Answer:
B
Explanation:
mass extinction definition
Answer:
The extinction of a large number of species within a relatively short period of geological time, thought to be due to factors such as a catastrophic global event or widespread environmental change that occurs too rapidly for most species to adapt.
Explanation:
Hope this is helpful.
A cell with 12 chromosomes undergoes mitosis. How many daughter cells are
created?
each daughter cell has chromosomes.
Answer:
2 daughter cells with 12 chromosomes each
4. What is the most likely explanation, if we see an increase over time
of a specific trait in a population?
Organisms with that trait are more suited to their environment or reproducing
Organisms without that new trait stopped reproducing.
The organisms without that trait either left or died off.
Organisms with that trait killed the organisms without the trait.
Answer:
This all I can do hope this help
Please help I’ll give brainliest
Answer:
53
Explanation: You do 36 + 17 = 53 neutrons
Answer: The answer is 19
The organism at location D is the
Blank organisms at location A, B, and C.
hi :D, This is your answer because the organism at location D is at the very beginning of the cladogram thus passing on traits to organisms A,B, and C.
What is the relationship of gravity to Earth, the sun and moons?
Explanation:
Our sun is 27 million times larger than our moon. Based on its mass, the sun's gravitational attraction to the Earth is more than 177 times greater than that of the moon to the Earth.
gymnosperms is an advance ground than pteridophytes ? justify
Both gymnosperms and pteridophytes are groups of plants that evolved before the appearance of flowering plants (angiosperms).
While it is difficult to definitively categorize one group as being more advanced than the other, there are certain characteristics of gymnosperms that are considered more advanced compared to pteridophytes.
Here are a few reasons why gymnosperms are often considered more advanced:
1. Reproductive Structures: Gymnosperms have advanced reproductive structures compared to pteridophytes. Gymnosperms produce seeds, which are protected structures containing the embryo plant and a food source, allowing for successful dispersal and germination.
Pteridophytes, on the other hand, reproduce through spores, which are more vulnerable and have lower survival rates compared to seeds.
2. Pollination: Gymnosperms typically have more advanced pollination mechanisms. They often rely on wind or animals for pollination, whereas pteridophytes primarily depend on wind for spore dispersal.
The use of animals for pollination, such as insects or birds, is considered more advanced as it allows for a more precise and efficient transfer of pollen.
3. Vascular Tissue: Both gymnosperms and pteridophytes have vascular tissue (xylem and phloem) for the transport of water, nutrients, and sugars. However, gymnosperms have more efficient vascular systems, allowing for better nutrient and water uptake.
This increased efficiency is attributed to the evolution of specialized conducting cells called tracheids, which are more advanced than the conducting cells found in pteridophytes.
4. Adaptability: Gymnosperms exhibit a wider range of adaptability compared to pteridophytes. They can thrive in diverse habitats, including harsh and cold environments.
Gymnosperms have evolved various adaptive features, such as needle-shaped leaves, thick cuticles, and reduced leaf surface area, which helps reduce water loss and increase tolerance to extreme conditions.
Know more about Gymnosperms:
https://brainly.com/question/17194627
#SPJ2
Depletion of nonrenewable resources is often a result of?
strenuous exercise leads to muscle cramp give reason
Explanation:
Cramps can have causes that aren't due to underlying disease. Examples include dehydration, strenuous exercise or lack of muscle use.
HOPE IT HELP YOU MATE ☃️☃️
Answer: Lactic acid
Explanation: The acid is caused by anaerobic respiration, which you do when you do not get enough oxygen
How to speak perfect japanese
What are fossil fuels? Why do you think they are used if they cause climate change?
Answer:
fossil fuels are natural fuels like coal.
When fossil fuels are burnt they release large amounts of carbon dioxide ( a greenhouse gas ) that traps heat in our atmosphere causing global warming which is also a factor of climate change
Explanation:
hope i helped dearest
The synthesis of organic molecules from water, sunlight, and carbon
dioxide is known as ___
O photosynthesis
O respiration
O development
O homeostasis
Where does the exchange of oxygen (from the air) with carbon dioxide (from the cells) take place?
A. Where are the bronchi meet the bronchioles
B. Where the blood meets the cells
C. Where the nasal passages meet the air
D. Where are the alveoli meet capillaries
Answer:
The Answer is Option D.
Exchange of respiratory gases, oxygen and carbon dioxide take place in the alveoli of the lungs. Oxygen which is inhaled from the atmosphere diffuses through the walls of the alveoli and reaches to the adjacent capillaries into the red blood cells.
Answer:
D. Where are the alveoli meet capillaries
PLEASE ANSWER FAST I NEED IT
Answer:
the answer to this would be d
If all the cougars disappeared from this community, which change would be
most likely to occur?
coyote cougar
squirrel
mouse
deer
grass
acoms
mushrooms
A. The squirrel population would increase
B. The deer population would increase.
C. The grass population would increase.
D. The coyote population would decrease.
Answer:
deer pop would increase bc nothings eating them
Answer: deers would increase in population since no predators
Explanation:
In the morning you eat an orange and drink a cup of coffee, both are acidic items.
What happens to the pH of the cells in your body?
Answer:The physiological response is to maintain a neutral PH.
Explanation:
*HELP ASAP
Depletion of nonrenewable resources is often a result of:
1)environmental laws
2)human population growth
3)reforestation
4)recycling
Answer:
Depletion of nonrenewable resources is often a result of reforestation.
Answer:
2 -- Human Population Growth
Explanation:
The rest have no effect on nonrenewable resources because they are renewable, or replenishable. The more humans expand, they more resources they need such as gas, coal, and oil. Due to the fact that resources such as those listed before can't be renewed, or replenished, it causes a loss in those resources (depletion).
The GLUT transporter moves glucose through a transport protein in the same direction as its concentration gradient. The action of the glucose transporter is an example of _____________. The SGLT transporter uses the sodium concentration gradient created by the sodium potassium ATPase to move glucose against its concentration gradient. The action of the SGLT transporter is an example of _______________.
Answer:
The correct answer is - facilitated transport and secondary active transport.
Explanation:
GLUT transporter is a glucose transporter that helps in moving the glucose to its concentration gradient through the cell membrane. It is a transport protein that uses passive transport of facilitated transport that moves down their concentration gradient and therefore does not require chemical energy from ATP hydrolysis in the transport step.
Sodium-based GLUT or SGLT is also a glucose transport protein that exhibits secondary active transport as it develops electrochemical potential difference by moving ions out of the cell membrane, this gradient allows the movement of ions and molecules.
A farmer tested the soil in a field and found that there was a high nitrate salt concentration. The farmer then grew a crop in this field. After the crop was removed, the soil was tested again. The nitrate salt concentration had decreased.
Answer:
The crops has extracted the nitrates from the soil
Explanation:
Complete question
Why?
Solution
The crops has extracted the nitrates from the soil for its nourishment and metabolic requirement. Hence, the concentration of nitrate after the crop cultivation has reduced as compared to the concentration of nitrate prior to the crop cultivation.
do invertebrates have limbs for locomotion?
Terrestrial locomotion has evolved as animals adapted from aquatic to terrestrial environments. Locomotion on land raises different problems than that in water, with reduced friction being replaced by the increased effects of gravity.
hope it helps...
Answer:
Explanation:
Are insects glued to one spot? Think of the mosquito which can land on anything with blood and get what they need. They can also walk around to look for a nice juicy conduit.
Spiders -- same story. They spin their webs and wait to see what hits the webs.
What about the octopus, which has 8 legs to propel him. Almost all insects have ways of moving around.
Which of these terms accurately describes Alzheimer's disease?
Autosomal
Complex disease
Recessive
Dominant
Answer:
I think that the answer is Dominant.
Explanation:
Helpful?
Why do some ecosystems remain stable for centuries while others undergo succession
As long as the ecosystem inputs remain the same, the ecosystem will remain stable. Only when there is a fire, drought, or other disturbance in the ecosystem, will the ecosystem change. A new set of plants will arise to most efficiently use the resources that are available under the new conditions. However, over time, if the disturbance is temporary, the ecosystem will eventually revert to the stable ecosystem that was there before the disturbance.
What is a stable ecosystem?Stability (of an ecosystem) refers to the capability of a natural system to apply self—regulating mechanisms so as to return to a steady state after an outside disturbance.
What is succession?Ecological succession is the process of change in the species structure of an ecological community over time.
Causes of succession:Topographical: Extreme conditions cause abiotic topographical factors, which are mainly involved with secondary succession. Landslides and mudslides are examples of this type of factor.Soil: The soil, an abiotic factor, of an environment affects ecological primary succession greatly. Different species of plants require different soil conditions.Climate: Climate, an abiotic factor highly involved in both primary and secondary succession, plays a significant role in determining the direction of succession in an environment. Ecosystem remains stable: It’s all about balance, left to its own devises nature constantly rebalances.populations increase and decrease all the time, usually due to food sources either being plentiful or scarce, when plentiful the animals that feed on them thrive and breed.when scarce they starve and decline in number, this decline in numbers allows time for the food source to regrow or reproduce (if the food source is another animal species), The ecosystem is unaffected in the long run and remains in balance.Thus, it can be concluded that As long as the ecosystem inputs remain the same, the ecosystem will remain stable.
Learn more about ecosystem stability here:
https://brainly.com/question/1296107
#SPJ2
A principle that states in a sequence of undisturbed rocks, the oldest rocks are on the bottom
and the rocks become progressively younger toward the top
Choose from these answer:
(Superposition)
(Uniformity)
(Fault)
(Overfolding)
super position
Explanation:
because because it is arranged in a sequence
What are the by products of Light Reaction ?
Answer:
There are two end products of the light reaction of photosynthesis, ATP and NADPH. These molecules are produced during the cyclic and the non-cyclic photophosphorylation reactions.
Explain how cellular respiration is the opposite reaction to photosynthesis.
Answer:
Cellular Respiration and Photosynthesis are almost opposite processes because photosynthesis removes carbon dioxide from the atmosphere while cellular respiration puts back carbon dioxide. Cellular respiration uses oxygen and has it's waste product of carbon dioxide (CO2).
Trust me mark me as brainliest trust me
Answer:
this is because during photosynthesis oxygen is released and in cellular respiration oxygen is taken in or inhalation takes place
hope it helps
What environmental factor was important for the
Cambrian "explosion of life”?
Answer: the earth was just starting to develop really well and well enough for life.
Explanation: atmospheric oxygen and oceanic calcium levels went up, but nobody needs to know that much facts about how earth developed, But the group called phyla started growing because of these conditions
Answer:
Explanation:
Tôi nghĩ rằng nếu quan trọng thời điểm đó phải là hình thành tầng ozon tạo tiền đề thiết lập hệ sinh thái
Which of the following is a true statement regarding phytoplankton?
they are most commonly found near deep-sea thermal vents
they are responsible for 80% of all global warming
they are the only cause of green ocean water
they are the primary photosynthetic plants in the ocean
Answer:
(D) I think
Explanation:
3.5.2 Test (CST): Computer-Scored Unit Test
Question 18 of 25
Why does having a genetically diverse population make a species more likely
to survive a change to the environment?
A. They are more likely to reach carrying capacity.
B. They are more likely to have harmful mutations.
C. They are more likely to become an invasive species.
D. They are more likely to have some individuals adapted for survival.
Answer:
D
Explanation:
Looks correct if you go with D
Genetically diverse population make a species more likely to survive a change to the environment because they are more likely to have some individuals adapted for survival. Thus, the correct option will be D.
What are Genetic variations?Genetic variation is the difference in the DNA molecule among different individuals or the differences between different populations of a species. The multiple sources of genetic variation include changes which could result from mutation and genetic recombination.
Mutations are the ultimate sources of genetic variation in a population, however other mechanisms, such as genetic drift, also contribute to it, as well. The populations which are genetically diverse are more likely to have some individuals adapted for survival.
Therefore, the correct option will be D.
Learn more about Genetic variations here:
https://brainly.com/question/848479
#SPJ7
*PLEASE ANSWER IM BEING TIMED!!*
Most ecosystems tend to be complex because
they are found in all climates.
potential competitors in the ecosystem often occupy slightly different niches.
they all contain a wide variety of producers.
of symbiotic relationships within them.
Answer:
the most likely answer is option 3
they all contain a wide variety of producers
the table lists the solutions added to the oil and water mixture
Answer:The table lists the solutions added to the oil and water mixture. Complete the ... The small intestine contains many structures that absorb glucose. Name this ...
Explanation:
