Answer:
The answer is 3
Explanation:
Hope this helps
Answer:3 or c
Explanation:
What are the five evidences that a chemical change has taken place ?
Answer:
Odor, temperature change, precipitate formation, production of gas bubbles, and a color change!
Explanation:
No explanation needed really.
what is the meaning of structure?
Answer:
the word 'structure' in biology has the following meaning;
"An arrangement or organization of parts to form an organ, system, or living thing"
which structures in male produce fluids that mixes with sperm to form semen
Explanation:
The testicles. Lol or Penis. Imma try to be mature
What is the complementary DNA strand that is created from this
template during replication?
A template strand of DNA is 3' GATCCAAAATGT 5'.
-5 GATCCAAAATGT 3'
-5' CUAGGUUUUACA 3'
-5' CTAGGTTTTACA 3'
-5' TCGAACCCCGAG 3'
Why was natural selection an important contribution to the theory of evolution?
It proved that evolution is true.
It explained how evolution works.
It summarized the process of evolution.
Olt highlighted the main points of evolution.
Answer:
It explained how evolution works
Explanation:
Answer:
It's C
Explanation:
Which characteristic makes fungi similar to plants?
Answer:
They are both non-mobile and eukaryotic.
Explanation:
Plants and fungi both remain stationary. They do not move around for their food. Another similarity is that they both are made up of eukaryotic cells, meaning they contain a nucleus.
Answer:
While both are eukaryotic (both have nucleus) and don't move, plants are autotrophic, making their own energy - and have cell walls made of cellulose, but fungi are heterotrophic, taking in food for energy (so they eat dead and decaying food), and have cell walls.
Explanation:
Hope this helps!
What happens first at each origin of replication?
A: enzymes kill viruses
B: enzymes remove bases
C: enzymes unwind DNA
D: enzymes eat nucleotides
Answer:
The answer is C.
Explanation:
At first, an enzymes called Helicase unwind the double helix in a DNA .
B and T cells of the immune system have unique B and T cell surface receptors (respectively) as shown above. What is the function of the variable and the constant regions of the B and T cell receptors of the vertebrate immune system? A) There will be an increase in inflammatory response during an innate immune response. B) There will be a decrease in allergic responses on the part of the individual to allergens in the environment. C) There will be an increase in variety of the shape of the B and T cell receptors, allowing them to recognize and destroy more pathogens. D) There will be a decrease in pathogens that can enter the body, resulting in a decrease of antibodies present and circulating in the blood.
Answer:C. There will be an increase in variety of the shape of the B and T cell receptors allowing them to recognize and destroy more pathogens
Explanation: usa test prep
Answer:C
Explanation: Because I did the USA test prep
Red squirrels and gray squirrels have been the native species on an island for many years. A few years ago, black squirrels entered this island. The black squirrel is an invasive species. Invasive species aren't native to the ecosystem. They move into an ecosystem because of natural changes or human intervention. Red squirrels and black squirrels have identical food requirements, but gray squirrels have a different diet. What three effects will these events have on the island's squirrel population?
Answer:
1. There will be direct predation of species.
2. There will be competition for limited resources like breeding sites, prey.
3. Transmission of diseases or they can cause danger to the native species.
Explanation:
Invasive species are species of organisms that are not natural to an ecosystem and move to an ecosystem because of natural changes and human intervention. Islands are prone to the invasion of invasive species because they don't have predators and there is no competition that control populations in their ecosystem. The invasion of black squirrels will lead to competition for limited resources like breeding sites or prey, the black squirrels will begin to predate other squirrels because they have different nutrients requirements and they can transmit diseases to other squirrels if they are carrier.
Answer:
B C D
Explanation:
GOT IT RIGHT ON PLATO
Match the time period with the correct layer of fossils (mya = millions of years ago). ITEM BANK: Move to Bottom 175 mya250 mya400 mya 175 mya 0
Answer:
0 mya, 175mya, 250mya, 400mya
Explanation:
The substance which highest million year ago should be more in-depth in the soil hence 400mpa should occupy the highest depth below the ground.
True or false? To make up for the loss of energy when solar energy is used by primary producers and then transferred up the food chain, a continuous supply of solar energy to the ecosystem is required.
Answer: Energy can not be lost, rather it can be converted into other forms of energy , so false.
