PLSS HELP
Are they true or false? Think of evidence from the video to justify your
answers.
True
False
Scientific discoveries are
made by scientists working
alone
Scientists quickly accepted
the idea that an asteroid
caused a mass extinction.
The effects of the asteroid
strike were felt around the
world.
This question requires one response per row
Answers
Answer:
First is false, second is false, third is true, unless your talking about a asteroid that hit a planet.
Related Questions
The number of chromosomes is DOUBLED after mitosis. True or False, AND explain.
PLEASE HELP IT'S DUE TODAY!!!!
Answers
Answer:
False
Explanation:
The number of chromosomes is doubled during mitosis, but each daughter cell (new cell) has the same number as the mother (original cell)
Mitosis is a cell division cycle in which the parent cell divides to produce equivalent daughter cells. It can occur in the body for growth, replacing dead cells etc.
The statement is False.
The sentence can be explained as:
Mitosis is a function of division in cells in which the two exact daughter cells are produced from the parent cell division of the nucleus and cytoplasm.The parent cells undergo the doubling of the hereditary content by the process of central dogma during the synthesis stage. The parent and daughter cell is diploid during this sort of cycle and does not get halved or duplicated at the end of the cycle.Therefore, chromosomes do not get doubled at the end of the division.
To learn more about mitosis follow the link:
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Approximately how many base pairs are in the human body?
Answers
Answer:
3 billion
Explanation:3 billion
The human genome contains approximately 3 billion of these base pairs, which reside in the 23 pairs of chromosomes within the nucleus of all our cells. Each chromosome contains hundreds to thousands of genes, which carry the instructions for making proteins.
Can I have brainiest:)
Two Changes that happen to your gas exchange system when you exercise regularly
Answers
Answer:
Hi hope this helps:
During exercise there's an increase in physical activity and muscle cells respire more
The heart rate increases during exercise.
The rate and depth of breathing increases - this makes sure that more oxygen is absorbed into the blood, and more carbon dioxide is removed from it.
heating causes a substance to lose thermal energy
Answers
Answer:
true
Explanation:
Identify the reactant(s) in the chemical reaction, CO2 + H2O → H2CO3.
a
CO2, H2O, and H2CO3
b
CO2 and H2O
c
CO2
d
H2CO3
Answers
Answer:
b. CO2 and H2O
Explanation:
Reactants are substances that undergo change during a reaction. They are on the left side of the arrow and turn into products (aka the right side).
Please help me with this question about chromosomes
Answers
Answer:
The third one!
Which two processes are most likely to contribute to global climate change?
Answer choices
A) Agriculture and mining
B ) Deforestation and fossil fuel burning
C ) Fossil fuel burning and agriculture
D ) Sedimentation and deforestation
Answers
Hypersecretion of growth hormone after normal growth has ceased may cause: acromegaly achondroplastic dwarfism pituitary dwarfism gigantism
Answers
Answer:
Hypersecretion of growth hormone after normal growth has ceased may cause gigantism
Explanation:
The answer is attached. Please refer the attachment.
Tattoos and piercings are not acquired characters. True or false?
Answers
Answer:
False
Explanation:
It's false because you weren't or couldn't have been born with a tattoo, so you acquired the trait instead of inherited it.
Answer:
True
Explanation:
You are not born with them so they are not aquired.
The main parts of a working clothes dryer are shown in the diagram.
This appliance dries clothes primarily by converting --
Answers
Answer:
electrical energy to heat and mechanical energy
Explanation:
Answer:
Electrical energy to heat and mechanical energy
Explanation:
it uses Mechanical energy when it's MOVING the clothes
Heat in order to DRY it
Electrical in order for it to do all of that
☆*Hope this helped!*☆ <3
IF YOUR GOOD AT SCIENCE PLS HELP ME OUT ILL Mark Brainliest:)
Answers
Answer:
arizona and california
It is California & Arizona!
ArizonaArizona gets huge amount of sunlight. That's why Arizona is burning in the summer. During the summertime in Arizona, It can reach as hot as 120°F! It also ranked as No. 1 in the All-Time Record Maximum Temperature by State! In Lake Havasu City, it reached 128 °F! Arizona is also known for having heatwaves. About 76 people died during one of Arizona's heatwaves in 2014.
CaliforniaCalifornia is another state that gets a lot of sunlight. Since California gets high amounts of sunlight, most hurricanes form by California and Arizona. In September 6, 2020 California had recent a heatwave that broke out in several locations in Southern California. It reached 121 °F (49 °C), and a woman died while hiking.
That's all! Thanks for asking this question!Which of the following is NOT a function of lipids in living things?
A long-term energy storage
B heat insulation
C makeup & production of steroid hormones
D speed up or start chemical reactions
Answers
Lipids are used by the body as long term energy storage, for heat insulation, and are precursors to steroid hormones (ex: cholesterol is a precursor to estrogen and glucocorticoids).
It’s enzymes that speed up and start chemical reactions.
Male cones produce ______ which contains cells that develop into sperm.
(For people who need the answer)
Pollen
Answers
Answer:
yeah i was gonna say pollen cuz no one else had the right answer
Explanation:
Answer:
Yes the answer would be pollen
Explanation:
Which plate is located furthest SOUTH?
Answers
Answer:
Antarctic plate
Explanation: The Antarctic Plate started to subduct beneath South America 14 million years ago in the Miocene epoch. At first it subducted only in the southernmost tip of Patagonia, meaning that the Chile Triple Junction lay near the Strait of Magellan.
There is much controversy surrounding stem cells and the use of them. Do you think the use of stem cells is ethical? Why or why not?
Answers
Answer:
Explanation:
Ethical issues Historically, the use of stem cells in medical research has been controversial. This is because when the therapeutic use of stem cells first came to the public’s attention in the late 1990s, scientists were deriving human stem cells from embryos.
Which cycle is involved in both photosynthesis and respiration?
Water
Phosphorous
Nitrogen
O Carbon
Answers
In CR, oxygen acts at the final electron receptor, bonding with hydrogen to make water.
In PSY, the water is split to power the ETC, and oxygen is released as a by-product.
The forearm of all of these
animals are considered
homologous structures. Why?
A. They develop from the same embryonic
tissue.
Human
Bird
B. They are the most important sets of
bones.
C. They have no current use.
D. These animals do not share a common
ancestor.
Answers
Answer: its A
Explanation:
They have no current use, because they were passed down from a common ancestor, homologous structures are those that are comparable in related organisms, hence option C is correct.
What is homologous structures?The descendants of these structures may or may not carry out the same purpose. Tetrapods' four limbs are an illustration of homologous features. All four limbs are present in birds, bats, mice, and crocodiles.
Bony fish such as sharks do not. Tetrapods evolved four limbs, and their descendants have carried on this trait.
As a result, the presence of four limbs is a homology. The upper arm of both humans and cats consists of just one bone, which we refer to as the humerus, and two forearm bones, the radius on the more medial side and the ulna on the more lateral side.
Therefore, option C is correct.
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What kind of adaption would you be most likely to see in these little moles that live underground? the ones are A. Wings B. Fins C. An adaption to keep dirt out of their eyes and D. None of the above please help
Answers
It is d none of the above..
Two plates moving towards each other are called convergent plates, like those shown below.
Which structures are likely to form at a convergent plate boundary?
A) rift valley
B) wave erosion
C) mountains
D) river canyons
Answers
Just took the test :)
As TSH levels fall, the thyroid gland slows down thyroxin secretion.
True or False
Answers
Answer:
I think s its True
Explanation:
What do low levels mean? Low TSH levels indicate hyperthyroidism. This is also known as an overactive thyroid. If the thyroid gland is secreting levels of hormones that are too high, the pituitary gland produces less TSH
hope it helps
ok so my hairs like thick and brown to a lil above my waist should I cut it to my shoulders or keep it or uh like mid length I JUST NEED ADVICE TBH
Answers
Answer:
simple answer, do what ever makes you happy! if you want to try shorter hair, go for it! it will grow back so might as well try it out!
personally I think shorter hair is really pretty and eaiser to take care of
try holding your hair up it in the mirror and see if you like how it looks short
Red Cardinal
Which of the following is a nonliving component
required by a red cardinal to survive?
A. Carbon dioxide
B. Seeds, berries, and insects
C. Oxygen
D. All of the above
Answers
Answer:
d all of the above
Explanation:
1. The term used for “living together” is...
A. ecology b. environmentarism C.Bymiosis
Answers
Answer:
You might mean Symbiosis
Explanation:
What is the evolution of sex?
Answers
Answer:
Sex evolved as an extremely efficient mechanism for producing variation, and this had the major advantage of enabling organisms to adapt to changing environments. Sex did, however, come with a cost. In reproducing asexually, no time nor energy needs to be expended in choosing a mate.
The species of tree shown below grows in a wide range of temperatures in a desert area in Africa, where average temperatures have been rising over the past several
decades. The trees in the hottest parts of their range are dying, but trees at high elevations or in parts of the range that are cooler are growing and reproducing.
If this warming trend continues, which of the following statements best describes how the reproduction of trees will affect future generations of the species?
A. Trees in hotter regions will likely not survive and those at higher elevations will live to reproduce and pass their traits on to the next generation
B. The trees will adapt to the higher temperatures out of need and have offspring that are better suited for hotter temperatures.
C. Mutations in the somatic cells of individual trees that allow for resistance to heat will be passed along to future offspring.
D. Trees will adapt a method of dispersing seeds to higher elevations
Answers
Answer:
Explanation:b
Trees in hotter regions will likely not survive, and those at higher elevations will live to reproduce and pass their traits on to the next generation. This process is called as natural selection. Therefore, the correct option is A.
What is natural selection?Natural selection refers to the process through which the populations of the living organisms adapt and change to the changing environmental conditions.
In the scenario given here, if the warming trend continues, trees in hotter regions will likely not be able to survive due to the heat stress. Over time, the surviving individuals will pass on their traits to their offspring, resulting in a population better adapted to the warmer temperatures.
Option B is less likely because adaptation to higher temperatures can take a long time. Option C is incorrect because somatic mutations are not passed on to offspring. Option D is also unlikely, as it requires a complex change in behavior, and it's not clear if the species is capable of such adaptation. Therefore, the correct option is A.
Learn more about natural selection, here
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The question is incomplete, but most probably the complete question is,
The species of quiver tree grows in a wide range of temperatures in a desert area in Africa, where average temperatures have been rising over the past several decades. The trees in the hottest parts of their range are dying, but trees at high elevations or in parts of the range that are cooler are growing and reproducing. If this warming trend continues, which of the following statements best describes how the reproduction of trees will affect future generations of the species?
A. Trees in hotter regions will likely not survive and those at higher elevations will live to reproduce and pass their traits on to the next generation
B. The trees will adapt to the higher temperatures out of need and have offspring that are better suited for hotter temperatures.
C. Mutations in the somatic cells of individual trees that allow for resistance to heat will be passed along to future offspring.
D. Trees will adapt a method of dispersing seeds to higher elevations
pecies like fish and turtles have many predators. These species produce more offspring than will survive. Which of the following correctly addresses an advantage and disadvantage of the overproduction of offspring?
1.Species have an increased chance of survival and parents are able to care for the young
2. Competition of resources in the environment is reduced and species have a decreased chance of survival.
3. Overproduction of one species can threaten another species and species can become resistant to medicine.
4. Populations of species have increased genetic variation and competition for resources in the environment is increased.
Answers
Answer: D
Explanation: it’s unbiased and makes the most sense
Answer:
D
Explanation:
How are tectonic plates able to move and shift? What characteristics of Earth make this possible?
Answers
Answer:
The plates can be thought of like pieces of a cracked shell that rest on the hot, molten rock of Earth's mantle and fit snugly against one another. The heat from radioactive processes within the planet's interior causes the plates to move, sometimes toward and sometimes away from each other
Explanation:
Tectonic plates are able to move due to the convection current, and the rise in convection currents leads to the shifting of the tectonic plates, and due to the movement, there are changes such as an earthquake.
What are the consequences of plate tectonic movement?Tectonic plates are able to move and shift on the Earth's mantle, which is made up of extremely hot, thick, and dense rock that is constantly moving and the movement of the mantle is caused by convection currents, which are created by heat rising from the core of the earth, and these convection currents cause the mantle to flow, which in turn causes the tectonic plates to move, which causes earthquakes like natural disasters.
Hence, Tectonic plates are able to move due to the convection current, and the rise in convection currents leads to the shifting of the tectonic plates, and due to the movement, there are changes such as an earthquake.
Learn more about the plate tectonic movement here.
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Which of the following statements regarding aquatic ecosystems is
incorrect?
Estuaries are considered fish nurseries where fish lay their eggs and hatchlings
spend the first year of their lives.
The intertidal zone can be submerged and exposed depending on the tide.
Lentic and lotic ecosystems are characterized by high nutrient levels and
fluctuating salinity.
O Aphotic zones do not receive enough sunlight to support photosynthetic
organisms.
Answers
Answer:
All are correct, bit I believe this to be most accuraye: Estuaries are considered fish nurseries where fish lay their eggs and hatchlings
spend the first year of their lives.
Marta is running. Sam is sitting in a chair.
Suggest two things that Marta will need more of than Sam.
nicotine
oxygen
glucose
energy
carbon dioxide
Answers
Answer:
oxygen
glucose
Explanation:
Plants that have reproductive structures called cones are
A. angiosperms.
B. gametophytes.
C. gymnosperms.
D. sphorophytes.
Answers
Plants that have reproductive structures called cones are gymnosperms