Answer:
It's the first one.
Explanation:
A cell only divides once during its lifetime.
Answer:
no. it will divide itself 50-70 times until it's right
4. Which of the following is true about a mutation? A.) it is always damaging to a person B.) it never harms the next generation D.)it may harm the next generation C.) it never passes down diseases
Answer:
D
Explanation:
Mutation can be harmful and it can have no effect.
Answer:
d
Explanation:
it is d because it just is so yw
Calculate the mass of the book on the moon.
On moon surface gravity (g) is 1.6 N/kg
Answer:
The Moon has a smaller mass than the Earth and so the pull of gravity by the moon on an object is smaller than on the earth. The moon has a smaller gravitational field strength. On the Moon, g = 1.6 N/kg.
Explanation:
if u like this answer plz mark as brainlist and follow me
How do the types of resources generated by Kentucky compare with the United States?
compare and contrast the structure of prokaryotic and eukaryotic cells.
Answer:
Prokaryotic -Do not have a nucleusHave DNA arranged in a circular chromosomeDo not have membrane bound organellesSmaller in sizeOlderEukaryotic-Have a nucleus, vacuoles, mitochondria Have DNA arranged in a linear chromosomeHave membrane bound organellesLarger in sizeBoth- Contain: cell membrane, cytoplasm, ribosomes, DNAFunction is to make proteinshave certain parts that help them accomplish their function
What are three ways that pedigrees are beneficial?
Answer:
The three ways that Pedigrees are beneficial are that they help track diseases, determine if the offspring of a person will have that disease and it is a easy to read chart that help track traits in a person (diseases, physical features and etc.)
Explanation:
I was in Biology last year! Hope this helps!
Predict: Why aren't all organisms made of just one cell?
Why do cells divide, instead of simply growing larger?
The living beings that are comprised of more than one sort of cell are known as Multicellular Organisms.
Why organisms are made up of cells?These organelles are liable for an assortment of cell capacities, for example, acquiring supplements, creating energy, and making proteins. Unicellular living beings are comprised of just a single cell that completes each of the capacities required by the organic entity, while multicellular creatures utilize various cells to work.
Cells divide because:
Cells need to separate for your body to develop and for body tissue, for example, skin to restore itself ceaselessly.
Find more information about Cells here:
brainly.com/question/3717876
A golf course is next to a river. The fertilizers they use for the golf course get washed into the river. What might happen as a result of the excess fertilizer?
A. The water warms due to excess nitrogen.
B. Nitrogen-fixing bacteria die off.
C. Fish die due to nitrogen-fixing bacteria.
D. Fish die due to algae blooms.
How many parts can be distinguished in the cerebellum?
Answer:
three lobes
Explanation:
Explanation:
Based on the surface appearance, three lobes can be distinguished within the cerebellum: the anterior lobe (above the primary fissure), the posterior lobe (below the primary fissure), and the flocculonodular lobe (below the posterior fissure).MARK ME AS BRAINLISTCan someone help with this bio please, thank you!
Explain- Why are tobacco,alcohol and ultraviolet radiation listed as carcinogens in the table?
All animals have the same tolerance range.
True
False
Answer:
False
Explanation: Diffrent animals have different tolerance ranges
List the four locations for the sensors that control breathing rate.
Answer:
Dorsal respiratory group – inside of the medulla.
Ventral respiratory group – inside of the medulla.
Pneumotaxic center – various nuclei of the pons.
Apneustic center – nucleus of the pons.
Explanation:
=)
. Human muscle cells compared to blood cells all contain the same number of
chromosomes with the same complement of genes. Yet, the hemoglobin protein
which helps to temporarily bond to oxygen is found in blood cells and not muscle
cells. Which of the following best explains this difference?
Help pls
Answer:
Correct answer to the question: human bone, muscle, and nerve ceils all contain the same number of chromosomes with the same complement of genes. what enables these cells to perform specialized activities
Answer: I think its B
Explanation:
Please help! original answers only please!
How would your chromosomes compare to someone else’s chromosomes?
Answer: since im a male i have an x and y chromosomes and females have x and x if you are female you can reverse this to go your way
Explanation:
If you are a male, and have a sex- linked trait, which parent gave the trait to you? Mom or dad
Answer:most likely your mom
Explanation:
most sexlinked trait are on the x chromosome because it is bigger than the y. and because males only have one x chromosome, which is from the mom, that will determine the trait.
if scientists discovered a new single celled organism that has no membrane bound organelles free floating dna. and a cell well the organism will most likely be classified as which of the following?
a producer
a prokaryote
a eukaryote
a consumer
which organism would be numerous in the ecosystem?
Grass
Rabbits
Snakes
Hawks
Answer:
I think it would be grass.
Explanation:
I am pretty sure it would be grass because there is much more grass on earth then hawks, snakes, and rabbits.
Answer:
I don't think grass count's as for what yr studying.. However, I think its the hawk. Bc if ur where to see who eats who...Bunny>is to>GrassAs for.. Snakes> is to.. Hawks!Explanation:
When air particles are close together what is it called
Answer:
slavery
Explanation:
because i like bbc
Answer:
Compression
Explanation:
The air particles are being pushed together.
Help Me Please
Thanks
Answer:
different types or versions of a gene
Answer:
??
Explanation:
Reproductive system when running
Female-
Male-
Own words 10 pts
Name 1 hazard that has no forecast and 1 that does. Make sure you identify which is which.
Answer:
As other natural hazards, landslides are difficult to predict, and their forecasts are uncertain. The uncertainty depends on the poor understanding of the phenomena that control the slope failures, and on the inherent complexity and chaotic nature of the landslides. One that has forcast is volcanic eruptions.
Explanation:
15. Describe how the structure of the bird respiratory system provides the energy the
bird needs for flight.
Answer:
The bird's respiratory system consists of paired lungs, which contain static structures with surfaces for gas exchange, and connected air sacs, which expand and contract causing air to move through the static lungs.
Birds do not have a diaphragm; instead, air is moved in and out of the respiratory system through pressure changes in the air sacs. ... Bird lungs do not expand or contract like the lungs of mammals. In mammalian lungs, the exchange of oxygen and carbon dioxide occurs in microscopic sacs in the lungs, called 'alveoli.'
Air sacs are found as tiny sacs off the larger breathing tubes (tracheae) of insects, as extensions of the lungs in birds, and as end organs in the lungs of certain other vertebrates. They serve to increase respiratory efficiency by providing a large surface area for gas exchange.
How do birds respire?
Some birds can sing while they fly! ... When the bird takes a second breath, the air in the lungs is sucked into the cranial air sacs -caudal thoracic, cervical, and clavicular. The cranial air sacs act as a holding chamber which provides a small back flow of air into the lungs during expirations.
Explanation:
How are "seasonal" fresh fruits and vegetables readily available 365 days a year?
(ONLY ANSWER IF YOU KNOW)
The excerpt below was written by Henry Stimson in 1941:
The atomic bomb was more than a weapon of terrible destruction, it was a psychological weapon
What did Stimson mean by this statement?
A. US leaders had tricked the Japanese into thinking they were more powerful than they were
B. Skillful use of the atomic bomb could force opponents to make concessions.
C. The atomic bomb was an ineffective way to end war
D. The atomic bomb was not quite as dangerous as many people thought
Answer:
C
Explanation:
The atomic bomb was an ineffective way to end war
Which color is a very hot main sequence star most likely to have?
A: yellow
B: red
C: blue
D: orange
blue is the answer yeah
ANSWER FOR 44 POINTS!!!! Also please answer it like don’t just put random stuff I actually need help here <3
1. A unit used to measure energy is the kcal.
a. What is the source of all
energy in the pyramid?
b. How much energy does this source provide to a square meter of the Earth per year? (Be sure your
answer includes units.)
2. The arrows represent the energy available to the next level of the pyramid.
a. What percentage of the source energy form question 1 is absorbed by the oak leaves? Divide oak levar got by the total sunlight hitting the earth’s surface.
b. By what process do the oak leaves harness this energy?
3. Describe how the consumers in one level of the pyramid obtain energy from the organisms at the previous level of the pyramid.
a. How much energy per year do caterpillars obtain from eating the leaves in a square meter of the oak tree?
b. What percentages the energy that was originally by the oak leaves is passed in to the caterpillars? Divide ye hat the caterpillars got by wag at leaves got.
c. What percentage of the energy absorbed by the oak leaves is not passed on to the caterpillars?
4. Calculate the percentage of the nervy that is transferred from one level of the pyramid to another for all of the levels?
a. Oak leaves to caterpillars (see question 3b)
b. Caterpillars to blue jays.
c. Blue jays to hawk.
5. Calculate the average percentage of energy that is transferred from one level to another using you answers in question 5. Note that this average percentage transfer is similar for many different types of energy pyramid in nature.
6. Explain why an energy pyramid in any ecosystem typically is limited to four or five levels only.
Answer:
If you use this link it gives you most of the answers, if you want I can try to find another link to help with the rest of the questions if you want me to
Explanation:
https://quizlet.com/_30xwac?x=1jqt&i=1ilexf
Answer:
What is the source of all energy in the pyramid in Model 1
Sunlight hitting the earth's surface
How much energy does this source provide to a square meter of the Earth per year? (be sure your answer includes units)
3,190,000 kcals
Label the pyramid levels in Model 1 with the following: primary producers, primary consumers, secondary consumers, and tertiary consumers
Oak tree leaves are the primary producers
Caterpillars are the primary consumers
Blue Jays are the secondary consumers
Hawks are the tertiary consumers
What percentage of the source energy from question 1a is absorbed by the oak leaves in Model 1?
8 %
By what process do the oak leaves harness this energy?
photosynthesis
Describe how the consumers in one level of the pyramid obtain energy from the organisms at the previous level of the pyramid
By consuming them
How much energy per year do the caterpillars in Model 1 obtain from eating the leaves in a square meter of the oak tree?
4,000 kcal
What percentage of the energy that was originally absorbed by the oak tree leaves is passed on to the caterpillars
13.5%
What percentage of the energy absorbed by the oak leaves is not passed on to the caterpillars
84.3%
With your group, list at least three possible uses and/or products of the energy absorbed by the oak leaves that did not contribute to the production of biomass.
Photosynthesis, heat, leaves changing colors
One of the following results when rocks that are under stress from the internal earth processes that produce continents and ocean basins rupture.
A)
earthquake
B)
volcanic eruption
C)
landslides
D)
hurricane
E)
tsunami
Answer:
Its Earthquake
Explanation:
please answer if u know. dont answer if u dont. Corrrect answer gets branliest
Select the statement(s) that support bird beak adaptations as
supporting evidence for the theory of natural selection.
-The top bird with a beak adapted for
insect eating would not succeed on a
Galapagos Island with little insects but
plentiful seeds.
-The middle bird with a woodpecker
beak adapted for seed eating most
likely could dig deeper for larger,
harder covered insects more
successfully than the top bird with the
insect eating beak.
The bottom right bird with a beak
adapted for seed eating would succeed
on a Galapagos Island with plentiful
insects but little vegetation.
The bottom right bird with a beak
adapted for seed eating would succeed
on a Galapagos Island with plentiful
vegetation and few insects.
Answer:
-The top bird with a beak adapted for insect eating would not succeed on a Galapagos Island with little insects but plentiful seeds.
-The middle bird with a woodpecker beak adapted for seed eating most likely could dig deeper for larger, harder covered insects more successfully than the top bird with the insect eating beak.
-The bottom right bird with a beak adapted for seed eating would succeed on a Galapagos Island with plentiful vegetation and few insects.
Explanation:
The theory of natural selection explains that organisms undergo changes in their physical and genetic features that make it possible for them to adjust to their environments. There are different types of birds having different shapes of beaks adapted for life in several environments.
There are insectivorous birds whose beaks are adapted for eating insects, granivorous birds with short, conical beaks for cracking seeds, frugivorous birds adapted for eating fruits, nectivorous for sucking nectars, among others. The adaptations are unique to the birds and determine their survival and feeding habits in several environments.