Answer:
When Frederick Griffith discovered two strains of Streptococci in 1923, the bacteriologists were intrigued by the differences between them: the S (smooth) strain, which produces colonies that are smooth and shiny on a lab plate; the R (rough) strain, which lacks a polysaccharide coat and produces colonies that are rough and irregular on a lab plate.
Explanation:
A population of beetles is mostly composed of individuals with the dominant green color, but there are several with the recessive brown
color. A displaced species of bird moves into the habitat and preferentially preys upon the green beetles. Over time, what can be expected
to happen to the beetle population?
O A. The beetles will migrate to avoid being eaten by the birds in the habitat.
OB. The beetle population will become extinct.
O C. The beetle population will stabilize because the birds will not eat more beetles than necessary to maintain ecological balance.
O D. The brown beetles will become more common.
The green beetles will decrease in number while the brown beetles will become more common.
According to Darwin's theory of evolution, organisms that are better adapted to their environment are able to live longer and survive long enough to reproduce thereby perpetuating their favorable characteristics in the population.
Since the green beetles are more common but they are preferentially preyed upon by the invasive bird species, the green beetles will decrease in number while the brown beetles will become more common.
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mendel’s law of segregation states that the two alleles for each gene separate during gamete formation. during which stage of meiosis do the alleles separate?
The stage of meiosis at which the alleles separate is anaphase. The correct option is B.
What is meiosis?Meiosis is a type of cell division of germ cells that produces gametes such as sperm or egg cells in reproducing organisms through gametes.
It entails two rounds of division, resulting in four cells with only one copy of each chromosome.
Meiosis 1 separates a pair of homologous chromosomes and converts a diploid cell to a haploid cell. It is divided into four stages: prophase, metaphase, anaphase, and telophase.
The homologues are pulled apart and moved to opposite ends of the cell during anaphase I.
The sister chromatids of each chromosome, on the other hand, remain attached to one another and do not separate. Finally, in telophase I, the chromosomes arrive at the cell's opposite poles.
Thus, the correct option is B.
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Your question seems incomplete, the missing options are:
Metaphase.Anaphase.Prophase.Embryo formation.PLEASE PLEASE SOMEONE HELP PLEASE BRAINILY I ASSURE YOU
Salt marshes, mangroves, and seagrass beds absorb large quantities of the greenhouse gas carbon dioxide from the atmosphere and store it, thus decreasing the effects of global warming. ... Carbon sequestration — the process of capturing carbon dioxide from the atmosphere, measured as a rate of carbon uptake per year
noaa
Plants from two different true-breeding P generation lines are crossed to one another and produce offspring. These offspring are allowed to self-fertilize, which results in production of the:
Answer:
F2 generation
Explanation:
Which membrane component is a glycoprotein?
ОА
ОD
ОB
ОC
Answer:
oc
Explanation:
who is well known for his theory of evolution
Answer:
Charles Darwin
Two products are the result of photosynthesis. What is the waste product produced and released by the plant?
Question 11 options:
glucose
oxygen
carbon dioxide
water
Answer:
oxygen
Explanation:
Which molecule binds NMDA receptors and prevents the flow of ions at resting and hyperpolarized membrane potentials
Answer:
it is in the cell
Explanation:
How does chemotherapy affect cells
Chemotherapy treatments can’t differentiate between cancer cells and healthy cells. That’s why chemotherapy harms or kills healthy cells, as well as cancer cells.
Explanation:
Many common side effects of chemotherapy are caused by the treatment’s impact on healthy cells. These side effects include anemia, a weakened immune system, hair loss, and nausea.
Please help me!!! ASAP
cellular respiration
Explanation:
A
when not engaged in the processes leading to cell division, how many chromosomes from your mother are present in the nucleus of each of your somatic cells?
Answer: the answer is
23
a. both
b. neither
c. the inside of the cell
d. the beaker
Answer:
c
Explanation:
po ang tamang sagon po
Anwser this Please thank you
Answer:
I think the first one is True?
A B C or D Helpppppppppppppppppppppppp
Answer:
A
Explanation:
Answer:
It's letter C this is the answer
Compare and contrast between transportation in human ànd plants.
