Answer: 1. The digestive power of pepsin is greatest at the acidity of normal gastric juice (pH 1.5–2.5). 1.0–2.0
The optimum pH for pepsin activity of 1.0–2.0 is maintained in the stomach by HCl. When the pH of the medium increases to values greater than 3.0, pepsin is almost completely inactivated. 2. The optimum pH for the enzymatic activity of salivary amylase ranges from 6 to 7. Above and below this range, the reaction rate reduces as enzymes get denatured. The enzyme salivary amylase is most active at pH 6.8. around 7
Salivary α‐amylase has a short‐lived action. In fact, it is swallowed with chewed food and subsequently inactivated by extremely low gastric pH; amylase in fact has an optimal pH around 7, and the pH of saliva is generally between 6.4 and 7.0.
Explanation:
why is sexual reproduction a necessity for sharks
Answer:
cause they can't asexually reproduce
Explanation:
a shark has to reproduce and is too big of an organism to use asexual reproduction, so there's only one left
what gas will make a flame bigger?
How might we determine if albinism is an inherited or acquired trait?
Answer:
In all types of OCA and some types of OA, albinism is passed on in an autosomal recessive inheritance pattern. This means a child or something else has to get 2 copies of the gene that causes albinism
what is the effect of the abnormal protein on tissue function in duchenne muscular dystrophy and skeletal muscle tissue?
Answer:
Lack of the dystrophin protein in muscle cells causes them to be fragile and easily damaged. DMD carriers are females who have a normal dystrophin gene on one X chromosome and an abnormal dystrophin gene on the other X chromosome. Most carriers of DMD do not themselves have signs and symptoms of the disease, but a minority do. Symptoms can range from mild skeletal muscle weakness or cardiac involvement to severe weakness or cardiac effects and can begin in childhood or adulthood.
Explanation:
I need HELPPPP PLS ASAP ITS DUE TODAY PLSS. click on the image
hat are the two possibilities for Fred’s genotype?BRAIN 10 POINTS
Answer:
11%2F6_ -Amoeba Sisters Video Recap and Practice Problems.docx
Explanation:
#maxmeasabrainliestCell division allows multicellular organisms to grow.
Question 6 options:
True
False
The statement cell division allows multicellular organisms to grow is definitely true.
What do you mean by Cell division?Cell division may be defined as the process by which cells multiply involving both nuclear and cytoplasmic division.
Almost all multicellular organisms use the mechanism of cell division for growth and the proper maintenance and repair of cells as well as tissues.
Therefore, the statement cell division allows multicellular organisms to grow is definitely true.
To learn more about Multicellular organisms, refer to the link:
https://brainly.com/question/1292487
Vacuoles are found in plats, animals, and single-celled organisms.
In plants, vacuoles can occupy up to 90% of the cell while in animals, vacuoles are much
smaller and also help store ions and nutrients.
Single-celled organisms that live in aquatic environments like the paramecium, have a
contractive vacuole to maintain homeostasis.
Based on the information given, how does a vacuole help an organism maintain homeostasis?
A. It helps by regulating water amounts within the cell.
B. It helps by keeping a rigid structure at all times,
C. It helps by excreting salt as part of osmosis
D. It helps by controlling the movement of gases into the cell.
Answer: c
Explanation: because it helps by excreting
When digested food is absorbed into the blood vessels, it is carried to the rest of the body by the
lymph
white blood cells
lungs
plasma
blood
6. What is one main human activity that causes smog, acid rain, and con-
tributes to global warming?
the main human activity is air pollution
4 reasons why we should apply tertiary early
Answer:
you stand a better chance of being accepted at tertiary without any hassles.
you'll be able to have better piece of mind.
Which of the following sentences is the best example of formal language?
A. I've gotten totally into theater lately, but opera is too much for me; I
don't know why.
B. When I see one of my acting idols on the screen, I'm like wow,
how'd he do that?
C. I wanted to ask if you wanna come to this thing I'm in on Saturday
night?
