Explanation:
The platypus serves as a 'bridge' animal between nonmammals like birds and reptiles, which maintain their testicles in their body cavity, and placental and marsupial mammals, which hold their testes in an external scrotum."
How does contour plowing in farming help to prevent pollution?
Answer:
Contour plowing is used to reduce erosion and sediment pollution. Contour plowing is used to treat pathogens in livestock waste. Contour plowing is used to make insecticides less toxic
Explanation:
Contour plowing is used to reduce erosion and sediment pollution. Contour plowing is used to treat pathogens in livestock waste. Contour plowing is used to make insecticides less toxic
Contour plowing is a farming practice which is used to reduce erosion and sediment pollution. Contour plowing is used to treat pathogens in the livestock waste.
What is Contour plowing?Contour plowing is a farming practice which creates contour lines in the soil, these lines are placed perpendicular to the slope of the line, for this reason, they are a method which is used to prevent soil erosion and retain water in soil.
Contour farming is used to reduce erosion and sediment pollution because it helps in retaining soil moisture and water content. Contour lines favor infiltration of rainwater as water run-off is stopped through this.
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the fertilization of ovules from plant Q by pollen from plant R results in the productions of seeds. What percent of the genes in each offspring's chloroplasts wioll have been inherited from plant R
Answer:
The correct answer is - zero or 0%.
Explanation:
The fertilization in flowering plants takes place by fusing the pollen of one plant or flower with the ovum of another plant or flower of the same species normally and form a zygote. The zygote gets an equal amount of genetic material from both parent plants by the process f exchange of the genetic material.
The ovum or the egg cell of the plant is considered as the mother and the mother is responsible for the chloroplast And mitochondria of the progeny so in this case, the ovum and egg cell comes from the only plant Q thus, the percentage of chloroplast genes provided via Plant R is 0%.
How can embryos be more useful than adults to show evolutionary relationships among organisms?
Select one:
Related organisms always appear identical in embryonic stages.
Adults may have mutations that are not found in embryos.
Evolutionary relationships are more easily observed in more simple organisms.
Features found in embryos may not be found in adults.
Answer:
Related organisms always appear identical in embryonic stages.
Explanation:
Embryos of organisms that have a closer genetic relationship to one another tend to look similar for a longer period of time since they share a more recent common ancestor. Thus, embryology is frequently used as evidence of the theory of evolution and the radiation of species from a common ancestor.
PLEASE HELP! Scientists performed studies on mussels and clams. They placed these different species in fresh water that had contaminants commonly found in agricultural runoff and human and animal waste. Within a few days, the mussels and clams had removed the majority of the contaminants. How do these findings relate to ecosystem services in natural environments?
A.
Introducing new species of mussels and clams will help reduce erosion and runoff into rivers.
B.
Increasing the biodiversity of mussels and clams in freshwater ecosystems will improve water quality.
C.
Growing mussels and clams in rivers will provide humans with a steady source of food.
D.
Using a single species of mussel or clam will remove greenhouse gasses from the atmosphere.
Answer:
b
Explanation:
biodiversity means increase value or increase the amount of mussels and clams in rivers to increase water quality
What is the term for the absolute worst type of inflation, where prices skyrocket out of control and a nation's economy becomes at risk of collapse?
Answer:
Hyperinflation is a term to describe rapid, excessive, and out-of-control general price increases in an economy.
Explanation:
Which of the following is an abiotic factor in a biome
Answer: C
Explanation: Abiotic means non living so Wind, sunlight, soil, temperature, atmosphere, and water.
How do I know if a girl is mad at me? (over text)
Okay, I am a girl so it will be easy to explain.
If a girl is upset at you through text then here is 10 signs to help you:
1. She puts more than one dot next to her texts.
2. She says 'Whatever' when you say something nice to her.
3. She says 'okay' when you ask a question on where to go and you pick it.
4. She doesn't text back within two days.
5. She sends you a gif or a picture of something to change the subject.
6. She decides to text 'What are you doing' as her first text, her thinking that you done something wrong. aka, she doesn't trust you.
7. She tried to change the subject by asking a qiestion or just doesn't answer you and sends a picture of a random thing in her room.
8. She does all caps when you ask her something sensitive.
9. She puts '....' as her answer when you hit one of her nerves.
10. She deletes and blocks you off anything you and her have contact with.
I hope this helps you, mate. I hope you and your girl friend have a better relationship! :)
You are a researcher interested in a rare, highly endangered bird species that lives in a very remote area of the Amazonian rainforest. Almost nothing is currently known about this species’ diet, behavior, life-span, breeding system, or its interactions with other species. Use your knowledge of the definition of ecology, the scales at which ecological research is conducted, and experimental design.
1. Which ecological level (or levels) would you focus on in your research? Justify why you would choose this level (or levels), and explain why you would not choose the others.
2. Would you use an observational, experimental, or modeling approach to study this rare bird species? Why would the approach you chose be a better choice than the others for your study?
Answer:
- Ecological levels to consider in this study: organism, population and community
- Approach: I would use an observational approach to study this bird species
Explanation:
The levels of the ecological organization include the organism, population, community, ecosystem, and biosphere (from simplest to most complex). In this exploratory study, it is imperative to consider: 1-morphological, physiological and behavioral adaptations of the bird species (i.e., organismal-level), 2- size/density/structure of the bird population (i.e., population-level), and 3-interactions between bird population and other populations (i.e., community-level). The higher ecological levels, i.e., ecosystem-level (relationships between the community and abiotic factors ) and biosphere-level (biosphere = planet Earth), can be in this case disregarded because this study is centered on a focus bird species. Moreover, it is expected to apply an observational strategy because nothing is currently known about the focus bird species. The experimental and modeling approaches seem more suitable to test a particular hypothesis being discussed (it is not the case for this study).
What would make oppositely charged objects attract each other more?
increasing the positive charge of the positively charged object and increasing the negative charge of the
negatively charged object
decreasing the positive charge of the positively charged object and decreasing the negative charge of the
negatively charged object
increasing the distance between the positively charged object and the negatively charged object
maintaining the distance between the positively charged object and the negatively charged object
Answer:
A
Explanation:
Answer:
A, increasing the positive charge of the positively charged object and increasing the negative charge of the negatively charged object
Explanation:
EDGE 2021
What did fungi diverge from?
How did Mendel solve the problem of always observing the same traits in his experiments?
3) An astronomer observes four stars from two different locations on Earth. For which star will the
astronomer observe the greatest parallax?
the star that is 3.4 AU from Earth
the star that is 4.2 AU from Earth
the star that is 6.8 AU from Earth
the star that is 10.4 AU from Earth
Answer:
An astronomer observes four stars from two different locations on Earth. Will the astronomer observe the greater parallax for a star that is closer to Earth or farther from Earth? the greater parallax for a star that is closer from Earth.
Explanation:
i hope u read to found the answer
A strain of a cereal grain can be either dark tan, medium-dark tan, medium tan, light tan, or cream colored. When a dark tan and a cream plant are crossed, all F1 are medium tan. The F2 are distributed in a ratio of 1:4:6:4:1 from darkest to lightest. How many genes are involved in this coloration?
Answer:
The correct answer is - 2 genes.
Explanation:
The number of genes involved in the coloration of the strain of cereal grain, could be either dark tan, medium-dark tan, medium tan, light tan, or cream-colored if all F1 are medium tan when crossed a dark tan crossed with cream-colored, can be calculated as follow:
suppose there are only two gene - TT dominant over tt and CC dominant over cc
then the cross would be - RRCC - rrcc
gametes - RC and rc
Cross F1: RrCc
Self cross in F2:
offspring by Punnet cross are:
RRCC -->1/16
RRCc, RrCC .---> 4/16
RrCc, RRcc, rrCC--->6/16
rrCc, Rrcc--->4/16
rrcc ----> 1/16
thus, the correct answer is 2 genes
Alleles are represented by using letters. A dominant gene is
represented by what kinds of letters? Capital or small letters?
Answer:
Capital
- Refer to the basic theory in genetics.
Factorise completely pq - q?
Explanation:
q(p-1) is the factorization of pq- q.
Describe early land plants
Answer:
The following seems to be a summarization of the topics.
Explanation:
Not too far from the rich water supply or water bodies can early soil vegetation or flora persist, is considered as early land plants.Throughout history, land organisms have different ways of surviving with rising drought, our rocky earthly environment is turned into such an environment of multilayered sediments as well as varied biotic organisms.
what are the interactions between atoms that are hydrolyzed by fungi to release nitrogen from these molecules?
birth defects due to radiation are a concern also. why is a fetus especially at risk?
Of the babies that survive, however, few will have birth defects related to the exposure, regardless of how much radiation they were exposed to. Large radiation doses to the fetus during the more sensitive stages of development (between weeks 2 and 18 of pregnancy) can cause birth defects, especially to the brain.
HOPE THAT HELPED :)
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Can someone tell me if this is correct I need help with the percentage
Answer:
Hand = 75%
No hand = 25%
Explanation:
It's the same thing as last time. Since 3 of them are heterozygous and have 1 dominant allele, they have the dominant trait. And since one of them only has recessive alleles then it should have the recessive traits.
So the hand should have 75% and no hand has 25%.
( I saw someone else just post a link so I answered it in that question box, but it got deleted so i'm just writing it out here ig)
4. Which was a stronger nuclear blast?
a. The Hiroshima "Little Boy" bomb, 15 kilotons
b. The Trinity test explosion, 21 kilotons
c. The Castle Bravo explosion, 15 megatons
d. The 100-ton test, 0.1 kilotons
Answer:
I think it would be the Castle bravo explosion
Explanation:
Castle bravo was about 1,000 times more powerful than each of the atomic bombs that were dropping Hiroshima and nakazaki during world war II and I'm guessing in megaton is stronger than killotons
The benefit of social behavior that refers to searching for and collecting food is referred to as .
Answer:
Ngl bro i like your pfp, its fire
Answer:
Foraging
Explanation:
g Neuron A and neuron B interact with neuron C. Neuron A will produce an IPSP of -2mV in neuron C; neuron B produce an EPSP of 3mV in neuron C. The resting membrane potential is -70mV and the threshold is -50mV. Neuron A fires 6 times rapidly at the same time that neuron B fires 4 times rapidly. What is the resulting membrane potential in neuron C
Answer:
-70 mV
Explanation:
Given that Neuron A and Neuron B interact with Neuron C
Neuron A produces ; - 2mV of IPSP and fires 6 times
Neuron B produces ; 3mV of EPSP and fires 4 times
Resting potential = - 70mV
threshold = - 50mV
The resulting membrane potential in neuron C
= -70 + 6(-2) + 4(3)
= -70 - 12 + 12 = -70 mV
How did the development of sexual reproduction affect evolutionary change?
Explain the effect of the fungi on the growth of the seedlings after they emerge.
Answer:
The most common pattern is where the cotyledons are raised above ground as the seedling emerges. The seedling forms a hypocotyl hook that pushes through the soil. Once the seedling reaches the light, the hook opens to create a straight seedling. ... The cotyledons function as the repository for food reserves in the seed.
Explanation:
Answer:
Under certain environmental conditions, damping off pathogens can cause root rot or crown rot in mature plants.
Describe the reproductive system in humans.
Answer:
The human reproductive system includes the male reproductive system which functions to produce and deposit sperm; and the female reproductive system which functions to produce egg cells, and to protect and nourish the fetus until birth. Humans have a high level of sexual differentiation.#carryonlearning
Which Natural Step System Goal is being broken here?
Scenario: We are using petroleum from deep underground at a rate much faster
than the earth can create more petroleum.
System Goal 1
System Goal 4
System Goal 3
System Goal 2
Answer:
The Natural Step Framework is a methodology for successful organisational planning. It is based on systems thinking,
recognizing that what happens in one part of a system affects every other part. We begin by understanding the broader system
within which problems occur and the principles governing success within that system These principles for success then
provide a practical set of design criteria that can be used to direct social, environmental and economic actions, developing
effective, durable solutions to the environmental, social and economic issues of the new century.
Explanation:
Help 7 grade science
Answer:
rotifer
Explanation:
An omnivore feeds on both plants and animals. I'm this food web the rotifer is eaten by the copopod. The copepod feeds on golden algae (plant) and rotifer (animal), which makes it an omnivore. As such, the correct answer is rotifer because it is feed on by the omnivore, copepod.
Rinderpest (a virus) has high mortality in wildebeest (a kind of herbivore), especially in young animals. From the early 1960s, after the elimination of a virus called rinderpest, the wildebeest population has increased dramatically from 1958 to 1978. The elimination of rinderpest impacted the wildebeest population. What type of factor is rinderpest
Answer:
density-dependent, top-down factor
Explanation:
In biology, limiting factors are resources and other conditions in the environment whose presence/availability limit the population growth rate. Density-dependent factors refer to the conditions whose effects on the size/growth of the population vary depending on the population density. Some examples of density-dependent factors include diseases, competition, and predation, etc. These factors can exhibit a positive or negative correlation with the population size. Moreover, bottom-up population control (species limitation by resources) refers to limitations placed by resources allowing growth (e.g., food source or habitat), while top-down population control (limitation by enemies), refers to limitations placed by factors that control the death rate in the population (e.g., predation or diseases).
Each of the following is a function of the liver, except A. inactivation of toxins. B. synthesis of plasma proteins. C. production of digestive enzymes. D. synthesis and secretion of bile.
Each of the following is a function of the liver, except production of digestive enzymes. The correct option is C.
What are the functions of liver?The liver is the largest gland in the body and is located in the right upper quadrant of the abdominal cavity. It has over 500 essential functions. They include: Detoxification and purification - The liver is responsible for filtering toxins and harmful substances from the blood, preventing them from entering the bloodstream and harming other organs.
The liver is responsible for synthesizing many important plasma proteins, including albumin and clotting factors. The liver secretes bile, which aids in the digestion of fats and the absorption of fat-soluble vitamins.
The liver stores many essential nutrients, including vitamins and minerals. The liver is responsible for storing glucose as glycogen and regulating glucose levels in the bloodstream.
Therefore, each of the following is a function of the liver, except production of digestive enzymes.
Thus, the correct option is C.
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how to calculate average molarity
Answer:
To calculate the molarity of a solution, you divide the moles of solute by the volume of the solution expressed in liters.
Explanation:
The molarity (M) of a solution is the number of moles of solute dissolved in one liter of solution. To calculate the molarity of a solution, you divide the moles of solute by the volume of the solution expressed in liters.