Answer:
Forms of tropism include phototropism (response to light), geotropism (response to gravity), chemotropism (response to particular substances), hydrotropism (response to water), thigmotropism (response to mechanical stimulation), traumatotropism (response to wound lesion), and galvanotropism, or electrotropism (response to electric current).
Tropism is a response to certain stimuli. A positive tropism is moving towards the stimuli, while a negative tropism is moving away from a stimuli.
Positive Phototropism - Growing towards light
Negative Phototropism - Growing away from light
Positive Thigmotropism- Moving towards touch
Negative Thigmotropism- Moving away from touch
Positive Hydrotropism - Growing towards water
Negative Hydrotropism - Growing away from water
Positive Gravitropism - Growing towards ground
Negative Gravitropism - Growing upwards
All cells are contained within a membrane called the:
A. Cell wall
B. Cytoplasm bilayer
C. Cytosol
D. Phospholipid bilayer
Answer:
Phospholipid bilayer
Explanation:
That is essentially the primary componenent of the cell membrane where phospholipids form two layers.
Suppose you traveled back in time and located the first animals to have evolved feathers. You found that these animals were tree-dwelling ectotherms, able to run quickly but unable to fly. You also noticed that only males had feathers. Which hypothesis of feather evolution would these data most support? Feathers initially evolved in a role associated with ________.
Answer:
Feathers initially evolved in a role associated with sexual selection.
Explanation:
In species where only males had feathers, these feathers can be considered to have evolved into a role associated with sexual selection. This is because in these species, males used their feathers as a sexual attraction for females, in this case, females chose the males that had more attractive feathers to mate and generate new individuals for the species. An example of this can be seen in the peacock, where the tail with lush feathers is only present in males and is intended to sexually attract females.
Which is an example of genetic drift?
Answer:
Explanation:
Genetic drift, gene flow, mutations, and natural selection are responsible for the change in the gene pool over time. Example of genetic drift: a population of rabbits with alleles B and b, both alleles are present in equal frequencies p = 0.5 and q = 0.5 if 10 parents reproduce the probability of having an offspring with alleles B or b is 0.5; however, by chance, a slight difference in the offspring allele frequency might occur due to random sampling. As a result, in the next generation, the allele frequencies will change slightly to new frequencies by chance to become p = 0.4 and q = 0.6. in the following generations, the random sampling of alleles continues and the change in allele frequency will be greatly different from the initial 0.5 frequency due to genetic drift. Even though genetic drifting is one of the factors that participate in the evolutionary process of the genetic pool by increasing or decreasing a certain allele’s frequency, however, it does not influence the adaptation of individuals to the environment since the affected genes may be harmful or beneficial genes.
Resources:
Masel, J. (2011). Genetic drift. Current Biology, 21(20), R837-R838.
Kliman, R. M. (2016). Encyclopedia of evolutionary biology. Academic Press.
Maloy, S., & Hughes, K. (Eds.). (2013). Brenner’s Encyclopedia of Genetics. Academic Press.
Clark, M, A., Douglas, M., & Choi, J. (2018). Biology 2e. Openstax
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what is the term for female reproductive cell ?
Answer:
female reproductive call are called ova
ASAP
What is a benefit of a plant having Chlorophyll and Carotenoids?
A. The plant can absorb energy from multiple wavelengths at once.
B. They can absorb both sunlight and moonlight .
C. It is not a benefit.
D. If one becomes damaged, the other can take over.
Answer:
Carotenoids have two important functions in plants. First, they can contribute to photosynthesis. They do this by transferring some of the light energy they absorb to chlorophylls, which then use this energy to drive photosynthesis. Second, they can protect plants which are over-exposed to sunlight. but the letter answer I don't know
The benefit of a plant having Chlorophyll and Carotenoids is that plant can absorb energy from multiple wavelengths at once. Option A is the right answer.
What are chlorophyll and carotenoids?Chlorophyll is the green pigment that is responsible for the green color in the leaves of plants. Carotenoid on the other hand is a yellow, orange, and red color pigment that is produced in plants, algae, and some other forms of bacteria.
Chlorophyll actively absorbs light from wavelengths in the range of blue to red.Chlorophyll poorly absorbs light from the green range.Hence, carotenoids absorb light in wavelengths that are ineffective by chlorophyll such as the blue-green range to green range.To learn more about chlorophyll and carotenoids, refer:
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awncer this question
https://brainly.com/question/24294790?utm_source=android&utm_medium=share&utm_campaign=question this is the other page of this paper awncer this also plz
Answer:
YES NO YES
Explanation:
state two forces that occur when two metals meet together
Answer: repel forces and attract forces
Which statement is most accurate about alternation of generations?
A. It involves changing the total number of chromosomes in a plant cell.
B. It refers to the haploid and diploid phases of the plant life cycle.
C. It refers to the processes of meiosis and fertilization.
D. It involves only some of the seedless vascular plants.
Answer:
I think no b is the ans ok
What is wrong with this model of the atom?
n P+
Cloud Region
A. The protons are in the wrong place.
B. The neutrons are in the wrong place.
C. The electrons are in the wrong place.
D. The protons and neutrons are in the wrong place.
Answer:
A
Explanation:
The atomic massof an element is defined as (the SUM) of masses of protons and neutrons in an atom
In the electron transport chain
protons are pumped into the intermembrane space
water is split into oxygen and hydrogen
electrons combine with oxygen to form carbon dioxide,carbon dioxide
combines with water to form glucose
In the electron transport chain, protons are pumped into the intermembrane space.
What issues, organs, and systems were involved in this process of heavy breathing
Answer:The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs and blood vessels. The muscles that power your lungs are also part of the respiratory system.
Explanation:
*EARTH SCIENCE CLASS*
1. Scales are used to figure out the ratio of the distance in the map to the actual distance between locations.
A. what is the name of two different types of scales found on maps?
B. how does each scale work?
Answer:
Bar and lexical.
Explanation:
Bar and lexical are the name of two different types of scales that are found on maps. Bar scales are used more frequently in the maps because they represent or show the distance ratio visually instead of in words, while on the other hand, lexical scales may be expressed in words, as a ratio, or as a fraction. Examples are 1:10,000 or 1/10,000. Using map scales is very important in the real world if you want to find out the distance you are traveling.
See the attached image, please!
16 points!
Answer:
Explanation:
From what I can see I think......
16) True
17) False
The corpus callosum separates the brain into two halves. separates the brain into two halves. is a large network of neurons on the cerebral cortex. is a large network of neurons on the cerebral cortex. is a thick band of neural fibers enabling communication between the two brain hemispheres. is a thick band of neural fibers enabling communication between the two brain hemispheres. describes the hemispheres of the brain
Answer:
is a thick band of neural fibers enabling communication between the two brain hemispheres.
Explanation:
A brain can be defined as an organ of soft nerve tissue that is found in the skull of vertebrates and it's typically responsible for the coordination of nervous activities, intellect and sensation.
The human brain consists of various sections and these includes;
I. Anterior Cingulate Cortex (ACC) which resembles a bow or collar surrounding the frontal part of the corpus callosum. This is the frontal part of the cingulate cortex which helps to make complex cognitive functions such as impulse control, decision-making, emotions and empathy.
II. Ventral prefrontal cortex in humans are interconnected with the brain and are responsible for the processing of risk, empathy, fear and social decision-making
III. The Cerebral Cortex: this part of the brain primarily comprises of grey matter, foldable sheets of neurons and forms its outermost layer. Therefore, cerebral cortex is known as the outermost layer of the brain (cerebrum) and thus, makes up half of its weight. It is about 2.5 millimeters in thickness and as such it's able to fold.
The corpus callosum is a large, thick band of C-shaped neural fibers found beneath the cerebral cortex and it's saddled with the responsibility of enabling communication between the two brain hemispheres i.e the right hemisphere and the left hemisphere.
Skin cells are lost daily even without injury. The cell cycle responds by promoting
a. reproduction.
b. repair.
c. synthesis.
d. growth.
Answer:
The correct answer is A
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The cell cycle responds to the daily loss of skin cells skin promoting reproduction. Details about reproduction can be found below.
What is reproduction?Reproduction in biology refers to the process of making copies or duplicate of a cell.
According to this question, skin cells are lost on a daily basis even without injury.
However, the cell cycle through the process of mitosis responds to this loss by making more copies of skin cell in a process of reproduction.
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3. What is the change in a population's allelic frequency due to chance?
natural selection
gene pool
genetic drift
allelic frequency
Answer:
option c is the answer to this question
genetic drift is the answer
What is the powerhouse of the cell called?
Mitochondria is called the powerhouse of the cell.
Hope this helps! Have a great day :)
Mitochondria are known as the “powerhouse of the cell.”
Propose advantages and disadvantages of nuclear energy as an energy source.
Answer:
Advantages:
Produces no polluting gases.
Does not contribute to global warming.
Very low fuel costs.
Low fuel quantity reduces mining and transportation effects on environment.
High technology research required benefits other industries.
Disadvantages:
Waste is radioactive and safe disposal is very difficult and expensive.
Local thermal pollution from wastewater affects marine life.
Public perception of nuclear power is negative.
Costs of building and safely decommissioning are very high.
Cannot react quickly to changes in electricity demand.
I need help which one is it so I can pass summer school
Answer:
the correct answer is will be option b
Explanation:
I hope this help you have a great day
Genetic Code
Project: Asking Questions about the Genetic Code
Active
Instructions
Click the links to open the resources below. These resources will help you complete the assignment. Once you have created your
file(s) and are ready to upload your assignment, click the Add Files button below and select each file from your desktop or network
folder. Upload each file separately.
Answer:
Following are the steps to the given points:
Explanation:
The instructor has described the current task upload process.The teacher helped children with all resources necessary again for the task.Every learner needs to create a document to upload a project and then select a task from the folder.To add a file, a learner should click the add-on button.the systems involved in water content regulation are ________.
Answer:
kidneys, hypothalamus, and endocrine glands.
Explanation:
I don't think theres anything to explain rlly hope this is correct tho
what is lcm
explain..........
Answer:
LCM= Least common multiple
Explanation:
The least common multiple, lowest common multiple, or smallest common multiple of two numbers a and b, generally represented by lcm, is the smallest positive integer divisible by both a and b in arithmetic and number theory.
For example, the LCM of 24 and 36 is 72, and The LCM of 63 and 108 is 756.
OAmalOHopeO
When plasma Ca concentration decreases... 1. Parathyroid hormone level increases 2. Parathyroid hormone level decreases 3. Ca and phosphate reabsorption increases 4. Ca and phosphate reabsorption decreases 5. Ca reabsorption decreases and phosphate reabsorption increases 6. Ca reabsorption increases and phosphate reabsorption decreases
Answer:
2. Parathyroid hormone level decreases
4. Ca and phosphate reabsorption decreases
Explanation:
When plasma Ca concentration decreases, the action of Parathyroid hormone level decreases which leads to Calcium and phosphate reabsorption decreases. Parathyroid hormone is responsible for the increase of calcium and phosphorus in the blood when there is low level in the blood so when the re is huge amount of calcium and phosphorus in the blood, the Parathyroid hormone activity decreases which decrease the reabsorption of calcium and phosphorus decreases.
For guinea pigs, the allele for short hair (H) is dominant to the allele for long hair (h) and the allele for white claws (C) is dominant to the allele for black claws (c). A male guinea pig is mated with a female guinea pig that is heterozygous for both aforementioned traits. Of all of the offspring have short hair and around half have black claws, what is the most probable genotype of the father
Answer:
The father most likely has HH and cc as its genotypes.
Explanation:
After several miles of running and sprinting in intervals, the runner’s muscles ache and feel fatigued. Which is the best explanation for what has occurred?
a. The runner's muscles have accumulated lactic acid.
b. The runner’s body has failed to perform cellular respiration.
c. The runner’s cells are relying completely on aerobic respiration.
d. The runner’s muscles have accumulated carbon dioxide.
Answer:
The correct answer is A!
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After several miles of running and sprinting in intervals, the runner’s muscles ache and feel fatigued. The runner's muscles have accumulated lactic acid, this is best explanation.
what is the function of lactic acid ?Lactic acid is the component for the proper working of the body as It increases in concentration during exercise but does not cause muscle soreness.
Lactic acid is integral acid for different bodily function and is not solely a byproduct of exercise, has three main uses in the body:
It mainly involve in energy production mitochondria, act as a precursor for producing glucose and a signaling molecule
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omplete the passage to describe the function of the heart.
The pumping of the heart involves the alternate contraction and relaxation of the chambers of the heart. The upper chambers of the heart are called
, and the lower chambers of the heart are called
.
Answer:
The pumping of the heart involves the alternate contraction and relaxation of the chambers of the heart. The upper chambers of the heart are called at atria and the lower chambers of the heart are called ventricles.
When does crossing over occur in meiosis
Answer:
Crossing over occurs during prophase I of meiosis before tetrads are aligned along with the metaphase I.
Which of the following workers is a maintenance staff member?
Why are sponges considered as parazoa
Answer:
Sponge parazoans are unique invertebrate animals characterized by porous bodies. This interesting feature allows a sponge to filter food and nutrients from water as it passes through its pores.
easy biology question below first correct answer gets brainliest
Answer:
Explanation:
Following the rule of "like dissolves like", the hydrophilic head of the phospholipid molecule dissolves readily in water. The long fatty acid chains of a phospholipid are nonpolar, and thus avoid water because of their insolubility