D. I would like to extend to you an invitation to my recital, which takes
place this weekend.
SUBMIT
Answer:
b
Explanation:
......am like wow can be used to someone u are used to
Answer:
The answer is D
Explanation:
just did the test :)
do you agreed that cell is a building unit of organism yes explain why?class 9
Answer:
It can be, but not really
Explanation:
This is because cells can be the building block of an organism, e.g. humans, but they can also be their own separate organism, such as a bacteria.
During normal breathing, what is the usual stimulus for a person to take a breath?
a. a decrease in pH of the cerebrospinal fluid
b. stimulation by norepinephrine
c. PCO2 in the blood drops below 40 mmHg
d. PO2 in the blood drops below 100 mmHg
Answer:
a
Explanation:
A person's debt-to-income ratio describes:
A. how much money a person can borrow from a bank at any given
time.
B. how frequently a person has to make payments on a significant
debt.
C. how much the person has borrowed compared to how much he or
she earns.
D. how often the person's credit score changes based on increasing
levels of debt.
Answer:
A. how much money a person can borrow from a bank at any given
time.
Explanation:
The debt-to-income (DTI) ratio measures the amount of income a person or organization generates in order to service a debt.
Which of the following contribute to dirty air?
Select three options.
• photosynthesis
• fossil fuels
• smoking
• mold
• respiration
Answer:
Fossil Fuels, smoking, mold
Explanation:
Answer: Fossil Fuels, smoking, mold
Explanation: On Edge!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
how was science relevant to the world
Answer:
Science helped create almost everything today, medicinces,drought resistant food, technology, further education in doctoring, electricity etc.
Explanation:
List four real-life scenarios where the human body may have to undergo lactic fermentation.
Which phylum to not have an internal or external skeleton or shell?
Explanation:
What is the name of this website
or the book?
A 52-year-old woman has difficulty initiating voluntary movements. She can clearly state what she intends to do, describe exactly how she would do it, and picture herself doing it easily. When she is able to begin the motion, she can complete it smoothly and accurately, but she has difficulty beginning the motion. If the difficulty arises from a defect in one particular area of the nervous system, which area is most likely to be involved
Answer:
Basal Ganglia
Explanation:
The Basal ganglia function is to regulate the voluntary movements or autonomic movement. This is done by receiving and transmission of impulses. Impulses are received for upcoming movement from the cerebral cortex and then process and adjust from where it is convey to the thalamus which then relays this information back to the cortex. The well defined movement instruction is finally sent to the skeletal muscles through the tracts of the pyramidal motor system. It also function in planning and modulation of movement, memory and eye movement.
There are five types of basal ganglia corpus striatum, claustrum, amygdala, substantia nigra and subthalamic sails which all function together.
In a population of 100 people, 30 have brown hair and 70 have black hair. What is the Relative Frequency for Black hair?
Answer:
0.7
Explanation:
Given that in statistics, the Relative Frequency is the Frequency of the class divided by Total.
Hence, in this case, the Relative Frequency of black hair is the Frequency of black hair divided by the Total.
Hence, we have 70 ÷ 100
=> 0.7
Therefore, the correct answer is 0.7 Relative frequency.
In mice, agouti coloration (A) is a dominant trait for fur color over black fur
(aA Punnett square diagram is provided. A particular generation of
offspring has a ratio of three agouti individuals to one black individual.
Which of the following genotype combinations is possible for the parent
A: aa x aa
B: AA x Ar
C:Aa x Aa
D: AA x AA
Answer:
C. Aa x Aa
Explanation:
According to this question, one gene coding for fur coloration in mice is involved. The allele for agouti coloration (A) is a dominant trait over black fur (a). This means that a heterozygote mouse will have an agouti coloration.
Based on this question, two parents were crossed to produce offsprings that have a ratio of three agouti individuals (3) to one black individual (1). Based on this phenotypic ratio, only parents that are both heterozygous for the fur color gene can produce it. That is, a cross between Aa and Aa mice parent. Hence, the genotype combination of Aa × Aa is possible for the parent to produce offsprings with 3 Agouti : 1 black.
