Which structures are least likely to appear in the same eukaryotic cell?
A. mitochondria and chloroplasts
B. ribosomes and mitochondria
C. a cell wall and chloroplasts
D. small vacuoles and a cell wall
Answer:
D. small vacuoles and a cell wall
Explanation:
Small vacuoles are found in animals, while cell walls are found in plant cells. Although plant and animal cells are both eukaryotic, the question asks if they would appear in the same cell which they would not.
Which statement describes the best evidence that two species share a recent common ancestor?
A) The species are about the same size.
B) The species eat the same type of food.
C) The species live in the same ecosystem.
D) The species have similar DNA sequences.
Answer:
I hope this helps you :)
Explanation:
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 (e.g., in the DNA sequence of genes) can be used to determine species' relatedness.
The statement that describes the best evidence that two species share a recent common ancestor is that the species have similar DNA sequences, which is present in Option D, as the DNA is the genetic material.
What role does the DNA sequence play in evolution?DNA sequence comparisons have become an increasingly important tool in determining evolutionary relationships between organisms, and after comparing the DNA sequences of different organisms, scientists can determine the degree of similarity between them such as similarities in size, diet, or ecosystem may indicate some degree of similarity between two species, but they do not necessarily provide evidence for a recent common ancestor.
Hence, the statement that describes the best evidence that two species share a recent common ancestor is that the species have similar DNA sequences, which is present in Option D.
Learn more about the DNA sequence in evolution here.
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Please help me answer these two questions. Thanks
Answer:
2nd Answer: Animal would not be able to dive as long
The seal
Explanation:
Please give me BRAINLIEST and THANKS lol <(￣︶￣)>
Which of the following types of power does not use a turbine to generate
electricity?
O A. Wind
B. Nuclear
C. Coal
O D. Solar
D. Solar
Explanation:
Solar converts sunlight directly into electricity without the need of a turbine
Solar does not use a turbine to generate electricity. Therefore, option (D) is correct.
What is Solar power?
Solar power is a renewable and sustainable energy source that generates electricity by harnessing the energy from the sun. It is a clean energy alternative to fossil fuels, as it does not produce harmful emissions or pollutants that contribute to climate change.
Solar power systems use photovoltaic (PV) cells, which convert sunlight into direct current (DC) electricity. An inverter then converts the DC electricity into alternating current (AC) electricity that can be used in homes and businesses.
Solar power is becoming more affordable and accessible, and many governments around the world offer incentives to encourage the installation of solar panels. The growth of solar power has the potential to reduce greenhouse gas emissions, create jobs, and provide energy access to remote communities.
Learn more about solar power, here:
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the process by which the characteristics of a species change over many generations in response to the environment
variation
variation
adaptation
adaptation
natural selection
natural selection
Evolution
Putrescine and cadaverine are short aliphatic diamine compounds produced during the breakdown of amino acids in both living and dead organisms. What tests, including solubility, would you run in order to confirm their structure
Answer:
In order to confirm the structure of Aliphatic Diamine Compounds, you'd need to run a set of tests. They are:
A. Preliminary or Initial Tests:
I. Tests for Physical Traits: this helps to determine or establish the physical traits of the substance. Characteristics such as State of Matter (e.g. solid, liquid) color, and odor.
II. Ignition test. This involves the application of heat on a minuscule amount of the compound or substance using a metal spatula. This helps to prove whether the compound is aliphatic or aromatic. An aliphatic compound such as methylated spirit is aliphatic because it produces a luminous flame. Vegetable Oil on the other hand is aromatic because it produces a sooty flame.
B. Physical Constants
This test aims to establish the boiling and melting points of such a substance.
C. Analysis for elements present
D. Solubility tests
Explanation
Amine compounds are easily distinguishable by their odors. Amine odors have a somewhat fishy almost putrid quality.
When they are at room temperature, they are present as gases and can easily evaporate in their liquid state.
Their relative densities are lower than that of water. with the exception of aromatic amines.
Cheers
The genetic researchers at Bay Medical Company are interested in spiders with the trait for medium silk flexibility. They
think this sik can be used for medical purposes such as for making stitches and for creating artificial tendons. Why do
you think offspring B has the medium silk flexibility trait?
Answer:
Due to similar shape.
Explanation:
I think offspring B has the medium silk flexibility trait because this offspring B is identical to the spider that is responsible for medium silk flexibility trait. There are some offspring identical to male parent spider due to the presence of dominant allele whereas very littles number of offspring is similar in appearance with the female spider due to recessive allele. If the male spider has medium silk flexibility trait so more number of offspring has medium silk flexibility trait as compared to others.
The people at the Medical research bay company are researching on spiders. the trait for the medium silk flexibility. The silk can be used for medical purposes and creating other tendons.
The B offspring has the medium flexibility trait it's identical to the spider that is responsible for the medium silk flexibility trait. There are some offspring identical to male parent spider due to the presence of dominant allele spider due to recessive allele.Learn more about the medical Company are interested in spiders.
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Which of the following types of cells have cell walls?
A. Red Blood Cell
B. Nerve Cell
C. Cork Cell
D. Animal Cells
Answer:
cork cells
Explanation:
A cork cell has a cell wall that has a waxy substance that is impermeable to gases and water called suberin.
Help plsssss asapppppppp
1.What we call the maintenances of constant internal environment of organisms? __________________________
2. Animals which control their body temperature at constant state regardless the changes of external temperature are known as ______________
3. What is the organ in our body which is used as an excretory organ and also used as an organ of osmoregulation?
________________
4. What is the part of the kidney from which urine is taken through the ureter?
_____________________
5. The structural and functional units of the kidney is _______________________.
Answer:
1. homeostasis.
2.Endotherm (warm-blooded animals).
3.kidneys
4.renal pelvis
5.nephron.
Why do organisms die if they do not have enough water?
Answer:
Organisms need water for the following activities: (1) All cellular processes occur due to water. (2) Transportation of substances in our body takes place by dissolving in water. (3) Terrestrial animals require fresh water for transportation of minerals and for getting rid of waste from their body.
Explanation:
Without water they cant do any of this.
Answer:
Cells will lose water and the chemical reactions take place in water. Without enough water, this can't happen.Explanation:
Which of the following is a consumer? *
1 point
Seed
Grass
Insect
Fruit
HELP ME PLESE NEED IT BY TODAY WILL GIVE U 10PIONTS HELPPPPPPPPPPPP
Insect is the answer.
.. .. ..
I need help to make an acronym with these words( WILL GIVE MOST BRAINILIST)
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
like, for example, "please excuse my dear aunt sally"
(parenthesis, exponents, multiplication, division, addition, subtraction.
Answer:
Dear kate please call our friend gary sarah
All the following are part of photosynthesis except:
Group of answer choices
Transforms solar energy into chemical energy
Plants, algae and cyanobacteria can do it
Helps in making protein building blocks
Producers that are fed to consumers
The levels of organization in living things are cell, tissue, organ,
and organs-system. What level of organization is each layer - the
epidermis, palisade layer, spongy layer? __ . The entire
leaf would then be considered to be a__.
HELP PLEASE!!!
Answer:
An ion with a -2 charge, atomic number 17, an atomic mass of 25 has how many electrons?
Explanation:
Transplration is the process by which _______.
plants add water to the atmosphere
animals break down food into energy
plants break down food into energy
plants make food. Please answer fast
Answer:
plants add water to the atmosphere
Explanation:
transpiration is the loss of water from the plants in the form of water vapors ... so that way...
Answer:
Plants add water to the atmosphere
Explanation:
Water is given out as vapour into the air
How will your community handle solid wastes that can be recycled?
Answer:
making it into fertilizer
Explanation:
[8 points]
April is a new photographer excited about her first time out on assignment. She is accompanying a wildlife photographer on a trip to capture the cute puffins found on the barrier Islands off the coast of Ireland. April tells her new boss that she would love to catch a photo of one of the puffins on a nest with a chick. April's boss smiles but tells her that she will have to take what she can get. Which sentence describes the challenge that April will MOST LIKELY face?
A. Wild animals are not easy to photograph.
B. wild animals move around constantly.
c. Wild animals won't like being positioned.
D. wild animals are not easy to find.
Answer:
B
Explanation:
Most wild animals don't like to stay confined in one place, they like to move, you know how when they get captured they move around in their cage a lot.
This category of endangerment has so few individual survivors that the species could soon become extinct:
A. Invasive species
B. Threatened species
C. Endangered species
D. Endemic species
E. Red list species
Answer:
Endangered Species
Explanation:
C. Endangered species
1. How is the goal of evolutionary classification dif-
ferent from Linnaean classification?
Answer:
The goal of evolutionary classification is to group species into larger categories that reflect lines of evolutionary descent, rather than overall similarities. The goal of linnaean classification is to group species into larger categories based on physical characteristics.
13. The cell membrane is made of a _________________________.
Forests provide which of the following?
1. Fuel
II. Oxygen
III. Habitat
Answer:
Well everywhere on earth contains oxygen. A forest is a habitat. So oxygen.
Beginning your introduction to your research paper with a question is a great way to capture the reader's interest.
True
False
Answer:
True
Explanation:
Yes it is since it intrigues to reader to go deeper into your research paper. In addition, it also gives you good dialoge for what you write/say next.
Plz help me well mark brainliest if you are correct!
Answer:
Its A. satellite :)
Explanation:
Which label belongs in the area marked Y?
A. Neither allele is dominant.
B. An intermediate phenotype is expressed in offspring
C. One allele is dominant over the other.
D. Both dominant alleles are fully expressed in offspring Y
Answer:
the answer is A
Explanation:
What two features do
geologists use to classify
crystals?
You would expect a cell with extensive Golgi apparatus to
Answer:
secrete a lot of material.
Which statement provides the best argument against making major changes to the atmosphere to help protect Earth’s resources? There will be less soil and dust in the air as construction increases. The atmosphere will improve as more people move to large cities. Making major changes to the atmosphere can be a costly process. It is more important to protect land and water resources than the atmosphere.
The answer is C. Making major changes to the atmosphere can be a costly process
Explanation:
Making major changes to the atmosphere can be a costly process.
The atmosphere refers to the layer of thin gases that lie above the surface of the earth. Plants and animals depend on the atmosphere for survival because it is region in which gaseous exchange takes place.
Changes to the atmosphere is very costly because it involves changes such as alteration in the kind of cars that are used and devising of alternative sources of energy etc. All these are expensive adventures.
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Some of the stars you see in the night sky are already gone. Why is it possible to still see their light?
Answer:
they are light years away
Explanation:
when you look at the sky you are looking at about 6 million years in the past because time travels differently between space and our atmosphere. That's why astronauts can feel like they have been gone for 3 days but really for 3 months.
Key point:
Light travels differently between space and Earth
When plants that are true breeding for different traits of a
characteristic are crossed, the trait observed in the first generation
is called the
a. dominant trait.
b. recessive trait.
c first-generation trait.
d. second-generation trait.
2. Which country began studies on bioterrorist weapons in the 1930s? What
was the program known as? How did other countries respond to this?
3. Why is plague attractive as a bioterrorism weapon?
4. How did the English use smallpox during the French and Indian War?
5. Which country loaded botulism toxins into bombs? Why is botulism of less
concern than anthrax or plague?
6. What animal is tularemia most associated with? How can humans become
infected? In what ways might it be transferred to humans as a bioterrorism
weapon?
7. Why do you think countries or groups might use these diseases as
bioterrorist weapons? What advantages would they have over other types
Answer:
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Explanation:
nsnsjsjshe