Answer:
True
Explanation:
No need to skip
____ is the process of cell division that results in the formation of cells with half of the usual number of chromosome?
Answer:
I think
the answer is meiosis
Explanation:
Have a great day
In the oceans on either side of the Isthmus of Panama are 30 species of snapping shrimp, 15 species on the Pacific side and 15 different species on the Atlantic side. Species live at different water depths. Morphological and genetic data show that Atlantic and Pacific species that live at similar depths are sister species. Geological evidence indicates that the Isthmus of Panama started rising about 10 million years ago and the oceans were completely separated by the isthmus about 3 million years ago. If the isthmus indeed formed gradually, which of the following patterns of genetic differences is most likely in these species pairs?
A) similar percentages of difference in DNA sequences between all pairs of sister species
B) greater percentage of difference in DNA sequences between sister species that inhabit deep water than between sister species that inhabit shallow water
C) greater percentage of difference in DNA sequences between sister species that inhabit shallow water than between sister species that inhabit deep water
D) greater percentage of difference in DNA sequences among Atlantic species than among Pacific species
Answer:
B) greater percentage of difference in DNA sequences between sister species that inhabit deep water than between sister species that inhabit shallow water
Explanation:
The isthmus formed gradually. About 10 million years ago, the isthmus began to separate the waters from the bottom, and snapping shrimp individuals inhabiting the deepness were separated for the first time. Since their separation, both groups evolved according to their new environment and the pressures acting on them. They started to gradually differentiate from each other, probably suffering many mutations through the years.
About 3 million years ago, the oceans were completely separated by the isthmus, meaning that those animals inhabiting the shallowest areas were the last ones to separate from each other on each side of the isthmus. Since then, they probably also suffered many mutations that drove them to differentiation.
However, as animals inhabiting the shallowest areas were the last ones to separate and, considering the time-lapse between both divergences, the highest degree of genetic difference is expressed by the sister groups inhabiting the deepest areas. Being separated from each other for a much longer time than shallow animals gave them more time to suffer more mutations and differentiate more.
The sister species at the depth of the ocean possesses a greater difference as compared to the sister species in shallow regions. Thus, option B is correct.
Evolution is the process of inheritable changes in the species with natural selection. The species in the close generation have a higher level of similarity in the traits.
What is the relation between the sister species?The sister species are the ones with the similarity in the traits. Thus, have the same ancestors and exhibit a greater percentage of trait similarity.
Atlantic and Pacific species are sister species and have similarities in the DNA sequence.
The isthmus separation is formed later in the ocean. The species present at the deeper range are older and are evolved. The species in the shallow region have less evolution as they are separated later.
Thus, the sister species at the depth of the ocean possesses a greater difference as compared to the sister species in shallow regions. Thus, option B is correct.
Learn more about evolution, here:
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You gain health benefits from exercising for a minimum of
a 10 minutes three times a week
b. 10 minutes two times a week
C 20 minutes three times a week
d. 20 minutes two times a week
Please select the best answer from the choices provided
O O O O
ооо »
Answer:
c. 20 minutes three times a week
Explanation:
Exercising is very important, becuase it improves your health and reduce the risk of developing several diabetes, cancer and many other terrible other effects. Physical activity and exercise can have immediate and long-term health benefits. Regular activity can improve your quality of life.
Go out and exercise! Even if it's just yoga!
Hope this really helps!
Answer:
C.20 Minutes Two Times A Week
Explanation:
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Cells Unit Test 705
01:04:11
KAYLEN HAWKINS
QUESTION 17
Endocytosis relies on which two organelles to move molecules into the
cell?
Cell membrane and vesicle
Cell membrane and cell wall
Mitochondria and vesicle
4
Mitochondria and cell membrane
Answer:
Cell membrane and vesicle
Which of the following tropisms are the
same as geotropism?
a. thigmotropism
b. hydrotropism
c. phototropism
d. gravitropism
Answer:
d
Explanation:
d.gravitropism as it's both going downwards
Which is NOT a function of the stem in plants?
