Answer:
Fossils document the existence of now-extinct species, showing that different organisms have lived on Earth during different periods of the planet's history. They can also help scientists reconstruct the evolutionary histories of present-day species.
Hurry up please, due in 20 minutes, and please no links.
How are decreasing amounts of sea ice particularly harmful to mother polar bears and their cubs?
Answer:
Every winter, Arctic sea ice grows around the pole, its frozen tendrils threading along northern coasts. Right now sea ice has just passed its peak coverage for the year, and will begin to shrink with the coming of spring. It’s a crucial time for polar bears, whose food supply is inextricably linked to sea ice.
And in recent decades, sea ice has been shrinking faster than ever. According to the National Snow and Ice Data Center, 2019 has the seventh-lowest sea ice cover in the Arctic since they began collecting satellite data 40 years ago.
This year “doesn't break any records, but it's the trend that matters,” says University of Alberta polar bear scientist Andrew Derocher. “The downward trend in Arctic sea ice across all months is the concern,” he says, and “now we wait to see what spring conditions bring.” (Read more about global warming’s link to polar bears.)
A cold spring allows ice to linger, giving polar bears easier access to one of their favorite foods: seals. A warm spring cuts short the availability of their food super-highway....
List and describe the characteristic and position on the periodic table of halogens.
Answer:
Halogens are highly reactive, and they can be harmful or lethal to biological organisms in sufficient quantities. This reactivity is due to high electronegativity and high effective nuclear charge. Halogens can gain an electron by reacting with atoms of other elements. Fluorine is one of the most reactive elements.
Answer:
You can look that up just found it
Explanation:
You have about blank
of blood in your body.
please help i’ll give brainliest
Answer:
No. 2
Explanation:
Have a great day :)
Which term is used to refer to the path that a river of stream takes?
divide
divide
channel
channel
gradient
gradient
tributary
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Which of the following describes the range of a butterfly?
Group of answer choices
A. throughout the US and Mexico
B. approximately 4 butterflies die each day
C. the milkweed plant
D. 10,000 butterflies/acre during the breeding season
The option that describes the range of a butterfly is the milkweed plant. Thus, the correct option is C.
What is species range in ecology?A species range may be defined as an area where a particular species can be found during its lifetime.
The population of butterflies may migrate or hibernate in the locality of the milkweed plant itself. They take the nutrients required for growth and reproduction from the milkweed plant.
Therefore, the correct option is C.
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Morning glories are flowering vines that will climb up a trellis or other support by wrapping tendrils around it. What kind of tropism causes the morning glories to twine around the support this way?
A. phototropism, because the light pulls the morning glories upwards
B. gravitropism, because gravity helps the morning glories orient themselves in space
C. thigmotropism, because the morning glories twine around the support when they touch it
D. nutrotropism, because the curliness of the morning glories depends on the nutrients in the soil
PLEASE help me and quick
Explanation:
pretty sure its c also nice pfp 0_0
Select the correct answer.
Sally is wearing contact lenses when she splashes a chemical solution in her eye. What should she do?
A.
Take the contact lenses out. They likely protected her eyes from damage.
B.
Take the contact lenses out, rinse them, and put them back in.
C.
Throw the contacts away and wash her eyes for 15 minutes.
D.
Take the contacts out and throw them away.
E.
Wash her eyes for 15 minutes.
How could different nucleotide sequences result in the same amino acid
sequences?
Answer:
There is more than one codon that can specify most amino acids, therefore you never know which one was used for a particular protein, unless you can look at the DNA or RNA sequence.
when does adolescence end
Answer:
18/19 years old.
Explanation:
When you become an adult.
A(n)\ an space that presents the right conditions for an individual, population or species to liveit can be as big as the Atlantic Ocean for some species of fish , or as small as a pond where a species of bacteria lives 1.environment
2.biome
3.ecosystem
4.habitat
Answer:
4.habitat
Explanation:
Habitat is the place or environment in which organisms normally lives and grows. Habitat may be small for small size organisms and large for large size organisms. In these habitat, the organisms lives because of the suitable environmental conditions that allows growth and survival of organisms in that environment. If the habitat is no longer suitable for the growth of organisms the organisms migrate from that area to another suitable area.
Why is it important to consider the genotypes of individuals in Hidaya’s family and not just their phenotypes?
Answer:
Genotypes code the phenotypes and it makes instructions for it.
Explanation:
state two adaptive features of sperm
What are the following food types needed for: •carbohydrates. •fats. •vitamins. •proteins.
parasitic plant and insecticide plant defination
parasitic plant = A parasitic plant is one that survives at the expense of another, often living and growing on and over the host plant, while siphoning off the other plant’s nutrients and water, and sometimes blocking access to sunlight.
insecticide plant = Insecticide, any toxic substance that is used to kill insects. Such substances are used primarily to control pests that infest cultivated plants or to eliminate disease-carrying insects in specific areas. insecticide application. A farmer sprays insectides in a rice paddy in Japan.
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What does the term ecoregion mean?
A. Combination of ecology and region, so it links ecology to a specific location or region of the country.
B. Explains how a population of organisms migrate to different regions in a location of a country.
C. Explains how diseases spread from region to region in a country.
D. Combination of economy and region, so it links the economy to a specific location or region of the country.
The best answer I see is A
please tell me if I´m right
sorry if i am not
Heat is a form of energy transfer from a__________________ _______________ location to a _____________ location
Answer:
from a hot location to a cool location.
Explanation:
What process forms the Mid-Atlantic Ridge?
A. The seafloor is sinking in the middle of the Atlantic Ocean.
B. One tectonic plate moves under another one.
C. Melted rock from Earth's mantle rises between two tectonic
plates.
D. As melted rock falls, it cools and forms new rock.
Answer:C. melted rock from earths mantle rises between two tectonic plates
Explanation: got it right on ap3x
The answer is C!
(C) Melted rock from earth's mantle rises between two tectonic plates.
Do catfish have hair?
Answer:
no but they whiskers around their mouth like a cat. it is not hair though
Explanation:
In DNA, what base pairs with adenine?
Answer:
Hi, there the answer is thymine
Hope this helps :)
Explanation:
Which physical property is the rate at which
a substance transfers heat?
(F) boiling point
(G) density
(H) electrical conductivity
(I) thermal conductivity
Your alien friend from planet Xenon is visiting and wants to learn how to breed pea plants. You show your friend a recent batch of pea plants with purple flowers that you grew by crossing plants that had purple flowers with plants that had white flowers. Your Alien friend is confused as to why all your plants have purple flowers. How would u explain in the simplest way possible what happened? Hint: think about parents passing on alleles and dominant vs recessive. ANSWER ASAP FOR BRAINLEIST
Answer:
You have a trait (plant color) and you have two possible outcomes for it (purple and white). You know that some alleles for white were present in one of the parent plants, so you know they must be present in the offspring too. But they're expression is covered up by the purple alleles from the other plant, so you know that purple is dominant to white.
c:
In commensalistic relationships one organism benefits and the other organism.....
A. is harmed
B. are neither helped nor harmed (are unaffected)
C. is also benefited
Answer:
B
Explanation:
Because that what commensalism is
Answer:
B. are neither helped nor harmed (are unaffected)
Explanation:
Hope this helps
How does a cell wall compare to a cell membrane?
The cell wall determines which materials can move in and out of plant cells, and the cell membrane provides structural support for animal cells only.
The cell wall provides structural support for plant cells, and the cell membrane determines which materials can move in and out of both plant and animal cells.
The cell wall provides structural support for animal cells, and the cell membrane determines which materials can move in and out of plant cells only.
The cell wall determines which materials can move in and out of both plant and animal cells, while the cell membrane provides structural support for plant cells only.
Answer:
the 2 pne pretty sure its that
HOW ARE ROCKS, ELEMENTS, & MINERALS RELATED?
Answer:
Rock is formed from a combination of 2 or more minerals and minerals are composed of one or more elements.
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What do yall think ??
Who benefits from this relationship? Parasitism
Answer:
the parasite benefits, and the host is harmed; however, the host is not generally killed.
Explanation:
Killing the host would be bad for the parasite, as it would have no place to live.
What is not true about ocean waves?
They get their energy from the wind.
They can travel long distances.
They transfer energy without matter as a medium.
The greater the wind speed is, the higher the wave is.
Answer:
They transfer energy without matter as a medium
Explanation:
I don't really have one
What does pyruvate with O2 go to?
Answer:
In the presence of oxygen, pyruvate is transformed into an acetyl group attached to a carrier molecule of coenzyme A. The resulting acetyl CoA can enter several pathways, but most often, the acetyl group is delivered to the citric acid cycle for further catabolism.