The photosynthetic alga appears reddish-pink due to the production of pigments, such as astaxanthin, as a protective mechanism against high levels of UV light in both Antarctica and high altitude snowfields.
The reddish-pink appearance of the photosynthetic alga in Antarctica and high altitude snowfields can be attributed to the production of specific pigments, such as astaxanthin. These pigments serve as a protective mechanism against the damaging effects of high levels of UV light.UV light can be harmful to organisms as it can induce oxidative stress and damage cellular components. In response, certain algae, including Chlamydomonas nivalis, synthesize pigments like astaxanthin, which act as natural sunscreens.
Astaxanthin absorbs UV light, particularly in the higher energy range, and dissipates it as heat, protecting the algal cells from harmful radiation.
Learn more about UV light here:
https://brainly.com/question/29824313
#SPJ11
seals in an aquarium will repeat certain behaviors, such as slapping and barking, that prompt people to toss them a herring. this best illustrates:
In an aquarium, seals will repeatedly exhibit actions like slapping and barking that cause people toss them a herring. This is an example of operant conditioning.
What is operant conditioning?Operant conditioning, often known as instrumental conditioning, is a teaching strategy that use rewards and penalties to alter behavior. Through operant training, actions that are rewarded are more likely to be repeated than actions that are penalized.
Over the past 60 years, the practice of training animals with positive reinforcement has grown in popularity. It gave rise to the training methods used today, where the animals assist with their own care and show visitors their natural behaviors. Operant conditioning is a type of training where the seals' actions are altered by positive reinforcement, increasing the likelihood that they would repeat the behaviour when requested.
We employ a number of reinforcements when working with seals, but the most well-liked is a fish snack. Trainers also offer games and even cubes of gelatin. A seal receives a fish as compensation for complying with a command. The trainers will wait a short while before trying again if the seal doesn't comply with their instructions.
To learn more about operant conditioning visit:
https://brainly.com/question/13044823
#SPJ4
Which renewable energy resource comes from burning plant material.
Answer:
Biomass
Explanation:
Biomass is renewable organic material that comes from plants and animals. Biomass was the largest source of total annual U.S. energy consumption until the mid-1800s. Biomass continues to be an important fuel in many countries, especially for cooking and heating in developing countries
during the denaturation of ribonuclease, which level of protein structure was maintained?
Which degree of protein structure been preserved throughout ribonuclease's denaturation. All that was kept was the basic protein structure. Its form determines how a protein works. Because of this, some proteins may not function as they should.
What exactly does denaturation entail?In biology, the process of denaturation involves changing a protein's molecular structure. The process of denaturation entails the splitting of many of the insufficient linkages, or bonds, within a protein complex that are in charge of the protein's highly ordered structure in its native (natural) state. These weak linkages or bonds include hydrogen bonds, for example.
What does denaturation look like?Some of a food's proteins denature during cooking. This is the reason that cooked meat firms up and boiled eggs become hard. Egg whites, which are normally primarily egg albumins in water, are a classic illustration of proteins becoming denaturized.
To know more about denaturation visit:
https://brainly.com/question/1696096
#SPJ4
Animal cells are considered eukaryotic and bacteria cells prokaryotic. This is because:.
Answer: This is because animals (like humans) have more organelles to store in our bodies than bacteria. This makes sense because without all of our organelles we wouldn't be able to function properly. This is just another one of those form=function things.
-AnaMae10
Answer:
eukarytic cells have a cell wall and prokaryotic have just a membrane also they do not have a true nucleus.
Explanation:
Which topic do biologists ask questions about and study using scientific methods?
A)Planets and stars
B)The meaning of existence
C)Living things and the environment
D)The value of science
Answer:C
Explanation:
Answer: C. Living things and the environment
Explanation: It's correct!
Why does having a genetically diverse population make a species more likely
to survive a change to the environment?
A. They are more likely to have harmful mutations.
B. They are more likely to become an invasive species.
C. They are more likely to reach carrying capacity.
D. They are more likely to have some individuals adapted for survival.
Answer:
D
Explanation:
When a population is genetically diverse there is a higher probability for some individuals in that population to survive during harsh conditions such as drought due to their highly resistant genes.
4. What two energy sources is produced by
Renewable and Non-renewable Sources?
Hurry quickly please!!!
Answer:
Renewable resources: timber and wind
Explanation:
nonrenewable resources: coal and natural gas
when a nurse draws blood, it is not uncommon for the needle to penetrate which muscle near the cubital region?
Answer:
pronator teres
Explanation:
PRONATOR TERES
(Just finished my exam)
Enzymes influence chemical reactions in living systems by
a. Combining with excess hydrogen to form gaseous wastes
b. Affecting the rate (speed) at which reactions occur
c. Providing the substrate required for the reaction to occur
d. Absorbing water released when polymers are formed
Answer:
I think its b. affecting the rate at which reactions occur
which group of organisms represents the outgroup in the clade that includes only crocodilians, ornithischian dinosaurs, saurischian dinosaurs, and birds?
Archosaurs are a group of organisms that belong to the same clade that is Dinosauria.
There is abundant evidence that birds developed within the clade Dinosauria, which is broken down into two groups, dinosaur hips (Saurischia) and bird hips (Ornithischia). Despite the names, it wasn’t bird-hipping dinosaurs that created modern birds. Instead, Saurischia split into two groups: one that included long-necked, herbivorous dinosaurs like Apatosaurus, and the second group that gave rise to birds as bipedal predators known as theropods.
There are many similarities between late (maniraptoran) dinosaur fossils and birds, particularly in the structure of hip and wrist bones and the presence of a wishbone formed by the fusion of clavicles.
To learn more about Archosaurs, refer to the link:
https://brainly.com/question/13048824
#SPJ1
explain why a transparent epidermis is an adaptation for photosynthesis
Answer: A leaf’s upper epidermis is generally transparent that allowing the light to enter the leaf.
PLEASE HELP
What is a limiting layer and what does it prevent?
Answer:
The lower limit of the zone of suitable soil is defined as the limiting zone. The limiting zone is any layer that prevents proper treatment of wastewater. Such a layer causes very slow (or very fast) movement of water through the soil profile
may this help u
What is the
purpose of
alveoli?
A. They warm air and dissolve gases to be put into
the blood stream.
B. They transport air from the trachea to the
bronchioles.
C. They make sound as air passes over them.
D. They filter the air coming into the body.
in an experiment, frog’s eggs were placed in a salt solution. after several hours their mass increased significantly. we can therefore conclude that, compared to the frog’s eggs, the solution was
Based on the observation that the mass of frog's eggs increased significantly after being placed in a salt solution for several hours, we can conclude that the solution was hypertonic.
A hypertonic solution has a higher concentration of solutes than the solution inside the cells, causing water to move out of the cells and into the surrounding solution by osmosis.
This can lead to an increase in mass of the cells as they take up more solutes from the surrounding solution to maintain homeostasis.
In the case of the frog's eggs, the salt solution likely caused water to move out of the cells, leading to an increase in mass as the cells took up more salt to balance the concentration gradient.
This experiment can be used to study the effects of different solutions on cellular osmosis, and is a common technique in biological research.
In summary, the significant increase in mass of frog's eggs after being placed in a salt solution suggests that the solution was hypertonic, with a higher concentration of solutes than the solution inside the cells.
To know more about hypertonic solution click on below link:
https://brainly.com/question/8984839#
#SPJ11
Please help me fr !!
A snake that eats a frog that has eaten a insect that fed on a plant is a:
a - second level producer
b - first level consumer
c - first level producer
d - third level consumer
Answer:
Ok,
If you are asking for the snake, then - third level consumer
If you are asking for the frog ,then - second-level consumer
If you are asking for the insect ,then - first-level consumer
And for plant - first level producer
Hope it helps!
Which statement besisummarizes how viruses cause disease
A Viruses use cell parts for nutrients
B. Viruses reproduce best in warm, moist environments
C. Viruses use living cells to make new viruses
D Viruses absorb nutrients from another organism's body
What was the cause of Dede's condition?
Question 1 options:
only a bacteria infection
bacteria infection plus immune system issues
only a virus infection
virus infection plus immune system issues
according to biological theories, the basic determinants of human behavior may be inherited. select one: true false
The given statement," According to biological theories, the basic determinants of human behavior may be inherited," is True because according to biological theories, human behavior may be influenced by inherited factors such as genetics, hormonal imbalances, and brain chemistry.
This perspective, often referred to as biopsychology or behavioral neuroscience, suggests that the biology of the brain and nervous system underlies all behavior, including human behavior. This includes the genetic and neurological factors that contribute to the development of individual differences in temperament, personality, and other psychological traits that shape behavior. However, it is important to note that biological factors are not the only determinants of behavior, as environmental and social factors also play a role
Learn more about human behavior here:
https://brainly.com/question/2264149
#SPJ11
What processes can transform metamorphic rock into sediment? question 3 options: weathering and erosion heat and pressure compaction and cementation crystallization and solidification
Metamorphic rocks are rocks that are formed as a result of heat and pressure. These rocks can be broken down into smaller pieces and turned into sediments by the process of weathering and erosion.
Therefore, the processes that can transform metamorphic rock into sediment are weathering and erosion.Weathering is the process by which rocks are broken down into smaller pieces by physical, chemical, and biological processes. Physical weathering occurs when rocks are broken down by mechanical forces such as wind, water, and ice. Chemical weathering occurs when rocks are broken down by chemical reactions with water, air, or other substances. Biological weathering occurs when rocks are broken down by the actions of living organisms such as plants, animals, and bacteria.
Erosion is the process by which sediments are moved from one location to another by wind, water, or ice. This process can occur naturally or be caused by human activities such as mining, construction, and farming. Erosion can also occur as a result of natural disasters such as floods, landslides, and hurricanes.
To know more about Metamorphic rocks visit:
https://brainly.com/question/32883112
#SPJ11
A student is using the high-power objective lens of a compound light microscope to look at a micro-organism. The image the student sees is out of focus. What should the student do to focus the image?
how do you convert 0.00000032 into scientific notation?
Answer: 3.2 x 10^ -7
Explanation: move the decimal until there is one number in front of the decimal and then count how many places you moved the decimal and because it becomes a smaller number, the exponent is negative
0.00000032 in scientific notation is 3.2 x 10^(-8).
To convert 0.00000032 into scientific notation, you can follow these steps:
1. Identify the non-zero digit: In this case, the non-zero digit is 3.
2. Count the number of decimal places to the right of the non-zero digit: In this case, there are 8 decimal places to the right.
3. Write the non-zero digit followed by a decimal point: 3.
4. Write the remaining digits without the leading zeros: 2.
5. Multiply the result by 10 raised to the power of the number of decimal places: 3.2 x 10^(-8).
Therefore, 0.00000032 in scientific notation is 3.2 x 10^(-8).
In scientific notation, the number is expressed as a decimal number between 1 and 10 multiplied by a power of 10. This allows us to easily represent very large or very small numbers in a compact and standardized format.
To know more about scientific notation:
https://brainly.com/question/19625319
#SPJ6
Which organisms are likely to inflict pain on you?
Answer:
I say leeches and spiders they are the most likely inflict pain to me .
how many chromosomes will en egg cell of the weed have?
Answer:
Since the gametes are formed as a result of meiosis, therefore, each gamete that is sperm cell and egg cell will have 28 chromosomes each.
Explanation:
Testing the deep tendon reflexes gives the examiner information regarding the intactness of the?
Testing the deep tendon reflexes gives the examiner information regarding the intactness of the: reflex arc at specific levels in the spinal cord.
Tendon reflexes are associated with muscle tension and also known as muscle stretches or reflexes are a feedback mechanism.
Deep tendon reflexes are categorized as bicep, triceps, brachioradialis, ankle, and patellar.
Each reflex is associated with a particular muscle or root and also analysis the integrity of the roots and connected nerves.
A finger reflex or bicep is an excellent example of reflex activity.
If you need to learn more about deep tendon reflexes click here:
https://brainly.in/question/9262378
#SPJ4
Steven pushes a crate across a warehouse floor. If the crate moves at a constant speed in a straight-line path, which statement is true according to Newton's first law of motion? The force that Steven applies is greater than the force of friction between the crate and the warehouse floor. The net force acting on the crate is zero. The crate is in static equilibrium. Zero net force is required to change the crate's state of motion.
Answer:B
Explanation:THE NET FORCE ACTING ON THE CRATE IS ZERO.
Answer:
The net force acting on the crate is zero.
Explanation:
What are non-phathogenic bacteria
because genetic information is transmitted from one generation to the next which of the following is observed?
As genetic information is transmitted from one generation to the next, the fact which is observed is that, more than 100 genetic disorders result from genetic mutations. A genetic mutation is a change in the sequence of DNA in a gene, which affects the gene's final product.
Genetic mutations can be inherited or acquired throughout a person's lifetime.The genetic material that determines an individual's characteristics is contained in the DNA of the chromosomes. In every cell of a person's body, except red blood cells, there are 46 chromosomes arranged in 23 pairs. Each pair of chromosomes contains genes that are responsible for various traits or characteristics.There are more than 100 genetic disorders that result from genetic mutations. Some examples include sickle cell anemia, cystic fibrosis, and Huntington's disease.
To know more about chromosomes visit:
https://brainly.com/question/32019468
#SPJ11
During which process is oxygen gas released into the atmosphere?
Answer:
photolysis
Explanation:
it happens when the uv radiaiton of sunlight breaks apart the oxygen containg molecules.
a specific genetic trait is selected against. what will be the likely impact on an individual possessing this trait?a. Nothing, traits are only selected "for". O b. Increased chance of survival. c. Decreased chance of survival. O d. The gene will be excised using nucleases.
Option C is correct.
A trait is a characteristic that is determined by an individual's genes, which are segments of DNA that carry instructions for building and maintaining the body.
Some genetic traits are selected "for" by natural selection because they increase an organism's chances of survival and reproduction, while others may be selected against because they decrease an organism's fitness.
Option (c) "Decreased chance of survival" is the likely impact on an individual possessing a genetic trait that is selected against. This means that the organism carrying the trait may be less likely to survive and reproduce compared to individuals without the trait.
For example, if a genetic trait causes a structural defect in an organism that impairs its ability to move or obtain food, then the organism may be at a disadvantage compared to others without the trait.
Over time, individuals without the trait may be more successful at surviving and reproducing, leading to a decrease in the frequency of the trait in the population.
It's important to note that not all traits that are selected against are completely eliminated from a population. Some traits may persist at low frequencies, especially if they are not strongly linked to other traits that are advantageous or if they confer some other benefit that outweighs the costs.
To learn more about genetic traits:
https://brainly.com/question/2655226#
#SPJ11