Why transport in human is more effective than that in plants
Answer:
1)•Plants do not have a circulatory system.
•Humans have a well defined circulatory system.
2)•transportation in plants occurs through specialised tissue xylem and phloem.
•Transportation in humans occurs through a netwotk of blood vessels such as artery vein capillary.
3)In plants substances transported are water, minerals, sugars and amino acid.
•In humans substances transported are glucose, glycerol, minerals, vitamins, fatty acids, amino acids and hormones.
4)Transportation in plants in controlled by opening and closing of stomata.
•Transportation in humans is controlled by constriction or dilation of blood bessels.
-->■Transportation in humans is more effective than the plants because in humans there is a well defined circulatory system which is highly regulated.As transport occur through blood vessel , transportation can be regulated by dilation or constriction of blood vessel.But plant do not have such circulatory system.
BRAINLIST PLS
What do stomata Get from the environment?
Answer:
Plants, by contrast, breathe through tiny pores called stomata on the underside of their leaves. These pores allow carbon dioxide to enter and oxygen to exit. Plants open and close their stomata in response to changes in their environment so they can get the CO2 they need, and avoid drying out.
Explanation:
Hello!!
Plants, by contrast, breathe through tiny pores called stomata on the underside of their leaves. These pores allow carbon dioxide to enter and oxygen to exit. Plants open and close their stomata in response to changes in their environment so they can get the CO2 they need, and avoid drying out.
brainliest!!
mixture
7. Explain the following: All compounds are substances,
but not all substances are compounds."
Answer:
Below
Explanation:
"All compounds are substances, but not all substances are compounds."
In simpler terms, let us use an example. Look at the image below.
In a big circle, there are substances. And in the small there are compounds. Since the compounds are inside the big circle, they are compounds, but as you can see, the substances are not inside the compounds so they cannot be considered compounds.
If you think about it, a substance is anything. So would you think a bottle, for instance, is a compound? A compound is a mixture of molecules. And a substance is most likely a combination of atoms, which are elements.
how does the shape of molars helps them carry out their function.
Answer:
Since molars have a large flat surface, that surface makes it easy to carry out their function of grinding, tearing, and crushing food.
Explanation:
1. Rocky Mountain spotted fever is a bacterial infection transmitted by a tick. What type of symbiosis occurs between a deer and the tick?
A. Mutualism
B. Commensalism
C. Parasitism
2. The oxpecker is a bird that eats the insects off the back of a zebra or rhino? What type of a symbiotic relationship is this?
A. Mutualism
B. Commensalism
C. Parasitism
3. Humans have “good” bacteria in their digestive tract, which assists in digesting food. The bacteria thrive there. What type of a symbiotic relationship is this?
A. Mutualism
B. Commensalism
C. Parasitism
4. Barnacles attach themselves to whales in order to be where food is available and also for transportation. This does not hurt the whale? What type of a symbiotic relationship is this?
A. Mutualism
B. Commensalism
C. Parasitism
Mutualism examples
Answer:
1. C
2. A
3. A
4. B
Explanation:
hope this helps. ♥️
Parasitism is the type of symbiosis that occurs between a deer and the tick. So, the correct option is C. This is because bacteria infect their host cell which is found in Deer.
What do you mean by Symbiosis?Symbiosis may be defined as a relative ecological association between the individuals of two or more different species.
The type of symbiotic relationship found between oxpecker and zebra is Mutualism. This is because oxpecker is able to get its prey (food), while zebra is benefitted from the removal of insects from their body. So, the correct option is A.
The type of symbiotic relationship between Humans and bacteria living in their digestive tract is Mutualism. This is because Humans are benefitted from bacteria as they assist in digesting food, while bacteria also benefit to find a proper place where unlimited food is available. So, the correct option is A.
The type of symbiotic relationship between Barnacles and whales is Commensalism. This is because Barnacles are benefitted from excess food and easy transportation, while whales are neither benefitted nor harmed by this relationship. So, the correct option is B.
Therefore, each of the questions are properly described above.
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Photosynthesis (Where does the electron that is excited by light is taken). What is the source of the electron, where does it end up?
Answer:
The source of the light electron is the sun and it is taken in by the chlorophyll contained in the chloroplasts.
