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balu736 [363]
4 years ago
9

How does an enzyme speed up a chemical reaction

Biology
1 answer:
Rzqust [24]4 years ago
5 0

Enzymes speed up chemical reactions by lowering activation rates. In general, the lower amount of activation energy that a potential reaction has, the faster the rate of reaction will be.

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Mutation at this locus changes one allele to the other (i.e. it does not create a new allele). If the rate of mutation from alle
leva [86]

Answer:

0.00498

Explanation:

The equilibrium frequency  can be calculated by the formula as follows:

qe = u/(u + v)

Here, qe is equilibrium frequency, u =  0.00005 =  the forward mutation rate and v is the backward mutation rate =  0.01.  

qe = 0.00005/(0.00005 + 0.01) =

qe = 0.00498.

Thus, the answer is 0.00498.

6 0
4 years ago
What were any obstacles/struggles the individuals with disabilities Education act had to overcome?
Sati [7]

Answer:

1. The Widespread Misperception That Teaching is Easy

Teaching is a uniquely difficult job, one that comes with a set of huge responsibilities; however, many people fail to recognize the teacher’s role. The various disabilities of the students with whom special education teachers work multiplies the job’s difficulty. Special education teachers are largely unrecognized and unsupported by the public.

2. Non-Instructional Responsibilities

Many teachers are trained and willing to teach but find themselves burdened with responsibilities that remove them from the classroom. Special education teachers often find themselves being required to go to meetings, conducting assessments and dealing with loads of paperwork.

3. Lack of Support

At a time when many large school districts are experiencing high levels of growth, special education teachers are being asked to do more with less. Salaries are being cut in many districts, and there is often very little in the way of technical assistance provided by school administrations.

4. Dealing With Multiple Disabilities

A special education teacher’s classes may have students with various disabilities. Since each student is a unique case, the teacher must modify their lessons to suit each disabled learner by providing individualized education programs.

5. Handling Death

Among students in a special education classroom, there are often some with severe chronic illnesses that may result in death. Handling this is a challenge to which special education teachers will have to adapt.

6. Handling the Problems of an Inclusive Classroom

The concept of having classrooms that contain both special needs students and students who are developing typically is becoming a popular one. This type of education poses new challenges for a special education teacher. For example, many students who have no disabilities are unaccustomed to dealing with those who do. Teachers in these classes are charged with eliminating cruelty and insensitivity from among their students and ensuring that those with special needs are treated with respect.

7. Professional Isolation

The nature of a special education teacher’s work is very different from that of traditional teachers; the result of this is that standard classroom teachers may not view them as colleagues. There may be a professional stigma attached to the work of teaching “slow” students. Special education teachers often work with smaller groups and may focus on skills rather than content, thereby leading to the perception that their work is easier or less important.

8. Lack of Support From Parents

Some parents of special needs children are disinterested in the welfare of their children and fail to provide them with adequate care. Alternatively, they may be overly protective. Both can be problematic for the child and for their teacher. Disinterested parents may have no involvement with their child’s education or interaction with their teachers, whereas overprotective parents may have unrealistic expectations from the child and the child’s teachers. Both attitudes can shape children in negative ways. Parental disinterest may make special needs students less motivated and parents who are overprotective often diminish their child’s confidence and make it harder for them to learn.

9. The Difficulty of Discipline in a Special Needs Classroom

Disabled children may have behavioral issues including restlessness and moodiness. They may also exhibit problems like a short attention span or an inability to understand what is being taught. Special education teachers have to learn how to deal with these problems as well as how to take appropriate disciplinary measures.

10. Budget Problems

Across the nation, special education programs are facing increasing enrollment and decreasing budgets. The result is that there are fewer teacher assistants available, which results in a greater workload for special education teachers. They may also face shortages of essential resources and equipment for delivering effective lessons.

Any one of these challenges would make the work of a special education teacher incredibly difficult; as a group, they turn the job into a set of arduous tasks. Unfortunately, the result of the pressures placed on teachers is that the students suffer. Anyone seeking to go into this area of teaching should be aware of what they will face and have the mental and emotional fortitude to overcome the challenges in order to improve the prospects of their students.

6 0
4 years ago
Factors to consider when choosing fuel​
Mnenie [13.5K]

Answer:

Energy Value.

Ignition Temperature.

Volatility.

Flashpoint.

Ease of Liquefaction (critical temperature)

Products of Combustion

5 0
3 years ago
Identify the niche of the deer
Andreyy89
Hello there ^^ 
 Deer<span> live in mixed forests habitats, on wooded farmlands and even in suburban areas of established cities. In winter they take to coniferous forests for shelter. </span>Deer <span>are a prey species, providing food for coyotes, bobcats, cougars, wolves and occasionally humans.</span>
8 0
3 years ago
Primates are distinguished from other mammals by having: A. longer pregnancies &amp; periods of infant dependency. B. aquatic ca
yanalaym [24]

Answer:

A. longer pregnancies & periods of infant dependency

Explanation:

Primates are known to mature slowly compared to other mammals, they have a longer gestation period and longer period of infant dependency. Therefore the period between birth and adulthood is usually longer compared to other mammals, which then result to late age in their first reproduction.

For example humans have a gestation period of 365 days while baboons is 187 days compared to rabbits with a gestation period of about 33 days or  mice with a gestation period of about 20 days

Of any primate, humans exhibit the longest period of infant dependency, Chimpanzee is about 5 years compared to other mammals.

3 0
3 years ago
Read 2 more answers
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