Answer:
1. Humans are an “invasive species” because human populations have eliminated many ecological relationships, dramatically changing the dynamic of their ecosystems
2. continued loss of energy due to metabolic activities
3. lower trophic levels
Explanation:
1. An invasive species is any organism that is not native to an ecosystem and may negatively alter its new environment. Invasive species don't interact with native species when they are introduced into an ecosystem (for example, invasive species usually don't have any natural predators). Humans are an 'invasive species' that occupy a wide range of habitats and whose presence has caused the extinction of many native plants and animals. Human populations have drastically reduced the biodiversity of different ecosystems by competing with native species for limited resources, and we also have altered their habitats (global human population growth is also due to medicine and farming techniques, reducing hunger and diseases). In this regard, it is important to highlight that the human population can also grow in an ecologically sustainable manner by taking care of the ecosystems we live in.
2. Animals (predators) are consumers, thereby they depend on lower trophic levels for their food supply. The Second Law of Thermodynamics indicates that the continual loss of energy due to metabolic activities at lower trophic levels leads to a decrease in the amount of available energy at higher trophic levels. In consequence, the population size decreases at higher levels due to the amount of energy available from one lower level to the next higher level has to decrease when it is used for metabolic activities (i.e., growth, development, etc).
3. In the food chain, the primary producers are found at the lower trophic level (e.g., plants). Primary producers are followed by consumers (e.g., herbivores), they are followed by secondary consumers (i.e., carnivores that eat herbivores), and so on. When an invasive species at higher trophic levels is introduced into a new ecosystem (in this case, human species), it is imperative to preserve the biodiversity (and consequently also the productivity) at lower trophic levels because they are fundamental for the survival of higher trophic levels (i.e., consumers).
PLEASE HELP QUICKKK!!!
Each parent contributes how many alleles for each trait to their offspring?
A. one
B. two
C. millions
Answer:
A. One
Explanation:
The offspring will inherit one allele from each parent
Will give 30 pts
Which structure carries the semen to the penis?
sperm duct
glands
scrotum
testes
Answer:
Sperm duct
Explanation:
origin of different cereal crops and poles and different types of Agricultural seasons
Answer:
major crops in permanent agriculture includes trees and shrubs.these are not totation crops,harvesting for more then five years.for example apple,citrus fruits,blueberry etc.
these crops need afuquate temperature and good soil for cutivation.
A cooperative interaction between entities is called________
A) sustainable development
B) industrial ecology
materials management
D environmental justice
synergy
Answer:
A
Explanation:
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What precipitation that seeps into the ground and is stored in tiny holes in soil and rocks
Answer:
Rainwater
Explanation:
HELP
Youngest to oldest
Answer:
E B I F H A D G C
Explanation:
(20 POINTS!!) Respiration is a process where many chemical bonds inside the body break and release energy. This energy is used to perform various activities such as moving muscles. Explain the energy transformation in this process.
A. Chemical energy from broken bonds is transformed into mechanical energy for muscles.
B. Mechanical energy from broken bonds is transformed into chemical energy for muscles.
C. Mechanical energy from broken bonds is transformed into electrical energy for muscles.
D. Heat energy from broken bonds is transformed into electrical energy for muscles.
Answer:Cellular respiration is the process of transforming chemical energy into forms usable by the cell or organism. Organisms ingest organic molecules like the carbohydrate glucose to obtain the energy needed for cellular functions. The energy in glucose can be extracted in a series of chemical reactions known as cellular respiration. Most energy is produced during cellular respiration in the mitochondria, a process that involves breakdown of simple sugars to produce energy in the form of ATP, which is the usable form by the cell.
Explanation:
A trait is a distinct variable of
a character of an organism
that can be inherited. Which
of the following would be
considered a trait?
A. skin tone
B. eye color
C. green eyes
Several human populations spread throughout the Sahara desert have multiple mutations in Gene R that confers heat tolerance. Independently, a small population of humans in the Mojave desert of California have a unique mutation in Gene Z that also confers heat tolerance. The evolution of adaptation of heat tolerance across all of these populations would be considered an example of _________
Answer:
Variation
Explanation:
Migration into a population from other populations with varying gene frequencies, evolution, or adaptation of heat tolerance is a cause of variation. The allele frequency of the resulting hybrid population would be right in the middle of its original value and the donor population's frequency. In tropical and subtropical ecosystems (Sahara deserts), high temperatures are a significant restriction to human population productivity; they induce morphological and physiological modifications at all times, resulting in significant yield losses but the ability and evolution of human species to cope in this region is as a result of variation.
constellation are believe to ne of great help in the lives of some people.
