Answer:
This statement is true. All chemical elements are made up of atoms because atoms can cause chemical reactions when chemical bonds are broken, also why certain chemicals exist.
Which of the following statements is NOT one of the principle observations upon which Darwin based his theory of natural selection?
a. The population size of a species would increase exponentially if all individuals that were born reproduced successfully
b. Populations tend to remain stable in size, aside from seasonal fluctuations
c. Environmental resources are limited
d. Individuals in a population vary extensively in their characteristics
e. Most of the variation observed among individuals in a population is due to environmental causes; thus, very little variation is heritable (passed on from parent to offspring)
2. When do you think punctuated evolution is most likely to occur and why?
Answer:
because the trigger for this is commonly encountered like a change in temperature
What additional procedure must be done to indicate glucose is present?
The glucose urine test estimates the amount of sugar (glucose) in a urine sample. The existence of glucose in the urine is called glycosuria or glucosuria. Glucose classes can also be calculated using a blood test or a cerebrospinal fluid test.
What is diffusion?Diffusion refers to the natural tendency of a system to homogenize the concentrations of chemical species within it.
It is an irreversible transport phenomenon that results in the migration of chemical species into a medium. Under the effect of the thermal agitation, a displacement of the constituents of the zones of high concentration towards those of low concentration is observed.
Thus, The glucose urine test estimates the amount of sugar (glucose) in a urine sample.
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would an Egyptian pyramid that is 4500 years old be considered a fossil?
An Egyptian pyramid that is 4500 years old will be considered as a fossil in this scenario.
What is a Fossil?This is defined as trace of an animal or plant of a past geologic age that has been preserved in Earth's crust.
Since it has been discovered that the egyptian pyramid contains thousands of marine fossils then it can be generally referred to as a fossil.
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Structures of the Excretory System Cells produce wastes such as salts, carbon dioxide, and ammonia. For homeostasis to be maintained, these wastes need to be removed from the body. Excretion is the process by which metabolic wastes are elimiNted from the body.
- The skin excretes excess water, salts, and a small amount of urea in sweat.
- The lungs excrete carbon dioxide and water vapor.
- The liver converts potentially dangerous nitrogen wastes to urea.
- The kidneys are the major organs of excretion. They remove excess water, urea, and metabolic wastes from the blood. Ureters carry urine from the kidneys to the uriNry bladder, where it is stored until it leaves the body through the urethra.
1. Why does the body need an excretory system?
Answer:
okay lets go.
Explanation:
A body needs an excretory system because:
Withouts the excretory system the wastes such as sweats ,urea will be continously collects in the body and they are harmful therefore can cause death.
there are 3 ways that thermal energy can be transferred below write a paragraph describing each one with an example
Answer:
Thermal energy can be transferred by conduction, convection or radiation
Explanation:
Thermal energy is the energy that flows from one point to another due to temperature differences between the points. There are three ways by which thermal energy is transferred which are conduction, convection and radiation.
In conduction, thermal energy is transferred in solids usually metals due to their good heat conductivity. An example is seen in the use of metals for preparing meals. Heat (or thermal energy) is transferred from the fire to the metal to the food.
Convection occurs in fluids (liquids and gases). It usually occurs in a cyclic manner. For example in heating water, thermal energy is gained by water molecules closest to the heat source (at the base of the container) and become lighter causing them to rise to the top. The molecules at the top become denser and sink to the bottom whereby they gain energy and rise in a similar manner. This repeated phenomenon occurs in a cyclic form whereby there's displacement of colder and denser molecules by warmer and lighter molecules. Another example is the occurrence of sea and land breezes.
Radiation occurs without the need of any material medium unlike conduction and convection. In radiation, heat is directly transferred from one point to the other without being transferred by molecules. This is seen in how thermal energy from the sun reaches the earth. In other words, heat is transferred in a vacuum
can some one please help me on this question
Those are nucleus cells
If that’s your question
Answer: If that’s your question those are nucleus cells
question; testes are formed in the embryo after about ....... of pregnancy.
a) one month
b) one month and a half
c) two months
d) three months
Answer:
two months
Explanation:
hope it helps you
Explanation:
At 3 weeks of development, the germ cells migrate from the yolk sac to the genital ridge. From the 4th to the 8th week, in male embryos with a normal determining region on the short arm of the Y chromosome, the germ cells coalesce to form the primordial testis.
What seasonal response(s) to spring do animals in florida have that give them a better chance of survival?
a. animals begin to gather and store food to prepare for the hot temperatures.
b. animals have no responses to the seasonal changes of warmer temperatures.
c. spring is a season of reproduction and growth for animals. plants begin to grow and provide animals with plenty of food.
d. spring is a season of dormancy. animals will hibernate until they have more water, sun, and food.
