Explanation:
Because the purpose of heart is to pump blood. But starfish don't have blood, instead they have a water vascular system.
TIMED!!! WILL MARK BRAINLIEST! 40 POINTS!!! Explain how a forester can make sure that an area is harvested sustainably.
Answer:
Foresters are responsible for determining areas that can be harvested sustainably and helps monitor areas to be harvested. Foresters determine which areas have trees that can be removed without causing harm to the environment and ensures that areas are not overharvested.
1. Why don't most people know how to start a fire without matches
Brown eyes in humans are dominant to blue eyes. A brown-eyed man, whose mother was blue-eyed, marries a brown-eyed woman whose father had blue eyes. Figure out each member’s genotype
Answer:
Man: Bb
Man’s mother: bb
Woman:Bb
Woman’s father: bb
Explanation:
Brown eyes are dominant over blue eyes, so, in order for a person to have blue eyes, they must carry both recessive alleles for blue. This means the man’s mother and the woman’s father must have the genotype bb. The man and the woman on the other hand have brown eyes, which means they got the dominant brown eye trait from their other parent and will have a heterozygous genotype Bb.
1. What was the landscape like before the fingers of ice carved out the lake beds?
2. What is the glacial history of the region?
3. Why did the ice flow in the opposite direction from the way the rivers had flowed?
4. What was happening beneath the glacier that led to the features that are 5. now seen in the Finger Lakes region?
6. Describe the processes that create glacial moraines.
7. Why is there water in these old glacial basins?
Answer:
.
Explanation:
Use the model of meiosis that you made earlier in the lesson to explain how crossing over contributes to genetic diversity. How did you modify your model? How do you think crossing over affects the expression of certain traits compared to the cells where crossing over didn’t occur?
Answer:
Due to exchange of parts of chromosome.
Explanation:
Crossing over is the exchange of segments or parts of chromosome between non-sister chromatids in the meiosis cell division. Due to crossing over, new combinations of genes in the gametes are formed that are not found in both parent which leads to genetic diversity. Crossing over affects the expression of certain traits in the organism because the organism that crossing over have different features as compared to their parents so there is a big difference between organism have crossing over and no crossing over.
Which food chain shows the path of energy through individuals in the
pyramid?
O A. Plant → Mouse - Bird
Snake
O B. Bird
Snake → Mouse - Plant
C. Plant
Mouse
+
Mouse
Plant
O D. Plant
Mouse
Snake
Bird
Answer:
D is the answer
Explanation:
I took the quiz and got it right.
An organ can be defined as
a) A group of cells of one type that has a function
b) a group of several different cell types, each type working together
c) a group of tissues that are located together that have unrelated functions
d) part of a system and therefore does not have a function of its own
Answer:
C...................
Answer:
I thought b since they work together not unrelated function
given the atomic number,how would you know the number of electrons?
Answer: The atomic number represents the number of protons and the number of electrons. For example, if an element has an atomic number of 5, you can conclude it has 5 protons and 5 electrons.
Explanation:
See the answer above. Hope this helped! :)
Select all the correct answers.
Which two of these processes remove airborne CO2 from Earth’s atmosphere?
1.photosynthesis
2.respiration
3.carbon sequestration
4.burning fossil fuels
True or false: when a frameshift occurs, the resulting protein is most likely non-functional
Answer:
True
Explanation:
In eukaryotes, where is the genetic material for the cell located
A. cytoplasm
B. ribosome
C. mitochondrion
D. Nucleus
HELP ME PLEASEEE
Answer:
d. Nucleus
Explanation:
the nucleus stores the DNA which is the genetic code for the organism.
The fluid in glomerular capsule is similar to plasma except that it does not contain a significant amount of ________. The fluid in glomerular capsule is similar to plasma except that it does not contain a significant amount of ________. hormones plasma protein electrolytes glucose
Answer:
plasma protein.
Explanation:
An experiment can be defined as an investigation which typically involves the process of manipulating an independent variable (the cause) in order to be able to determine or measure the dependent variable (the effect).
This ultimately implies that, an experiment can be used by scientists to show or demonstrate how a condition causes or gives rise to another i.e cause and effect, influence, behavior, etc in a sample.
