Answer:
a. no gene flow
Which term best describes the difference in colors of the birds below?
natural selection
Reproductive maturity
Genetic variation
Genetic drift
Answer:
Genetic variation
Explanation:
it would either be genetic variation or natural selection but with natural selection, there is usually a reason why a certain color showed up whereas with genetic variation anything can happen.
154. Two parent Holstein (black-and-white) cattle have multiple offspring. The fur ranges from black only, white only, and black and white. Which process best explains the variations in the offspring?
A. independent assortment
B. dominance
C. gene linkage
Match each item with the correct description.
1. pumps blood to the lungs
left ventricle
2. pumps blood to the body
arteries
3. receives blood from the body
left atrium
4. receives blood from the lungs
right ventricle
5. carry blood toward the heart
right atrium
6. carry blood away from the heart
veins
I can't remember what it is :P
Select the correct answer from each drop-down menu.
A mouse had a gene sequence of GTT coding for leucine, an amino acid.
mutation in this gene led to the formation of GTG. However, the amino acid formed was leucine, despite the mutation. This is a
mutation for the mouse.
The mutation that occurred in the mouse is a silent mutation since it does not affect the amino acid sequence in the protein.
What is a mutation?A mutation is a change that occurs in the sequence of nucleotides in the DNA of organisms.
A mutation can either have deleterious effect on the organism or have no effect at all. Mutations that do not have any effect on the organism are known as silent mutations.
Silent mutations do not affect the sequence of amino acids that make up a protein.
Therefore, the mutation that occurred in the mouse is a silent mutation since it does not affect the amino acid sequence in the protein.
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Which of the following is a true statement?
A. Light energy causes water molecules to split up.
B. Light energy bonds the carbon and oxygen together to make carbon dioxide.
C. Light energy creates water molecules.
D. None of the above
Answer:
A is the answer make me Brainlist
Rabbits were introduced to Australia by humans and have caused severe disruptions to the natural ecosystem. How would you classify these rabbits?
The rabbits would be classified as exotic invasive species.
What are invasive species?Invasive species are plant or animal species that disrupt the ecological balance of ecosystems by their invasive attributes.
Invasive attributes include the ability to spread or multiply at a fast rate, sometimes secreting biological chemicals to inhibit the growth of other species.
Exotic invasive species are invasive species that are introduced, rather than being native to the ecosystem.
Thus, the rabbits can be classified as exotic invasive species.
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Which structure in plants produces a substance that protects extending roots from developing fricton
There are two different species of finch that live on the same small island, species a and species b. both species successfully feed and reproduce on the island. species a nests in pine trees and eats large seeds. species b nests in hollowed-out dead logs and eats small insects. both bird species a and species b can most likely survive on the same small island because they
Answer:
both bird species can live on the same island because they live in different environments of the island meaning they don't have to fight over the same resources. Meaning both bird species can survive.
Explanation:
HURRY! I ONLY GOT SO LONG
The best descriptions are those that correctly describe the terms or concepts ecology.
Which descriptions best fit the given terms?The study of living things and their non-living is ecology.
The description of a given term provides information about that term or concept.
The best description of the given terms are as follows:
Mutualism - a relationship where both organisms benefits Commensalism - a a relationship where one organism benefits and the other is unaffected Producers - organisms that make their own foodFood web - show energy flow in an ecosystem Biome - a large area defined by climate and organisms that live there Stability - ability of an ecosystem to respond to change Exponential - growth pattern at constant rateCarrying capacity Food chain Limiting factor Parasitism Trophic levels Biodiversity Abiotic factors Population ClimateBiosphere Consumers Keystone speciesCommunityTherefore, the best descriptions are those that correctly describe the terms or concepts.
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Staphylococcus aureus, or staph, is a bacteria that is commonly found in the nose and on the skin of humans. While it is typically not harmful to humans, it is sometimes able to enter the body through an injury or broken skin, and get into the bloodstream. When this happens, it can cause a serious infection called sepsis. Sepsis can cause an individual to go into shock and bodily organs to stop functioning. Symptoms of sepsis include inflammation, fever or hypothermia, increased heart rate, and rapid breathing.
A microscopic image of staphylococcus aureus is shown.
Which immune system component initially results in the inflammation and responds quickly when Staphylococcus aureus enters the bloodstream?
complement system
phagocytes
Langerhans cells
B lymphocytes
The complement system will work first in the given scenario of Staphylococcus aureus infection, i.e., option A.
What is a complement system?The complement system, also known as the complement cascade, is an immune system component that improves (complements) antibodies' and phagocytic cells' ability to clear microbes and damaged cells from an organism, promote inflammation, and attack the pathogen's cell membrane.
In the given scenario, when Staphylococcus aureus enter the body through an injury or broken skin, and get into the bloodstream then the complement system initiate the phagocytosis.
Thus, the correct option is A.
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Answer:
its a, complement system
Explanation:
i thought it was phagocytes and got it wrong on edge, trust its a
Which surface attaches to the underlying epithelial cells or deeper tissues?.
Answer:
the surface that attaches to the underlying epithelial cells is the basal lamina
Explanation:
Which of the following is a direct result of deforestation? (4 points)
Fewer storms
Habitat loss
Increased oxygen levels
Severe weather increase
The direct result of deforestation is habitat loss.
What is deforestation?Deforestation is defined as the purposeful felling of trees which are used for domestic use and the space created is used for agricultural purposes
The direct impact of deforestation is the effect it has on the arboreal habitat. The animals that live on trees have their habitats destroyed.
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What are two ways translation is regulated?
Answer:
through changes in the availability or activity of the "helper"
Explanation:
This process involves many "helper" proteins, which make sure the ribosome is correctly positioned. Translation can be regulated globally (for every mRNA in the cell) proteins.
Please describe the process of natural selection in your own words by using an example.
Answer:
natural selection is animals slowly adapting to its environment
an example is giraffes, giraffes with longer necks will be able to consume more food than giraffes with shorter necks as they they can reach for the leaves on trees. over time the giraffes with shorter necks become extinct and giraffes with longer necks still remain.
Understand biological structures and the different human body systems
Answer:
The nine major organ systems in the human body are the integumentary system, the musculoskeletal system, the respiratory system, the circulatory system, the digestive system, the excretory system, the nervous system, the endocrine system, and the reproductive
hope it helps you
During ____________ , an enzyme removes a ____________ functional group from the monomers of one organic molecule and a hydrogen from another monomer, linking monomers together to form a ____________ . This chemical reaction also forms ____________ .
During dehydration synthesis, an enzyme removes a hydroxyl functional group from the monomers of one organic molecule and a hydrogen (H) from another monomer, linking monomers together to form a polymer. This chemical reaction also forms water molecules as byproducts.
An enzyme removes a hydroxyl (-OH) group from one monomer and a hydrogen (H) from another during dehydration synthesis, allowing the monomers to form a polymer. This mechanism bonds monomers covalently and produces water molecules. Complex biological components including proteins, nucleic acids, and carbohydrates depend on dehydration synthesis.
Eliminating water molecules strengthens chemical connections, making it easier to assemble bigger structures from smaller components. This response aids energy storage, structural stability, and information flow in living things.
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1. A red flowered individual that is homozygous dominant for red flowers. Write the genotype____ and phenotype____ for the following individuals.
2. A red flowered individual that is heterozygous for red flowers.
Genotype:______ Phenotype____. Write the gamete possibilities for the following individuals.
3. Rr Gametes:___. ____
4. rr Gametes: ___. ____
Answer:
1. genotype: RR; phenotype: red
2. Genotype: RR, Rr, rR: red rr: not red
3. RR, rr or Rr, Rr
4. only Rr, Rr it's the only combo that would give us a recessive gene
Explanation:
Genotype is the alleles, phenotype is the actual color or the physical manifestation of those alleles
place help my plase and thanks.
"We may not know about all organisms present in the ancient world since not all organisms on Earth can be fossilized". The best statement is that Organisms that have soft bodies decay before they fossilize.
What are the soft body animals?The animals represented via way of means of those newly found fossils, which include sponges, annelid worms, mollusks, and horseshoe crabs, lived at some stage in the Ordovician length among 480 million and 472 million years ago, making them the oldest ever found at some stage in this length.
For a soft-bodied animal to be fossilized, its frame should be blanketed from decomposition. The frame is typically uncovered to air and water with quite a little oxygen, so it decomposes rapidly. The animal is probable to be fossilized best if it's miles buried quickly after it dies (or whilst it's miles buried may be fossilized.
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What did the Miller-Urey experiment provide evidence for?
