Why do birds migrate south during the winter?
A. strong northern winds drive them south
O B. an increase in predators drives them south
O C. to find food
O D. to find better nest building materials
Answer:
C. to find food.
Explanation:
It is hard to find food in the winter for animals besides humans. So they need to head south for warmer climates.
3. Which type of heat transfer causes your face
to feel warm when you sit in the Sun?
SC.7.P.11.4
A conduction
6 convection
© insulation
O radiation
how plants and animals get the matter they need to survive.
Answer:
Plants are able to use the energy from sunlight to produce sugars, which are a source of energy and matter. On the other hand, an animal cannot make its own food, so it eats plants and other animals.
Explanation:
Complete burning of fossil fuels releases carbon primarily to what part of the biosphere?
NO LINKS OR I WILL REPORT YOU!
Answer:
Atmosphere
Explanation:
carbon dioxide is naturally released into the atmosphere by the decay and flatulance of animals. But you extract fossil fuels from the ground and burn them. The burning of fossil fuels is called combustion.
The weight of astronaut on the moon will be
A) Less because the moon has less mass
B) Less because the moon has more mass
C) More because the moon has less mass
D) More because the moon has more mass
Answer:
A
Explanation:
The gravity of a body increases with its size. The moon is smaller than the Earth, so an astronaut will weigh less on the moon than they will on Earth. Good luck ^^
Explanation:
A because im big brain
In the presence of oxygen, _____ molecules of ATP can be formed during cellular respiration.
A. 36 to 38
B. 19 to 24
C. 2 to 4
D. 63 to 68
E. 38 to 42
Why does the ability to lay 1,000 to 5,000 eggs increase the fitness of the species L. clamitans clamitans?
It increases the probability that moving water will promote gene flow from one population to another.
It increases the chance of the recombination of alleles, leading to genetic drift in the population.
It increases opportunities for offspring to compete for limited resources.
It increases the probability that some offspring will survive long enough to reproduce.
Answer:
increases opportunities for offspring to compete for limited resources.
Which is the most likely result if the Ubx gene was activated either before or after it normally is activated in the sequence of Hox gene expression?
A. The insect develops slightly shorter or longer abdominal legs.
B. The insect develops normal body parts at either a slower or more rapid rate.
C. The insect develops normal body parts but in an altered time sequence.
D. The insect develops legs in other parts of its body.
Answer:
D. The insect develops legs in other parts of its body.
Explanation:
HOX genes, also known as homeotic genes, are evolutionarily conserved genes (containing homeobox sequences) that encode master regulators of embryonic development in animals. Hox genes modulate the body plan of an embryo along the head-tail axis. In general, these genes are arranged in the same order as they are transcriptionally expressed along the anteroposterior body axis. Moreover, Ultrabithorax (Ubx) is a Hox gene that is responsible for the proper development of the third thoracic segment in insects. In Drosophila, it has been shown that different segments of the leg regulate their size in response to Ubx expression.
Earth's core is the source of the energy that drives the movement of tectonic plates. Which two processes help transfer this energy outward to earth's crust?
Answer:The two processes are CONDUCTION and CONVECTION
Explanation:
The Energy produced in the Earth core is generated by Sun, gravitational force , radioactive decay, and the Earth' rotation, To maintain balance in the earth, The processes of CONDUCTION and CONVECTION transfer energy (HEAT) to Earth's interior, which also helps the movement of tectonic plates at a constant rate.
Now, inside the earth mantle is made up of hot solid rock and because Conduction occurs more in solids, Its currents helps the continuous transfer of heat energy from the warmer mantle at the bottom to the cooler mantle at the top While Convection currents in the core move thermal energy causing the rising and sinking of warm and cooler molten rock inside Earth, thereby maintaining the motion of tectonic plates and creating a balance in the earth.
Answer:
Conduction and Convection
Explanation:
5 Erosion and deposition are often discussed
together. Which statement most accu-
rately describes their difference?
A Erosion wears material away, and
deposition moves the material.
B Erosion moves weathered material, and
deposition resettles it.
C Erosion wears material away, and
deposition resettles it.