This model shows the process of photosynthesis. The Law of Conservation of Mass reminds us that matter is neither created nor destroyed, so the atoms present in the reactants of photosynthesis are still present in the products of photosynthesis. Which of these equations accurately portrays this fact?
Answer:
6CO2 + 6H2O →(Light energy)→ C6H12O6 + 6O2
Explanation:
An obstruction in the glomerulus would affect the flow of blood into the:
Help Is it a b c or d
External appendages that stick to other cells and surfaces, which may lead to aggregates known as biofilms and colonization of microbes on inanimate objects, are known as
External appendages that stick to other cells and surfaces, which may give rise to aggregates known as biofilms and colonization of microbes on inanimate objects, are known as fimbriae.
What are biofilms?Bacterial biofilm is a major cause of medical device contamination and the spread of infectious and chronic diseases throughout the body. Biofilms, in generally, are the genesis of a variety of human diseases, as they can lead to significant infections and are resistant to antimicrobial drugs.
Fimbriae are long filamentous polymeric protein structures present on bacterial cell surfaces. They allow bacteria to fuse to specific receptor structures and colonize specific surfaces as a result.
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Please help and answer as soon as possible thanks
Rocky debris from the solar system strikes the earth as which of the following?
A. Solar eclipses
B. Moon rocks
C. Meteors
D. Ion tails
Why is it important to maintain the biodiversity and health of australia’s great barrier reef?.
Answer:
The Great Barrier Reef's biodiversity
Maintaining a healthy and diverse Great Barrier Reef ecosystem is important so it is better able to withstand, recover and adapt to impacts and stress. A productive and healthy Reef environment provides essential resources such as fish and prawns and supports many industries
How to do punnets squares
The first organisms to occupy an area after a prairie fire are known as.
Answer:
pioneer species
Explanation:
A rod shaped organism with no nucleus commonly found in the soil will most likely belong to which kingdom
Infer What would happen if the porous barrier was removed from between the two electrodes?
i know for a fact that my answer is not good and will not help
a working theory becomes a paradigm when:
Answer:
When it stands the test of time and is supported by many experiments.
A J-shaped curve can be associated with
a
exponential growth
b
biotic potential
c
unlimited resources
d
all of the above
When our cells want to store energy, a phosphate group is added to ADP.
What do we call this type of reaction?
A. Photosynthetic
B. Oxidation
C. Combustion
D. Phosphorylation
Answer:
D
Explanation:
Adding a phosphate to a molecule is called phosphorylation.
Answer:
D
Explanation:
What happens to the distance between molecules when a substance changes from a liquid to a gas? Why?
The following statement(s) is(are) true about scabies and pediculosis. a. They are two common parasitic infections to infest humans. b. Both are caused by impaired blood supply to the skin. c. They are diagnosed by visualization of the ulcers. d. All choices are correct.The following statement(s) is(are) true about scabies and pediculosis. a. They are two common parasitic infections to infest humans. b. Both are caused by impaired blood supply to the skin. c. They are diagnosed by visualization of the ulcers. d. All choices are correct.
They are two most common parasitic infections to infest man. That is option A.
What is scabies?Scabies is defined as an infection that affects the skin which is cased by parasites.
It bares the following features which include itching, rashes and sores.
Pediculosis is also a parasitic infection of parts of the body that is hairy such as the head and public region of the body.
Therefore, scabies and pediculosis are the two most common parasitic infections to infest man.
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what three body system we use to write?
during which phase of the cell cycle does mitosis occur
Answer:
The M Phase
Explanation:
The process of mitosis, or cell division, is also known as the M phase. This is where the cell divides its previously-copied DNA and cytoplasm to make two new, identical daughter cells.
A (n) _______ runs on both gasoline engine and an electric motor.
A) compact fluorescent
B) energy efficient
C) hybrid vehicle
D) consumer
E) fuel cell
F) mandated
Answer:A) compact fluorescent
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HELPPPP PLSSSS I WILL LIKE ANSWER !! AND GET YOU POINTS
Answer:
I believe it's the 3rd one (C)
has a stronger affinity for hemoglobin than oxygen has
Answer:
CO
Explanation:
Carbon monoxide binds with Hb with 240 times the affinity of O2
how does transpiration help in obtaining clean water?
Answer:
When plants absorb water from the ground they filter out many impurities, and you can extract this clean water from them. Plants transpire water, meaning that water vapor evaporates from the leaves, and this water can be collected.