy availability if a pesticide removed the majority of the squirrel population
Answer:
the foxes will see the greatest decrease in energy as the squirrels are their only prey.
Explanation:
just did it on usa test prep
In food web, foxes would see the greatest decline in energy availability if a pesticide removed the majority of the squirrel population.
What do you mean by food web?A food web is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community. Another name for food web is consumer-resource system.
Food web is an important conceptual tool for illustrating the feeding relationships among species within a community, revealing species interactions and community structure, and understanding the dynamics of energy transfer in an ecosystem.
A food web consists of many food chains. A food chain only follows just one path as animals find food. Example- A hawk eats a snake, which has eaten a frog, which has eaten a grasshopper, which has eaten grass.
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Which RNA base bonds with adenine
Answer:
Three of the four nitrogenous bases that make up RNA — adenine (A), cytosine (C), and guanine (G) — are also found in DNA. In RNA, however, a base called uracil (U) replaces thymine (T) as the complementary nucleotide to adenine
Explanation:
Which of the following would be considered part of an emerald tree boa's ecological niche? Select all that apply. mating ritual inhabiting the tree canopy humans eating birds
Answer:
Eating Birds, and Inhabiting the tree canopy are the answers
Explanation:
ANSWER ASAP!! Which type of selection occurs when a population experiences a shift in diversity toward the larger organisms?
1. stabilizing selection
2. directional selection
3. disruptive selection
4. adaptive selection
Answer:
2
Explanation:
edge 2021
The type of selection that occurs when a population experiences a shift in diversity toward the larger organisms is a directional selection.
What is a selection?It is a phenomenon by which some organisms have better advantage at surviving than the others of the same species.These organisms prevail and are reproductively more successful than the others.What is a directional selection?It is the type of selection in which an extreme phenotype is selected and the rest are at a disadvantage."The allele frequency is shifted in the direction of that phenotype.What is a disruptive selection?It is the type of selection in which both the extreme phenotypes are favored than the others.
What is a stabilizing selection?It is the opposite of directional selection.In this the mean phenotype is selected and the extreme phenotypes are not.To learn more about phenotypes, selection, directional selection and population here,
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What type of chemical bond exists between two water molecules
Hydrogen bonds, type of chemical bond exists between two water molecules.
What is a chemical bond?A chemical bond is what binds atoms in molecules together. Electrical forces between positive charge atomic nuclei and negative-charged electrons form bonds. A chemical bond is a long-lasting attraction between ions or atoms that allows molecules and crystals to form.
Hydrogen bonds arise between neighboring water molecules' hydrogen and oxygen atoms. A hydrogen bond is formed by the attraction of individual water molecules. A water molecule is made up of two hydrogen and oxygen atoms atom, with one partly positive hydrogen atom connected to a more highly electronegative atom.
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Your question is incomplete, but most probably the full question was.
A) ionic bondsB) hydrogen bondsC) covalent bondsD) valence bondshow do Asian elephant move
Answer:
QUESTION:
how do Asian elephant move
ANSWER:
https://www.nationalgeographic.com/animals/mammals/facts/asian-elephant
Explanation:
Hope that this helps you out! :)
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A student was asked to prepare a model of the rock cycle as it moves matter slowly through the Earth. The student creates a model,
as shown here. In order to revise the model, how should the lettered components be modified in order to create an accurate model?
Select all choices that apply
es )
A)
Letter A should represent igneous rock that is extruded from magma,
B)
Letters A and B should both be igneous rock, which is found near the
Earth's surface.
C)
Letters and B should be sedimentary rock, which is found under layers of
other materials
D)
Letter C should represent metamorphic rock which changes composition
under heat and pressure.
E)
Letter B should represent sedimentary rock that is buried by layers of sand
and deposited material.
Answer:
A) Letter A should represent igneous rock that is extruded from magma.
D) Letter C should represent metamorphic rock which changes composition under heat and pressure.
E) Letter B should represent sedimentary rock that is buried by layers of sand and deposited material.