D Erosion and deposition are not
different; both describe moving
weathered material.
Answer:
Erosion wears material away, and
deposition resettles it.
10 points!!!
In a series circuit with three bulbs,
a.
there are many paths for the current to take.
b.
the remaining two bulbs are not affected if one bulb burns out.
c.
all of the bulbs become dimmer as more bulbs are added.
d.
a switch is never used.
Answer:
C
Explanation:
Because more bulbs are add the dimmer they get
liver damage leads to impaired digestion of fats .explain the statement
Answer:
the liver has multiple functions in the body but its main function is to process nutrients that are absorbed from the small intestine.
Which situation will most likely cause the sustainability of an ecosystem to weaken?
A) A zebra is killed and eaten by a lion.
B) A disease wipes out several plant species.
C) A frog lays hundreds of eggs that hatch into tadpoles.
D) A dry season causes a few small trees to die.
The answer is B THE SECOND ONE !!!
Answer:b
Explanation:
AGAIN PLEASE DON'T ATTACH A LINK
Which statement best describes a bacterial cell?
А. It contains more than one cell.
B. It is a complete organism.
С. It is part of a larger organism.
D. It contains different kinds of cells.
I NEEEDDD HELP PLEASE
Describe Okasaki fragments.
Answer:
Okazaki fragments are short sequences of DNA nucleotides which are synthesized discontinuously and later linked together by the enzyme DNA ligase to create the lagging strand during DNA replication.
Explanation:
Cows that have a white and brown coat color (think spots, dapples, or patches) are an example of what?
1. Codominance
2. Incomplete Dominance
3. Multiple Alleles
4. Polygenic Traits
Yall pls helppp
Why are molecular clocks important in the construction of cladograms? They compare the frequency of reproduction to determine which traits evolved through mutations. They compare the genes inherited by a species to determine descendants. They compare the number of mutations to determine how long ago species separated and evolved.
Answer: They compare the number of mutations to determine how long ago species separated and evolved.
You're welcome!
Answer:
C.They compare the number of mutations to determine how long ago species separated and evolved.
Explanation:
this is correct
About 530 million years ago, an evolutionary period known as the "Cambrian explosion" took place. Large numbers of new animal species appear in the fossil record that corresponds with this time.
Based on patterns of extinctions documented in the fossil record, about how many of these Cambrian species are probably still surviving today?
A- none of them
B- All of them
C-most of them
D-A very small number of them
Answer:
not answering give me them points
Explanation:
Answer: A vary small number of them
. What is the main function of an enzyme?
A. They lower the activation energy of a reaction by binding the substrate
B. They raise the activation energy of a reaction by binding the substrate
C. They lower the amount of energy present in the substrate
D. They raise the amount of energy present in the substrate
E. They are the main substrates in a biochemical reaction
Answer:
Here are some importance of enzymes I have brought for you :-
1. Enzymes create chemical reactions in the body.
2. They actually speed up the rate of a chemical reaction to help support life.
3. The enzymes in your body help to perform very important tasks. These include building muscle, destroying toxins, and breaking down food particles during digestion.
the diagram shows part of a human female reproductive system.
which structure is labeled 1 in the diagram? (i put the answer in the pic)
You are correct. It is the Fallopian Tube.
Answer:
D: fallopian tube is correct
HELP PLEASE I WILL GIVE BRAINLIEST
Explanation:
A is the correct answer in my opinion. Thanks.
Which process produces a greater number of offspring?
chromosome duplication
asexual reproduction
gamete formation
sexual reproduction
Answer:
asexual reproduction
Explanation:
Sexual reproduction produces a greater number of offspring compared to asexual reproduction, chromosome duplication and gamete formation.
What is the involvement in sexual reproduction ?This is because sexual reproduction involves the combination of genetic material from two parents, resulting in offspring that have a unique genetic makeup.
This increases the number of possible genetic combinations and thus the number of offspring produced. Chromosome duplication and gamete formation are involved in the process of sexual reproduction, but neither produces offspring by itself.
Chromosome duplication is the process by which one cell splits into two identical cells, each with the same genetic material. Gamete formation is the process by which reproductive cells such as sperm and eggs are formed.
These cells then combine during sexual reproduction to form a new organism. Asexual reproduction, on the other hand, involves a single organism producing offspring that are genetically identical to itself. This means that the number of offspring produced is limited compared to sexual reproduction.
Learn more about Asexual reproduction at:
https://brainly.com/question/4100787
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In this diagram, what determines how closely related an organism is?
Answer:
0.some thing related closed
Pioneer species such as lichen and moss inhabit an area after a major disturbance such as a volcanic eruption. Over time, other species are found in the disturbed area and the number of pioneer species decreases. Why does the number of pioneer species decrease? The amount of available sunlight is reduced. The pioneer species can no longer thrive. ⊝ The area has more soil to support complex plants. The competition increases between organisms. ⊝ The area is more susceptible to the wind. Seeds are captured in the pioneer plants and germinate at a higher rate. ⊝ The temperature is not as extreme as it was following the disturbance. Fewer of the pioneer species reproduce. ⊝ CLEAR ALL ❮ PREVIOUS ... 3 4 5 6 7 8 9 10 11 12
Answer:
The competition increases between organisms.
Explanation:
Primary succession occurs after a disturbance or disaster that leaves open spaces with no living organisms. These new open areas are the case, for instance, of a bare rock exposed due to a retreating glacier, a volcanic activity, or an intense fire. No previous species inhabiting this area are left.
These scenarios allow new species to grow. With time, new species arrive and manage to establish again. The order of the establishment depends on the strategies of each of the species to survive.
First, pioneer species arrive. These are the first inhabitants, mostly lichens or plants with the capability of surviving in such an environment. Only a few pioneers can establish in the open space. Pioneers modify the habitat. They make it more suitable for the posterior establishment of later species, converting rock into fertile soil. As conditions get better, new species arrive like grasses. Grasses and pioneers keep modifying the ground and making it better with time. Competition becomes more frequent between species. The first species are eventually eliminated by competition, while new species keep appearing and competing for resources. Habitat modification keeps on going while new species establish. They produce shadows, alter the temperature, and humidity, fertilizing the soil, competing for resources. Competition becomes more frequent between species. This sequence continues until there is not more facilitation, and the commuting reaches a climax, becoming stable and lasting for hundreds of years until another disturbance occurs.
the arctic region is a treeless plain with frozen ground. true or false
Answer: Its True, They are largely treeless because its the arctic.
8. Which set of chromosomes represents a mutation? *
8 points
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Answer:
8 points
111!
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Which of the following best describes natural selection?
A. organisms vary in their physical traits, and some are inherited
B. Organisms compete for food and shelter
C. organisms best suited to their environments are most likely to survive and reproduce
D. Organisms produce more offspring than can survive
Identify how information for specifying the traits of an organism is carried in the DNA.
Answer: DNA carries all of the information for your physical characteristics, which are essentially determined by proteins. So, DNA contains the instructions for making a protein. In DNA, each protein is encoded by a gene (a specific sequence of DNA nucleotides that specify how a single protein is to be made).
Explanation:
The traits or characters are present in the DNA in the form of genes. Genes are short stretches of nucleotides present in DNA and represent the encoded message that is present in the individual.
What is a gene?Genes are present in the DNA. It carries information about the traits that are expressed in an individual. Genes come from parents to offspring, so they are hereditary and pass from one generation to the next. From DNA, mRNA is formed from the gene by the process of transcription.
This mRNA is again converted to proteins or polypeptides by the process of translation. This product is the result of the message that is present in the gene. Example: melanin pigment and skin color variation. As different persons have variations in their genes, the production of this melanin protein synthesis varies, and as a result, skin color among individuals varies.
Hence, the information for specifying the traits is carried by genes present in DNA.
To learn more about the gene, refer to the following link:
https://brainly.com/question/16377110
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Which molecule is produced in the aerobic breakdown of a glucose molecule?
A. Water
B. Oxygen
C. Light
D. Alcohol
E. NADPH
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E. NADPH
thankshope it helpspls mark as brainliestAnswer:
E
Explanation:
it enters the citric acid cycle and generates reducing equivalents in the form of NADPH