Answer:
A and B
Explanation:
I did it
Answer:
C- Bacteria take in food that has already been digested by a person.
D- Paramecia sweep food into mouth-like structures.
Explanation:
Took the quiz
How might bird species A and B come into contact with DDT, a pesticide used by farmers. Please answer this quick.
Please help with this!!!
Answer:
B
Explanation:
Answer:
Not quit sure but i think its B
chloroplast diagram needs labeled
what are the labels 1-6?
Where do you get most of the energy you use every day?
Answer:
food
Explanation:
oml why is there a limit on how many words you need
Answer:
Most of our energy comes from the food we eat and the sleep we get.
Hope This Helps!
What happens to the rate of photosynthesis as the intensity of light or concentration of CO2 increases? And How is your conclusion from the question above different from what happens as temperature increases?
Answer:
The rate of photosynthesis increases the intensity of light or concentration of CO2 increases, however, at a certain temperature, the rate can decrease due to enzyme denaturation.
Explanation:
Photosynthesis is a unique metabolic process specific to only some organisms. The photosynthetic process, however, cannot occur without some vital ingredients including light, Carbon dioxide (CO2) and optimum temperature.
An increase in the concentration of light (from sun) and CO2 (from atmosphere) increases the rate at which photosynthesis occurs i.e. more light, CO2 results in more photosynthetic process. However, an increase in TEMPERATURE also increases the photosynthetic rate but at a particular temperature, the enzymes that bring about the photosynthetic process can be denatured or damaged, hence, at an EXCESSIVE TEMPERATURE, photosynthesis can be inhibited.
A bud forms on what part(s) of the plants during vegetative reproduction?
A.Roots
B.Stems
C.Leaves
D.A and B
E.A,B and C
Answer:
E.A,B and C
hope it helps
Basalt is a gray or black igneous rock. Pilar uses an absolute dating method to study a sample of basalt. What will the method help her learn about the basalt sample?
A seed-bearing plant starts its growth from:
the joining of egg and sperm cells
an egg cell
a sperm cell
When a sperm cell joins an egg cell, a new life is started
The FBI uses STR (short tandem repeat) analysis to identify criminals, and the FBI stores the information in a database. How many regions, or loci, of DNA are used for STR analysis? 5 13 26 30
Answer:
13
Explanation:
Short tandem repeats (STRs), also known as microsatellites, are short DNA sequences containing core repeat units of between 2-7 nucleotides (nts) which are tandemly repeated. The STR analysis is commonly used in molecular biology laboratories in order to identify DNA samples by comparing STR loci between samples. For example, the Federal Bureau of Investigation (FBI) uses 13 STR loci for the identification of individuals in the USA. It is important to note that these 13 loci are independently assorted (i.e. they are not linked), and thereby their combined use results in a very low ("nearly zero") false-positive identification rate.
Answer:
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
Explanation:
just Because it is
Maria wanted to grow a fern in her backyard. Acting on a suggestion from a friend, she collected brown dots from the underside of a fern's leaves and then potted them. After a few days, Maria saw small fern leaves erupting from the pot. Which statement explains this phenomenon? A. The fern transitioned from gametophyte generation to sporophyte generation. B. The fern grew as a result of mitosis. C. The fern transitioned from sporophyte generation to gametophyte generation. D. The fern grew to be genetically identical to its parent plant.
Answer:
A. The fern transitioned from gametophyte generation to sporophyte generation.
Explanation:
Ferns undergo an ALTERNATION of GENERATIONS in their reproductive life cycle. That is, they alternate between an incospicuous gametophytic stage and a dominant sporophytic stage. The sporophyte produces haploid spores, which germinates into the gametophyte plant called PROTHALLUS.
The gametophyte produces gametes (male and female) which fuse together to form the diploid zygote, which eventually develops into the SPOROPHYTE plant via mitosis. In this question, the brown dots from the underside of a fern's leaves that Maria collected are the spores.
When she places them in a pot, the spores germinated into gametophyte stage, then formed sporophyte, which is the small leaves she noticed growing from the pot. From this, it can be observed that the fern is transitioning from GAMETOPHYTE generation to SPOROPHYTE generation.
Answer:
A. The fern transitioned from gametophyte generation to sporophyte generation.
Explanation:
The image below shows the process of DNA replication. Identify the components of the process.
Sorry I'm late, God bless!
The given diagram shows DNA replication in mammals. The labelled parts of DNA replication in this diagram are: DNA Polymerase, RNA primase, topoisomerase, Okazaki fragments, and DNA helicase.
What is DNA replication?DNA is the genetic material in human beings. The double-stranded DNA undergoes replication to divide and form daughter strands. The main enzymes required for the replication are: DNA Polymerase, RNA primase, topoisomerase, Okazaki fragments, and DNA helicase.
DNA Polymerase: It is responsible for the polymerization of new strands of DNA
RNA primase: The polymerase requires a primase for the proper attachment on the DNA strand to begin the replication process
Topoisomerase: This class of enzyme is responsible for introducing negative supercoils in the strands of DNA which will open up the DNA double strands
Okazaki fragments: The okazaki fragments are present in the lagging strand of DNA. These are the small fragments of DNA which is not synthesized continuously
DNA helicase: These enzymes are responsible for the separation of the double strands of the DNA molecule.
The completely labelled diagram is attached with the answer.
Learn more about DNA Replication here:
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Help I’ll mark you Brainly.
??????????/Explanation:
Which of the following statements is FALSE?
a.A plant is an example of a eukaryote.
b.Proteins are made by ribosomes.
c.Animal cells have cell walls.
d.Mitochondria produce energy for the cell.
Answer:
My answer is C.
Explanation:
Because only plant cells have cell wall.
Tertiary means 3rd. So why is it the fourth link?
Answer:
quaternary
Explanation:
Which of the following is a reactant in photosynthesis?
a. O2
b. C6H12O6
c. COOH
d.CO2
5. If an organism has 5 pairs of chromosomes and no crossing over occurs, how many different
arrangements of chromosomes are possible in the gametic cells? Explain.
Answer:
In spite of the fact that he didn't have any acquaintance with it, Walther Flemming really noticed spermatozoa going through meiosis in 1882, yet he confused this cycle with mitosis. Regardless, Flemming saw that, dissimilar to during standard cell division, chromosomes happened two by two during spermatozoan improvement. This perception, continued in 1902 by Sutton's careful estimation of chromosomes in grasshopper sperm cell improvement, given conclusive insights that cell division in gametes was not simply customary mitosis. Sutton showed that the quantity of chromosomes was decreased in spermatozoan cell division, a cycle alluded to as reductive division. Because of this cycle, every gamete that Sutton noticed had one-a large portion of the hereditary data of the first cell.
Explanation:
Which experiment has the most reliable results?
A. An experiment that proves the hypothesis
B. An experiment that uses expensive equipment
C. An experiment in which the results are repeatable
D. An experiment with no hypothesis
Answer:
I would think C, if it is consistent then the results should be reliable!
Explanation:
Which of the following are similarities that Earth’s biomes all share?
Check all that are true.
Biomes all share the same biotic and abiotic factors other than annual precipitation levels.
Biomes are characterized by temperature, precipitation, and other abiotic factors.
Biomes are characterized by the types of plant and animal species that they can support.
Biomes are characterized by types of interactions between living things and other biotic factors.
Someone please help??
Answer:
The hot, humid rain forest, the dry desert, and the icy tundra all have something in common: Each one is a biome. A biome is a community of specific types of plants and animals that covers a large area of the Earth's surface. Rain forests cover hot, humid regions.
Explanation:
i hope this helps
Answer:
Biomes are characterized by temperature, precipitation, and other abiotic factors.
Biomes are characterized by the types of plant and animal species that they can support.
Explanation:
Where do you get a Genetic Disease such as DMD?