Answer: C) Aa x Aa
I got it right!
Identify the biotic factors in the environment
shown. Check all that apply.
Complete question:
Identify the biotic factors in the environment shown. Check all that apply.
1) people
2) grass
3) rocks in the mountains
4) nylon tent
5) wooden kayak
Answer:
1) people
2) grass
Explanation:
The ecosystem is composed of living and non-living things that interact and depend on each other. These are the biotic and abiotic factors.
Abiotic factors are physical and chemical components of the ecosystem. These are the non-living elements. Biotic factors are all the living components in the ecosystem.Biotic and abiotic factors influence the survival and reproduction of living beings. They are related and in constant interaction. If one of these components is removed, the whole ecosystem will change because its equilibrium has been altered.
Every abiotic component influence organisms and their survival and reproductive rates.
A few examples of the abiotic factors are solar light, minerals, water, air, gases, soil, and humidity.
Examples of biotic factors are plants, animals, insects, microorganisms, etc.
-------------------------------------------------------------------------------------------------------------
The biotic factors of the provided list are:
People, which is a group of individuals composed of cells -which is the basic unit of life-. They grow, reproduce and survive. Grass, as one or many species of vegetables that are also multicellular. They grow, reproduce, and survive.The abiotic factors are:
Rocks, which are non-living things composed mainly of mineralsTent, which is also a non-living thing, is artificially made by humans.In my opinion, the wooden kayak is a gray zone, meaning that it might be confusing. A kayak is an abiotic element with no life and is built by men. But it is constructed of wood. The wood originates in trees that are living beings, they are composed of cells, and they used to be alive. However, when talking about the kayak wood, we are referring to dead tissue. It is not alive anymore. Its cells are dead so, their whole system is not working. It is now composed of minerals and other elements with no life, and it has been modified and processed to build the kayak.
So my opinion is that the wooden kayak is an abiotic factor.
Antibodies start the inflammatory response. True or False?????????
Answer:
True
Explanation:
Which of the following is true about bacteria?
A) They have an open digestive system
B) They belong to the domain Eukarya
C) They lack a nucleus and other organelles
D) They are not living things
i would say the answer is
A) They have an open digestive system
(No links)
Which is NOT a characteristic of unsaturated fats?
A. liquid at room temperature
B. animal fats
C. kinks in the carbon chain
D. not fully saturated with hydrogens
Answer:
C
Explanation:
Base your answer to the question on the chemical reaction below.
If the chemical reaction takes place in an organism that requires sunlight to produce substance X, the organism must be
1. a heterotroph
2. an annelid
3. an autotroph
4. a fungus
What three properties of water cause the oceans to change temperature so
slowly?
Answer:
because it has highest specific heat capacity
ANSWER ASAP:
What are the basic
needs of humans? What are basic needs of
animals? How are these similar or different?
Answer: 1. Human beings have certain basic needs. We must have food, water, air, and shelter to survive. If any one of these basic needs is not met, then humans cannot survive. 2. In order to survive, animals need air, water, food, and shelter (protection from predators and the environment); plants need air, water, nutrients, and light. Every organism has its own way of making sure its basic needs are met. 3.Humans and Animals both have similar social skills. ...
We have facial expression similar to that of a mouse. ...
We talk things while sleeping just like dolphins. ...
Just like Humans, Cows also have regional accents. ...
Dolphins, just like Humans get occasionally high.
Explanation:
Order the phases of mitosis. Lesson link: https://k12inc-my.sharepoint.com/:o:/g/personal/jallison_azva_org/ErVbzwNtpQJFq-kBjktQoeIBcHCndieeBRv2QfJ2cQq-YQ?e=aZtiso Question 7 options: Anaphase Prophase Metaphase Telophase
Answer:
prophase, metaphase, anaphase and telophase