Answer:
D. Because the universe is expanding, scientists conclude that in the distant past, all matter was compressed into a single point.
During action potential which of these statement is true?
a) Na+ goes outside the cell membrane
b) there is repolarization of cell membrane
c) there is depolarization of cell membrane
d) non of above
List three sources of freshwater.
Rain, River, ocean
Answer:
Sources of freshwater: rivers, lakes, reservoirs, and creeks and streams.
As native mason bees visit flowers, they spread pollen while also consuming nectar from the plant. This is an example of symbiosis.
true or fasle
Answer:
True
Explanation:
Symbiosis is a type of relationship or interaction between two different biological organisms/species by which both are benefited. The bees such as mason bees are pollinators. Pollinators are animals (especially insects) that help the development of seeds and the fruit surrounding seeds by the pollination of flowers, i.e., by the transference of pollen from male anthers of a flower to the female stigma. During this process, pollinators eat nectar, which is a sweet energy-rich liquid secreted by flowers. In consequence, both species (i.e., plants and mason bees) are benefited from this interaction.
Which of the following can cause mutations?
A. All of the above
B. Radiation
C. Chemicals
D. Errors during DNA Replication
[tex]\huge\colorbox{purple}A\colorbox{blue}n\colorbox{purple}s\colorbox{blue}w\colorbox{purple}e\colorbox{blue}r [/tex]
just correct me if I'm wrong ✨
Don't bash me please :(
__________________________________
D. Errors During DNA Replication ✨
[tex]\color{Violet}\rm{☘︎Hopeithelps!}[/tex]
Mutations arise spontaneously at low frequency owing to the chemical instability of purine and pyrimidine bases and to errors during DNA replication. Natural exposure of an organism to certain environmental factors, such as ultraviolet light and chemical carcinogens (e.g., aflatoxin B1), also can cause mutations.[tex]\color{gold}{✨•MissyyZackiee•✨} [/tex]__________________________________
“I ask that you’ll have the power to grasp love’s width and length, height and depth, together with all believers. I ask that you’ll know the love of Christ that is beyond knowledge so that you will be filled entirely with the fullness of God.” — Ephesians 3:18-19 ❤__________________________________
What is the only thing that creates organisms better adapted to their environment?
A. Natural Selection
B. Artificial Selection
C. Small population size
D. Gene Flow
Answer:
A. Natural Selection
Explanation:
Natural Selection is the only thing that creates organisms better adapted to their environment.
It is based on the Charles Darwin's theory of evolution by natural selection.
Answer:
A. Natural Selection
Explanation:
Natural Selection is the only process that creates organisms better adapted to their local environment/ increases fitness.
The Montreal Protocol of 1987 provided a global framework to phase out chlorofluorocarbon (CFC) production and use. A though the Montreal Protocol has led to a dramatic decrease in CFCs released into the atmosphere, stratospheric ozone destruction has decreased only slightly.
Answer:
True
Explanation:
What type of information is recorded in a trace fossil?
A: Radioactive evidence
B: molecular evidence
C: evidence of a fossil’s actual age
D: evidence of an organism’s activities
Evidence of an organism's activities is the type of information that is recorded in a trace fossil.
dos semejanzas y tres diferencias, entre los postulados griegos, y los postulados de Van Helmont y Needham de las teorías abiogenistas
En este dominio existen gran variedad de procariotas, con diversidad morfológica y fisiológicas, en este están todas
las procariotas patógenas, su tamaño oscila entre 1 y 40 milimicras, es
a) Protista
b) Eubacteria
c) Archaea
d) Eukaria
Answer:
c) Archaea
Explanation:
Los dominios biológicos son los taxones de más alto nivel, por encima de los reinos y abarcando todos los taxones, caracterizándolos de la manera más generalizada posible, dentro de la clasificación científica. Hay tres tipos de dominios llamados Archaea, Bacteria y Eukarya. Entre ellos, el dominio conocido como Archaea es el que engloba a los organismos procarióticos, unicelulares y patógenos, es decir, capaces de provocar enfermedades en el ser humano.
how old is president Cyril Ramaphosa??
The only function of the cytoplasm is to protect the organelles.
ЕОО
True
False
Answer:
false
Explanation:
because the cytoplasm also contains substances like enzymes and also regulates the water in and out of the cell
Answer:
false
Explanation:
.............................que es la salud?
1. Stern cells are different from other cells, as they are not specialized and can reproduce other unspecialized cells. There has been great controversy over the use of stem cells in the United States, especially when they are taken from fetal tissue. What are some possible benefits to humans of using stem cells?
plz hellllp
Answer:
Stem cell benefits:
Can repair limbs such as Arms cut off etc.
Can Repair cells and keep people from ageing
Can reduce the effect on diseases
Test new drugs for safety and how effective they are
Make people live longer and healthier lives
Explanation:
Humans aren't aware on how to harvest stem cells effectively in a way they work on humans tot heir full potential but the reasons I listed above are only the tip of the iceberg when it comes to what we can do with these.
In eukaryotic cells, where does transcription occur?
A. Nucleus
B. Extracellular matrix
C. Cytoplasm
What is true of a primary consumer?