Glomerular capsule is also referred to as Bowman's capsule and it can be defined as a cuplike sac (structure) with a double wall, which makes up the tubular part of a nephron within the kidney of mammals. It is saddled with the responsibility of first filtering blood (ultrafiltration) under pressure to generate urine in the mammalian kidney.
Plasma comprises of about 97 percent of water by volume and it typically contains mineral ions, glucose, carbon dioxide, hormones, plasma protein, etc.
Hence, the fluid in glomerular capsule is similar to plasma except that it does not contain a significant amount of plasma protein.
A park guide tells her that hoodoos like this one have been forming on Earth throughout history. Which principle explains the process that forms these rocks? A. erosion B. deposition C. weathering D. uniformitarianism
The principle that explains the process of forming hoodoos like this one is erosion. Therefore, option (A) is correct.
A hoodoo is a tall and thin rock formation characterized by a column of sedimentary rock that has been eroded over time, leaving a pinnacle or spire-like structure. Hoodoos are typically found in arid or semiarid areas with a high concentration of soft rock such as sandstone, limestone, or volcanic tuff. These formations are often created by a combination of factors such as water erosion, wind erosion, and frost weathering.
Hoodoos can take on various shapes and sizes and may be found singly or in groups, forming intricate and awe-inspiring landscapes. They are commonly found in national parks and other natural areas around the world, including the United States, Canada, China, and Australia, where they attract tourists and geology enthusiasts alike.
Learn more about hoodoos, here:
https://brainly.com/question/12496516
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If an ecosystem is disturbed, and the plants are destroyed, but the soil remains, rebuilding starts with
succession
primary
O secondary
climax
pioneer
Answer: secondary b
Explanation: its when there is soil to start with
Charles Darwin proposed the theory of evolution through the mechanism of natural
selection. In order for natural selection to occur, Darwin hypothesized that all
populations must exhibit certain characteristics. Which population characteristic
does the lady beetles population, as shown in the image, exhibit that supports
Darwin’s theory of evolution?
A.Lady beetles with fewer spots are more likely to survive.
B.Lady beetles with more spots are more likely to survive.
C.Lady beetles within a population may vary widely.
D.Lady beetles produce more offspring than can survive.
Answer:
Uh, i think its c? Please, wait until someone who actually knows to confirm
Explanation:
Which of the following statements about DNA (deoxyribonucleic acid) is NOT true?
Answer:
D
Explanation:
what are groups of reproducing populations that are isolated from other groups
Answer:
Species is a group of reproducing populations that are isolated from other groups.
Explanation:
Because animals and humans both create their own habitats!
No Links Please!!!
In a lake with three trophic levels (non-native fish, zooplankton, algae), an algal bloom occurs when the small population of zooplankton declines due to the predation of the invasive fish. Which of the following describes why zooplankton are the keystone species in this scenario?
Zooplankton are the smallest of all the herbivorous marine mammals in their communities.
The small population of zooplankton have an unequal effect on the marine community.
Marine mammals depend upon the work of zooplankton to convert sunlight into food.
Zooplankton help other populations survive by keeping out other herbivores.
Answers:
Zooplankton help other populations survive by keeping out other herbivores
Explanation:
This is because a keystone species are species that have large effect on the the habitat and through its effect they help to keep the ecosystem in existence. They make sure that the ecosystem exist. They help populations survive by keeping out herbivores and feeding on the algae. They help drive nutrients cycle and transfer energy from algae to invasive fish.
Carbon is transferred from the geosphere to the atmosphere by natural processes and human activities. Which of the following processes contributes to the transfer of carbon to the atmosphere?
A.
photosynthesis
B.
formation of fossil fuels
C.
precipitation
D.
volcanic eruptions
The processes which contributes to the transfer of carbon to the atmosphere are formation of fossil fuels and volcanic eruptions.
What is carbon cycle?The cycle in which transfer of carbon to the atmosphere from the Earth and back into the atmosphere is called carbon cycle.
Carbon is transferred from the geosphere to the atmosphere by natural processes and human activities.