*
a. primordial soup theory
b. endosymbiosis
c. spontaneous generation
d. biogenesis
Answer:
i believe it is endosymbiosis
In the total time of the United States space program, how many space flight tragedies have occurred? 1 2 None 5
About 20 astronaut have faced fatalities during the space program.
Answer:
2
Explanatioin:
DO reasearch about all the space launches
What do you think are the scientific names for two atoms covalently bonded
together?
The scientific names for two atoms covalently bonded are : Hydrogen and oxygen
Covalent bondingCovalent bonding is the sharing of electrons between two atoms. This type of bonding occurs between two or more nonmetals.
Elements formed by covalent bonds are non-metal elements and the atoms that form covalent bonds are non-metal atoms. the scientific names of two atoms that are covalently bonded are ; hydrogen and oxygen to form water
H₂ + O = H₂O
Hence we can conclude that The scientific names for two atoms covalently bonded are : Hydrogen and oxygen.
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Anyone know how to do this?
Answer:
The ones in bold are the answers. I really hope this helps you.
Explanation:
Blood sugar is too high. Pancreas releases insulin to stimulate the liver and store glucose to break down sugar from the blood and store it as glycogen or glucose. Blood sugar levels decreases.
Blood sugar level is too low. Pancreas releases glucagon to stimulate the glucose production in the liver and maintain adequate plasma glucose concentrations to convert stored glucagon and fat back into glucose to be released in the blood. Blood sugar levels increases.
Good luck... ^.^
Which structure is present in bacteria but not in a virus? O nucleic acid O capsid O cell membrane O envelope
Answer:c(cell membrane
Explanation:Quizlet said so
The skin is an organ that protects the body and helps with sensing the environment.
Which of the following is true about skin?
Choose 1 answer:
(A) the skin is made up of tissue.
(B) the skin is made up of different tissues that carry out the same function.
(C) the skin is made up of tissues with different functions that work together.
Answer:
A
Explanation: the skin is made up of tissue
The skin is made up of tissues with different functions that work together. So, the correct option is (C).
What is Skin?Skin is defined as the largest organ of the body where skin and its derivatives such as hair, nails, sweat and oil glands form the integumentary system. The main function of the skin is protection which protects the body from external factors such as bacteria, chemicals and temperature.
The skin is made up of water, proteins, fats and minerals that protect the body from germs and regulate body temperature. Skin nerves help to feel sensations like hot and cold.
It is made up of three layers, the epidermis, dermis and hypodermis which are anatomically distinct. Its structure is made up of a complex network that serves as the body's initial barrier against pathogens, UV light and chemicals, and mechanical injury.
Thus, the skin is made up of tissues with different functions that work together. So, the correct option is (C).
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marking brainlist!!!!
Please i need the answer quickly
Answer:
C.
Explanation:
it can't be considered due to the changes of oxygen levels,species from the ecosystem will get affected.
is an earthquake an
example of direct or
indirect
Answer:
i feel like there should be more to the question so you can get a better answer but i will say direct
Explanation:
sorry if im wrong
Which of the following best explains how the root hair contributes to the function of the root epidermal cell? Choose 1 answer: Choose 1 answer:(Choice A)
A
It causes the cell to move in response to stress.
(Choice B)
B
It gives the cell enough space for a nucleus.
(Choice C)
C
It allows the cell to absorb more water.
Answer:
C - It allows the cell to absorb more water.
Explanation:
Specialized cells often have unique structures that allow them to carry out a function. For example, a root hair increases the surface area of a root epidermal cell, allowing the cell to absorb more water.
Answer:
C - it allows the cell to absorb more water
Which of the following is a direct result of deforestation? (4 points)
Fewer storms
Habitat loss
Increased oxygen levels
Severe weather increase
The option that is a direct result of deforestation is habitat loss. Details about deforestation can be found below.
What is deforestation?Deforestation is the process of destroying a forest and replacing it with something else, especially with an agricultural system.
Deforestation is often caused by the need to build non-agricultural resources.
However, destroying forest is synonymous to destroying the habitats of living organisms.
Therefore, the option that is a direct result of deforestation is habitat loss.
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what is ecological succession?
Answer:
Yellow
Explanation:
The change an ecosystem experiences over time
The change in ecosystem experiences over time.
In simpler words, the process in which there is a change in species, as well as habitat, occurs over some time.