Homologous structures
What is an example of codominance?
A flower with pink petals that results from the cross
a of a plant with red petals with a plant with white
petals
b Blood type o
c Skin color
A flower with red and white petals that results from
d the cross of a plant with red petals with a plant with
white petals
Answer:
Explanation:
dnanananans
Answer:
It’s D
Explanation:
I jus did it.
HELP ME!!
what is the Chemical Equation for Cellular Respiration???
(I am bad at biology!!)
Answer:
Cellular Respiration: C6H12O6 + 6O2 → 6CO2 + 6H2O.
Explanation:
Which of the four factors that affect evolution apply to the finches that the Grants studied? Use
evidence from your research to support your answer. (15 points)
Answer:
Natural Selection in Real Time
"When we made the comparison between the size of the offspring generation and the population before selection, we found a measured, evolutionary response had taken place and it was almost identical to what we had predicted."
-Peter Grant
Darwin thought that evolution took place over hundreds or thousands of years and was impossible to witness in a human lifetime. Peter and Rosemary Grant have seen evolution happen over the course of just two years.
The Grants study the evolution of Darwin's finches on the Galapagos Islands. The birds have been named for Darwin, in part, because he later theorized that the 13 distinct species were all descendants of a common ancestor. Each species eats a different type of food and has unique characteristics developed through evolution. For example, the cactus finch has a long beak that reaches into blossoms, the ground finch has a short beak adapted for eating seeds buried under the soil, and the tree finch has a parrot-shaped beak suited for stripping bark to find insects.
The Grants have focused their research on the medium ground finch, Geospiza fortis, on the small island of Daphne Major. Daphne Major serves as an ideal site for research because the finches have few predators or competitors. (The only other finch on the island is the cactus finch.) The major factor influencing survival of the medium ground finch is the weather, and thus the availability of food. The medium ground finch has a stubby beak and eats mostly seeds. Medium ground finches are variable in size and shape, which makes them a good subject for a study of evolution.
The first event that the Grants saw affect the food supply was a drought that occurred in 1977. For 551 days the islands received no rain. Plants withered and finches grew hungry. The tiny seeds the medium ground finches were accustomed to eating grew scarce. Medium ground finches with larger beaks could take advantage of alternate food sources because they could crack open larger seeds. The smaller-beaked birds couldn't do this, so they died of starvation.
In 1978 the Grants returned to Daphne Major to document the effect of the drought on the next generation of medium ground finches. They measured the offspring and compared their beak size to that of the previous (pre-drought) generations. They found the offsprings' beaks to be 3 to 4% larger than their grandparents'. The Grants had documented natural selection in action.
While beak size is clearly related to feeding strategies, it is also related to reproduction. Female finches tend to mate with males that have the same size beaks. These factors together can add to the development of new species.
The Grants return each year to Daphne Major to observe and measure finches. They have been collecting data on the finches for over 25 years and have witnessed natural selection operating in different ways under different circumstances.
Hummingbirds drink nectar from flowers. Which beak shape would BEST help a hummingbird survive in a place where the flowers are shaped as shown in the picture?
THIS IS HISTORY BTW
Answer:
A
Explanation:
the beak is long and curved so the A beak would be perfect (give BRAINLEST please)
Answer:
The best answer would be A.
Explanation:
Answer A. is the best answer because the beak is longer and curved easier for drinking.
A pea plant with purple flowers is crossed with a pea plant that has white flowers. All the offspring are purple, so we can conclude that
Answer:
That the purple trait is dominant and the purple pea plant has a gene type of PP and the white flower has a gene type of pp
What happens to food and air when they enter the body?
So long ago they used a sundial to tell it. It starts with a “t” if you want me to spell it – what is it?
Answer: time
Explanation:
HHEELLPPP!!!! this is also due in 45 mins
This is all in the legs btw it would help a lot if u could answer it
Look online and find out what each muscle group does and what at least 5 muscles do and list that information.
Flexor Group-
Peroneal Group-
Hamstring Group-
Gluteal Group-
Quadricep Group-
Extensor Group-
Sartorius Group-
Adductor Group-
Answer:
Flexor Group- group of five muscles mainly in charge of movements of forearm, hand and fingers.
Peroneal Group- these muscles play a role in the movements of the ankle joint and support of the foot.
Hamstring Group- The hamstrings are a group of muscles and their tendons at the rear of the upper leg. They include the biceps femoris, semitendinosus, and semimembranosus. The hamstrings flex the knee joint and extend the thigh to the back side of the body.
Gluteal Group- The gluteal muscles are a group of three muscles which make up the buttocks: the gluteus maximus, gluteus medius and gluteus minimus. The three muscles originate from the ilium and sacrum and insert on the femur.
Quadricep Group- The Latin translation of 'quadriceps' is 'four headed,' as the group contains four separate muscles: the vastus lateralis, vastus medialis, vastus intermedius, and the rectus femoris. Each of the vastus muscles originates on the femur bone and attaches to the patella, or kneecap.
Extensor Group- The superficial extensors of the forearm are a group of six muscles situated in the superficial posterior compartment of the forearm. These muscles include the brachioradialis, extensor carpi radialis longus, extensor carpi radialis brevis, extensor digitorum, extensor carpi ulnaris and extensor digiti minimi.
Sartorius Group- couldnt find anything
Adductor Group- The adductors are a group of muscles, as the name suggests, that primarily function to adduct the femur at the hip joint. Although they are all located somewhere along the medial side of the thigh, they originate in different places at the front of the pelvis.
Explanation:
Brainliest pleeeeeeeeeeease
Which characteristic do all protists have?
They all make or consume food.
They all survive in any environment.
They are all unicellular.
They all have flagella.
Answer: They all survive in any environment.
Explanation: Protists have the ability to survive in any environment, even extreme environment. They can live in the ocean, desert or extremely hot environment, or even a extremely cold environment.
I'll explain why the others aren't correct.
Protists can be both unicellular and multicellular, they're not always unicellular. Kingdom Protista contains all eukaryotics, so they're not always unicelluar.
Protist cannot make or consume food. Animals consume food, and plants make food, not protista. Yes they're many plant-like protists out there, such as algae, they get their food from the sun above. So all protists cannot make or consume food.
Protist does have flagella, but not all protists. Protists that are motile and generate movement have flagella, meaning they move. Not all protist move, like plants can't move. So, not all protists have flagella, meaning they can move.
Let me know if you have any questions.
Sincerely, Lily :)
ANWSER ASAP 20 POINTS!!!1 RIGHT AWNSER GET BRAINLIEST
Which of these statements best explains how natural selection provides evidence to the scientific theory of evolution? (4 points)
It shows how organisms choose to adapt to changing Earth conditions.
It proves that natural selection always leads to greater complexity in organisms.
It shows how organisms with perfect traits can be created to suit the environment.
It proves that some organisms with specific adaptations survive better than others.
Answer:
It's either the 3rd or 4th one.
Explanation:
Evolution is change in the heritable characteristics of biological populations over successive generations. These characteristics are the expressions of genes that are passed on from parent to offspring during reproduction.
sub atomic particles found in protons and neutrons are what?
Answer:
thus , protons and neutrons are no more indivisible than atoms are ; indeed , they contain still smaller particles , which are called quarks . quarks are as small as or smaller than physicists can measure
Explanation:
give an example of how an organism can use surface tension?
The Rolling Plains ecoregion lies west of the Crosstimbers area of Texas and at elevations between 900-4000 ft. The Rolling Plains is a part of the central United States Great Plains system. Like the Crosstimbers ecoregion, it has rolling hills. These topographical features are due to the several rivers that flow through this ecoregion.
The rivers in the area weather and erode the land, forming __________ in this area.
Answer: plateaus
Explanation: there not canyons so you can cross that off and its not the dunes nor the deltas so if you look at the picture you can tell it is the plateaus
Rivers in the area weather and erode the land, forming a mouth in this area.
MouthIt is the place where a stream of water, such as a river, empties. Thus, a river can have as its mouth another river, a large lake, a pond, a sea or the ocean.
With this information, we can conclude that the rivers in the area weather and corrode the land, forming a mouth in this area.
Learn more about Mouth in brainly.com/question/7998630
Can someone help me fill in the top one not the bottom one.
Here are the words for top blank one:
Broadest
Species
Specific
Domain
Answer:
specific is the correct answer
A strand of RNA has the sequence AUUGCGCGAA. What explanation can be made about how this strand came to be?
A. The RNA strand formed from the rearrangement of the bases in a DNA strand.
B. The RNA strand broke off from a DNA strand that had a much longer genetic code.
C. The RNA strand was transcribed from a DNA strand with the sequence TAACGCCTT.
D. The RNA strand was translated from a DNA strand that had the sequence UAACGCCUU.
A strand of RNA with the sequence "AUUGCGCGAA" has been transcribed from a DNA strand with the sequence "TAACGCCTT". Thus, the correct option is C.
What is Transcription?Transcription is the process of formation of mRNA from the DNA in the nucleus of cell. The machinery involving all the enzymes and nucleotides are present in the nucleus for the development of mRNA. mRNA is the messenger RNA which is transcribed from DNA.
The sequence of mRNA formed from the DNA in a cell is complementary to the leading strand of the DNA in which only the thymine residues are replaced by the uracil residues. Adenine base pairs with uracil and thymine residues base pairs with adenine residues. Cytosine residues base pairs with guanine residues and vice versa.
Thus, the sequence of DNA from which mRNA has been synthesized is "TAACGCCTT".
Therefore, the correct option is C.
Learn more about RNA here:
https://brainly.com/question/20914096
#SPJ6
A molecule that can mix with water and a store for energy in the body
Answer:
Glucose
Explanation:
Glucose is a source of energy and it is stored in the body (in the form of glycogen) and it can also dissolve in water
Answer:
liver is the answer plllllllll
A small group of deer are forced to leave the herd in search of a new habitat with more food. If the allele frequencies of the small group is identical to that of the large population, which of the following statements apply?
Read this question carefully!
1Points
A
Genetic drift has not occurred.
B
The bottleneck effect has happened.
C
The two groups will become different species.
D
The genetic variation of each group will be altered.
Answer:
the genetic varation of each group will be altered
In the case when the allele frequencies of the small group should be same to the large population so here the genetic variation for each group should be changed.
What is genetic variation?It is the variation that shows the presenting of the differences with respect to the sequence of genes lies between the individual organism with respect to the species. Since the allele frequencies of the small group should be same to the large population so here the genetic variation for each group should be changed.
Learn more about allele here: https://brainly.com/question/18999457
Which two organelles are involved in the move-
ment of a cell in its environment?
a. microubules and centrioles
b. fiagella and contractile vacuoles
c. centrioles and the cell wall
d. cytoskeleton and lysosomes
Answer:
Flagella and contractile vacuoles
In a solution, salt is considered the
solute
solvent
Answer:
Solvent
Explanation:
Please HELP!!WILL GIVE BRAAIN!!!
Answer:
False
Explanation:
Pluripotent stem cells are master cells. They're able to make cells from all three basic body layers, so they can potentially produce any cell or tissue the body needs to repair itself.
Pluripotent stem cells have the ability to undergo self-renewal and to give rise to all cells of the tissues of the body (but not the placenta).
What keeps earths temperature suitable for life
Answer: The Earth has a suitable climate for the existence of all forms of life because of moderate amount of carbon dioxide, which is the driving factor for the survival of life forms. The temperature of planet Mercury ranges from 200°c below freezing to 375°c above. Hopes this helps. Can u pls pls pls mark me as brainliest
Explanation:
It's a matching question. I will give brainliest.
Answer:
1. B
2. C
3. D
4. A
Hope this helps
1. Cerebrum : b. the thinking part of the brain
2. Cerebellum : c. controls balance, movement, and coordination
3. Brain stem : d. keeps you breathing, digest food, and blood circulating
4. Spinal cord : a. a bundle of nerves that sends messages to your brain
HOPE IT HELPS
PLEASE MARK ME BRAINLIEST
✿(◕ᴗ◕)✿
10 points
41
Which statement best describes how a vaccination can help protect
the body against disease?
Vaccines directly kill the pathogen that causes the disease,
Vaccines act as a medicine that cures the disease
Vaccines cause the production of specific molecules that will react with and destroy
certain molecules
Vaccines contain white blood cells that engulf harmful germs and prevent them from
spreadin throughout the bodyg
vaccines cause the production of specific molecules that will react with and destroy
While taking a nature walk with their class, students observe many mushrooms growing among the fallen leaves on the forest floor.
– What is the role of mushrooms in the forest ecosystem?
– What other type of organism performs a similar role in the forest ecosystem?
This is for a writing thing can u guys write about it I really need help thank u
Answer:
The mushrooms act as decomposers, there are many other species that also does this such as worms
What is Endosymbiotic Theory ?
How does it explain Eukaryotic Cells?
What evidence do scientists have to support this theory ?
Based on the video of the amoeba sisters.
Answer:
1.States that organelles such as chloroplasts and mitochondria were once free-living prokaryotes which eventually lived symbiotically within larger cells, forming modern day eukaryotes.
2.Eukaryote, any cell or organism that possesses a clearly defined nucleus. The eukaryotic cell has a nuclear membrane that surrounds the nucleus, in which the well-defined chromosomes (bodies containing the hereditary material) are located.
Explain two ways to study biotic and abiotic factors within an ecosystem.
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Ecologists study both biotic and abiotic factors and how they interact. Therefore, ecologists often use methods and data from other areas of science, such as geology, geography, climatology, chemistry, and physics.
Abiotic factors refer to non-living physical and chemical elements in the ecosystem. Abiotic resources are usually obtained from the lithosphere, atmosphere, and hydrosphere. Examples of abiotic factors are water, air, soil, sunlight, and minerals
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Through geology and geography, we can study biotic and abiotic factors within an ecosystem.
How can you study biotic and abiotic factors within an ecosystem?The interactions between biotic factors, such as organisms like flora and fauna, and abiotic factors.
For example, all animals (biotic factors) breathe in oxygen (abiotic factor). All plants (biotic factor) absorb carbon dioxide (abiotic factor) and need water (abiotic factor) to survive.
Thus, geology and geography, are the two ways to study biotic and abiotic factors within an ecosystem.
To learn more about biotic and abiotic factors click here:
https://brainly.com/question/1542938
Color-blindness results from both the expression of a single recessive sex-linked allele (b.)
Which of the following is a genotype of a colorblind male?
XbY
XBXB
XBY
XbXb
Answer:
XbY
Explanation:
because the question asks genotype of a male, the chromosomes would be XY, so XBX and XbXb can be eliminated leaving only XBY and XbY. XBY is incorrect because the question states that colorblindness is represented by lowercase b, so the correct answer is XbY.
The more classification levels that two organisms share,
A) Group of answer choices
B) The easier it is to tell them apart
C) The more directly related they are
D) They closer together on Earth they live
The more twins they are
Answer:A or the more twins they are
Explanation:
Which organelles make up animal cells? pls i have an assignment in 1 hr
Answer:
Organelles in animal cells include the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, vesicles, and vacuoles
Explanation:
A cross of a red cow (RR) with a white bull (WW) produces all roan offspring (RW). This type of inheritance is known as:
sex-linked
complete dominance
codominance
incomplete dominance
Answer:
Codominance
Explanation:
Both parents carry a dominant trait, so the offspring will have a coat of main colour, and also some hairs of another colour.