Let's check all the options one by one-
A. Photosynthesis- This is a process through which the plants transfer light energy into chemical energy. In this process, carbon move from atmosphere to the biosphere.B. Formation of fossil fuels-The fossil fuels are developed by decomposing plants and animals in a million of years. This decomposition contributes to the transfer of carbon to the atmosphere.C.Precipitation- Precipitation is the product of water cycle, which falls by gravitational pull from clouds.D. Volcanic eruptions-The product such as lava and the gases which are released by a volcano is called the volcanic eruptions. These eruptions add carbon to the atmosphere.Hence, the processes which contributes to the transfer of carbon to the atmosphere are formation of fossil fuels and volcanic eruptions.
Learn more about the carbon cycle here;
https://brainly.com/question/25845923
The population of peppered moths have changed over time. The population has changed from primarily light colored to dark colored moths. This is an example of...
a
Mimicry
b
Natural Selection
c
Selective Breeding
d
Camouflage
In most animals, including humans, meiosis produces egg and sperm cells.
True or False
Help please
Answer:
True
Explanation:
When meiosos occurs it creates the egg or sperm cells (depending on the gender). It makes sure that when reproduction is occuring that everything is ok and nothing disrupts the process of meioses.
The author of this passage would most likely agree with which statement?
А
Frequent droughts are beneficial for the planet.
B
Rising ocean temperatures have made coral reefs healthier.
Governments should enact regulations to protect biodiversity.
D
UN scientists have overestimated the number of species at risk of extinction.
Answer:its c
Explanation:
Subject is Science: I need help plzzz!! If we have two different layers of water, one has a temperature of 70 degrees and one has a temperature of 30 degrees, which layer is going to be at the bottom? 30 degrees or 70 degrees?
Answer:
70 degrees water will be at the bottom. Ice floats, so it would make sense for the colder water to rise. Sorry if I'm wrong :>
What are examples of things that can cause mutations?
Answer:
Exposure to chemicals.
Explanation:
Mutations arise spontaneously at low frequency owing to the chemical instability of purine and pyrimidine bases and to errors during DNA replication. Natural exposure of an organism to certain environmental factors, such as ultraviolet light and chemical carcinogens (e.g., aflatoxin B1), also can cause mutations. Hope this helped. :D
Answer: Here are 3 examples;
Example 1: Sickle-Cell Anemia & Malaria
Example 2: Lactose Tolerance
Example 3: Klinefelter’s Calicos
Explanation:
Question 6: Describe a process scientists could use to test your conclusion from Question 5 in order to determine the exact age of the fossil. *
What effect did an increasing human population have on the sustainability of a managed ebony forest?
A) The ebony forest population increased when managed, even as the human population grew. As the human population grew, forest management caused more trees to be produced.
B) The ebony forest population remained stable when managed, even as the human population grew. Forest management allowed more trees to be grown.
C) The ebony forest went extinct. As the human population grew, it was not possible to maintain the forest, even when it was managed.
Answer:
B
Explanation:
Hey how are you?
Answer:
The ebony forest population remained stable when managed, even as the human population grew. Forest management allowed more trees to be grown.
hope it helps
please mark Brainliest
PLZZ help me with number 1!!!
PLEASE NO SCAM LINKS JUST PROVIDE A CORRECT ANSWER!!
Answer:
B. The inner planets are closer to the sun
Explanation:
The inner planets are actually smaller than the outer planets, all of the planets have moons, otherwise they're not considered a planet, and the outer planets, since they are FARTHER away from the sun have increasingly larger orbits.
When a trait is always expressed, it is considered to be a
trait.
O Recessive
O Codominant
O Dominant
O Incomplete
Answer:
O Dominant
Explanation:
An allele that is always expressed whenever it is present is called dominant. Mendel's law of segregation states that the two alleles for a trait segregate independently when gametes are formed.
Hope this helped!!!!!
A dominant trait is a form of trait which is ALWAYS expressed.
someone pls help w this!
Answer:
the answer is MM
Explanation:
HAVE A BLESSED DAY
hope this helps!
Which is an example of evolution?
A) The formation of a tumor on a dog's ear.
B) A cat with glowing purple eyes, a trait never seen before.
C) A rare copper snake giving birth to 10 copper colored snakes.
D) A cow with 4 ears giving birth to 3 calves with normal 2 ears.
E) A growth that looks like a 6th finger on a monkey.
Answer:
E.
his genes are mutating