Answer: A digestive system can be defined as a system which is made up of the alimentary canal and the associated glands and organs which produce some of the enzyme- rich secretions that bring about digestion. The process of digestion of food Hanan are, is discussed below.
Explanation:
The food taken by Hanan consist of carbohydrates (rice, potatoes ), protein( fish, dal) , fats and oil( fish, fried potatoes). The digestion of the food taken passess through a long tube ( alimentary canal) which stretches from the mouth through oesophagus to stomach, intestines and down to the anus.
In the MOUTH, the following occurs:
--> The food is cut and grinded into smaller pieces by the help of the teeth.
--> the enzyme ptyalin acts on the carbohydrate part of the food converting it to complex sugar.
--> the food is mixed with saliva, with the help of the tongue, is rolled into a bolus which is then swallowed.
At the STOMACH, food enters through the peristaltic movements of the oesophagus, The following occurs:
--> The muscular walls of the stomach contract and relax forcefully, thus churning the food.
--> Gastric juice( consists of pepsin, renin and dilute hydrochloric acid). Dilute hydrochloric acid activates pepsinogen to pepsin which digests proteins to polypeptides.
--> Food remains in the stomach for three to four hours. By this time, it is a thick, creamy fluid called chyme which them moves to the duodenum (small intestine).
At the SMALL INTESTINE, digestion occurs at the first part called the duodenum, and later part called the ILEUM.
--> Several substances are secreted into the duodenum from the pancreas( pancreatic juice) and liver( bile), the accessory organs of digestion.
--> pancreatic juice contains three important enzymes whose activities include:
• Amylopsin: Breaks down complex sugar to maltose
• Trypsin: breaks down protein into peptides
• Lipase: Breaks down fat into carboxylic acids and glycerol (end product of digestion of fat).
--> Bile from the liver, adds water to the chyme, emulsifies fat and neutralise the action of dilute hydrochloric.
At the ILEUM, intestinal juice is produced by special cells of the small intestine. Their actions include:
• maltase: this acts on maltose converting it to glucose( which is the end product of carbohydrate digestion).
• erepsin: This acts on peptides converting it to amino acids( which is the end product of protein digestion).
Absorption takes place at the small intestine.
When eggs and sperm are made, the two alleles for each gene separate when the homologous chromosomes separate during meiosis. Each egg/sperm cell only gets one allele for each gene. Which of Gregor Mendel’s principles is this?
Answer:
1st law: Law of segregation
Explanation:
Mendel’s First Law: Law of Segregation During each round of meiosis, chromosomes are separated into daughter cells. This means that one half of the genetic material goes to one gamete and the other half goes to the other. Mendel’s first law essentially states that the alleles in one locus segregate into separate gametes.
I need help on this and the person who answer this first correctly gets a BRANLIST(answer if you know)
Your first big biology exam is coming up in a few days, and in order to prepare for late-night study sessions, you buy a box of Yummies, a delicious type of snack cake. After checking out the nutrition facts label on the side of the box, you discover that a single Yummie cake contains 4.5 grams of total fat, 27 grams of carbohydrate, 0 grams of fiber, and 1 gram of protein. After eating a Yummie cake, what molecule do you expect to be most abundant in your digestive system
Answer:
Carbohydrate.
Explanation:
The most abundant molecule that is present in the digestive system is the carbohydrates because the food contains higher amount of carbohydrates. The breakdown of carbohydrates leads to the presence of more glucose concentration in the stomach. The concentration of fats and proteins are low due to the presence of low amount in the food that the person can eats. Fats are converted into fatty acids while on the other hand, proteins are converted into amino acids.
Which of the following changes takes place during the third trimester of a womans pregnancy
A.) the fetus begins to form teeth
B.) the fetus develops toenails,lips, and eyelashes
C.)The mothers uterine contractions begin
D.) the fetus’s hands and feet appear
Answer:D
Explanation:
The fetus develops toenails, lips, and eyelashes is the change that takes place during the third trimester of a woman's pregnancy. Therefore, option (B) is correct.
What happens in third trimester?By the third trimester, which begins around the 28th week of pregnancy and lasts until birth, the fetus has already formed most of its organs and body parts. During this stage of pregnancy, the fetus undergoes significant growth and development. This includes the development of toenails, lips, and eyelashes. Additionally, the fetus begins to accumulate body fat, and its brain undergoes rapid development.
To answer the other options, the formation of teeth begins during the embryonic stage, which occurs in the first trimester. The mother's uterine contractions typically do not begin until labor, which occurs at the end of the third trimester or later. The fetus's hands and feet appear during the embryonic stage, specifically around the 6th week of pregnancy.
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What is the relationship between the light-dependent and light-independent reactions of photosynthesis?
Answer:
In the light-dependent reactions, energy from sunlight is absorbed by chlorophyll and that energy is converted into stored chemical energy. In the light-independent reactions, the chemical energy harvested during the light-dependent reactions drives the assembly of sugar molecules from carbon dioxide.
which is a primary function of a vacuole in a cell
Answer:
The primary function of a vacuole is that it can store water and food.
