Answer:
About 70 million years ago, all those huge creatures went extinct. But what was the reason? For 150 million years, the most widespread creatures on Earth were certain large reptiles known as dinosaurs.
Answer:
at the end of the Cretaceous Period
Explanation:
many species of animals carry an allele for albinism (lack of pigmentation). Albinos are usually pale or white in color. explain why the allele for albinism is present at la lower frequency than the allele for having pigments. what conditions would be necessary for the albino allele to be more frequent?
Answer: breeding an albino with an albino and let the babies lose and repeat
Explanation:
The allele for albinism is present at a lower frequency because it is not adaptive for most of the environments where humans live.
What is an allele?An allele is a gene variant that confers a certain fitness to an individual depending on the environment where this organism lives.
Adaptive alleles are in high frequency because they confer an adaptive advantage.Non-adaptive alleles are present in low frequency because they do not confer an advantage.In conclusion, the allele for albinism is present at a lower frequency because it is not adaptive.
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Using a diagram or physical model to make a prediction about how lunar phases might be changed if the moon was hit by an asteroid
please help quick
Answer:
mak a plastik moon
Explanation:
make a plastic moon and make a bid dent
The actual effects would depend on various factors, including the size and velocity of the impacting asteroid, the angle of impact, and the specific characteristics of the Moon's surface. Also, these effects might be subtle and might require careful observation to detect changes in lunar phases.
New Crater Formation: The impact of an asteroid on the Moon's surface would create a new crater. This crater would likely disrupt the terrain and create a visible indentation on the Moon's surface.
Altered Reflectivity: Depending on the size and composition of the impacting asteroid, the reflectivity (brightness) of the impacted area could change. A significant impact might expose different layers of the Moon's surface materials, affecting how it reflects sunlight.
Changing Shadows: The new crater and any ejected materials could cast unique shadows during different lunar phases. The angle and position of these shadows might be different from what we typically observe.
Temporary Brightness: Immediately after the impact, the debris and ejected material might temporarily increase the Moon's brightness, potentially affecting its appearance during full moon phases.
Long-Term Effects: Over time, if the impact was significant, the crater and surrounding area might continue to affect the Moon's appearance during different phases, causing irregularities in the brightness and shadow patterns.
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1. You are given a number of mixtures. Which of the choices below would be a heterogeneous mixture?
A. Salt dissolved in water?
B. A cake batter that has been baked?
C. Fruit salad?
D. A container of iron filings?
Explain why the answer you chose is the correct answer.
Which statement gives an advantage of multicellular organisms?
One cell performs all of the necessary functions.
All of the cells are the same.
They can grow large.
They can reproduce quickly.
Explain pls
Guys Label answer and say 2)... 3)...
Answer:
3. multicellular
Explanation:
not a bacteria, because, well, its an insect, its not a prokaryote, because an insect has more than one cell, and prokaryotes are unicellular, and its not abiotic because an insect is a living thing
sorry, not sure about no. 2
Match each sound wave property with its observable effect.
*Answers may be used more than once.
Properties:
amplitude
wavelength
frequency
Observable Effects:
volume
pitch
Please answer this question for branliest tysm
Answer:
D.
Explanation:
Nutrients and energy can help you with memory, health, and many other things.
1. Earths ozone layer absorbs solar radiation,protecting the biosphere.Which atmospheric layer includes the ozone layer?
Answer:
stratosphere (The second layer of the earth's atmosphere)
Explanation:
When the duck walked up to the lemonade stand and said to the man-
Answer:
runnin' the stand, hey do have any grapes, the man said no we just sell lemonade. But it's cold And it's fresh And it's all home-made. Can I get you Glass?" The duck said, "I'll pass". Then he waddled away. (Waddle waddle) 'Til the very next day. (Bum bum bum bum ba-bada-dum)
Explanation:
Discuss the similarities and differences between whale flippers and flukes and fish fins, using the scientific terms "homologous structures" and "analogous structures" in the discussion.
Answer:
The whale's flipper and tail flukes and fish fins are analogous structure as they have different structural formation but they perform the same function. Flipper and tails are locomotory organs in the whale and helps the whale in propelling similarly fins in the fish assist the fish in swimming.
please mark as brainliest
Please helppppp ASAP mark you Brainliest
1. Answer choice: (natural selection, diversity, scientific theory of evolution, genetic variation) and (environmental factors, inherited, inherited, extinct)
2. Answer choice: (national selection, diversity, environmental factors, extinct)
3. Answer choice: (national selection, genetic variation, inherited, environmental factors) and (genetic variation, extinct, diversity, inherited)
Answer
I don’t know for sure but I think.
1:scientific theory of evolution and inherited
2:extinct
3: national selection and genetic variation
I hoped it helps
The Moon's mass is lower than that of Earth, thus its gravity is ____ Earth’s gravity.