Explanation:
Igneous rock comes from magma/lava. Sedimentary rock is buried as layers are deposited. The metamorphic rock is formed when one type of rock changes from one form to another. The single letter options are all right here.
The Rock Cycle is related to transformation of three basic Rock types into one another through the Plate tectonic activity, along with weathering and erosional processes. Hence Correct options are A, D, and E.
The Rock CycleIt is a phenomenon through which three basic types of Rock transformed into one another. These three types of Rock are Igneous, Metamorphic, and Sedimentary rocks.
Therefore, to prepare a model which shows Rock Cycle, student need to have three types of Rock as mentioned in option A, D, and E.
A) Letter A should represent igneous rock that is extruded from magma.
D) Letter C should represent metamorphic rock which changes composition under heat and pressure.
E) Letter B should represent sedimentary rock that is buried by layers of sand and deposited material.
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C. What is the genotype for patchwork fish?
2. What happens if you breed a patchwork fish with a fish that only has Blue Scales
a. What is the probability of having fish with red scales?
b. What is the probability of having fish with patchwork scales
P
R_
B_
BS
_R_
3. Two patchwork fish are crossed. What is the probability that they will have patchwork fish?
Answer:
c. Bb
2-a. 0%
2b. 50%
3. 50%
Explanation:
What is true of the most recent ice age?
O A. It made the dinosaurs extinct.
OB. The continents were much closer together than they are now.
O c. It occurred during the Mesozoic era.
O D. Sea levels were 300 feet lower than they are now.
Which of the following energy producing methods can sometimes lead to riverbed erosion?
A. Solar
b. wind
c. hydroelectric
d. geothermal
The energy-producing methods that can sometimes lead to riverbed erosion is hydroelectric energy.
Which energy sources does not produce carbon dioxide?The renewable energy originates from carbon-free. This refers that they do not emit any carbon dioxide when they yield energy.
Solar, wind, and hydroelectric are carbon-free.
Thus, option "C" is correct, a form of energy that develop the power of water in action.
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Answer:
C. hydroelectric
Explanation:
hope this helps :)
Blue poppies native to China were grown at a plant-breeding center in California. The plants with the thickest leaves were most likely to survive and reproduce in the drier climate. After several generations, the percentage of thick-leaved plants had increased by 42%. This adaptation of the poppies to their new environment is due to _____. See Concept 23.4 (Page 495) Blue poppies native to China were grown at a plant-breeding center in California. The plants with the thickest leaves were most likely to survive and reproduce in the drier climate. After several generations, the percentage of thick-leaved plants had increased by 42%. This adaptation of the poppies to their new environment is due to _____. See Concept 23.4 (Page 495) disruptive selection neutral variation directional selection genetic drift stabilizing selection
Answer:
directional selection
Explanation:
Directional selection is a type of natural selection where individuals exhibiting an extreme phenotype for a given trait are favored over the mean or other extreme phenotype. This type of selection can lead to drastic and fast changes in allele frequencies between generations in a population, being particularly important in speciation processes. Directional selection is common under environmental changing conditions (e.g., weather, climate, food availability, etc) or when individuals migrate to other regions in order to adapt to new environmental pressures.
What can make someone feel good, feel bad, and sometimes both?
saying good things like your so smart and your an angle and saying bad is your a devil
Answer:
eating, studying, taking care of yourself, taking drugs, falling in love when its a wrong time for it, being mean to parents
Explanation:
Which of the following is something almost everyone can do to reduce his or
her carbon footprint?
O A. Take warmer showers. .
B. Turn off the lights when leaving the room.
O C. Cook with the oven more often.
D. Use the fireplace when a house is cold.
SUBMIT
Why was the geocentric model of the solar system accepted by scientists for many years? Select the two correct answers.
A. The model described the solar system correctly.
B. The model accurately predicted the movements of the planets.
C. Suitable technology was not available to disprove the model.
D. Observations with telescopes confirmed the predictions made using the model.