Explanation:
Answer:
A vacuole is a membrane bound cell organelle
the function of vacuoles is to maintain water balance and for storage of something
the size of vacuoles in plant cell is very big it takes more than half of the cell but in animals very small
hope it helps
True or false Certified wood comes from trees grown in sustainable forests. Group of answer choices
Answer:
True.
Explanation:
Forestry can be defined as the art and science of creating, development, management, conservation and analysis of the living organisms such as plants, trees and woodlands existing in the forest. This is usually done so as to tap into the environmental benefits associated with the forests and to ensure the continuous existence of wildlife, plant growth and development.
Forest Management is a branch of forestry. The field of forest management typically deals with legal, administrative, financial, economical, technical and social aspects of a forest so as to facilitate the smooth running and operation of the forest reserve.
A sustainable forest can be defined as a forest management process which typically involves the plantation of seedlings to replace trees that are being cut down. Thus, sustainable forestry is mainly focused on keeping the natural forest alive.
Generally, certified wood comes from trees grown in sustainable forests i.e responsibly managed forests.
Hence, certified woods are gotten from trees that were harvested in accordance with sustainable forestry.
Which of the molecules from the photosynthesis equation stores the most energy?
I need help with this question for Living environment
which group contains the least number of elements
Answer:
Noble Gases
Explanation:
What is the correct amino acid for the mRNA codon: UUG
A. proline
B. lysine
C. leucine
D. arginine
Answer:
C. leucine
Explanation:
Hope this helps
What trait would make an individual likely to survive and reproduce in a pest population that feeds on pest-resistant plants?
Answer:
Upon exposure to insecticides, insects that do not carry the resistance genes die, thus allowing the individuals with the resistance genes to survive and reproduce, creating more resistant insects. With every generation the number of resistant insects increase.
Explanation:
The trait that would make an individual ( pest ) survive in a pest population that feeds on pest-resistant plants is : Possession of Pesticide resistant genes
In a pest infected population most pests can be eliminated with the use of pesticides. therefore when pesticides are administered in the population, the pests that posses genes resistant to pesticides will survive and continue their reproduction cycle. while pests without pesticide resistant genes will be eliminated.
Hence the trait that a pest( individual ) should posses to survive in a pest population is; the Possession of Pesticide resistant genes .
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A sunflower turns toward the sun. What type of tropism would this be?
Answer:
Phototropism
Explanation:
Phototropism is the term that describes the growth of a plant toward any light source.
Using land for agriculture and forestry can lead to soil erosion. Which of the
following decreases with increased soil erosion?
A. Water turbidity
B. Biodiversity
C. Cases of respiratory disease
D. Desertification
Biodiversity decreases with increased soil erosion.
What is soil erosion?Soil erosion is the process by which soil is moved or displaced by the action of wind, water, or other environmental factors. This can occur naturally or can be caused by human activities, such as deforestation, agriculture, construction, or mining. Soil erosion can have negative impacts on the environment, as it can lead to the loss of topsoil, which is the most fertile layer of soil and contains many of the nutrients needed for plant growth. This can reduce the productivity of land and affect agricultural yields. Soil erosion can also lead to water pollution, as soil particles can be carried by runoff into streams, rivers, and lakes, which can harm aquatic ecosystems and reduce water quality. In addition, soil erosion can have negative impacts on infrastructure, such as roads, buildings, and bridges, as it can cause the soil to become unstable and lead to landslides, mudslides, and other types of erosion-related damage. Therefore, soil erosion is an important environmental issue that requires careful management and conservation practices.
Which of the following decreases with increased soil erosion?B. Biodiversity. Soil erosion can have a negative impact on biodiversity, as it can destroy or alter habitats, reduce the availability of nutrients and water, and create barriers to plant and animal migration. Soil erosion can also lead to the loss of topsoil, which is the most fertile layer of soil and contains many of the nutrients needed for plant growth. This can have a cascading effect on the food chain, as it can reduce the availability of food for herbivores, and in turn, reduce the number of predators that rely on these herbivores for food.
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Plant cells and animal cells were observed under a microscope. The characteristics of two cells are listed below.
Cell A: Has a cell wall
Cell B: Has chloroplast
Which statement about the two cells is correct? (5 points)
Both cells are plant cells.
Both cells are animal cells.
Cell A is a plant cell and Cell B is an animal cell.
Cell A is an animal cell and Cell B is a plant cell.
Answer:
Both cells are plant cells.
Explanation:
Short tails(T) are dominant to long tails(t). What is the probability of a long-tailed mouse in the cross TT x tt?
A.25%
B.50%
C.75%
D.100%
Please no links, explain if can, and only answer if 100% sure!!!!!