This is 5th grade btw
1.Earths ozone layer absorbs solar radiation,protecting the biosphere.Which atmospheric layer includes the ozone layer?
We can predict that summer days will be longer than winter days.
True
False
Answer:
true
Explanation:
The hemisphere that's tilted closest to the Sun has the longest, brightest days aka summer
Idaho has winter, but Florida does not.
True
False
Help please? Im stuck.
Just say A, B, C, or D. Thanks!
Without an unbalanced force, an object will ____. This is 5th grade btw
1. stop moving altogether
2. change its direction
3. change its speed
4. maintain its velocity
Answer:
I think it's 3. change its direction
Explanation:
♥ I hope this helps ♥
Answer: 2. change its direction
Hope it helps?! +Douglass speaks hopefully, describing how he would soon be free of Mr. Covey"I was now, for the first time in my life, a field hand. In my new employment, I found myself even more awkward than a country boy appeared to be in a large city. I had been at my new home but one week before Mr. Covey gave me a very severe whipping, cutting my back, causing the blood to run, and raising ridges on my flesh as large as my little finger."
a. Douglass uses a factual tone to describe his new experience at his employment, explaining horrible moments to demonstrate how bad things were.
b. Douglass speaks in an angry tone, remembering how Mr. Covey treated him and showing us how much he was in pain.
c. Douglass uses a sad tone to show how upset he was at being whipped right when he got to his new employer.
d. Douglass speaks hopefully, describing how he would soon be free of Mr. Covey
What is a difference between how ants and elephants primarily use grouping for survival?
PLEASSSWEEEE
Answer:
Answer is below
Explanation:
Ants are tiny insects you need small amounts of food and share with other ants
Elephants are usually alone and are huge which means they need more food and they are also have to watch out for predators.
What is the term for the "invisible force" that holds you to Earth's surface? im in 5th grade btw
Answer:
gravity
Explanation:
gravity helps keep everything grounded
GRAVITY IS THE INVICIBLE FORCE
Explanation:
Some plants lose their leaves and go dormant during hot, dry summers. What happens to these plants' life processes during dormancy? How does this help the plants survive?
During dormancy, plants stop growing and conserve energy until better cultural conditions present themselves. This happens naturally as seasons and weather changes
Which part of the eye refracts light and focuses it on a single spot?
cornea
retina
iris
pupil
Answer:
Cornea
Explanation:
Internet
Answer:
Cornea
Explanation:
HELP!!! Amino acids are small molecules that make up proteins.
What information do genes determine when building proteins?
choose all that apply:
the amino acids that are used.
the order of the amino acids.
the location where the protein is built.
the total number of amino acids.
Answer:
Most genes contain the information needed to make functional molecules called proteins. (A few genes produce regulatory molecules that help the cell assemble proteins.) The journey from gene to protein is complex and tightly controlled within each cell. It consists of two major steps: transcription and translation.
Explanation:
HELP PLS
HELP PLS
HELP PLS
HELP PLS
HELP PLS
HELP PLS
Answer:
Explanation: bro
A student wants to germinate seeds over the winter, which two conditions does she need to provide for the seeds? EXPLAIN THEA NSWER AND I WILL GIVE BRAINLIEST.
A). Soil
B). Moisture
C.)Warmth
D.) Fertilizer
Scientists often rely on _____ as evidence when looking at an animal’s reproductive success.
A. data
B. inferences
C. conclusions
D. reasoning
Scientists often rely on data as evidence when looking at an animal’s reproductive success. Thus, option A is correct.
What is reproduction?Reproduction has been defined as the process carried out by the living organisms and during the process of reproduction the living organisms produces their own young ones and feed them. Reproduction is the supreme quality of living things.
There are two types of reproduction and these are sexual and asexual reproduction. The process of reproduction in which two parents are involved is said to be sexual mode of reproduction and the process of reproduction in which only single parent is involved in known as asexual mode of reproduction. The example of asexual reproduction are budding, fragmentation, spore formation, and binary fission.
Reproduction is the supreme quality of living things. Reproduction has been defined as the process carried out by the living organisms and during the process of reproduction the living organisms produces their own young ones and feed them.
Therefore, Scientists often rely on data as evidence when looking at an animal’s reproductive success. Thus, option A is correct.
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Two types of interactions that might have negative impact on the snow leopards population is
The Moon's mass is lower than that of Earth, thus its gravity is ____ Earth’s gravity.
This is 5th grade btw
1. more than
2. less than
3. the same as
Think of one wild plant or animal species that lives near your home. Do you think that organism is native to
the local habitat? If it is, what steps could you take to protect it? If it is not, how would removing it affect
other organisms in the area?
Which organisms are multicellular, eukaryotes, and autotrophs?
animals
protists
plants
fungi