where can you get information about endangered species?
Answer:
The National Wildlife Federation
Explanation:
I think this is where you can learn about endangered species.
Hope this helps!
Which of the following is an example of microevolution?
A. The formation of four new species of fish in a lake over thousands of years
B. A mass extinction that occurs because of major environmental changes in a habitat
C. A change in the frequency of body color in species of beetle over time
D. The formation of two new species of rodent that have been isolated by a mountain range
At Weeks Bay there was a population of 200 alligators. In May of 2006 a new species of catfish was released into the Mississippi. These catfish reproduce very fast and soon become a rich food source for the alligator population. This provides the alligators with the energy needed for more successful reproduction. The following summer of 2007, 100 babies were born and a total of 40 gators died that year. However, the next year in early 2008 there was a terrible drought, causing 100 alligators to die.
2. What is the growth rate (r) of the alligator population during 2007?
Answer:
1. 260
2.
3. drought
4. babies born
6. carrying capacity
7. population density
8. logistic growth
9. exponential curve
Explanation:
why should we conserve ecosystem?
Answer:
Healthy ecosystems clean our water, purify our air, maintain our soil, regulate the climate, recycle nutrients and provide us with food.
A land based global community of organisms is called a?
Which of the following describes the function of genomics and marker-assisted selection?
A. help determine the heritability of a trait and eliminate undesirable traits
B. introduce probiotics and the transfer of microorganisms from other species
C. eliminate undesirable traits and improve desirable traits
D. improve desirable traits and help determine the heritability of a trait
Answer:
D
Explanation:
Improve desirable traits and help determine the heritability of a trait.
Suppose an entire colony of lemmings is chased by a predator and most of them jump off a cliff and perish. Fortunately, a few of them don't jump and re-establish their colony (Re-established Colony) and a few of the jumpers land in the water, survive the fall and establish a second colony on a nearby island (Island Colony). Which of the following characterizes the type of change causing a reduction in the genetic variation that occurs in these 2 colonies?
Answer:
re-established colony is bottleneck effect and island colony is a founder effect
Explanation:
since the re-established colony was created after the death of a large number of lemmings, it was a random event so it is a bottleneck effect. the surviving lemmings that jumped into water made their own, new population, which would be a founder effect
The re-established colony is the result of the bottle-neck effect, while the island colony is the result of the founder effect. In both situations, there will be a reduction in genetic diversity.
What do you mean by Genetic variations?Genetic variations may be defined as the presence of differences in the sequence of genes between individuals organisms of a species.
In an island colony, a founder effect may arise which states that a few individuals of lemmings from a population start a new population with a different allele frequency than the original population.
In the re-established colony, a genetic bottleneck changes the genetic variation, which develops when a population undergoes a drastic reduction in population size.
Therefore, the re-established colony is the result of the bottle-neck effect, while the island colony is the result of the founder effect.
To learn more about Genetic Drift, refer to the link:
https://brainly.com/question/1027688
A light detector the pattern shown. What is the most likely location of the light detector..
A.Location A
B.Location B
C.Location C
D.Location D
Answer:
d
Explanation:
WHAT IS The 2nd phase of mitosis
Answer:
When prophase is complete, the cell enters prometaphase — the second stage of mitosis. During prometaphase, phosphorylation of nuclear lamins by M-CDK causes the nuclear membrane to break down into numerous small vesicles. As a result, the spindle microtubules now have direct access to the genetic material of the cell.
Explanation:
during what stage do you have sleepwalking and sleep talking?
Sleepwalking occurs all through non-REM (NREM) sleep, normally in level 3 of the sleep cycle, which is likewise called deep sleep. Along with other parasomnias like sleep speakme, confusional arousals, and sleep terrors, sleepwalking is assessed as an NREM sickness of arousal.
The giant panda has six fingers on its paws instead of five, and its favorite food is
bamboo. How does this adaptation help the panda to survive?
O It allows the panda to digest the bamboo faster.
It allows the panda to reach the taller bamboo stalks.
It helps the panda climb the bamboo stalks more quickly.
It helps the panda hold large bamboo stalks as it feeds.
Answer:
C:It helps the panda climb the bamboo stalks more quickly.
Explanation:
I got it correct on a quiz
Answer: Option (C) is correct
It helps the panda climb the bamboo stalks more quickly.
Explanation: Hope it helps!
Good luck!
which of the following organisms has the simplest cellular structure? a. bacterium b. earthworm c. mushroom d. sunflower
Bacteria will have the simplest cellular structure. So the correct option is A.
What are prokaryotic cells?A cell type without a genuine nucleus or membrane-bound organelles is referred to as prokaryotic. All the other types of life are eukaryotic, whereas organisms in the categories of Bacteria and Archaea are centered on the prokaryotic cell.
Prokaryotic species, on the other hand, are exceedingly prevalent and account for a large portion of the biomass on Earth.
Unicellular organisms are those that have prokaryotic cells. We refer to them as "prokaryotes." A prokaryotic cell may operate as a live creature thanks to a number of factors. Prokaryotes have a cell membrane covering them at first.
With the help of this membrane, they may engineer a particular environment for metabolic processes within the cytosol. Second, these cells contain both ribosomes and free DNA.
Even though ribosomes are organelles, a plasma membrane does not enclose them.
Therefore the correct option is A.
Read more about prokaryotes, here
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Which of the following is true about removing vegetation around a body of water?
A)
It creates a channel for pollution to flow into the body of water.
B)
It causes a decrease in bank erosion.
C)
It decreases sedimentation.
