Which of the following is an example of reproductive isolation? two populations of finches that cannot produce viable offspring two populations of finches that have different feather colors two populations of salamanders that live in different lakes two populations of salamanders that have different tail lengths
The correct answer is A. Two populations of finches that cannot produce viable offspring
Explanation:
Reproductive isolation is a biological and evolutionary phenomenon that prevents two species from successfully reproducing, this means they cannot produce offspring or the offspring is not fertile, even if these species had a common ancestor. Additionally, as a result of reproductive isolation, each species keeps its genes and features. This phenomenon is best exemplified in "Two populations of finches that cannot produce viable offspring " because this refer to the barriers for different species to reproduce or produce viable offspring, which is the focus of reproductive isolation.
Answer:
A on edge
Explanation:
How many rounds of division are there when one cell in the testis becomes four sperm cells?
Answer:As a result of the two meiotic divisions, each primary spermatocyte produces four spermatids. During spermatogenesis there are two cellular divisions, but only one replication of DNA so that each spermatid has 23 chromosomes (haploid), one from each pair in the original primary spermatocyte
Explanation:
What happens to a population when its larger than the available resources can accommodate
Answer: They would die off.
Explanation:
simple .too many people would have to much of the resource used and then there would be no more resourses to use and the population would die off
What can plant fossils reveal about the area in which they are found? Question 3 options: A. The air pressure and ocean currents at the time the plant was living B. The type of animals that were present at the time the plant was living C. The types of rocks and minerals in the area at the time the plant was living D. The climate/temperature at the time the plant was living
Answer:
i think option B is correct answer because plants also gets nutrient from the animal so , there is more chance to get the information about the animals that were found in that area and time.
hope it helps..
True or false? Nutrient upwelling in marine ecosystems and a seasonal difference in water temperature of fresh water lakes helps to redistribute organisms ??!!!
Answer:
yes it is true :)
Modern day rockets were most influenced by the: use of nuclear fusion development of SCUBA creation of the telescope use of liquid fuel
Answer:
true
Explanation:
Categorize Different Foods Categorize the food items below by selecting which macromolecule they are known to contain. apple steak celery olive oil potato avocado egg
Answer:
The correct categorization of the listed food items would be:
Carbohydrate: apple, celery, potato
Protein: Steak, egg,
Fat: Olive oil, avocado.
The four major macromolecules are carbohydrates, proteins, lipids, and nucleic acids.
Foods like apple, celery, and potato are rich in carbohydrates.
Foods like chicken, meat, eggs, et cetera are rich in proteins.
Similarly, foods like olive oil, mustard oil, butter, et cetera are rich in fats or lipids.
Explanation:
Answer: apple- carb; steak- protein; celery- carb; olive oil- lipid; potato- carb; avocado- lipid; egg- protein
Explanation:
Fruit and veggies are mainly made of carbohydrates because that is the storage and structural components they use (think glucose, cellulose, starch, etc.); Steak is a meat, and meat is technically muscle- muscle is built from protein; Olive oil and avocado are lipids because they are considered fats; Egg is protein because it is an animal by-product, and contains many amino acids, which build up proteins.
How is the endosymbiotic theory used to support the emergence of eukaryota
Answer:
It involves a cooperative relationship between two cells
Explanation:
allow both to survive—and eventually led to the development of all life on Earth.
which is a reason that many organisms that have existed on Earth have left no fossils
ASAP What is a hypothesis? A. A type of syringe used in medicine. B. An explanation of scientific phenomena developed after experimentation. C. A guess. D. A proposed explanation based on observations, scientific knowledge or logic.
Answer:
The answer is D
Explanation:
3. Because plants don’t have interior or exterior skeletons, they rely on their cell walls to give them structural support. Did you see evidence of this cell structure in plants? How was it different from the animal cells (the blood cells, cardiac muscle, and skin)? 4.The paramecium was the only unicellular organism that Stella viewed through her microscope. All the other organisms were multicellular. How was the unicellular specimen different from the multicellular organisms? 6. Why do you think electron microscopes allow for greater magnification than compound microscopes?
Answer:
3. Plant cells are arranged in tight squares due to their cell walls and are filled with water. These characteristics give the plant a structural support.
which step is NOT involved in carbon cycle? a. decomposition b. fossilization c. respiration d. nitrification e. photosynthesis
Which specialized carbohydrate is used in shrimp exoskeletons?
Answer:
A specialized carbohydrate that is used for structure in shrimp is called chitin. Not only it is found in the shrimp cells, but also on other crustaceans such as crabs and lobsters. Chitin is a derivative of glucose and a characteristic element in the exoskeletons of crustaceans, cell walls of fungi, internal shells of squids and octopuses, and scales of fish.
Explanation:
The specialized carbohydrate that is used in shrimp exoskeletons is chitin.
An exoskeleton refers to an external skeleton that protects and supports the body of an animal. The specialized carbohydrate that is used in shrimp exoskeletons is chitin.
Chitin is a fibrous substance that's made up of polysaccharides. It's the major constituent in the exoskeleton of arthropods. Chitin can also be found in crustaceans. It is a derivative of glucose.
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Binary fission occurs in which of the following type of organsim?
Answer:
A. Prokaryotes like bacteria
Explanation:
Binary fission is a type of asexual reproduction (requiring only one organism, as opposed to sexual reproduction, which requires two) occurs when an organism itself splits into two - hence binary (bi- means two).
Binary fission occurs most often in prokaryotes; eukaryotes like plants and animals engage more in sexual reproduction because they are more complex.
The answer is thus A.
which is a non-medelian trait A) a trait with a dominant and recessive allele B) A trait with a clearly dominant form C) A trait with four alleles D) A trait controlled by one gene
Answer: The answer is C. A trait with four alleles.
Use the drop-down menus to label the parts of a
nucleotide.
Label A
Answer:
A- phosphate group
B- 5-carbon sugar
C- nitrogenous base (adenine is a purine, just in case)
D- nitrogenous base (uracil is only found in RNA)
E- 5-Carbon sugar
F- phosphate group
Explanation:
Answer:
what the guy above me said
Explanation:
because its true
What scientific knowledge about macromolecules is a direct result of Gerardus Johnannes Mulder’s 1838 discovery? All proteins contain carbon, hydrogen, oxygen, and nitrogen. All carbohydrates contain carbon, hydrogen, and oxygen. Nucleic acids are polymers with nucleotide monomers. The helical structure of DNA is essential for protein production.
Answer:
All proteins contain carbon, hydrogen, oxygen, and nitrogen.
Explanation:
edge
As per the Gerardus Johnannes Mulder’s 1838 discovery, all proteins contain carbon, hydrogen, oxygen, and nitrogen. The correct option is A.
What is Gerardus Johnannes Mulder’s 1838 discovery?Mulder used the descriptor protein in his 1838 document, "On the composition of some animal substances," after Jons Jacob Berzelius suggested it.
He also proposed in the same journal that animals get the majority of their protein from seedlings, which was known as protein.
Mulder was the very first to posit a stipulates the factors that cause distinctions in chemical and physical behavior when revealed to reagents between albumin, casein, and fibrin and other substances more or less similar to them.
All proteins, according to Gerardus Johnannes Mulder's 1838 discovery, contain carbon, hydrogen, oxygen, and nitrogen.
Thus, the correct option is A.
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the advantage to a plant i’m having more than one pigment is shown by the absorption of:
A) Violet and red light by chlorophyl a and blue and orange light by chlorophyl B
B) Violet and blue light by chlorophyl a and orange, and red light by chlorophyl B
C) Violet, blue, green, and red light by carotene
D) Green, and yellow light by chlorophyl a, chlorophyl B, and carotene
Answer:
B) Violet and blue light by chlorophyl a and orange, and red light by chlorophyl B
Explanation:
Chlorophyll is the pigment present in green plants which is used in the process of photosynthesis by trapping solar energy for use. Chlorophyll comprises of two types namely: Chlorophyll A and Chlorophyll B
Chlorophyll A is known to absorb light in the blue-violet region while chlorophyll B absorbs light in red-blue region. These pigments however don’t absorb green light but they instead reflect it. This makes option C and D invalid. The closest option in their properties is however B.
Where are the instructions that control a
cell's activities found?
Answer:
In the nucleus
Explanation:
The location depends on the type of the cell (whether animal or plant).
If it is an animal cell it is located in the center. And if a plant cell it is located around the edge pf the cell
The nucleus is a sub-cellular structure that controls all activities done within the cell.
Answer:
The instructions that control a cell's activities found in the nucleus.
Explanation:
Each of your cells has a boss, too and that is the nucleus.
1. An organism that kills and eats all or part of another organism
a. predator
b. prey
C. consumer
d. producer
Answer:
A
Explanation:
Answer:
predator
Explanation:
predators kill and eat all parts of another organism.
Which of the following is not a type of scientist
Hi there! Hopefully this helps!
This answer is Cryptologist.
For context; A cryptologist is a professional skilled in deciphering codes or puzzles or developing them as to protect classified information.
That is not a scientist.
Answer:
This answer is Cryptologist.
For context; A cryptologist is a professional skilled in deciphering codes or puzzles or developing them as to protect classified information.
Explanation:
What makes up the majority of the solar system?
stars
planets
asteroids
space
Answer:
space takes up the majority of the solar system.