Explanation:
During the development of skeletal muscle cells, some myoblasts do not fuse and instead become ______ cells.
Fucus shows ______life cycle pattern
a)Haplontic
b)Haplo-diplontic
c)Diplontic
d)Diplo-haplontic
Fucus shows the diplontic life-cylic.
Both the male and female fuse in the ostiole of the bump.
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the endocrine system is responsible for communication in the body using
Answer:
using your hormones as a chemical message to your brain
Explanation:
Question 41 A basement membrane anchors Multiple choice question. A) muscle tissue to nervous tissue. B) epithelial tissue to connective tissue. C) connective tissue to muscle tissue. D) brain tissue to nervous tissue. E) blood cells to plasma.
Answer:
B) Epithelial tissue to connective tissue
Explanation:
During DNA replication, the ____ strand is assembled in the ____ direction from helix unwinding and is synthesized by ____ replication.
Leading Same Continuous
Explanation:
;)
During DNA replication, the leading strand is assembled in the same direction from the helix unwinding and is synthesized by continuous replication.
What is DNA replication?The biological process of creating two identical copies of DNA from a single original DNA molecule is known as DNA replication. All living things replicate their DNA, which is the most crucial component of biological inheritance.
Because each of the two copies of DNA has one strand that is old and conserved and the other is newly created at the time of replication, this process is known as semiconservative replication.
Thus, during DNA replication, the leading strand is assembled in the same direction from the helix unwinding and is synthesized by continuous replication.
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the apoplast in plant tissues consists of ________.
If you throw a ball straight up into the air, when is the kinetic energy the greatest?
Question 4 options:
Right before you catch it after it falls back down.
When the ball reaches the highest point and stops briefly.
Half the distance on the path traveling back down.
Half the distance on the path traveling up in the air.
Half distence on the path traveling up in the air.
Explanation:
When the ball is on thr ground there and not moving there is no potential energy or kinetic energy, when the ball is tossed into the air it will reach maximum height which is determined by how much kinetic energy it has (air resistence is important however) when the ball reaches its velocitu is 0 and all of the energy in the system is potential energy, as the ball falls to the ground that potential energy is converted to kinetic energy
If a ball is thrown straight up into the air, the kinetic energy is greatest when the distance is half on the path travelling up in the air. Thus, the correct option is D.
What is Kinetic energy?Kinetic energy is the energy associated with the body which is under motion. Kinetic energy is directly proportional to the distance, mass and velocity of the object.
When the ball is thrown on the ground and is not moving then there will be no potential energy or kinetic energy as the height and velocity is zero when the object is on ground. When the ball is tossed into the air, it will reach maximum height which is determined by the kinetic energy it has and the air resistance when the ball reaches zero velocity and the greatest kinetic energy is observed when the body attains half of the total distance on the path.
Therefore, the correct option is D.
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The oldest living plants are __________. Your text describes one such plant,that is more than __________ years old.
Answer:
the oldest living plant is seagrass colony
Explaination:
The plant is over 100000 years old
Pith is composed of ______. Multiple choice question. companion cells sclerenchyma cells collenchyma cells parenchyma cells
Answer:
parenchyma cells
Explanation:
How do lenses correct vision?
A.) They bend the cornea.
B.) They reflect light away from the retina.
C.) They reflect light towards the retina.
D.) They bend light so that it focuses on the retina.
Answer: D
Explanation:
Glasses correct vision by allowing your eyes to focus light on the correct spot of your retina. The curved frames bend light, and with the right prescription, these frames manipulate the light to reach the correct spot on your retina.
Glasses improve vision by focusing light on the retina. With the right prescription, curved frames bend light to reach the retina.Therefore, option (D) is correct.
What is the function of lenses?Your eyes will be able to focus light on the appropriate portion of your retina when you wear glasses. This will result in improved vision. Light is bent by the curved frames, and when combined with the appropriate prescription, these frames may modify light such that it falls on the retina in the correct location.
Myopia, often known as the inability to see things that are far away, can be rectified with a lens that has a diverging power, which lowers its overall strength. The condition known as hyperopia, in which a person has difficulty seeing things that are up close, can be treated with a lens that converges light in order to boost its power.
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