Explanation:
To make up for the loss of energy when solar energy is used by primary producers and then transferred up the food chain, a continuous supply of solar energy to the ecosystem is not required. Thus, the given statement is false.
What is energy cycle in an ecosystem?The energy flow in the ecosystem is important to maintain an ecological balance in the ecosystem. The producers in a food chain synthesize food by the process of photosynthesis. A part of this energy is stored within the plant species.
The energy cycle in an ecosystem is based on the flow of energy through the ecosystem. The energy from sunlight is converted by the plants them into the growing new plant materials including the flowers, fruits, branches, trunks, and roots of the plants. Since, the plants can grow by converting solar energy directly into their tissues.
Learn more about Ecosystem here:
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Explain how Natural Selection can lead to evolution.
Answer:
Sample Response: When the environment changes, organisms best suited for the new environment survive and reproduce. This allows the favorable adaptation to be passed on to the next generation. Over time, more and more organisms will have the favorable adaptation, and the population will evolve.
Explanation:
Just did it.
Which traits would Aristotle have used to classify sharks? Choose more than one answer.
Answer:
The main trait that was different between sharks 14 and 9 was that shark 14 (Mobulidae) has a front with two points that look like horns, whereas shark 9 (Dasyatidae) has a front with no points that look like horns.
Explanation:
The traits that Aristotle would have used to classify sharks are :
Front with points ( hornlike )Front without points Sharks classificationSharks whose front have two points like horns are classifed by Aristotle as sharks 14 (Mobulidae). whlie sharks whose front does not have two points like horns are classifiesd as sharks 9 ( Dasyatidae ). hence the traits that would have been used by Aristotle to classify sharks is the presence of points at the front.
Hence we can conclude that the traits that Aristotle would have used to classify Sharks are Front with points and front without points.
Learn more about Shark clasification : https://brainly.com/question/25619446
Which body system is an important place for mineral storage, gives us support and structure, and provides a place for muscle attachment? A) digestive B) muscular Eliminate C) nervous D) skeletal
Answer:
Skeletal
Explanation:
Your bones hold everything together, and help support your body. Also your muscles are attached to your bones. If i'm wrong i'm sorry
How do the data that Samantha obtained help explain the way that the body maintains homeostasis during exercise? Include the activities of at least three body systems in your explanation.
Answer:
the way that the body maintains homeostasis during exercise is the removal waste product such as carbon dioxide gas which is produced during cellular respiration.
Explanation:
During exercise, the body needs more oxygen and nutrients. For this purpose, energy is released in the process of cellular respiration. The product of cellular respiration the generation of energy in the form of ATP and carbon dioxide gas. ATP is used by the body while carbon dioxide is removed from the body during breathing. During exercise, the glucose is provided by the digestive system to the mitochondria of the cell and the waste product is removed through respiratory system of the body while the circulatory system sends energy molecules where it is needed in the body and carbon-dioxide to respiratory system for removal.
A(n)
is an organism that breaks down dead organisms and
Answer:
Decomposer
Explanation: I just did it
An organism that breaks down dead organisms and decomposes is called a decomposer, and the decomposer takes part in the decomposition process by breaking down the dead and mixing with soil.
What is the decomposer's importance?Decomposers are of great importance as they can maintain the ecosystem by breaking down dead organic matter and recycling nutrients back into it, later, these nutrients are passed from the environment to plants, then to animals, and then back to the environment. Decomposers include bacteria and fungi that consume dead plant and animal material, breaking down complex molecules into simpler compounds that can be used by plants to grow.
Hence, an organism that breaks down dead organisms and decomposes is called a decomposer, and the decomposer takes part in the decomposition process by breaking down the dead and mixing with soil.
Learn more about the decomposer here.
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Which layer best represents the mantle?
A. 1
B. 2
C.3
D.4
3 plz help if you can its worth 11 points+
Select the correct answer.
A population of lizards lived in an ecosystem that was prone to flooding. After many generations, most of the lizards in the population had longer legs than their ancestors, which helped them flee from floods. Which statement best explains this change?
A.
The lizard genes spontaneously mutated to address the flooding threat.
B.
Genetic variation among lizard limbs allowed for natural selection to occur.
C.
The limbs were artificially selected because humans probably caused the flooding.
D.
The lizards with longer limbs cloned themselves, ensuring survival of the species.
Answer:
b
Explanation:
this is correct bc it shows that although a mutation occurred, it happened over time, and so now, the lizards attained a new adaption which allows them to avoid the floods
Hope this helps!