True or False
The semester final for Mr. Garcia's science class required students to design and conduct an investigation that would answer the question "Is
styrofoam a better insulator than plastic?"
Which experiment would be most effective in helping students obtain evidence to use in answering this question?
100 mL of 70 °C water placed in 200 mL plastic cup
O A. 100 mL of 10 °C water placed in 250 mL plastic cup
wait 20 minutes, remeasure temperatures
50 mL of 70 °C water placed in 250 mL styrofoam cup
OB. 100 mL of 70 °C water placed in 250 mL plastic cup
wait 20 minutes, remeasure temperatures
100 mL of 70 °C water placed in 200 mL plastic cup
OC. 100 mL of 70°C water placed in 200 mL styrofoam cup
wait 20 minutes, remeasure temperatures
100 mL of 70°C water placed in 250 mL styrofoam cup
OD. 100 mL of 20 °C water placed in 200 mL styrofoam cup
wait 20 minutes, remeasure temperatures
100 mL of 70 °C water placed in 200 mL plastic cup
O E. 100 mL of 70 °C water placed in 250 mL styrofoam cup
wait 20 minutes, remeasure temperatures
Answer:
C
Explanation:
The correct answer is C because it puts equivalent measurements in the equivalent cup size. Both cups in answer C are the same measurement: 200 mL. The water in both cups is also the same measurement: 100 mL of 70 degrees Celsius. This is important because equivalent measurements for everything mean the experiment will be fair, equal, and accurate. If the measurements were not equal to each other, your experiment would not be as accurate.
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ᴀʜᴀʜᴀʜᴀʜᴀʜᴀʜᴀʜ
Answer:
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Explanation:
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b) What is DNA? What is a Gene?
True or false Question #1 Aspen has just learned HPV. (the human papillomavirus),
which can cause genital warts and cancer is so common most seually-
active people get at least one type of HPV during their lives. Aspen is
cared about HPV and has discovered there is a vaccine for this virus.
Aspen can go to a healthcare provider to get the vaccine but has to go
back for a second dose later.
Answer:
True
Explanation: One version of the human papillomavirus, which leads to most cases of cervical cancer, evolved in humans as a result of sex with Neanderthal, a new study shows
What are the difference between transfusion and infusion ?
Answer:
Infusions essentially refer to when an outside substance is administered directly into the bloodstream, while transfusions refer to when the same substance, just from an outside source, is administered in the same manner.
Explanation:
The lower chambers of the heart are the
septum
ventricles
atrium
pacemakers
Answer:
The correct answer is - ventricles
Explanation:
A normal human heart has four chambers, two upper and two lower chambers. The upper chambers, known as the right atria and left atria that get incoming blood into the heart.
The lower chambers knowns as right ventricles and left ventricles that push the blood out of your heart to the rest of the body. Ventricles receive the blood from the atrium and pump or expel the blood to the rest of the body.
Thus, the correct answer is - ventricles.
Which area of Earth is most similar to the sun's convection zone?
the crust
the equator
the mantle
the poles
Save and Exit
Answer:
C.) The mantle.
Explanation:
I took the quiz on Edge, 2022.
(See the attachment below.)
Hope this helped! <3
based on the living things in the pyramid, tell me what examples would fit into these categories: primary producers, primary consumers, secondary consumers, and tertiary consumers
Answer:
- Oak trees: primary producers
- Caterpillars: primary consumers
- Blue Jays: secondary consumers
- Hawks: tertiary consumers
Explanation:
A trophic pyramid, also known as ecological pyramid or energy pyramid, is a graphic representation that shows the relationships between different types of organisms (i.e., producers and consumers) at the trophic levels of an ecosystem. The primary producers are autotrophic organisms that obtain energy from sunlight and chemical compounds from nonliving sources (e.g., photosynthetic plants, algae, etc). The primary consumers are organisms that eat primary producers (e.g., herbivores), while secondary consumers are organisms that eat primary consumers (e.g., omnivores). Moreover, tertiary consumers are predators and/or omnivores that eat secondary consumers (e.g., hawks). Finally, decomposers (e.g., bacteria) are organisms that obtain nutrients and energy by breaking down dead organic material (i.e., dead organisms) at all trophic levels into nutrients.
The forces between ________ are examples of electric forces.
A.
charged particles
B.
neutrons
C.
masses
D.
photons
Answer:
b neutrons are eg of electric force
Male damselflies fight other male damselflies of their own species to win a mate. This shows that only the strongest can
O have enough to eat
O impact energy
O generate a defense
o pass on their traits
Answer:
Hello There!!
Explanation:
I believe the answer is=>O have enough to eat.
hope this helps,have a great day!!
~Pinky~
What evidence BEST supports the presence of atmospheric oxygen 2.7 billion years ago?
a. carbon 14 in plants
b. fossils found in stomatolites
c. layered iron rust in rocks
Answer:c
Explanation:layered iron rust in rocks
Human mass should be measured in grams to kilogram true or false.
Answer:
Kilogram
Explanation:
grams is for small things, kilogram is for larger
Answer:
false
Explanation:
What similarities do you observe about the rock formations of the Grand Canyon and Waimea Canyon?
The similarity between the Grand Canyon and Waimea Canyon is that both of them were formed about six million years ago.
What is a rock formation?The term rock refers to the solid mass which could be found above or below the earth crust which serves as a large repository of minerals.
The similarity between the Grand Canyon and Waimea Canyon is that both of them were formed about six million years ago.
Learn more about rock:https://brainly.com/question/1851822
#SPJ2
Scientists use computer models to study complicated events and to
a. perform experiments
b. state theories
c. change theories and laws
d. make predictions
Answer:
The correct answer is - d. make predictions.
Explanation:
Computer models are scientific models that help in analyzing complex systems. Scientists use these to analyze data and on the basis of these data computer models are able to predict the outcome of the problem or can tell what will happen in the future.
These are very helpful in complex systems and are made on the basis of the data collected and are the basis of the models. Weather forecast can be predicted on the provided data.
What is the definition of velocity?
acceleration over time in a specified direction
time
speed over time
position over time in a specified direction
Velocity is a measure of how fast something moves in the particular direction.
Pls help I will mark u
When an area is deforested, many organisms lose their?
Scientists interested in the relationship among vision, foraging for food, and fitness studied three isolated populations of a small species of primate whose diet includes small insects and fruit, both of which the animals primarily identify by sight. The three populations were once part of a larger population that was fragmented as a result of habitat destruction by humans. The study populations were selected on the basis of the significantly different vegetation among their current habitats. The scientists analyzed the frequency in each population of each of three alleles of a gene encoding an opsin protein. Opsin proteins are important for color vision, and each allele provides maximum sensitivity to a specific wavelength of visible light and thus to certain colors. Analysis of the alleles present in each population was performed in two different ways, and the data were combined to calculate the frequencies (Table 1).
Table 1. Frequency of opsin alleles in three populations of a small primate
Frequency (±2SEx¯)
Population 1 Population 2 Population 3
Allele 1 0.60 (.05) 0.80 (.06) 0.25 (.02)
Allele 2 0.15 (.02) 0.05 (.01) 0.45 (.03)
Allele 3 0.25 (.02) 0.15 (.02) 0.30 (.02)
(a) Describe one measure of evolutionary fitness.
(b) Using the template, construct an appropriately labeled graph to represent the data in Table 1. Based on the data, determine whether there is a significant difference in the frequency of EACH allele among the three primate populations.
Question 3
(c) Based on the data, identify the population that is likely to have the highest frequency of heterozygotes. Assuming random mating, calculate the frequency of animals in population 1 that carry both alleles 1 and 3.
Question 4
(d) A sudden event drastically changes the habitat of each population such that most of the normal vegetation and insects are replaced by other vegetation and insects. One of the scientists claims that population 2 will be the most severely affected. Predict the most likely effect of the event on population 2. Provide reasoning to justify your prediction.
a) Evolutionary fitness can be characterized as a person's commitment to the cutting edge's quality pool,which is chiefly founded on the aggregate or the genotype of the individual.This principally identifies with the conceptive achievement of an organic entity.
It is fundamentally determined by the offspring that can endure and pass on the characteristics/traits.
b) Graph is already uploaded in the below attached document.
c) The population 3 will have the most elevated frequency of heterozygotes,45% of the complete population.
d) Since population 2 is as of now having a low number of heterozygotes, the occasion would totally eliminate them from the population or decreases their number
Explanation:
Frequency of animals in population 1 having both alleles 1 and 3
frequency of allele 1 =0.60
frequency of allele 3= 0.25
Frequency of both allele 1 and 3 would be allele 1 + allele 3 frequency x 100
= 0.60+0.25 X 100= 85%
which of the following represents a heterozygos genotype?
A. FF
B. Ff
C.ff