A) Always omniverous
B) Sometimes a detrivore
C) Frequently autotrophic
D) Most likely herbivores
Our atmosphere acts like a blanket trapping heat and keeping Earth at a habitable temperature, it’s this retaining of heat that is referred to as the Greenhouse Effect. The greenhouse effect is caused by greenhouse gases that trap heat from the sun, the more greenhouse gases there are the more heat is retained
HOW IT WORKS
The heat from the sun (solar radiation) has a very short wavelength and this can pass easily through the layer of greenhouse gases. This wavelength is called Ultraviolet radiation. As the UV rays strike the Earth, the Earth redirects the rays back into the atmosphere. We feel this as heat. The heat from the earth (terrestrial radiation) has a longer wavelength (infrared) some of this becomes trapped by the layer of greenhouse gases.
GREENHOUSE GASES
Water vapor (H20) is the most prevalent greenhouse gas and occurs naturally. Some greenhouse gases are both natural and man-made including carbon dioxide (CO2) & methane (CH4).
Describe the size of insolation when it strikes the Earth.
What would happen if there were no greenhouse gases to trap heat?
Answer:
y
Explanation:
y
Which layer of the atmosphere protects all life on land by absorbing high energy radiation?
Answer:
The troposphere layer.
Which of the following materials do cone bearing plants produce for reproduction?
O spores and pollen
O flowers
O egg and sperm cells
O anther and stigma
Long
Answer:spores and pollen
Explanation:
what law out of newtons law is this statement ? please help
( The phone will hit the ground and the ground will push up with the same force. With a case, it is increasing the amount of time the phone hits the ground. This means the reaction force will be less.)
Answer:
Newton's Third Law
Explanation:
Newton's Third Law is: If object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A.
In this case, Object A is the Phone, and Object B is the ground. When the phone(Object A) hits the ground(Object B), the ground pushes up on the phone making the time increase and makes the reaction force less. Hope this helps!
Our understanding of taxonomy has changed and will continue to change as we further understand living things at the genetic level.
A. True
B. False
Answer:
a
Explanation:
In the early days of life on Earth, plants were exposed to extremely high doses of ultraviolet radiation, Constant UV exposure
resulted in some land plants developing narrow leaves with thick, waxy cuticles. Over many, many generations, these narrow
leaves evolved into needles.
Relate the development of plant needles to the occurrence of mutations,
A)
Plant needles adaptations for survival that some plants developed due to
high temperatures on Earth
B)
Plant needles are the result of leaf cell mutations that made some leaves
thick and waxy, while other leaves did not change,
Plant needles are the result of neutral mutations to leaf tissue that would
neither help nor harm the plants living in such a harsh environment.
D)
Plant needles were a beneficial mutation that increased survival of certain
plants that reproduced and passed the mutated gene to offspring,
Answer:
B I think.
Explanation:
Meiosis results in ____ cells.
Answer:
haploid
Explanation:
HELP PLEASE DUE SOON
Explain how building the lake near Galetown could affect the amount of water vapor and the amount of rain.
Answer:
Adding a lake near any town will most likely increase rainfall because of the added water, and water vapor levels will also increase. Because of the excess water in the environment, more water will be found in the surrounding atmosphere (the same reason precipitation will increase in the area.)
Explain the difference: a myelinated axon conducts impulses faster than non-myelinated axon of the same diameter
Answer:
A myelinated axon conducts impulses faster than a non-myelinated axon. ... Therefore, in myelinated neurones, the nerve impulse is said to jump from node - to - node, a impulse pathway known as Saltatory Conduction. This means that the action potential does not have to travel along the whole length of the myelinated axon
Explanation:
Modern classification systems are based on structural similarities, fossil record and
- modern classification is based on figuring out evolutionary relationships using evidence from living species, the fossil record, and molecular data. - the evolutionary history for a group of species. ... - each species in a clade has some traits that have changed from its ancestors over evolutionary time.
Hope This Helps! can i get brainliest lol
What are the base units the SI units are based on
Answer:
he units in the revised SI are based completely on seven unchanging quantities or “universal constants,” including the speed of light, the amount of electric charge in an electron, and the Planck constant.
hope it helps
Explain how the investigation could indicate that chlorophyll is needed for photosynthesis. Include the role of chlorophyll in your explanation.
How red blood cell adapt to function
Answer:
Red blood cells haveadaptations that make them suitable for this: they contain haemoglobin - ared protein that combines with oxygen. they have no nucleus so they can contain more haemoglobin. they are small and flexible so that they can fit through narrow blood vessels.
Explanation:
Hope It Helps
help me ..................
Answer:
1,1,6
Explanation:
saw ur other post w the actual Q; ans 1, 1 and 6.
Answer:
Explanation:
The first two pictures show an ovum and a sperm so it is 1 for both boxes. The third picture shows embedding into the uterus wall and that is 6.
I was wondering what is this until you posted the questions in another post.
The digestive system and the excretory system both excrete waste.
Answer:
The answer is
The digestive system excretes a solid waste and the excretory system excretes a liquid waste.
hope it will help you
Answer:
The digestive system excretes a solid waste and the excretory system excretes a liquid waste.
Explanation:
I Know I am in the future