Answer:
Why does ecological succession occur? Every species has a set of environmental conditions under which it will grow and reproduce most optimally. Ecological succession may also occur when the conditions of an environment suddenly and drastically change.
What is the relationship between the places where malaria is common and where the sickle cell allele is commonly found?
Answer:
At a global scale, the sickle cell gene is most commonly found in areas with historically high levels of malaria, adding geographical support to the hypothesis that the gene, while potentially deadly, avoids disappearing through natural selection by providing protection against malaria.Nov 2, 2010
Explanation:
I hope this helps :)
II. Identify the following pictures and label the parts:
2.
1.
Identify the given process and answer the following:
Answer:
1)
=> The tube-like structure is filament.
=> The bag-like structure above is Anther.
=> As a whole, they both are called stamen.
=> The grains inside anther are pollen grains.
2)
a) Stigma
b) Style
c) Ovary
d) Ovule
e) Carpel
Part III)
a) Cross-Pollination
b) Self-Pollination
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807HELP BIOLOGY 50 POINTS !!!!!!
Biology fill in the blanks
below i attatched the blanks you have to fill
heres the words you have to use
-
lactase
repressor
transcribe
dairy products
e.coli
rna polymerase
operator
transcription
repressor
operator
lactose intolerant
protein
enzymes
bases
--
in the answer just put - the # and the answer for each blank
WILL GIVE BRAINLIEST
Answer:
1. lactose intolerant
2. lactase
3. dairy products
4. e.coli
5. enzymes
6. protein
7. repressor
8. operator
9. rna polymerase
10. transcribe
11. bases
12. repressor
13. operator
14. transcription
Which of the following is an inherited trait?
A. Freckles
B. Being a good reader
C. A birthmark
D. A scar
Answer:
A. freckles
Explanation:
inherited traits are things you are born with that resemble your parents like freckles, color hair and skin even eyes and other such things
The inheritance of traits depends on the genes, not on the somatic cells. In the given choices, freckles are inherited from parents to offspring.
What are freckles?Freckles are caused by either sun or by genes. The presence of this can be due to the genes carrying it.
Genetics and sun exposure is the main cause of freckles. There are a number of genes involved, and they can interact with one another in lots of different ways.
Somatic variations are not likely to get inherited.
Thus, the correct option is A.
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The blue people of Troublesome Creek Kentucky were genetically isolated from the rest of the world for generations. A rare recessive allele that causes people to have a blue tone to their skin, methemoglobinemia, became disproportionately common within this population by way of their genetic isolation. In the last few decades new roads opened leading to the end of this communities isolation. To the surprise of many, the methemoglobinemia phenotype disappeared along with their genetic isolation. Which of the following may best explain the apparent disappearance of this once common trait?
a. Methemoglobinemia did not confer any physical advantage so that the trait was selected against.
b. Methemoglobinemia was probably lethal and all those that carried this trait died and did not have a chance to pass on this trait to future generations.
c. Those that had the traits simply did not have descendents.
d. With the end of genetic isolation gene flow took place.
Answer:
The correct answer would be - d. With the end of genetic isolation gene flow took place
Explanation:
It is given that people of Troublesome Creek Kentucky were isolated and have a rare recessive allele that results in a blue tone to their skin. However, later these isolated people connected with the people from outside, and due which allow them to intermate. Intermating among populations from isolated and people from outside leads to gene flow.
Methemoglobinemia was present in the isolated population as they had both recessive alleles in their genotype and other hand people from outside might have heterozygous or both dominant allele genotypes that make them free from this disorder.
Due to the intermating and gene flow, the number of heterozygous conditions rises and after many generations slowly methemoglobinemia could have disappeared due to the masked recessive allele.
a group of similar cells combine to form ?
Answer:
tissues
Explanation:
How are eukaryotic cell walls different from bacterial cell walls?
give the correct biological term for the following programme where members of the community help patients take their medicines regularly
Answer:
Explanation:
Supervised treatment
Oceans have a high Biodiversity.
true
false
(つ ^_^ )つ Hey There!
Answer : True!
help match the words
1.urbanization
2.
deforestation
3.
burning Fossil Fuels
4.
mining
a.
removal and destruction of trees results in massive species extinctions and disrupts the balance of gases in Earth's atmosphere
b.
releases greenhouse gases that disrupt Earth's natural cycles and climate patterns causing rapid changes to habitats and weather that organisms cannot adapt to
c.
reduces populations and causes extinctions by forcing out native species and replacing their habitat with human civilizations, non-native, and invasive species
d.
poisons and destroys habitats by releasing toxic metals into the environment and destroying surface features
There are ongoing arguments among taxonomists as to which phyla represent the closest relatives of phylum Annelida. Some propose that these worms share a common ancestor with the arthropods (crabs, insects etc.). However, the majority continue to keep the annelids lumped together with the Lophotrochozoa. The reasons for this are many but probably the least disputed comes from:______.
a. the segmented body plan of the annelids.
b. molecular analysis.
c. metamerism.
d. schizocoelous origin of the coelom.
Answer:
a. the segmented body plan of the annelids
Explanation:
lophotrochozoan is a taxonomy of animals that includes annelids, bryozoans, and brachiopods. This taxonomy of creatures was defined in 1995 as the last ancestor of the taxa of worms, mollusks, and annelids. Their classical definition depends on the topology of the spiral tree of life. Annelids have a segmented body part wherein the external morphological features are repeated in every body segment. It allows the animal to become bigger and makes their movement more fat and efficient.Answer:
B: Molecular Analysis
Explanation:
I clicked on the other mans answer and was quite dissapointed to see that it was incorrect, so im writting this to tell you its B.
Mosses and other bryophytes are quite short, while many ferns, cone-bearing plants, and flowering plants can grow quite tall. Which type of tissue found in the taller plants, but not in mosses, is most useful for explaining the tall heights that plants can achieve? *
A. endosperm, which nurtures the developing plant embryo in a seed
B. leaf epidermis, which protects inner leaf tissues from drying out.
C. vascular tissues, which conduct water and nutrients against the pull of gravity
D. apical meristems, which allow growth in the tips of roots and shoots
Answer: C. Vascular tissues, which conduct water and nutrients against the pull of gravity.
Explanation:
Because Moss and other bryophytes lack vascular tissue and sharing a number of other primitive traits.
Answer of the question
Your friend runs out of gas and you have to help push his car. Discuss the sequence of bones and joints that convey the forces passing from your hand, through your upper limb and your pectoral girdle, and to your axial skeleton.?
Answer: The sequence of bones and joints that convey the forces include: From metacarpal bones --> carpal bones --> midcarpal and radiocarpal joints --> radius and ulna bones --> elbow joint --> humerus --> glenohumeral joint --> scapula --> acromioclavicular joint --> clavicle --> sternoclavicular joint --> sternum.
Note: the sign (-->) represents "into the".
Explanation:
The skeletal system is made up of bones of the skeleton, their joints and the skeletal muscles which acts together to bring about different movements in the body. The skeleton of a vertebrate had the following basic plan:
--> The axial skeleton: this forms the main central axis. This is made up of the skull,vertebral column, breastbone (sternum), and ribs.
--> The appendicular skeleton: this consists of parts that articulates with the axial skeleton. This is made up of the forelimbs, hindlimbs, pelvic and pectoral girdles.
From the question given, in an attempt to help push the friend's car, the sequence of bones and joints that convey the forces will pass from METACARPAL BONES of your hand into the CARPAL BONES at the base of your hand. Forces will then pass through the MIDCARPAL and RADIOCARPAL JOINTS into the RADIUS and ULNA bones of the forearm. These will pass the force through the ELBOW JOINT into the HUMERUS of the arm, and then through the GLENOHUMERAL JOINT into the SCAPULA. The force will travel through the ACROMIOCLAVICULAR JOINT into the CLAVICLE, and then through the STERNOCLAVICULAR joint into the STERNUM, which is part of the axial skeleton.
As one pushes against the car, the forces will pass in a sequential manner from the bones of the hand to the bones that are part of the axial skeleton.
• Forces will pass from the metacarpal bones of the hand into the carpal bones at the base of the hand, when one pushes against the car.
• After that the forces will then mediate via the radiocarpal and midcarpal joints into the ulna and the radius bones of the forearm.
• Then the force will move via the arm's humerus, and then via the glenohumeral joint into the scapula.
• The force then will mediate via the acromioclavicular joint into the clavicle, and then via the sternoclavicular joint into the sternum, that is, the part of the axial skeleton.
Thus, in the given case, force gets mediated through the bones of the hand and towards the bones of the axial skeleton in a sequential manner.
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HELP PLSSS !!
Based on this data, what can be concluded about the impact
seasonal changes have on these organisms around the Barents Sea?
A. The availability of solar energy limits photosynthetic productivity in winter months
B. Seasonal Changes have no impact on these organisms
C. During winter months the Diatom and zooplankton population completely die off due
to the lack of sunlight.
D. Due to the availability of solar energy, Diatom mass peaks in July.
Answer:
D. Due to the availability of solar energy, Diatom mass peaks in July.
Explanation:
Diatom are the photosynthetic algae which prepare food for themselves from the solar radiation just like plants. These diatoms produce more biomass or vegetation in the summer season mainly in July because availability of more sunlight in the Barents sea region while on the other hand, less biomass in the winter season due to low temperature and solar radiation which also effects the population of zooplankton organisms. So we can conclude that seasonal changes have a great impact on the organisms living around the Barents Sea.
Answer:
The availability of solar energy limits photosynthetic productivity in winter months
Explanation:
Trust me
5. Which sentence would the author disagree wit
10. What happens when environments change and species cannot adapt?
biological term for the germ layer that gives rise to the nervous system
BIOLOGY CIRCULATORY SYSTEM!! WILL NAME BRAINLIEST IF YOU ANSWER CORRECTLY!!
Answer:
Q1)Heart,Lungs,Arteries,Veins,Vessels
Q2)Blood vessels flow blood throughout the body. Arteries transport blood away from the heart. Veins return blood back toward the heart. Capillaries surround body cells and tissues to deliver and absorb oxygen, nutrients, and other substances.
Please mark me brainliest.
Explanation:
Every year, the tropical rain forest has a rainy season. The forest floor floods, covering once dry areas with water. Some
organisms are unable to tolerate the increased water, so they have to move to other locations to survive.
Which word can best be used to describe this scenario?
(1 point)
O biodiversity
O predation
o disturbance
O damming
Answer:
it is a disturbance because it drasticly changes the enviroment temeraraly disturbing the animals and forcing them to move
The given scenario can be best illustrated by the term disturbance.
What is disturbance?Disturbance in ecology refers to a temporary modification in environmental conditions, which makes a pronounced modification within an ecosystem. Disturbances generally act briskly and with great influence, and changes the physical arrangement or composition of abiotic and biotic elements.
The prime ecological disturbances may comprise:
Fires FloodingTramplingInsect outbreaksEarthquakesClimate changeHuman impactTherefore, in the given scenario, with the increase in the level of water, some of the organisms move to other locations shows that the phenomenon of disturbance has taken place within the ecosystem due to flooding of water.
Thus, the correct answer is disturbance.
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What is the function of the circulatory system. I forgot!
Answer:
to pump blood throughout the body
Answer:
to pump blood throughout the body
Explanation:
The circulatory system contains of arteries and veins that help blood travel throughout the body
4
A floor turtle can use the following instructions:
INSTRUCTION
MEANING
FORWARD n
Move n mm forward
BACKWARD n
Move n mm backward
LEFT
Turn left t degrees
RIGHT
Turn right t degrees
PENUP
Lift the pen
PENDOWN
Lower the pen
REPEAT n
Repeat the following instructions n times
END REPEAT
Finish the REPEAT loop
Answer:
A floor turtle can use the following instructions: INSTRUCTION FORWARD n BACKWARD LEFT RIGHT PENUP PENDOWN REPEAT MEANING Move n mm forward Move n mm backward Turn left t degrees Turn right t degrees Lift the pen Lower the pen Repeat the following instructions n times Finish the REPEAT loop END REPEAT 45° 100 mm start Complete the set of instructions to draw this shape by filling in the blank lines. PEN DOWN 90 REPEAT FORWARD LEFT 6 A student wishes to use floor turtle to draw this shape: Name and explain the meaning of three instructions that the turtle graphics software would need to contain in order to draw the shape. 20 40 10 45 85 Instruction 1 Meaning Instruction 2 Meaning Instruction 3 Meaning [6] E.
How would the Earth system be different if ice sank in liquid water?
Answer:
This ice layer insulates the water below it, allowing it to stay liquid, which allows the life within it to survive. If ice sank, the liquid water on top would also freeze and sink, until all the liquid water became frozen. Water is less dense as a solid, than as a liquid, which is why ice floats.
That is the best I got for you!!!
Answer:
If ice sank in liquid water the liquid water on top would also freeze and sink until all the liquid water became frozen. Feel free to correct me if im wrong
Which organism will have DNA most similar to the turtle?
Answer:
the answer is leopards!
Explanation:
I answered a similar question like this yesterday,
Hope it helps!!
The organism that will have DNA most similar to the turtle's will be other reptiles, particularly those in the same order as turtles, which is Testudines, which is present in Option A.
What is DNA sharing among ancestors?Organisms that are closely related evolutionarily tend to have more similar DNA sequences than those that are more distantly related because they share a more recent common ancestor and have had less time to accumulate genetic differences. Turtles belong to the class Reptilia, which includes other reptiles like lizards, snakes, crocodiles, and birds. Within the reptile class, turtles are classified under the order Testudines, and other members of this order include tortoises and terrapins that share common characteristics with turtles.
Hence, the organism that will have DNA most similar to the turtle's will be other reptiles, particularly those in the same order as the turtles present in Option A.
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question is incomplete, complete question is below
Which organism will have DNA most similar to the turtle?
A)reptiles
B)fish
Red and white colors are incomplete dominance in flowers. What phenotype would you see if the F1 generation if crossed with a red and white parent
a) red
b) pink
c) white
d) red and pink
Answer:
It will be pink
Explanation:
When the hilum of the kidney faces anteriorly, posteriorly, or laterally instead of medially, it is called
Answer:
Answer: skeletal system. When the hilum of the kidney faces anteriorly, posteriorly, or laterally instead of medially, it is called. a malrotated kidney.
Explanation:
The gravitational force between two objects will be very small, unless...
Group of answer choices
the objects are very far apart
the objects have very large masses
the objects are in the solid state of matter
the objects are spinning
Answer:
the objects have very large masses or an object in circular orbit. This has motion but its always being to pulled to earth by gravity.
Greater gravitational forces will be used to attract heavier things, since the gravitational force is directly proportional to the mass of both interacting objects. Two objects are attracted to one another by gravity as their respective masses increase. Thus, option B is correct.
What is the role of large masses in gravitation force?The gravitational pull between two objects changes inversely with their squared distance and directly with their large masses.
As a result, the gravitational force between the two items would decrease to one-fourth of its initial strength when the large masses of both objects are halved without affecting their distance.
Therefore, The objects are either in a circular orbit or have extremely large masses. Although something is moving, gravity is always bringing it dangerously close to the ground.
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How does the mixture of dominant and recessive traits produce certain traits?
Answer:
DD Dd dd
Explanation:
so the answers above are the simplest traits a dominant + recessive trait can produce
Homologous recombination occurs in a heterozygote in which alleles D and d differ by a single base pair. The D allele has a G (a GC base pair) at one position, whereas the d allele has a C (a CG base pair) at the same position. If branch migration causes heteroduplex formation across this position, what is the expected outcome
Answer:
Mismatch DNA repair mechanism recognizes the abnormal base pairing (G-G base pair) and may correct it by converting the D allele to d
Explanation:
The DNA mismatch repair can be defined as a specialized mechanism that recognizes and repairs errors in the nuclotide sequence (such as, for example, bases erroneously incorporated) during DNA replication and recombination. The DNA mismatch repair is a system that also acts to repair the DNA after damage. It has been shown that the DNA mismatch repair mechanism leads to the generation of a DNA molecule with one chain that has the nucleotide sequence arising from DNA repair and one parental chain. In this case, it is expected that the DNA mismatch repair mechanism will identify the abnormal G-G base pairing and then this system may change the D allele to a d allele by introducing a C base instead of a G base in the DNA strand.
Sickle cell anemia is a genetic condition that occurs because of a single point mutation in the DNA gene for hemoglobin. How is this mutation expressed in humans?
A.) The protein coded by the DNA has a different amino acid sequence
B.) The chromosome caring this gene changes shape during cell reproduction
C.) The hormones in the bladder change by increase differences in genes
D.) The carbohydrate code by the DNA has a different structure
Answer:
B.) The chromosome carrying this gene changes shape during cell reproduction
Explanation:
According to this question, Sickle cell anemia is a genetic condition that occurs when the HBB gene that codes for haemoglobin protein undergoes a point mutation. Mutation alters the genetic sequence of a gene.
This mutation expresses itself when the chromosome 11 carrying the mutated gene changes shape during cell reproduction. Normal Red Blood Cell has a disc-shaped structure, however, this mutation causes a change in shape of the chromosome involved.