Answer:
DMD is inherited in an X-linked pattern because the gene that can carry a DMD-causing mutation is on the X chromosome. Every boy inherits an X chromosome from his mother and a Y chromosome from his father, which is what makes him male. Girls get two X chromosomes, one from each parent.
Explanation:
In a strand of DNA, if the percentage of thymine is 30%, what would the percentage of cytosine in the same DNA strand be?
Answer:
20% cytosine
Explanation:
Their is 30% thymine and a total of 30% adenine, and there is 20% cytosine and 20% guanine.
I need to know what prokaryotic and eukaryotic cells have in common
Answer:
first one
Explanation:
ribosomes
FUN FACT OF THE DAY (day:5)
Sharks have the thickest skin of any animal species. Some sharks have skin that is 6 inches thick. Sharks have the largest brains of any fish.
Answer:
dats cool
Explanation:☺
Explain why metabolism in eukaryotic cells depends on the endoplasmic
reticulum, but prokaryotes have survived quite well without such an internal
transport system?
Explanation:
Metabolism in eukaryotic cells depends on the endoplasmic reticulum because it transports materials between membrane-bounded organelles within the cell.
Which diagram shows the objects arranged so that a new moon would be visible from Earth?
HELP BE SPEEDY When cells are damaged, new cells are created by cell division. How does the cell
theory support this fact?
a. It states that cells come from previously existing cells.
b. It states that all living things are made up of one or more cells.
c. It states that all cells have a nucleus which divides.
d. It states that the basic units of structure and function are cells.
Answer:
a. It states that cells come from previously existing cells
10 POINTS HELP ASAP
During photosynthesis, the series of reactions that captures carbon and creates sugars (or other organic
molecules) needed for energy and growth is called
A. the light reductions.
B. the Krebs cycle.
C.carbohydrate loading.
D.the Calvin cycle.
Alguien dígame por favor cual es el proceso por el cual los seres vivos obtienen energía desde el punto de vista de la biología, necesito una respuesta compleja, gracias
Answer:
Explanation:
La degradación de carbohidratos, sobre todo de la glucosa, es la fuente principal de energía en la célula. La degradación oxidativa de la glucosa a CO₂ y H₂O produce una gran cantidad de energía libre, la cual puede almacenarse en la célula en compuestos ricos en energía como el ATP.
La glicólisis es la etapa principal en la degradación de la glucosa, la cual se oxida hasta piruvato. Ocurre en ausencia de oxígeno y por lo tal organismos anaerobios utilizan este mecanismo para obtener energía. Durante este proceso se obtienen 2 moléculas de ATP.
Luego, el piruvato se oxida para dar un acetilo, que se une a una Coenzima A dando acetil-CoA. Luego éste entra en el ciclo de Krebs, que es la vía central del metabolismo oxidativo. El acetilo se combina con oxalacetato para dar citrato. A través de ocho reacciones dos carbonos se oxidan completamente a CO₂ y se regenera el oxalacetato. Durante el ciclo se genera GTP, un compuesto con un enlace de alta energía. Además, cada vuelta del ciclo produce tres moléculas de NADH y una de FADH₂, que son transportadores de electrones.
Durante la fosforilación oxidativa, los electrones de estos transportadores se combinan con oxígeno y la energía liberada en el proceso promueve la síntesis de ATP.
1. Because water vapor molecules are lighter than nitrogen or oxygen molecules,
a. Hot air rises
b. Air pressure is low at high altitudes
c. Humid air is lighter than an equal volume of dry air at the same temperature
d. Clouds form in cold fronts
Answer:
your answer should be A if not try C
Explanation:
I really need help someone please help me!!
Answer:
OK Where is the problem
Explanation:
Why is drinking water usually treated before it comes out of your faucet?
Answer:
For public health and safety, water is treated before it reaches your faucet. Water treatment involves the removal of impurities that make water unsafe for human consumption. This water may flow from a surface water source, or it may be pumped from an aquifer. Hope this helps!!!
Explanation: