Answer:
B. Are the insect’s antennae longer than its head?
Explanation:
Dichotomous key refers to the tool or method which helps the scientist to identify organisms.
It uses a specific series of questions which help in segregation of organisms and ultimately help the scientist to identify the organism on the basis of the observations or properties share by the organism.
Example of a simple dichotomous key is shown below.
Similarly, insects can have antennae longer or shorter than their heads. Thus, the question "Are the insect’s antennae longer than its head?" would help in segregating insects based on their antennae length.
happy to help ya:)
The statement B is correct. Are the insect’s antennae longer than its head?
What do you mean by dichotomous keys?A dichotomous key is an important scientific tool, used to identify different organisms, based the organism's observable traits. Dichotomous keys consist of a series of statements with two choices in each step that will lead users to the correct identification.
Moreover, for example, in tree identification, a dichotomous key might ask whether the tree has leaves or needles. The key then directs the user down one list of questions if the tree has leaves, and a different question list if it has needles.
Therefore, dichotomous keys are useful for biological classification as well as identification. The word dichotomous is derived from the Greek words meaning “two parts.” Each step in the key provides two contrasting choices about a characteristic.
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Read the passage from Darwin's journal. sorry its so long
The Amblyrhynchus, a remarkable genus of , is confined to this archipelago; there are two species, resembling each other in general form, one being terrestrial and the other aquatic. This latter species (A. cristatus) was first characterized . . . from its short, broad head, and strong claws of equal length, that its habits of life would turn out very peculiar, and different from those of its nearest ally, the iguana. It is extremely common on all the islands throughout the group, and lives exclusively on the rocky sea-beaches, being never found . . . even ten yards in-shore. It is a hideous-looking creature of a dirty black colour, stupid, and sluggish in its movements. The usual length of a full-grown one is about a yard, but there are some even four feet long; a large one weighed twenty pounds: on the island of Albemarle, they seem to grow to a greater size than elsewhere. Their tails are flattened sideways, and all four feet partially webbed. They are occasionally seen some hundred yards from the shore, swimming about; and Captain Collnett, in his voyage says, “They go to sea in herds a-fishing, and sun themselves on the rocks; and may be called alligators in miniature.” It must not, however, be supposed that they live on fish. When in the water, this lizard swims with perfect ease and quickness, by a serpentine movement of its body and flattened tail—the legs being motionless and closely collapsed on its sides. A seaman on board sank one with a heavy weight attached to it, thinking thus to kill it directly, but when an hour afterwards, he drew up the line, it was quite active. Their limbs and strong claws are admirably adapted for crawling over the rugged and fissured masses of lava, which everywhere from the coast. In such situations, a group of six or seven of these hideous reptiles may oftentimes be seen on the black rocks, a few feet above the surf, basking in the sun with outstretched legs.
What structural adaptation does the A. cristatus lizard have to help them climb rocks?
Awnsers:
A.strong claws
B.black color
C.flattened tail
D.webbed feet
Answer:
A) strong claws
Explanation:
cause if they werent strong they would break if they tried to climb the rocks... also the first guy said webbed feet cause there is a VERY SIMILAR question that asked how they could swim... its in the screenshot of what he was answering
The structural adaptation does the cristatus lizard have to help them climb rocks is strong claws.
Explain your answer briefly?If they were not strong they would break if they tried to climb the rocks. Also the first guy said webbed feet cause there is a very similar question that asked how they could swim.
Thus, option "A" is correct, strong claws.
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How is DNA used as evidence for evolution?
Answer:
Hope this helps!!!!!! I tried my best to answer!
Darwin proposed that evolution could be explained by the differential survival of organisms following their naturally occurring variation—a process he termed "natural selection." According to this view, the offspring of organisms differ from one another and from their parents in ways that are heritable, which happen because of the change in DNA!
Explanation:
Answer:
All species have the same genetic code.
sarah travel to the beach that was 125 miles away for 2.2 hours . what speed was she driving ?
Answer:
56.8mph
Explanation:
Answer:
She was going about 56.82 mph
Explanation:
Divide 125 by 2.2 to know her mileage per hour
125÷2.2≈56.82
Is knowing about physical and chemical changes of food important for a molecular gastronomy chef?
Answer: Yes,
Explanation:
Molecular gastronomy can be defined as a scientific discipline that involves the study of physical and chemical processes that may occur while cooking food. The chefs who are concerned with molecular gastronomy apply their scientific knowledge while cooking. They observe and experiment the change in food appearance, color and fragrance after cooking and try to improve the three parameters to attract the customers.
Which of the following methods would provide the most accurate information for students collecting data about local attitudes concerning the use of alternative fuels for automobiles?
Answer:
tell us the methods dude
Explanation:
dude you need give us the methods so we can tell you
A red blood cell placed in distilled water will swell and burst due to the movement of Your answer: A.salt from the distilled water diffusing into the cell B.water molecules moving by osmosis into the cell C.water from the red blood cell moving into the distilled water
Answer:
B
Explanation:
Water moves from higher potential to lower potential i.e it moves from surounding to the cell.
PLEASE ANSWER ASAP!
How does the tidal force affect the water and beaches on Earth?
Answer:
it makes the water level go up and down
Is a benign tumor considered to be cancer?
Answer:
no. (more info below)
Explanation:
a benign tumor does not interfere or invade nearby tissue or spread to other parts of the body the way cancer can. a tumor is simply an abnormal growth of cells that serves no purpose
hope this helped!
What is it called when vesicles are used to move substances into a cell?
A. Exocytosis
B. Passive transport
She
C. Endocytosis
D. Diffusion
Answer:
The answer is C. Endocytosis
Answer:
the answer is endocytosis
Explanation:
What best explains the relationship between photosynthesis and cellular respiration? A. The higher the rate of formation of products in respiration, the lower the rate of photosynthesis. B. Photosynthesis depends on the carbon dioxide released during cellular respiration. C. Cellular respiration depends on the water released during photosynthesis. D. They have the same set of product molecules.
Answer:
B.
Explanation:
Photosynthesis depend on the carbon dioxide and water released during cellular respiration because these two are the reactants of photosynthesis.
Answer:
Answer: Photosynthesis depends on the carbon dioxide released during cellular respiration.
Explanation:
Got it right on the test.
Which component of the earth’s atmosphere is decreased due to photosynthesis?
ozone
oxygen
hydrogen peroxide
carbon dioxide
Answer:
Carbon Dioxide
Explanation:
Let's see the reaction of Photosynthesis
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
Where carbon dioxide and water are reactants and glucose and oxygen are products which means CO₂ and H₂O are taken from the environment and glucose is supplied to plants while oxygen is supplied back to the environment.
hey please help
When explaining the 'circle of life' to Simba, Mufasa says, 'When we die, our
bodies become the grass...! What does her mean?
Is this accurate?
Answer:
Hope i could help!
Explanation:
Mufasa is saying that when we die our bodies depcomose into the soil and feed the grass giving it minerals and nuitriants !
Several natural processes contribute to speciation, the development of new
species. Which of these conditions is most likely to result in speciation?
A. Genetic drift that occurs in two reproductively isolated populations
B. Genetic recombination in a small population
C. Genetic mutations that occur often in a large population
O D. Gene flow between two geographically isolated populations
SUBNIT
why is syndrome not labeled as a genetic disease?
Because there’s not mutations
Explanation:
If there is no mutation it’s not labeled as a genetic disease
Answer: because there isn’t mutations
Explanation:
Took the test
A semipermeable membrane has a 2 percent salt solution on one side and a
15 percent salt solution on the other side. What will most likely occur?
A. Osmosis of water from a low concentration of salt to a high
concentration
B. Osmosis of water from a high concentration of salt to a low
concentration
c. Active transport of salt until all the salt is concentrated on one
side
D. Facilitated diffusion of salt until both concentrations are equal
Answer:
A
Explanation:
Water naturally travels from a low solute concentration to a high solute concentrated.
The correct answer is B. Osmosis of water from a high concentration of salt to a low concentration. This is due to the process of osmosis, which is the movement of water molecules from an area of low solute concentration to an area of high solute concentration.
What is the context of it ?In this case, the high salt concentration is on one side of the semipermeable membrane and the low salt concentration is on the other side. Therefore, water molecules will move from the side with a higher salt concentration to the side with a lower salt concentration, resulting in the osmosis of water from a high salt concentration to a low concentration.
The other options are incorrect because they do not accurately describe the process that occurs. Option A is incorrect because it states that osmosis will occur from low to high concentration, which is the opposite of what occurs in this situation.
Option C is incorrect because active transport requires energy and is used to move molecules against a concentration gradient, which is not happening here. Option D is incorrect because facilitated diffusion does not require energy and is used to move molecules down a concentration gradient, which is not happening here.
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Describe what would happen to the abiotic factors within the ecosystem if the bacteria were eradicated from the ecosystem.
Answer: If a abiotic factor was to be removed from the ecosystem it can affect the entire ecosystem and all of the organisms that live there
Explanation:
Abiotic means which does not have life for example air, water, soil. Absence of bacteria can influence the abiotic factors in adverse ways.
What are abiotic factors?Abiotic components plays a major role in ecosystem, while biotic components are dependent on abiotic factors for their survival.
Both abiotic and biotic factors are related to each other, if any of these factors changes, it will adversely affect the ecosystem.
For instance, if bacteria were eradicated from ecosystem, it will affect the functioning of abiotic components which can result in increased pH, decreased decomposition etc.
Thus, the abiotic factors will get affected adversely if bacteria were eradicated from the ecosystem.
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Which part of the female reproductive system is highlighted below?
A. Fallopian tube
B. Uterus
C. Cervix
OO
D. Ovary
Answer:
Ovary
Explanation:
I may be wrong because of the way that question is worded/shown tho
Answer:
B
Explanation:
Put the following list in order from beginning to end of a food chain.
1.Sun
2.rabbit
3.worm
4.grass
5.hawk
6.snake
Answer:
1-4-2-6-5-3
Explanation:
Hope it helps
Can u please help me .
Answer: lizards
Explanation:
Answer:
birds
Explanation:
because some birds such as owls, hawks, falcons, herons, etc. eat snakes.
Jason joined a group that would work towards solving the workplace safety issues in his organization. Arrange Jason’s actions according to the stages of development of his group.
Answer:
- Jason asked his fellow group members about their hobbies and interests .
- Jason and another member disagree on what their respective roles should be in the group.
- Jason resolved his differences with the other group members .
- Jason began working with the group members as a complete unit .
Explanation:
The correct order of Jason's actions in the stages of the development of his group would be as mentioned above. After the first step of the formation of the group, the next step is 'storming' in which the ideas are generated. Thus, Jason asks the group members regarding their interests and hobbies as it assists in the generation of effective ideas for problem-solving. The next step would be 'norming' in which the conflicts would arise due to disagreement regarding the respective roles of group members. Then, Jason as a team member would resolve the differences among the team members to reach a common solution. After everyone agrees upon the same idea, Jason can pursue working with the group as a complete unit. These stages are crucial for the effective development of the group and achieve desired results through cooperation and teamwork.
Is kidney disease a genetic or environmental disease? Why?
Brainiest to best answer
Environmental damage due to increased pesticide use
Answer:
I would say A
Explanation:
Use the diagram below to answer questions 3 and 4
3.Identify one trait, other than beak characteristics, that would contribute to the survival
of a finch species and state one way this trait contributes to the success of this
species.
4. Explain Why are certain beak characteristics more advantageous than others?
Answer:
3. Size could
4. Beak's are advantageous because they have to be fit to eat the seeds that they need
Explanation:
size can affect because the bigger birds can fight the smaller birds off when they are eating the same product. Even with same beaks bigger birds will have an advantage.
Describe the distribution of earths surface water
Answer:
b
Explanation:
The map shows the allele frequency of sickled hemoglobin (HbS) and malaria endemicity in Africa.
Which statement best explains the relationship between HbS allele frequency and malaria endemicity in Africa?
When an area is malaria free, the HbS allele frequency is between 0 and 2.02.
When an area is holoendemic, the HbS allele frequency is between 0.52 and 4.04.
When an area is malaria free, the HbS allele frequency is between 12.64 and 18.18.
When an area is holoendemic, the HbS allele frequency is between 0 and 0.51.
Answer:
(A). When an area is malaria free, the HbS allele frequency is between 0 and 2.02.
Explanation:
Answer:
A
Explanation:
An experiment was designed to investigate the effect of caffeine on the rate of the
heartbeat of fruit flies. Two populations of fruit flies were grown in a lab. Both
populations were raised drinking the same type of water and the same type of food.
Both populations were exposed to the same amount of light and regulated
temperature at 20 degrees Celsius. The fruit flies' heartbeats were then monitored
at two hour intervals. The fruit flies of population one were given caffeine five
minutes before their heartbeat was checked. The fruit flies of population two
were not given any caffeine.
what is the control variable
what is the expirimental group
what is the independent variable
Name a controlled variable or constant
was quantitive or qualitative data collected
As a colony of braconid wasps undergo metamorphosis, they live on a hornworm and digest its insides, causing the hornworm to die.This is an example of: Why:
Answer:
Paraitism.
Explanation:
By living on the hornworm and eating the insides, they harm it and cause it to die.
Design a plan that can be used by oil workers everywhere to save ecosystems
Answer:
Oil workers activities involved in the exploration of crude oil and natural gas creates pollution which affects the ecosystem negatively. The various pollutions cause the death of plant and animal life both on land and in water bodies.
The oil workers should be more careful in their activities to prevent oil spillage as much as possible and if there is any at all then there should be adequate measures in the cleaning it up efficiently through biological and harmless chemicals.
Why do two grams of fat provide a different amount of energy than two grams of carbohydrates? (2-3 sentences)
Answer:
Fats are the slowest source of energy but the most energy-efficient form of food. Each gram of fat supplies the body with about 9 calories, more than twice that supplied by proteins or carbohydrates. Because fats are such an efficient form of energy, the body stores any excess energy as fat.
Explanation:
Which community has the greater species diversity?
Select one:
Community Y, because the total number of individuals is greater
Community Y, because the community is richer
Community X, because the distribution of species is more even
Community X, because the community is richer
Answer:
Community X, because the distribution of species is more even
Explanation:
