Answer:
more than 30
Explanation:
Bacteria of the genus Mycoplasma lack cell walls. What sort of environment do they require for survival
Answer:
biofilm
Explanation:
Answer:
isotonic
Explanation:
In hypotonic environments, the cells fill with water and bloat until they explode.
In hypertonic environments, the cells will lose their water and shrink.
In an isotonic environment, the cells would remain constant and thrive.
What must happen before a chemical reaction can begin?
a. The activation energy must be exceeded.
b. The activation energy must be reached.
c. The concentrations of products and reactants must be equal.
d. The concentration of reactant molecules must be reduced.
Answer:
Your answer would be B
Explanation:
In order to start a chemical reaction, energy is needed
Answer:
Option B
The activation energy must be reached.
Explanation:
According to the collision theory, the following criteria must be met in order for a chemical reaction to occur: Molecules must collide with sufficient energy, known as the activation energy, so that chemical bonds can break. Molecules must collide with the proper orientation.
Please Mark me brainliest
Felicity draws this diagram on the board to explain one
of Mendel's experiments for her classmates. She says
that it shows the cross between two first-generation
offspring. What is the error in her diagram?
All
peas should be green.
All peas should be yellow-green.
One pea should be green and three peas should be
yellow.
O One pea should be yellow and three peas should
be green.
Answer:
The right answer is C
Explanation:
Answer:
The right answer is C
Explanation: Just got it right on edge 2022
Flat bones have surfaces composed of ______ bone with internally placed ______ bone. Multiple choice question. compact, spongy
Answer: compact, spongy
Explanation:
Flat bones have surfaces composed of (compact) bone with internally placed (spongy) bone.
Flat bones are typically thin, although they're often curved. Some examples of flat bones are the cranial in the skull, scapulae which is known as the shoulder blades, ribs, and sternum. They're an attachment for muscles and are used in the protection of internal organs.
In your own words, what is the definition for the word Interphase?
Answer:
is the portion of the cell cycle that is not accompanied by gross changes under a microscope
Answer:
the resting phase between successive mitotic divisions of a cell
Explanation:
the portion of the cell cycle that is not accomplished by gross changes under the microscope
the two main function of sweat are
a. to keep the body cool and to remove excess protein
b. to remove waste products and to cool the body
Answer:
b. to remove waste products and to cool the body
Explanation:
pretty sure
A lending library has a fixed charge for the first three days and an additional charge for each day thereafter. Saritha paid ₹27 for a book kept for seven days, while Susy paid ₹21 for the book she kept for five days. Find the fixed charge and the charge for each extra day.
Answer:
See the attachment.
Hope u understand
In the given question, 5₹ is the fixed charge and 3₹ is the charge for each extra day.
A fixed charge is a fee or cost that remains constant and does not vary with changes in usage or consumption.
Let the fixed charge for the first three days be x and the charge for each extra day be y.
From the given information, we can set up two equations:
For Saritha: [tex]\rm 3x + 4y = 27 -----(equation 1)[/tex]
For Susy: [tex]\rm 3x + 2y = 21 -----(equation 2)[/tex]
We can solve for x and y by using elimination or substitution:
Using elimination, we can multiply the second equation by 2 and subtract it from the first equation:
[tex]\rm 3x + 4y = 27[/tex]
[tex]\rm - (6x + 4y = 42)[/tex]
Solving above equations, we get:
[tex]\rm -3x = -15[/tex]
[tex]\rm x = 5[/tex]
Substituting x = 5 into one of the equations, we can solve for y:
[tex]\rm 3(5) + 4y = 27[/tex]
[tex]\rm 15 + 4y = 27[/tex]
[tex]\rm 4y = 12[/tex]
[tex]\rm y = 3[/tex]
Therefore, the fixed charge is ₹5 and the charge for each extra day is ₹3.
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the two main function of sweat are
a. to keep the body cool and to remove excess protein
b. to remove waste products and to cool the body
Answer:
Sweat's main function is to control body temperature. As the water in the sweat evaporates, the surface of the skin cools.
For young men of age 20, there have been 150 rounds of DNA replication during sperm production as compared to only 23 rounds for a woman of age 20. That is a 6.5-fold greater number of cell divisions and proportionately greater opportunity for new point mutations. Yet, on average, 20-year-old men contribute only about twice as many new point mutations to their offspring as do women. How can you explain this discrepancy
Answer:
A plausible hypothesis is that deleterious germline mutations in sperm cells are removed by natural selection since sperms have to compete to fertilize the egg
Explanation:
Sperm cells need to travel through the cervix in order to reach the uterus and fertilize the egg. During this process (which is called 'fertilization'), approximately 300 million sperm cells have to compete in a race to reach an egg. During fertilization, the majority of sperm cells die off quickly because male germinal cells carry mutations that lead to abnormalities (e.g., many sperms have double heads, others no tail, etc). The sperm cells are considered to be physiologically weak because their normal functions can be easily disrupted by mutations and, simultaneously, they are under strong selective pressure to be selected during the sperm race. In consequence, deleterious germline male mutations are expected to be eliminated by natural selection, thereby sperms are selected before fertilization so only the strongest ones can compete in the race to fuse with the egg cell and thus develop one zygote.
The physiologic effects of ______ include blood vessel constriction and decreased cellular metabolism.
Answer:
The physiologic effects of cryotherapy include blood vessel constriction and decreased cellular metabolism.
Explanation:
Cryotherapy is a treatment that uses cold to aid in the process of injury healing. One of the effects of low temperatures is vasoconstriction. As a result, the pressure increases, modifying the blood's flow and aiding in the healing process since blood circulation increases. The low temperatures also decrease cellular metabolism reducing the amount of oxygen that the cell needs. As a consequence, the cells have a higher chance of survival after the injury.
What is the main source of nutrients for autotrophs?
Answer:
Most autotrophs use a process called photosynthesis to make their food. In photosynthesis, autotrophs use energy from the sun to convert water from the soil and carbon dioxide from the air into a nutrient called glucose.
A man cannot be a carrier for hemophilia. Why?
Answer:
This means that males only have one copy of most of the genes on the X chromosome, whereas females have 2 copies. Thus, males can have a disease like hemophilia if they inherit an affected X chromosome that has a mutation in either the factor VIII or factor IX gene.
Archie took several deep breaths of air. By breathing deeply, what mechanism did he assist to return venous blood to his heart
Answer: Respiratory pump
Explanation:
By breathing deeply, the mechanism that Archie did hessist to return venous blood to his heart.
During the process of inspiration and expiration when the muscles contract and relax, pressure changes takes place in both the thoracic and abdominal cavities and this changes compress the nearby veins and help im the return of blood to the heart.
What are the masses of gray matter that lie deep within the cerebral hemispheres and that are responsible for regulating intensity and precision of voluntary movement
Answer:
Cerebral cortex.
Explanation:
The masses of gray matter that lie deep within the cerebral hemispheres is called cerebral cortex. The cerebral cortex is responsible for many brain functions such as sensation, perception, memory, association, thought, and voluntary physical action. Damage occur to cerebral cortex can leads to many cognitive, sensory, and emotional difficulties in the body. It is also responsible for regulating intensity and precision of voluntary movement.
Complete the sentences with the appropriate words Cells use ____________ to power most cellular activities that require work.
Answer:
ATP
Explanation:
When two populations of animals which arose from a common ancestor become geographically separated, the populations become increasingly different from one another as each adapts independently to a suite of unique ecological conditions. These populations are said to be __________. Conversely, when two populations of animals, especially those arising from unrelated ancestors, become increasingly similar as they adapt to common (shared) ecological conditions, they are said to be __________
Answer:
divergent; convergent
Explanation:
The first populations of animals are said to have evolutionally diverged while the second populations are said to have evolutionally converged.
In divergent evolution, closely related animal populations accumulate differences (due to differences in their environments) so much so that they can become different species.
In convergent evolution, different animal populations evolve similar traits (due to similarities in their environment).
Hence, the correct words to fill the gaps would be divergent and convergent respectively.
describe how and where each type
weathering, erosion, or deposition occurs
In the Punnett square fill in the shaded boxes with the alleles of each parent use B for the dominant allele (black fur) and b for the recessive allele (white fur)
Answer:
Explanation:
Under the male put BB
Next to the female bb
then first row should be Bb Bb
second row should Bb Bb
Here, all the alleles of the black parent are dominant and are represented as BB, and those of the white parent are represented as bb, and they both are purebred dominant and recessive alleles that have produced all dominant black (Bb) offspring.
What is Punnett Square?A Punnett square is a diagram used to predict the possible outcomes of a genetic cross between two parents. In this case, the parents have different alleles for a gene that determines the color of their fur. The dominant allele B produces black fur, while the recessive allele b produces white fur. The Punnett square is arranged in a grid, with each box representing one possible genotype for the offspring. The top row and left-hand column of the grid represent the alleles that each parent can contribute to their offspring. In this case, both parents are purebred,as expressed below.
Hence, black parents are dominant and are represented as BB, and those of the white parent are represented as bb, and have produced all dominant black offspring.
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Water evaporates from a lake. Arrange the next steps of the water cycle in the correct order.
Water vapor condenses to form clouds.
Water flows down mountains and hills.
Water falls as rain, snow, and sleet.
Water joins streams or forms
groundwater
Answer:
1. Water evaporates from a lake
2. Water vapor condenses to form clouds
3. water falls as rain, snow, and sleet.
4. water flows down mountain and hills
5. water joins streams or forms ground water
Repeating cycle
a) Arrange the seedless vascular plants, angiosperms, non-vascular plants and gymnosperms in order according to the complexity of their features.
b) Arrange the same groups in the order in which they appear in the fossil record.
c) Compare the order of your two lists. What is the pattern?
Answer:
Cover the classifiction of plant on the evolution of history of significant feature in plant Gymnosperm evolved to have seed but not have flowers me. in the other way evolved seeds vascular tissue.
A(n)____is the product of gametes from two different
sources.
Answer:
I guess the answer is meiosis
Explanation:
Maybe yes or no but am 98% sure so it's ur lucky day. haha
A student combined equal amounts of two solutions. One solution had a pH of 2 and the other had a pH of 12. Which would most likely be the resulting pH?
Answer:
This question lacks options, the options are:
A. 1
B. 3
C. 6
D. 11
The answer is C. 6
Explanation:
pH of a solution refers to the concentration of hydrogen ions in that solution. A scale is used to measure pH of a solution.
* A pH value less than (<) 7 is said to be ACIDIC. The lesser the number, the more acidic
* A pH value of exactly 7 is said to be NEUTRAL
* A pH value above (>) 7 is said to be BASIC OR ALKALINE. The higher the number, the more alkaline.
According to this question, two solutions of equal volume with pH values of 2 and 12 respectively were combined. Based on the explanation of pH scale, the solution with pH 2 is said to be very ACIDIC while the solution with pH 12 is said to be very ALKALINE.
Hence, if this two solutions are combined, a neutralization will occur which will result to a solution with close to neutral pH (7). In the above options, 6 is the closest pH value to NEUTRAL and hence, the most likely pH of the resulting solution.
Answer:
6
Explanation:
edge 2022
(drag and drop) (20 points)
Answer:
Less stable : An ecosystem with populations that mate with only related species
Less stable : An ecosystem that has many species at every trophic level
More stable : An ecosystem with populations that mate with unrelated species
More stable : An ecosystem that has very few species at every trophic level
Peoples choicee can sometimes have negative effect on their own health, as well as the health or well being of others. Describe two of these choices, explaining how they can impact the individual and others.
Answer:
smoking and alcoholism
Explanation:
ANALYZE How could scientists use data from tree rings to learn more about ecosystems
in the past? Use evidence from the tree ring in Figure 2a to support your answer.
How many chambers are there in human heart
Explanation:
Your heart has 4 chambers. The upper chambers are called the left and right atria, and the lower chambers are called the left and right ventricles. A wall of muscle called the septum separates the left and right atria and the left and right ventricles. The left ventricle is the largest and strongest chamber in your heart.
Answer:
There are 4 chambers in the human heart
Explanation:
The right Atrium, the left Atrium, the right ventricle, and the left ventricle.
What about cellulose makes it ideal for structural support?
Answer:The answer would be D!
Explanation:
A hydrogen bond is one of the strongest molecular bonds. :)
Why do some species of predators appear
intimidating?
A. The adaptations they possess for hunting and eating
make them look intimidating.
B. Some predators can scare their prey into giving up
without a fight.
C. Predators do not appear intimidating.
Answer:
A. The adaptations they possess for hunting and eating make them look intimidating.
Explanation:
Some species of predators appear intimidating because of the adaptations they possess for hunting and eating make them look intimidating and fearful. The appearance of some predators make them intimidating which make the prey full of fear. For example, Lion is intimidating other animals especially its prey due to its attitude as well as physical appearance such as big sharp teeth and paws etc.
Under which circumstance will a disease not spread beyond a few individuals in a population? If the rate of infection is lower than the rate of recovery, the reproductive ratio of the infection will be less than 1. If the rate of recovery is lower than the rate of infection, the reproductive ratio will be greater than 1. If the primary case infects a large number of people very quickly, the reproductive ratio will be less than 1. If the reproductive ratio is greater than 1, only a few individuals in a population will be infected.
Answer:
The correct answer is - If the rate of infection is lower than the rate of recovery, the reproductive ration of the infection will be less than 1.
Explanation:
The rate of infection is the chances or occurence of new cases of infection in a particular population over a particular time period and the rate of recovery is the occurence of the recovery of an individual case over a period of time. These two rates determines if a disease or infection is spreading faster or lesser.
The higher the rate of infection to rate of recovery it is more lkely to be spreading rapidally and higher the rate of recovery the infection not spreading beyond few individuals in the population. In the later case, the reproductive ration of the infection will be less than 1.
the heat of the sun is received by conduction true or false
Answer:
Heat from Sun reaches us by the process of radiation. ... It takes place in the form of electromagnetic radiations. In space (where there is Sun) there is no atmosphere, no medium, so convection can't take place. By radiation only heat can be transmitted by Sun to earth.
Answer:
false
Explanation:
lol its radiation