Answer:
as it settles deeper underwater ph tends to be higher and a sea urchin tends to be more resilient to change
Acidic seawater, at current pH levels found in the world's oceans, can have a negative impact on sea urchin larval development so it is taken to test the effect of changes in pH.
What is sea urchin?Sea urchins are spiny, globular echinoderms of the Echinoidea class. The urchins were able to compensate for internal pH in modest acidification (pH 7.8) and not in higher acidification (pH 7.6).
The pH of coelomic fluid was lower at higher temperatures.
Thus, due to this, the sea urchin was chosen to test the effect of changes in pH.
For more details regarding sea urchin, visit:
https://brainly.com/question/12262445
#SPJ2
What are the phases of mitosis? A. Prophase B. Interphase C. Cytokinesis D. Telophase (Multiply Choice)
Which quality makes Earth particularly well-suited to support life?
O A. Its axis precesses about every 26,000 years.
O B. It is roughly the same age as the sun.
O C. It features a wide variety of topographies.
OD. Its distance from the sun helps maintain a narrow temperature
range.
If a strand of DNA has 20% C, calculate the percentages of
G:
T:
A
Answer:
G would be 20%
T and A then would make up 60% so 30% each
Explanation:
Four identical plants are grown under
different colored light bulbs. Under which
color will the release of oxygen gas be the
slowest?
A. Blue
B. Orange
C. Green
D. Red
The release of oxygen gas will be the slowest under the red colored bulb.
It should be noted that phycoerythrin is a red pigment that's present in cryophytes and red algae. It's vital for the main chlorophyll pigments that are necessary for photosynthesis.
It should be noted that phycoerythrin reflects red light. Therefore, the release of oxygen gas will be the slowest under the red colored bulb.
In conclusion, the correct option is D.
Read related link on:
https://brainly.com/question/20400470
Phenotype refers to the _________ of an individual
A.actual physical appearance
B.recessive alleles
C.dominant alleles
Answer:
it's A..................
Answer:
It's A................
Whale
Horse
Bird
Cat
Bat
Human
These limbs provide evidence of common ancestry because they -
Answer
A have the same basic structure
B pedom the same function
С
are the same size
Dare parts of mammals
Answer:
The answer is A
Explanation:
All the the different limbs all have an upper arm bone which is the humerus and two forearm bones which are the ulna and the radius.
The limbs of Whales, horses, birds, cats, and humans provide evidence of common ancestry because they have the same basic structure. Thus, the correct option for this question is A.
What is a common ancestor?A common ancestor may be defined as an ancestral organism that is significantly shared by two or more descendent lineages. In a more simple term, an ancestor that they have in common. These ancestors follow each taxon's lineage back in time until all the lineages meet up.
A Common Ancestor is a lineage that undergoes cladogenesis, that is, branching evolution, such that more than one species can trace its ancestry back to the common ancestor or, more accurately, to multiple common ancestors.
Therefore, the limbs of Whales, horses, birds, cats, and humans provide evidence of common ancestry because they have the same basic structure. Thus, the correct option for this question is A.
To learn more about Common ancestors, refer to the link:
https://brainly.com/question/28420562
#SPJ2
what cell transports materials through a cell
Answer:
endoplasmic reticulum
Explanation:
Help me on this please
Explanation:
A.
The transpiration stream that passes through a plant may follow an apoplastic route, with low resistance to flow, or a cell-to-cell route, in which cellular membranes impede water flow. However, passage of water through membranes can be facilitated by aquaporins thereby decreasing resistance. We investigated the relationship between transpiration, which can be down-regulated by abscisic acid (ABA) or by high humidity, and the osmotic water permeability (Pos) of protoplasts. By using leaf protoplasts of wild-type (wt) Arabidopsis thaliana plants and of mutants that are low in ABA (aba1) or insensitive to ABA (abi1 and abi2), we found that protoplasts from aba1 and abi mutants have very low Pos values compared with those from wt plants when the plants are grown at 45% relative humidity. High values of Pos were found 3 h after the addition of ABA to the culture medium of aba1 plants; addition of ABA to abi plants did not restore the Pos to wt levels. There was no such increase in Pos when excised leaves of aba1 plants were treated with ABA. When the transpiration stream was attenuated by growing the plants at 85% relative humidity, the Pos of protoplasts from all plants (wt and mutants) was higher. We suggest that attenuation of the transpiration stream in whole plants is required for the up-regulation of the Pos of the membranes, and that this up-regulation, which does not require ABA, is mediated by the activation of aquaporins in the plasma membrane.
B.
The influence of abscisic acid (ABA) on carbon metabolism, rate of photorespiration, and the activity of the photorespiratory enzymes ribulose bisphosphate oxygenase and glycolate oxidase in 7-day-old barley seedlings (Hordeum vulgare L. var. Alfa) was investigated. Plants treated with ABA had enhanced incorporation of labeled carbon from 14CO2 into glycolic acid, glycine, and serine, while 14C incorporation into 3-phosphoglyceric acid and sugarphosphate esters was depressed. Parallel with this effect, treated plants showed a rise in activity of RuBP oxygenase and glycolic acid oxidase. The rate of photorespiration was increased twofold by ABA treatment at molar while the CO2-compensation point increased 46% and stomatal resistance increased more than twofold over control plants.
Which of the following animals belongs in class Cepholopoda?
1. snails
2. octopuses
3. glass sponges
4. jellyfish
Answer:
2. octopuses
Explanation:
A cephalopod is any member of the molluscan class Cephalopoda such as a squid, octopus, cuttlefish, or nautilus.
Octopuses belongs in class Cepholopoda. So, the correct option is (B).
What is Cephalopod?A cephalopod is defined as any member of the molluscan class Cephalopoda such as a squid, octopus, cuttlefish, or nautilus where specifically marine animals with bilateral body symmetry, a prominent head, and arms modified from primitive molluscs or is characterized by a set of tangents foot. These animals use gills to breathe and are invertebrates (lack backbones).
Cephalopods are most notable for their many arms and soft bodies, while ancestral cephalopods are known mostly from their shells because they are well preserved as fossils. The octopus, squid, cuttlefish, and chambered nautilus are familiar representatives.
Thus, Octopuses belongs in class Cepholopoda. So, the correct option is (B).
Learn more about Cephalopod, here:
https://brainly.com/question/20122998
#SPJ6
Which is the third stage of mitosis? (3 points)
Anaphase
Interphase
Metaphase
Telophase
PLS answer
How do vaccines generally work?
What is the difference between traditional vaccines and mRNA vaccines?
Answer:
Vaccines train our immune systems to create proteins that fight disease, known as ‘antibodies’, just as would happen when we are exposed to a disease but – crucially – vaccines work without making us sick
Explanation:
mRNA Vaccines Are New, But Not Unknown
This means the process can be standardized and scaled up, making vaccine development faster than traditional methods of making vaccines. mRNA vaccines have been studied before for flu, Zika, rabies, and cytomegalovirus (CMV).
IS ANYBODY ALIVE!!! I NEED HELP COMMENT ON THIS IF YOU WANT TO KNOW THE QUESTION. I WILL TAKE ALL HELP I CAN GET 2 ANSWERS BUT I CAN TAKE MORE ANSWERS IN THE COMMENTS BUT I NEED ONE REALLY GOOD ANSWER. SOMEBODY PLEASE RESPOND AND HELP ME!!
YESSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
Answer: yes i am alive
Explanation: I am breathing
Balanced forces do not result in any change in motion. forces: forces applied to an object in opposite directions that are not equal in size. Unbalanced forces result in a change in motion. friction: the force that opposes the motion or tendency toward motion of two objects that are in contact
What does carrier mean
Answer:
a large warship that carries planes and has a long flat deck for takeoffs and landings
Explanation:
a person or thing that carries, holds or conveys something.
The part of the vascular system in a plant that draw up water and nutrients and carry them up the plant is the: Group of answer choices Root System Phloem Vascular System Xylem
An organism that causes infections in plants and animals, but cannot be seen with a light microscope similar to that used in a high school biology course, is most likely a
A. Virus
B. Bacterium
C. Protozoan
D. Fungus
Answer:
the answer is a from what I've heard
The process of natural selection requires all of the following, except:
Group of answer choices:
A.) genetic inheritance through reproduction
B.) environmental pressure
C.) advanced or complex species
D.) variation of a trait
Answer:
C.) Advanced or complex species
why is carbon is so important for life?
Answer:
Carbon permeates the world of life from the energy requiring activities and structural organizations of cells, to physical and chemical conditions that span the globe and influence ecosystems everywhere.
Please help !!! For 10 points
Considering the temperature vs. time graph below, how does the temperature at the beginning of a change of state compare with the temperature at the end of the change?
The temperature is always lower.
The temperature is always the same.
The temperature is usually lower.
The temperature is usually higher.
Answer:
where's the graph man...... Also very complicated question...
Explanation:
With graph only it can be done...Answer:
The temperature is always lower.
Explanation:
I need help plzzzzz!!!!!! I’ll make you brainlest !!!!
Answer:
The RARA gene on chromosome 17 provides instructions for making a transcription factor called the retinoic acid receptor alpha (RARα). A transcription factor is a protein that attaches (binds) to specific regions of DNA and helps control the activity (transcription) of particular genes.
Explanation:
Chromosome 11 is one of the 23 pairs of chromosomes in humans. Humans normally have two copies of this chromosome. Chromosome 11 spans about 135 million base pairs (the building material of DNA) and represents between 4 and 4.5 percent of the total DNA in cells.
I don't know what subject to put this under, but my friend just told me she's a furry. how should I respond to this, and what should I say? thanks :)
Answer:
I mean I don't think there's any thing wrong with being a furry, try to be supportive and that you don't think of them any differently, overall just try to be supportive. :)
Answer:
Just be supportive, there is nothing wrong with being a furry.
Explanation:
A student drew the following diagram of the orbits of several objects in space.
OE
What keeps object A in orbit around object B?
The force of gravity between objects A and B.
The force of gravity between objects A and C.
O The force of gravity between objects A and E.
The force of gravity between objects B and X.
i’ll give brainlest answer please
Answer:
b an x
Explanation:
Answer:
Explanation:
5
2. Krypton (Kr) is a colorless gas that does not conduct electricity. Where would you
find this element on the Periodic Table?
a. On the left
b. On the right
C. In the middle
d. At the bottom
Select all the correct statements concerning proteins
pls help i’m taking a test.
Answer:
A,E,and F i think
Explanation:
The body cells of hamsters have 44 chromosomes. How many chromosomes would the sex cells of a hamster have? Explain.
Answer: 22
Explanation:
Answer:
hamster has 22 sex cells because they just do
Explanation:
like mofo
Which two organs do not have glands at all? Name it.
Answer:
The esophagus and large intestine. If this is for humans
Explanation:
How did the temperature relate to the “recommended temperature limit” (solid horizontal red line)?
Will give extra points for right answer
Answer:
The “recommended temperature limit” indicates limit of the temperature that is good for our world and above this limit causes adverse affect.
Explanation:
The temperature related to the “recommended temperature limit” means that in the graph there is a limit of temperature for our world's environment. if the temperature is between this limit, there is less or no adverse effect on our environment while on the hand, if the temperature exceeds from this limit, then it adversely affected our world because the concentration of carbondioxide gas in the atmosphere increases due to this increase temperature..
How have humans affected the Chesapeake Bay ecosystem food web?
Answer:
Algal blooms caused by pollution and the lack of oysters in the Bay has led to the decline of ocean floor algae, plants, and like sea grass and an overgrowth of bacteria. Jellyfish that were once rare are now common.
Explanation:
Hope thats helpful.
How does a mechanical wave affect the matter in which it travels through?
A
It changes its position forever
B
It moves perpendicular to the direction of the wave.
C
It has not affect on it
D
It may displace it temporarily, however when the wave passes the matter returns back
to its original position.
Answer:
The best and most correct answer among the choices provided by your question is the fourth choice or letter D "The thin membrane that closes the cavity of the middle ear from the outside changes position."
Your ears pop in airplanes because the air high above the surface of Earth is less dense than air near the surface, because air near the surface has all the air above it pushing down. Your inner ear has air trapped in it and as the atmospheric pressure changes, it causes pressure on your eardrum.
I hope my answer has come to your help. Thank you for posting your question here in Brainly.
Explanation:
In which part of the food chain is each of the algae?
Answer:
(algae) in the oceans. These organisms are called the producers, and they get their energy directly from sunlight and inorganic nutrients.
Explanation:
so producers
have a good day you silly goose