1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alisha [4.7K]
2 years ago
10

Why is mechanical digestion and important to chemical digestion

Biology
1 answer:
dangina [55]2 years ago
6 0
They are both important because mechanical has to do with physical - cause mechanical means physical, so chewing your mouth is physical (you break your food into smaller pieces physically). And then chemical digestion is when food and saliva mix together. They happen when breaking down food into nutrients - enzymes. Enzymes are important for that process, because they make a nutrient.



Hope this helps!!

You might be interested in
A scientist is studying two previously undocumented organisms to determine how environmental conditions affect phenotype express
Nady [450]
I think it’s most likely A
3 0
2 years ago
Florida seagrass has special roots to help it stay anchored in moving ocean water as adaptation to its marine environment. True
Hitman42 [59]
The answer would be true
3 0
3 years ago
Membrane lipids in tissue samples obtained from different parts of the leg of a reindeer have different fatty acid compositions.
AnnZ [28]

Answer:

The presence of a larger proportion of unsaturated fatty acids in membranes imparts them fluidity at lower temperatures as required to maintain their normal functioning.

Explanation:

The proportion of unsaturated and saturated fatty acids in membranes regulates their fluidity. At lower temperatures, membranes become more rigid. To maintain their normal fluidity, the proportion of the unsaturated fatty acids in membranes is increased. The unsaturated fatty acids have double bonds in their hydrocarbon tails which in turn do not allow their tight packing and impart fluidity to the membrane core.

At higher temperatures, membranes become more fluid and therefore, the proportion of the unsaturated fatty acids is reduced. The tissues of reindeer at the body's extremities such as those near hooves are exposed to surroundings and thereby, lose heat and have lower temperatures. To maintain the fluidity of membranes, the cells of these tissues incorporate more of the unsaturated fatty acids in their membranes as compared to the tissues in the upper legs where the body temperature is relatively higher.

5 0
2 years ago
Question 11 of 25
Vedmedyk [2.9K]

Answer:

B. An idea supported by evidence.

3 0
3 years ago
1. Excretion is the process of (1 point)
ycow [4]
Q1. The answer is removing metabolic wastes from the body.
Excretion is the process through which metabolic wastes are removed from the body. Skin, lungs, and greatly kidney, which are the part of the excretory system, are responsible for excretion of metabolic waste in vertebrates. Invertebrates have special systems (insects, for example, have Malpighian tubules) or use skin to excrete metabolic wastes while single-celled organisms use the whole surface of the cell.

Q2. The answer is some animals live in dry or salty environments.
Kidneys are important organs in maintaining water balance. Some animals that live in dry and salty environments must preserve water in order to maintain homeostasis. They drink and eat food with more salt in it. If they lose that precious water in such conditions, the amount of different salts in the organism will increase and it will affect a normal functioning of the organism.

Q3. The answer is simple diffusion across the skin. 
Ammonia is very toxic substance and a lot of water is needed for its neutralisation and excretion. Therefore, animals that live in water excrete ammonia directly in the water. Many freshwater invertebrates eliminate ammonia through skin. In animals that do not live in the water, kidneys and liver help conversion of ammonia into urea which is then excreted.,

Q4. They both actively pump salt across their gills. 
Both saltwater and freshwater fishes use gills to eliminate nitrogenous wastes while kidneys have a little role in the elimination of this kind of the waste. Salt that is lost is replaced by active transport of salt ions into the body by the gills.

Q5. The answer is They both convert nitrogenous wastes to uric acid. 
A garden spider and a sparrow are terrestrial organisms. They do not live in the water and do not excrete metabolic wastes in the water. It is known that ammonia is toxic nitrogenous substance and a lot of water is needed for its excretion. For water organisms this is not a problem, they are surrounded by water, but terrestrial organisms, such as the garden spider and the sparrow, have no such amount of water in the environment, so their kidneys and liver must convert ammonia into urine which can then easily be excreted.
8 0
3 years ago
Other questions:
  • Which of the following is true about tubular reabsorption?
    8·1 answer
  • BRAINLIEST IF CORRECT for the following structural characteristics, decide if it is a characteristic of dna, a characteristic of
    8·1 answer
  • Photosynthesis is a process that converts sunlight into energy that is then either used or stored.
    8·1 answer
  • MAX POINTS!
    12·2 answers
  • What are made in the light reactions of photosynthesis?
    5·2 answers
  • What's the role of the complement in the phagocytosis?
    8·1 answer
  • How can scientists investigate the impact of limiting factors on a population?
    6·1 answer
  • PLEASE HELP MEEEE. A rigid layer that lies outside the cell's membrane is... *
    5·1 answer
  • PLEASE I NEED HELP ASAP GIVING 75 POINTS IF YOU COMPLETE ALL AND BRAINLIEST!!!
    11·1 answer
  • How are stromatolite fossils evidence of earths early life?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!