Explanation:
True or false a peptide bond can be formed between the 2 atoms that are indicated by the arrows??? and explain why please!!
Answer:True
Explanation:
it acts to In hot air sterilization, the water that is removed from the cell is important to this type of sterilization mainly because Group of answer choices it acts to protec the organic molecules from oxidation it acts as products/reactants it acts to stablize the temperature it acts as a solvent
Answer:
it acts as products/reactants it acts to stablize the temperature
Explanation:
Dry heat sterilization is very useful to be used in materials that cannot come into contact with forms of heat sterilization such as steam. It is also widely used for objects that cannot come into contact with very high temperatures.
This type of sterilization is done by buckling, incineration, intra-red rays or hot air oven. In any case, it is important that the water is completely removed, both from the object and from the sterilization vehicle. This is because water is easily used by possible microorganisms to stabilize the temperature in their bodies, which can cause sterilization failures.
What could happen if a person doesn’t get the proper amount of protein in his or her diet? The impact of a diet lacking in protein would be of little consequence. Stored proteins would assist in creating new amino acids that the body needs. The body would break down existing muscle to get the amino acids it needs.
Answer:
The body would break down existing muscle to get the amino acids it needs.
Explanation:
If a person doesn’t get the proper amount of protein in his or her diet, then the body would break down existing muscle to get the amino acids it needs, which are present in the last option.
What is the function of proteins?Proteins are made up of building blocks called amino acids; some of these amino acids can be produced by the body, while others must be obtained through the diet, so if a person does not consume enough dietary protein, their body may not have access to enough essential amino acids to build and repair tissues or produce enzymes. As a result, the body may break down muscle tissue in order to obtain the amino acids it requires, resulting in muscle wasting; the immune system may not function optimally; and so on.
Hence, the body would break down existing muscle to get the amino acids it needs, which are present in the last option.
Learn more about the function of proteins here.
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The question is incomplete, complete question is below
What could happen if a person doesn’t get the proper amount of protein in his or her diet? The impact of a diet lacking in protein would be :
of little consequence.
Stored proteins would assist in creating new amino acids that the body needs.
The body would break down existing muscle to get the amino acids it needs.
Which statement describes a parasite?
• A parasite is beneficial to its host.
O Aparasite is harmed in its relationship with the host.
A parasite only benefits when the host is alive.
A parasite always kills its host and takes all the nutrients.
Answer:
Option C : A parasite only benefits when the host is alive.
Explanation:
Hope my answer is helpful!!
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The chemical equation below summarizes the process of photosynthesis.
(604 (1) 0 + 111e13) và (O2 + CK Og
Where is the energy shown in the equation transferred as a result of photosynthesis?
into water
into the air
into sugars
into the ground
Answer:
The chemical equation of Photosynthesis in the question is not clear but the energy goes into water.
The answer is "Into Water"
Explanation:
Photosynthesis is a metabolic reaction which involves the synthesis of sugars (Glucose) in plants using carbondioxide and water input in the presence of sunlight. Photosynthesis, which occurs in the Chloroplast of plant cells, occurs in two stages viz: light dependent stage and light-independent stage.
The light dependent stage involves the production of ATP and NADPH molecules, which will be used in the light-independent stage. The chemical equation of photosynthesis is as follows:
6CO2 + 6H2O ---light energy--> C6H12O6 + 6O2
The light energy input in this reaction (from sunlight) is used in the light-dependent stage to break down water molecules, a process called PHOTOLYSIS OF WATER. The photolysis of water releases electrons and protons used to build a proton pump for the synthesis of ATP.
Therefore, the energy input from photosynthetic process goes into water.
Why are rainforests particularly vulnerable to environmental degradation from subsistence farmers ?
A. Because their live hoods depend on feeding their families with the food they grow, which requires fertile land that can be acquired by cutting down the forest and burning the brush.
B. Because farmers supplements their diets by hunting large, edible species, which drive some to extension.
C. Because governments are clearing land For agriculture on an industrial scale
D. Because as farmers move to urban areas, vast tracts of land They once occupied are purchased for logging by international corporations.
Please help would be really useful , thank you!
Answer:
C. Because governments are clearing land For agriculture on an industrial scale
Explanation:
Hope this helps with your test. If I am wrong, I am sorry
Based on the images taken through Stella’s microscope, which cell structures could be clearly identified using a compound microscope?
Answer:
option A
Explanation:
Answer:
It would be the Zea Mays plant
Explanation:
The second plant leaf that Stella analyzes is Zea Mays, also known as corn, which is a vascular plant that also produces flowers.
What is defined as "the actual
function of what something can
do in an ecosystem versus what it
can fundamentally do"?
A. Climatic niche
B. Realized niche
C. Approximate niche