Answer:
abortion of water from the soil
Explanation:
Answer:
Absorption of water from soil
Explanation:
That's what the roots do :)
A group of students used this diagram to classify three organisms into different kingdoms which table identifies the three kingdoms
Answer:
Answer is c. fungi, protista and plantea
After the pocket of magma slowly cools, what does the magma become?
A. Intrusive igneous rock
B. Extrusive igneous rock
C. Sedimentary rock
D. Metamorphic rock
Answer:
When magma slowly cools,it becomes an igneous Rock
Explanation:
An intrusive igneous rock is when magma is trapped far down in earth.
Extrusive igneous rock is formed when exits and cools above the surface of earth.
B. Exercises
Exercise 1 True or False
Directions: Write Tif the statement is TRUE and Fif the statement is FALSE in your
answer
sheet.
1. T The installation of pipe is plumbing.
Steel piping is designed for a long list of applications.
3. Cutting Tools used in measuring number relating the item under study and the referenced
unit of measurement.
Measuring tools help hand tools and power tools work together, especially important for the
variety of drilling tasks that get done in woodworking.
5. Holding Tools used for holding firmly any material that has to be cut.
6. Indicates the quantity and unit of materials still available in the stockroom is the Balance on
Hand.
7. Unit writes the unit of measuring quantity.
8. A price of material per piece or per unit is Unit Price.
9. The one who signed a signature in a borrower's slip is a borrower.
10. Job Order is not workings sheet that server as a complete guide of the student to a certain
task to be done.
11. Materials and tools are not in accordance with specifications.
12. Check the tools with accessories. See to it that nothing is missing.
13. Check if the materials and tools are of correct specifications,
14. Get replacements for those unreturned materials or tools.
15. Take the issued materials and tools to the workplace.
Answer:
True
Explanation:
exercise can out use food is bad thing in body work smell feeling bad out anut
“Friendly" microbes secure a place to live and grow,
keeping less friendly microbes from taking control.
Is this an example of mutualism or not?
Answer:
yes because this positivley affectz both friendly microbes
how do genes create traits in a organism
Answer:
Like chromosomes, genes also come in pairs. Each of your parents has two copies of each of their genes, and each parent passes along just one copy to make up the genes you have. Genes that are passed on to you determine many of your traits, such as your hair color and skin color.
is this what you are looking for
Which of the following does not provide new genetic combinations?
What would the complementary strand of GTCCGTAACGTAT be?
Answer:
CAGGCATTGCATA
Explanation:
Given: GTCCGTAACGTAT
Under Chargaff's rule, Adentine is equal to Thymine, and Cytosine is equal to Guanine. (A=T, C=G)
What enzyme is needed to synthesize DNA by adding nucleotides to DNA that are complementary to the template?
A)
helicase
B)
nuclease
topoisomerase
D)
DNA polymerase
Answer:D
Explanation:
Seems right to me
Answer: DNA Polymerase
Explanation: DID IT ON USATP
Help me answer this biology question Urgent
Answer:
1) Producers
2) Photosynthesis
3) Consumers
4) Herbivores
5) Carnivores
6) Decomposers
Explanation:
Which of the following statements about cell respiration is true?
A In the electron transport chain, Oz is converted to CO2.
B Glycolysis splits sugar to produce pyruvate and FADH2-
C Electrons leave the electron transport chain in a molecule of water (H20).
D
Both B and C are correct.
The statement which is true about cell respiration is; Choice B: Glycolysis splits sugar to produce pyruvate and FADH2-
Definition of terms:
Cellular respiration is a process used by all living organisms to convert glucose into energy.
Cellular respiration is a collection of three unique metabolic pathways: glycolysis, pyruvate oxidation, the citric acid cycle, and the electron transport chain.
Glycolysis; This pathway is anaerobic and takes place in the cytoplasm of the cell. This pathway breaks down 1 glucose molecule and produces 2 pyruvate molecule. A process which releases FADH2- in the process.Pyruvate Oxidation: In eukaryotic cells, the mitochondria is the site of pyruvate oxidation. The release of CO2 is a characteristic of this step.The Electron transport chain: The electron transport chain is the final component of aerobic respiration and is the only portion of glucose metabolism that uses atmospheric oxygen.Electrons are rapidly transferred from one component to the next to the endpoint of the chain, where the electrons reduce molecular oxygen, O2 producing water in the process.
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write a paragraph to describe what happens to a population with each type of natural selection. Pleasseee I rlly need to turn this in to bring up my grade.
judging from the diagram, tropical cyclones are powered by
Answer:
Based on the diagram, tropical cyclones are powered by cold, high altitude air.
Describe at least two abiotic and two biotic factors found in this biome. (Desert Biome) How
do these abiotic factors interact with the biotic factors?
Abiotic: the sunlight and water.
Biotic: Plants and insects
Explanation:
Plants such as cactuses can absorb and conserve water in their roots and use the sunlight to grow taller
Insects such as Desert beetles can trap moisture in their thick exoskeletons so they are parched or burned by the sun. They sometimes bury themselves deep in the sand where it's cooler.
The abiotic factors in the desert help the biotic factors survive
CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION I WILL MARK YOU BRAINLIEST THANK YOU !!!
Answer:
Light
Explanation:
Why would a good light bulb produce these if its a good light bulb?
The boxer bunched his fingers into a fist and hit the bag as hard as he could.
1. YES
NO
The farmer placed a bunch of grapes on the table.
2. YES
NO
The florist bunched together a spray of roses to fit into the vase.
3. YES
NO
A bunch of kids raced down the beach and dove into the waves with their boogie
boards.
4. YES
NO
The Brady Bunch was a popular television show in the 70's.
5. YES
NO
At the karate demonstration, the instructor bunched his fingers together and broke
the block of wood.
6. YES
NO
The blankets were bunched up at the foot of the bed.
Answer:
1. bunched means to collect into a tight group
2. bunch means a group of (grapes)
3. bunched means to collect into a tight group
4. bunch means a group of (kids)
5. The Brady Bunch: Bunch is part of their name but it also means a group
6. bunched means to collect into a tight group
7. bunch means a group of (blankets)
Explanation:
Hope this helped, I'm not sure what the exact question is since you didn't put one but I assume you want to know if the word bunched is the same as something so I defined each one for you :)
ability of a cell to form the whole organism
Answer:
Totipotency
Explanation:
Totipotency can be regarded as
capability of single cell to divide,develop as well as to form differentiated cells in a living body. This could be found in Meristematic plant cells since they posses the ability to develop into complete plants. Totipotent cells can be formed during sexual and asexual reproduction and these could include spores and zygotes. Some organism can experience totipotency in the sense that cells can dedifferentiate as well as regaining totipotency. Instance of this is plant cutting which used in growing an entire plant.
Do natural hazards always become natural disasters? What are some things that people can do that might influence whether or not a natural hazard will become a natural disaster?
Answer:
SLLLW
Explanation:
The dispersal of food coloring in a beaker of water is an example of what process?
Answer:
this is an example of the process DIFFUSION
6. Calculate the kinetic energy of a baseball thrown by Aroldis Chapman, who holds the world record for fastest pitch. The baseball
has a mass of 0.145 kg and velocity of 47.0 m/s.
a. 3.40J
b. 320 J
c. 6.82 J
d. 160J
Answer:
D
Explanation:
=122
9.
Strand A would normally be found in the
A. plasma membrane
B. ribosome.
Yasuole
nucleus
Answer:
the Nucleus
Explanation:
The DNA molecule is genetic material that is-
A. found in the mitochondria, lysosomes, vacuoles, and ribosomes
B.Composed of adenine, uracil, guanine, and cytosine
C. The building block of cellular chromosomes
Really need help
Answer:
C Building block of cellular chromosomes
What does this model represent
amount of force times the distance it moves an object
Answer:
Work
Explanation:
Work=Force*Distance
Note: this is physics, not biology
Please Help! What change do we get in membrane potential as a result of acetylcholine binding to nicotinic receptors on skeletal muscle cells?
Depolarization or Hyperpolarization