Answer:
0%
Explanation
all offspring will be hererozygous (Tt) it order for one of the offspring to have a long tail it would have to be (tt) and TT x tt cant make that
Answer: D is the answer
Explanation:
16. Biomass is derived from___
and is used to produce____
Answer:
Organic matter : biofuels
Explanation:
Biomass is derived from Organic matter in the soil and is used to produce Biofuels. Hope this helps
Please mark Brainlist
Ecological succession usually includes changes in all of the following EXCEPT-
A. The number of different kinds of plants
B. The number of plants of any one species
C. The overall size of the dominant plants
D. The rate at which species produce offspring
Answer: its d i just took the test
Explanation:
Ecological succession usually includes change EXCEPT for the option" A" which is the number of different kinds of plants.
What is Ecological succession?Ecological succession is the process that describes how the structure of a biological community (that is, an interacting group of various species in a desert, forest, grassland, marine environment, and so on) changes over time.
Thus, according to ecological succession, the number of different kinds of plants.
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Need answer quick please thanks
compare and contrast the three types of symbiotic relationships.
Answer:
Mutualism is a symbiotic relationship in which both species benefit. Commensalism is a symbiotic relationship in which one species benefits while the other species is not affected. Parasitism is a symbiotic relationship in which one species (the parasite) benefits while the other species (the host) is harmed.
how is a pot of water is an example of radiation?
Answer:
For example, when a pot of water is placed on the stove to boil, conduction heat warms up the pot, which then heats the water molecules inside. As these molecules heat, convection causes them to move away from the interior of the pot as they are replaced by cooler molecules.
The most amount of energy is available at what level of an energy pyramid?
Could somebody please help me?
Select the correct answer
Which biogeochemical cycle includes the exoskeleton and shells of marine organisms as a reservoir?
A) carbon
B) nitrogen
C) sulfur
D) oxygen
Thank you! :)
Answer: The answer is Oxygen.
Which statement accurately describes calories and Calories? A kilocalorie is equal to 1000 Calories. A kilocalorie is equal to 1000 Calories. A Calorie is equal to 100 calories. A Calorie is equal to 100 calories. A calorie is equal to 1000 Calories. A calorie is equal to 1000 Calories. A Calorie is equal to a kilocalorie. A Calorie is equal to a kilocalories.
Answer:
A kilocalorie is equal to 1000 Calories.
Explanation:
This is because 1000 calories make kilocalorie and it is the unit of energy in nutrition. It is the energy needed to raise temperature of 1 litre water to one centrigade or Celsius at sea level or is the amount of energy needed to cause increase of one degree Celsius of water.
How is an ectotherm most likely to maintain homeostasis during hot weather? O A. By burrowing underground O B. By shivering O C. By sweating O D. By sitting on a warm surface
An ectotherm is most likely to maintain homeostasis during hot weather by burrowing underground. Thus, the correct option is A.
What is Homeostasis?Homeostasis may be defined as the process that involves a condition of balance among all the body systems required for the body to survive and operate correctly.
Ectotherms are those organisms that can not be able to maintain their internal body temperature with respect to the external one.
They follow different strategies like hibernation during winters and aestivation during summers.
During hot weather, they usually undergo summer sleep by burrowing underground.
Therefore, the correct option for this question is A.
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what gives the body a source of glucose that the body can turn into energy please help me this is due today
Answer:
It could be carbohydrates, or just food in general
Answer: yeah that’s what i mean i lol oh gosh gosh i yeah yeah oh yeah that’s why i didn’t want me to do that it lol oh yeah that’s what i said oh gosh gosh i yeah yeah oh gosh
3. Which areas of the bathroom are most likely to be contaminated?
Taps
Flushes
Toilet Seat
Door Handles
Communal Towels
TODOS
All of the Above
Answer:
toilet seat
Explanation:
the dookie in the toilet
13. A man who has type A blood whose dad had type O blood and a
woman with type B blood whose mom has type O blood are going to have
a child. A. What are the genotypes of the parents? B. What are the possible
blood types of the child and what are the chances of the child could have
each one?
parental genotype I^o I^a × I^o I^b
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
The main disadvantage of using solar energy to generate electricity is that solar panels
A. Produce greenhouse gases
B. Produce water pollution
C. Are expensive to operate
D. Are expensive to purchase
Answer:
D - cost of purchasing
Explanation:
Solar panels use the sun to operate which has no cost so the answer is not C
The sun does not create green house gases and has nothing to do with pollution so the answers can't be a or b leaving us with answer choice D
how are karyotypes made?
Answer: A karyotype is simply a picture of a person's chromosomes. In order to get this picture, the chromosomes are isolated, stained, and examined under the microscope. Most often, this is done using the chromosomes in the white blood cells. A picture of the chromosomes is taken through the microscope.
Explanation:
Karyotypes are prepared from mitotic cells that have been arrested in the metaphase or prometaphase portion of the cell cycle when chromosomes assume their most condensed conformations. A variety of tissue types can be used as a source of these cells.
Explanation:Hope this was helpful and have a great one!
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