What is a human genome sequence?
Answer:
The human genome is the complete set of nucleic acid sequences for humans, encoded as DNA within the 23 chromosome pairs in cell nuclei and in a small DNA molecule found within individual mitochondria. These are usually treated separately as the nuclear genome, and the mitochondrial genome.
Write two sentences on global warming
Answer:
Global warming is a major crisis in the world. It is when companies or industries dump or pollute the air or the nature that is around us.
Explanation:
Answer:
I'm glad you asked!
Explanation:
Global warming is temperature of earths surface and more, like atmosphere.Global warming is Mostly about temperature and crisis.People are hurting animals in the ocean and throwing garbage.
Hope that was helpful.Thank you!!!
What is the purpose of the motor neuron?
to carry information from sense organs to the brain or spinal cord
to carry information from the brain or spinal cord to sense organs
to carry information from the brain or spinal cord to muscles and glands
to carry information from muscles and glands to the brain or spinal cord
Answer:
ans this question is no 3
Explanation:
Because it sends electrical output signals to the muscles affecting the muscles ability to functions.
1. In a sample of double-stranded DNA, 10% percent of the nitrogenous
bases are guanine (G). What percentage of the nitrogenous bases in the
sample are cytosine (C)?
10%
80%
40%
90%
Answer:
10
Explanation:
Body systems in the human body work together to support the essential life functions of the body. The urinary system interacts with the cardiovascular system in several significant ways. Which of these is NOT an accurate interaction between the two body systems?
A) The kidneys secrete an enzyme called rennin that helps control blood pressure.
Eliminate
B) The kidneys filter metabolic waste products and toxins from blood for excretion from the body in urine.
C) The kidneys excrete a great amount of sodium and water helping control sodium concentration and blood pressure.
D) The kidneys secrete erythropoietin, a hormone which stimulates the production of white blood cells in the body.
Answer:
a
Explanation:
the kidney secretes an enzyme called rennin that helps to control blood pressure is not true the kidney does not secret rennin
What is sexual selection
blood type can receive Rh+ or Rh- blood
Answer:
People with Rh- blood can give blood to both Rh- and Rh+ recipients. However, those with Rh+ blood cannot give to Rh- recipients. If a person receives blood from someone with an incompatible blood type, it can cause a life threatening immune system reaction.
Answer:
Have a nice day.
Explanation:
Keith and Marsha's only child to have a carrier genotype, Jeff, did marry. Cedric remained single due to poor health, and Nita swore off marriage after several bad relationships. Jeff and his wife Adrienne had four children, Angela, Keith, Joyce, and Denise. Although the parents were not expecting it to happen, their only son and their second born girl were born with sickle cell disease. Post- pedigree questions: If you were Ketih and Marsha's genetic counselor, what would you tell them? _____________________________________________________________________________________ Which of the Jackson's grandchildren are definitely carriers? _____________________________________________________________________________________ What is Adrienne's genotype? ________________________________
Answer:
Answer to Question 1:
Sickle cell anemia is a recessive disorder. The fact that one of their children is a carrier means that either of Keith and Marsha is a carrier ot it might be that both of them are carriers of the disease.
Answer to Question 2:
The other two kids of Jeff and Adrienne who don't have the genetic disease are still carriers of sickle cell anemia.
Answer to Question 3:
Adrienne is a carrier of the sickle cell anemia disease as well, just like Jeff.
Hope that answers the question, have a great day!
Which characteristic of life distinguishes a fire in flowering plant
Answer:
The use of energy is a life characteristic that distinguishes fire from a flowering plant. EXPLANATION: When fire is put on, it makes use of oxygen and releases carbon dioxide and other gases.
Explanation:
How do hormones relate to the estrous cycle?
Answer:
Estrous cycles give females repeated opportunities to become pregnant throughout their productive lifetime. The cycle is regulated by the hypothalamic-pituitary-gonadal axis, which produces hormones that dictate reproductive events.
Explanation:
!PLEASE HELP!
One type of bioremediation uses ____ to break down wastes and pollutants into less harmful material.
a. bacteria
b. vaccines
c. pasteurization
d. fission
PLEASE HELP WILL MARK BRANLIEST
Select the correct stages.
Identify the ways in which carbon is added to the atmosphere.
Answer:
photosynthesis, factory emissions
Explanation:
