A change in the gene pool of a population over time is called adaptation natural selection evolution survival of the fittest
What is the dark, organic-rich material that develops when the decay of plant material is slowed by the of lack of oxygen under waterlogged conditions?
Bones are classified by whether they are weight-bearing or protective in function.
a. True
b. False
How are fossils helpful in identifying ancestral and derived traits of organisms?
What type of catastrophic event, which left a slight crater in the Yucatan Peninsula and iridium rich soil nearby, is thought to have possibly caused the extinction of the dinosaurs?
A)a tsunami
B)a volcano
C)a meteorite
D)an earthquake
Answer:
Option C, A meteorite
Explanation:
It is believed that a celestial object has hit the earth some 60 million years ago which has caused the extinction of dinosaurs. This celestial object is believed to be either an asteroid or a meteorite. As per the latest research by scientist it is believed that the dinosaurs were killed by the great tsunami caused by the collision of asteroid with planet earth.
Hence, option C is correct
A researcher places dogs in a cage with metal bars on the floor. the dogs are randomly given electric shocks and can do nothing to prevent them or stop them. later, the same dogs are placed in a cage where they can escape the shocks by jumping over a low hurdle. when the shocks are given, the dogs do not even try to escape. they just sit and cower. this is an example of
The answer choices to this question are:
a. Learned helplessness.
b. Stimulus discrimination.
c. Aversive conditioning.
d. Vicarious learning.
The best answer choice is:
a. Learned helplessness
Explanation: Learned helplessness was studied by Seligman as a potential animal model of depression. Learned helplessness occurs when people or animals feel helpless to avoid negative situations. Martin Seligman first observed learned helplessness when he was doing experiments on dogs. He noticed that the dogs didn't try to escape the shocks if they had been conditioned to believe that they couldn't escape.
Exposure to UV rays can cause
All animals can trace their lineage to a common ancestor that lived in the _____. see concept 32.2 (page 673)
Give an example of how you could determine whether or not a trait was displaying incomplete dominance. What would you do? What would your results have to be for the trait to be incomplete dominant?
Answer:
If one has to find that whether a trait is showing incomplete dominance, then post-mating the two species should produce an offspring that will demonstrate an intermediate character of the two parents. For example, in snapdragon flower, when red-colored flowers were crossed with the white one, the F1 generation exhibited all pink flowers, that is, a trait, which is an intermediate between the two.
The outcomes, which shows that whether a trait is incomplete dominant are that the F1 generation should exhibit an intermediate character of the two parents, and the F2 progeny should exhibit a phenotypic and genotypic ratio of 1:2:1.
Benjamin Franklin gathered scientific data to chart the Gulf Stream with his cousin, ship captain, Timothy Folger. Why was this important in the 1700s? (1 point)
Migratory birds could be monitored when using the currents.
Sailing ships could be redesigned to use the currents.
Ships could then take advantage of the currents to speed up travel.
Weather predictions could be made based on current speed and direction.
Answer:
c
Explanation:
Ships could then take advantage of the currents to speed up travel.
What would happen if a fresh water fish did not produce lots of watery urine
Why do humans have bigger pulvic bones than four legged animal?
A modulator that increases protein function by binding to a protein distant from the binding site is called __________. a modulator that increases protein function by binding to a protein distant from the binding site is called __________. allosteric inhibitor a competitive inhibitor a cofactor allosteric activator
At which latitude would the sun be directly overhead at noon on April 21?
8°N
8°S
23.5°N
0°
On April 21, the sun would be directly overhead at the equator (0° latitude) as the sun is beginning to shift from the equator towards the northern hemisphere.
Explanation:On April 21st, the sun is directly overhead at the equator, which is at 0° latitude. During the equinox, which occurs roughly around March 21st and September 21st, the sun's rays are perpendicular to the Earth's surface at the equator. By April 21, the sun is beginning to shift northward but has not reached its maximum declination of 23.5°N, which happens during the summer solstice in late June. Therefore, the sun is still overhead at the equator at this time.
Learn more about Sun's position here:
https://brainly.com/question/23414159
#SPJ12
The parents of a 2-year-old arrive at the hospital to visit their child. the child is in the play room and ignores the parents during the visit. the nurse tells the parents that this behavior in a 2-year-old child indicates which?
An rn enters a client's room and observes the unlicensed assistive personnel (uap) forcefully pushing a client down on the bed. the client starts crying and informs the uap of the need to go to the bathroom. what action is the rn witnessing that should be immediately reported to the supervisor?
Answer: Battery
The act of the unlicensed assistive personnel to the client can be considered battery for it intentionally and forcefully pushing the client down on the bed that cause the client to cry. In addition, battery is the harmful, offensive or unauthorized touching of another person with a high degree of certainty to harm another person.
Select the reasons why the term 'prokaryote' can be problematic.
It implies that prokaryotes existed before eukaryotes.
It implies that eukaryotes evolved from prokaryotes.
Prokaryote and eukaryote are used as a result of an evolutionary worldview.
Select effects of bacteria on the world around us.
food spoilage
flavor food
make cheese
make yogurt
causes Measles
decomposition
If a strand of dna has the nitrogen base sequence 5'-atttgc-3', what will be the sequence of the matching strand? if a strand of dna has the nitrogen base sequence 5'-atttgc-3', what will be the sequence of the matching strand? 3'-atttgc-5' 3'-taaacg-5' 3'-uaaacg-5' 3'-tuuucg-5' 3'-gcaaat-5' submitrequest answer part b if a dna double helix is 100 nucleotide pairs long and contains 25 adenine bases, how many guanine bases does it contain? if a dna double helix is 100 nucleotide pairs long and contains 25 adenine bases, how many guanine bases does it contain? 200 150 25 50 75
What is the correct order for the reactions of the calvin cycle?
The correct order for the reactions of the calvin cycle is Carboxylation → reduction → Regeneration.
What is calvin cycle?A series of chemical reactions known as the Calvin cycle, light-independent reactions, biosynthetic phase, dark reactions, or photosynthetic carbon reduction cycle of photosynthesis occurs during the phase of photosynthesis in which carbon dioxide and hydrogen-carrier compounds are converted into glucose.
Carbon dioxide is fixed during the first stage of the Calvin cycle, which is also the stage in which the light-independent processes begin. ATP and NADPH are responsible for the reduction of 3PGA to G3P during the second stage of the C3 cycle. After then, ATP and NADPH undergo a reaction that produces ATP and NADP+. RuBP is regenerated during the last stage of the process.
Learn more about calvin cycle, here:
https://brainly.com/question/13477893
#SPJ5
Bottom trawling is considered destructive because _______.
a.
it destroys sea floor habitats
b.
it depletes fish populations
c.
it shatters deep-sea coral
d.
all of the above
Answer:
the answer is ALL OF THE ABOVE
Bottom trawling is considered destructive because it destroys seafloor habitats, depletes fish populations, and it shatters deep-sea coral. So, it's D i.e. all of the above.
What do you mean by Habitat?Habitat may be defined as a type of natural environment for which a particular species is best adapted due to natural selection.
Bottom trawling is an activity of fishing practice that herds and grasps the target species by hauling a net along the seafloor.
This activity creates a disturbance along the seafloor which leads to the population depletion of fishes and destructs the deep-sea coral.
Therefore, the correct option for this question is D.
To learn more about Bottom trawling, refer to the link:
https://brainly.com/question/3564647
#SPJ2
Compare the lymphatic system with the cardiovascular system
Preparing the body for the "fight-or-flight" response during threatening situations is the role of the ___
What type of succession will follow if Jones High School was to be abandoned for 20 years due to a serious storm? state why?
Solar energy from the Sun's rays is absorbed by the Earth's land and water surfaces. This absorbed energy is then radiated back to the atmosphere as infrared radiation. Most of the radiation cannot be transmitted and is absorbed by the atmosphere. This absorption adds heat to the atmosphere and helps keep the Earth warm enough to support life. The process described above is known as
Answer: The process described above is known as:
Thermal Radiation.
Explanation: Thermal radiation is an electromagnetic radiation generated by the thermal motion of particles in matter.
The greenhouse effect is the process where solar energy absorbed by the Earth's surface is radiated back as infrared radiation, which is mostly absorbed by greenhouse gases, thus warming the atmosphere.
The process described above, where solar energy is absorbed by the Earth's surface and then radiated back into the atmosphere as infrared radiation, most of which is then absorbed by the atmosphere and greenhouse gases, is known as the greenhouse effect. This effect helps to keep the Earth warm and is vital for sustaining life. The greenhouse effect is a natural process and without it, the Earth's average temperature would be significantly lower, making it inhospitable to most forms of life.
The incoming solar radiation, which is mostly in the form of shortwave radiation including visible light, ultraviolet, and some infrared, is absorbed by the land and oceans, heating the Earth's surface. This heat is then emitted as longwave infrared radiation. Greenhouse gases, such as water vapor, carbon dioxide, and methane, absorb this infrared radiation and then reradiate the heat back to the Earth's surface, maintaining the Earth's temperature.
Scientific study of the population cycles of the snowshoe hare and its predator, the lynx, has revealed that
What fraction of this cross will be recessive for both traits?
The number of individual organisms born into a population in a given year
________ is acute or chronic pain that occurs because of a tumor, arthritis, or an hnp.
Steve is a 28-year-old triathlete who constantly consumes a healthy diet. he refuses to eat anything that he deems "unhealthy." he will rarely eat out with friends and even refused to eat a meal that his grandmother cooked for his birthday. he is extremely calorie and nutrient conscious. which condition might you suspect?
PLEASE HELP AND HURRY WILL GIVE BRAINLIEST
Which cell letter from the graphic organizer matches the fungus structure that releases digestive enzymes and absorbs digested organic material?
A. A
B. C
C. D
D. E
Answer: B hypha and D rhizoids
Explanation:
most of the fungi are saprotroph. They secretes digestive enzymes from hypha (B) of the mycelium on the dead and decaying matter. Digestive enzymes digest complex organic materials into simpler and soluble form in the external medium. With the help of root like structure called rhizoids (D) absorb nutrients from external medium into their body.
The fungal structure that releases enzymes and absorbs nutrients is the mycelium, made of hyphae; however, without the graphic organizer, an exact letter match can't be provided.
Explanation:The fungus structure that releases digestive enzymes and absorbs digested organic material is known as the mycelium, composed of hyphae. These hyphae are specially adapted to maximize their surface area to volume ratio, ensuring efficient nutrient absorption following the extracellular digestion that occurs when the fungus releases hydrolytic enzymes into the environment. Since the list of options (A, B, C, D, E) provided from the graphic organizer does not directly correspond to the detailed structure of fungus, none of the options can be chosen with confidence without seeing the graphic organizer itself.
Learn more about Fungal Hyphae here:https://brainly.com/question/30555845
#SPJ6