D)
It increases a source of shelter and food for some species of wildlife.
E)
It reduces the shoreline.
Answer:
its a
Explanation:
i took the quiz on it for edge 2020!!!!!!1
Why was the evolution of cyanobacteria such a significant event in Earth's history
Explanation:
oxygen, a byproduct of that photosynthesis, was released into the atmosphere, changing it in such a way that it may have allowed the evolution of more complex forms of life.
Answer:
Cyanobacteria are blue-green algae that produce chlorophyll and undergo photosynthesis. Oxygen, a byproduct of that photosynthesis, was released into the atmosphere, changing it in such a way that it may have allowed the evolution of more complex forms of life.
Explanation:
Right on ED2021 practice, goodluck!
How is food digested inside me ?
Answer:
After you swallow, peristalsis pushes the food down your esophagus into your stomach. Stomach. Glands in your stomach lining make stomach acid and enzymes that break down food. Muscles of your stomach mix the food with these digestive juices.
which came first the chicken or the egg (this is for a school asignment i promise)
Answer:
fs the chicken
Explanation:
Answer:
two birds that weren't really chickens created a chicken egg, and hence, we have an answer: The egg came first, and then it hatched a chicken.
Explanation:
Provide an example of how your body could maintain homeostasis in response to detecting that the body temperature was falling below 98.5 degrees.
Answer:
Our body produces heat energy.
Explanation:
When our body temperature decreases than normal range, our body produces heat to maintain internal heat in the normal range. Our internal body temperature is regulated by hypothalamus which is a part of our brain. The hypothalamus regulate the temperature and take actions to maintain it in the normal range of temperature which is about 37°C. If our body temperature is too low, the hypothalamus order to the body to generates heat energy and maintains heat in the normal range. The sweat glands remain inactive in order to prevent heat losses.
The opening in leaves necessary for photosynthesis is call the
Answer:
I kinda think it's stomata
What is the primary cause of groundwater shortage?
A)
pollution
B)
use exceeding the rate of replenishment
C)
lack of precipitation
D)
flooding
Answer:
Its B
Explanation:
Edge 2021
Answer:
The correct answer is D. All of the above
Explanation:
E2020!
What organelle regulates cell contents?
A. Ribosome
B. Vacuole
C. Nucleus
D. Cell Membrane
HELP ME PLEASE
if there is 8 g of a substance before a physical change, how much will there be afferwards
Answer:
The correct answer is 8 g.
Explanation:
During a physical change, the identity of the substance does not change, because no chemical reaction occurs. So, after the change, the amount of substance is still the same. Examples of physical changes are changes in the state of matter (solid-liquid-gas). If 8 grams of ice (water in the solid-state) are melted, after the melting process we will have 8 grams of water in the liquid-state, but still 8 grams of water.
I REALLY NEED HELP ASAP!!!!!!!
*I attached a picture but heres the question just in case!"
"The diagram below shows the structures of an animal cell. What is structure 3, and how does it help sustain life?"
Answer: I think it’s B but I am not sure sorry dude
Explanation:
How does energy transfer from the hot water to the cold air
Answer:
humidity and evaporation
Explanation:
Make a list of items in a kitchen that come from land resources.
Answer:
water, Wooden supplies, food from farms, and counters made from minerals.
Explanation:
The list of items in a kitchen that come from land resources include the
following:
CabinetsChairsCutlery etc.What are Land resources?These are the resources which are present on land and examples include
wood, minerals etc.
Land resources are usually refined and used in the production of various
types of things as listed above.
Read more about Land resources here https://brainly.com/question/2067425
HELP! This is a fill in the blank I need a quick answer to.
Cells can make new cells. One cell can (a) ____________ into two new cells. This is called (b)__________________. The process of cell division goes through various states. First, the cell nucleus (c)________________ into two. A new cell surface membrane then (d)____________ the cell divides. The two new cells are called (e)_______________ and they are small. They will grow and become larger. They grow by getting (f)______________ from the food that is eaten. Once they grow to full size they can also (g)_____________. If cells divide more quickly than they should, or divide in the wrong way, (h)_____________ can develop.
Explanation:
A turn
B replicating
C enters
D make
E Big
F fat
*WILL GIVE BRAINLIEST FOR BEST ANSWER DONT ANSWER IF YOU DONT KNOW AND NO VIRUS LINKS OR I WILL REPORT YOU!!!*
What is one result of meiosis?
A. two diploid cells
B. four diploid cells
C. two haploid cells
D. four haploid cells
Answer:
The final product of Meiosis is haploid daughter cells in which each cell has 23 chromosomes. What happens in meiosis is that, the cell is divided twice and this produces four daughter cells. During this process that our sex cells are produced. So the answer for this would be option D.
Explanation:
Answer:
D
Explanation:
Hope this helps! have a great day.
Also the people who post virus links are bots. They dont understand anything
Question and Answer options in photo.
Zoom in if needed
Help :(
Answer:
I belive that the answer is B
Explanation:
I believe that it's B because if the rabit population continued to grow then it will allow the soil to become more fuirtle because of the dropings that the rabbits leave behind. This would cause more plants and growth in the habitat, which would lead to economic growth
I hope this helps!
create a mnemonic for the word CIRCULATORY SYSTEM on how we can take good care of our Circulatory system.
After a month of heavy rain, a formerly clear pond on a golf course is covered with slimy green algae. What do you think happened?
12
1 point
Which type of cell must contain a mutation in order for the mutation to be passed on to offspring (select 2)?
sperm cell
egg cell
skin cell
nerve cell
brain cell
blood cell