Answer:
the sun gets behind the moon
Explanation:
Answer:
the moon moves into the earth's shadow, so no sunlight reaches the moon. This only happens when the sun, earth and the moon are in line with each other.
Line t passes through (4, 5) and is perpendicular to the line shown on the coordinate grid.
a coordinate plane with a line passing through two points at 0 comma 3 and 7 comma 2
What is the equation of line t in standard form?
x − 7y = −161
7x − y = 23
−7x − y = 23
x + 7y = 161
Answer:
it is b
Explanation:
The equation of line t is [tex]7x-y=23[/tex]
Equation of line :Given that , A line passing through two points [tex](0,3),(7,2)[/tex]
Slope of line is,
[tex]m=\frac{2-3}{7-0}=-\frac{1}{7}[/tex]
Since, line [tex]t[/tex] and given line are perpendicular to each other.
Slope of line [tex]t[/tex] is, [tex]=7[/tex]
Equation of line [tex]t[/tex] is, [tex]y=7x+c[/tex]
Line [tex]t[/tex] passes through [tex](4, 5)[/tex]
Substitute point in equation of line [tex]t[/tex].
[tex]5=28+c\\\\c=-23[/tex]
Equation of line [tex]t[/tex] become, [tex]y=7x-23[/tex]
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what are the long strands of DNA called?
A.Chromosomes
B.Fossils
C.Genes
D.Mutations
Answer:
A
Explanation:
Which of the following depicts correct base-pairing in DNA?
A-G-A
B-A-U
C-C-T
D-T-A
Answer:
D. T- A
Explanation:
In dsDNA the bases in the two strands are paired through hydrogen bonds forming base pairs (bp). Adenine forms two H-bonds with thymine from opposite strand and vice-versa. Similarly, guanine is bonded with cytosine with three H-bonds. As a result, always a purine comes opposite to a pyrimidine.
A - T & G - C
Physical characteristics include 3 pairs of legs and 3 body sections *
arachnids
insects
annelids
echinoderms
Answer:
The three main features of an arthropod's body are the _ or cuticle made of chitin; a series of paired, jointed _ , and segmented _ parts. A long organic molecule made of sugars, arranged in layers. Chitin.
Explanation:
Answer:
Which of the following equations are balanced correctly?
2Ag2O → 4Ag + O2
Zn + HCl → ZnCl2 + H2
Cu + H2O → CuO + H2
2C4H10 + 13O2 → 8CO2 + 10H2O
Explanation:
How does light behave?
Answer: Light behaves like waves, they undergo reflection, refraction and diffraction just like any other wave would.
Explanation:
Light waves move and change direction all the time. But how can we compare them? to all other waves because this behavior happens constantly.
when would you need to summarize and article
Science about osmosis and diffusion
What factors might limit the growth of a goldfish living in a large pond?
Answer:
Predators, food chain, fights with males, toxic water, contamination, plastic
Explanation:
Which ones goes with organ,organ system, and tissue
organ = a structure made of two or more tissues that work together.
organ system = organs that work together.
tissue = a group of cells that work together.
Which statement about fossils could be used as evidence that
evolution by natural selection has been in effect for millions of
years?
Fossils found in higher layers of rock are older than those
found in lower layers.
Fossils found in lower layers of rock are more complex than
those found in higher layers.
© Fossils of current species have been found throughout rock
layers that are billions of years old.
0 Fossils of species that no longer exist but are ancestors of
current species have been found in rock layers.
Fossils of species that no longer exist but are ancestors of current species have been found in rock layers. Thus, the correct option is D.
What are Fossil fuels?A fossil fuel is a hydrocarbon-containing material which is formed naturally in the Earth's crust from the remains of dead organisms such as plants and animals which are extracted and burned as a fuel. The main fossil fuels which are present in the earth's crust include coal, oil, and natural gas.
The evolution of species is easily confirmed by the presence of fossils of the most diverse species of the living beings in the world. This is because, fossils are the records of species which do not currently exist, however there are existed millions of years ago and are similar to the current species, being their ancestors.
Therefore, the correct option is D.
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A new type of fish has been discovered. It has vibration receptors on its snout and virtually nonexistent eyes. Based on these characteristics, in which part of the ocean is this fish most likely found?
If a fish has vibration receptors on its snout and virtually nonexistent eyes, these characteristics are found in the fish which leaves at the bottom of the ocean.
What is the use of receptors on fish?It is found under the skin, the lateral line made of sensory receptors known as neuromasts. While the cilia in the neuromasts vibrate, the fish can sense.
The lateral line may likewise feel and observe water pressure (depth), currents, objects, prey, and predator movements, this senses increase the chance for the survival of the fish.
Food and lure that is living and moving would be simple for fish to detect as it has a smell, sound and vibration.
Therefore, with vibration receptors, at the bottom of the ocean, this kind of fish generally found.
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What percent will be white?
0%
25 %
50 %
Answer:
0% will be white.........
What is the pathway of air into the body?
A. nose → nasal cavity → pharynx → trachea → larynx → bronchi → lungs
B. nose → nasal cavity → pharynx → larynx → trachea → lungs → bronchi
C. nose → nasal cavity → larynx → pharynx → trachea → bronchi → lungs
D. nose → nasal cavity → pharynx → larynx → trachea → bronchi → lungs
Answer:
D
Explanation:
Answer:
The answer is D
Explanation:
How do limiting factors impact local ecosystems?
A)Limiting Factors prevent populations in ecosystems form growing any larger. If any of the limiting factors change, animal and plant populations change, too.
B)Limiting factors do not prevent populations in ecosystems from growing any larger. If any of the limiting factors change, animal and plant populations do not change, too.
C)Limiting factors can never impact ecosystems.
D)As biodiversity of an ecosystem increases, the ability to withstand environmental stress due to the loss of a single species or group also increases, improving the sustainability of the ecosystem.
Answer:
limiting factors like the availability of food, water, shelter and space can change animal and plant populations. Other limiting factors, like competition for resources, predation and disease can also impact populations. ... Sometimes a population will grow too large for the environment to support.
Explanation: a
Pheumonia is caused by_
Answer:
viral infections
Explanation:
Pneumonia is a lung disease characterized by inflammation of the airspaces in the lungs, most commonly due to an infection. Pneumonia may be caused by viral infections, bacterial infections, or fungi; less frequently by other causes. The most common bacterial type that causes pneumonia is Streptococcus pneumoniae.
PLEASE HELP!! Would you expect to find many fluorescent organisms in the very deep ocean? Why or why not?
Answer:
Yes
Explanation:
many deep sea animals use bioluminecense to communicate, lure in prey, and defend against predators.
Which of the following are the major "reservoirs" of carbon in the environment?
Select one or more:
A. the Sun
B. natural habitats
C. the Earth's interior
D. the atmosphere
E. sediments
E the oceans
G. the human body
Answer:the atmosphere, the oceans, and sediments
Explanation:
Arctic ice retreat is threatening many species in this ecosystem. Their resources are being cut and they are needing to find new ways to survive. Do you think in your lifetime you will see drastic effects to the species in this ecosystem and why? Will that affect other ecosystems?
Answer:
no
Explanation:because they will find new ways to survive in the environment
Answer:
We are already seeing drastic effects to the ecosystem and it's wide assortment of species. Animals such as polar bears, and seals are losing their breeding and hunting grounds. Polar bears in particular are losing their ways to catch seals for food and interbreeding with grizzly bears. Fish and whales from warmer parts of the world are starting to move up north and are becoming invasive. Most importantly, since cold water from the melting ice are mixing with ocean currents, global climates and weather systems are changing course. Ultimately, in about 500 years, there could be a large Global Climatic Shift that may put us into another Ice Age.
I need to submit this ASAP please help
State reason(s) why ash should or should not be used in making compost
Answer:
Fireplace ashes for compost can be used to help maintain the neutral condition of the compost. It can also add nutrients to the soil. Decomposing materials in the compost pile can become somewhat acidic and wood ash can help offset this, as it's more alkaline in nature. But Adding too much ash to the pile can be detrimental to the makeup of the compost because of its alkalinity. Ashes tend to raise the soil pH, so you shouldn't use it directly on plants, especially acid-loving ones like rhododendrons, azaleas, and blueberries. Also, in high amounts, wood ash can inhibit plant growth by restricting nutrients, like iron.
Gregor Mendel crosses a true-breeding tall plants (TT) with a true-breeding short plant (tt). What are the predicted phenotypes for the offspring ?
a. all tall
b. all short
c. ratio of 1 tall : 1 short
d. ratio of 3 tall : 1 short
Answer:
a. all tall:
Explanation:
Tall plants (TT) are the more dominate trait. Use the Pundett square (I will try to recreate it as best as possible but it will not look good):
t t
T Tt Tt
T Tt Tt
As you can (kind of) tell, T appears on all offsprings, and as the dominate trait, it will take over 100% of the time.
The next generation (depending on who you are breeding them with), will have a different result.
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I need an answer for this ASAP. it’s number 6 7 8. 52 points to first person
Answer:
6. So high air pressure over a sea area corresponds to low sea level and conversely low air pressure (a depression) results in higher sea levels.
7. Thunderstorms, Tornadoes, Hurricanes, Winter storms
8. weather is short-term changes in the atmosphere and climate what the weather is like over a long period of time in a specific area.
Hope this is helpful!
What is the ozone layer?
Why is it important to humans?
Answer:
The ozone layer absorbs most of the Sun's ultraviolet radiation in the Earth's stratosphere.
Explanation:
It is important to humans because it protects us from getting sun burnt and from our body receiving too much radiation.
Answer:
it protects us from radiation from the sun
nervous/endocrine questions help pls!!
Answer:
Explanation:
1. A
2. B
3. IDK.
(HELP) A region periodically experiences ample rainfall and ideal temperatures. If the
population also experiences little disease at that time, the region is most
likely to have a(n) ___.
a. decreasing food supply
b. decreasing population
c. increasing popularity
d. increasing carrying capacity
Answer:
b. decreasing population
there are many factors that can decrease the population such as disease and other negative aspects.
An organism's traits are controlled by alleles it inherits from Its parents. Some alleles are dominant
while others are
hybrid.
recessive.
genomic.
sex-linked.
If the food source is affecting the buffalo population, what do you predict the graph of the food source would look like? Either draw a graph or write a prediction.
Answer:
If the food source increased the population would increase
Explanation:
Helppp !
Mendel published his results in 1865, but the significance of his work was not
recognized at that time. What is one reason scientists were not excited about
Mendel's work at the time?
O
A. He did not have enough data.
O
B. His results were false.
O
C. He did not repeat his experiments.
O
D. His results conflicted with accepted theories.
the answer should be d
Why we should be concerned about the increase in amount of the green house gases in the atmosphere?
Answer:
We should be concerned about the amount of green house gases released into the atmosphere because the more gases are released, the more they accumulate in the atmosphere and trap heat, which contributes to global warming, which is causing massive changes in our environment all around the world.
A cell phone discarded in the United States can cause a person processing it in China, India, or Africa to suffer negative consequences if it is not handled properly.
True Or False
Answer:
true
Explanation:
it is true
Why should extra precautions against sun exposure be taken when boating?
Water cancels out most sunscreens.
UV rays are blocked over land, but not over water.
The heat of the water increases potential skin damage.
The water reflects UV rays, adding to exposure.
Answer:
the correct answer would be D the water reflects UV rays, adding to exposure
Explanation:
Answer:
the correct answer would be D the water reflects UV rays, adding to exposure
Explanation:
Explanation:
