In ancient times, why would a cloudy day make it so hard to tell what time it is?

Answers

Answer 1

Answer:

Because celestial bodies such as the sun and stars were used to tell time, so if they were obstructed by clouds it would be hard to tell time


Related Questions

5 sentence summary of the immune systems function

Answers

Our immune system’s function is to defend our body against pathogens. Two of the most important parts of our immune system are phagocytes and lymphocytes. Our phagocytes ingest the pathogens in a process called phagocytosis. Our lymphocytes produce chemicals called antibodies which can help to kill pathogens, kill pathogens themselves or neutralise any toxins produced. Sometimes, our lymphocytes create memory cells which remember the pathogen and retain in our blood even forever in some cases, to make us immune to the disease caused by the pathogen.

I really hope this helped! And please mark brainliest.

What might happen when a Hox gene turns other genes on or off?

Answers

Answer:

They can alter the phenotype of an organism

Where, in the cell, are proteins/enzymes constructed from the mRNA code

Answers

Answer:

Ribosomes

DNA is stored in the nucleus, while proteins are assembled from free amino acids in the cytoplasm in structures called ribosomes

These finches have a common ancestor and live close to each other on different islands. Why are their beaks different? *

Answers

Answer:They live in different environments and to survive many finches have different beaks.

Explanation:

How are earthworms and fish similar?

Answers

Materials eliciting increased tongue flicking and prey attack in garter snakes were isolated from both earthworm and fish prey. New extraction methods based on chloroform-methanol mixtures are valuable adjuncts to the more typical aqueous preparations. Both high- and low-molecular weight components from earthworms and fish were active. The similarity between the active chemicals in these two classes of prey was established using several methods of analysis.

Answer:

cc

Explanation:

DNA is a molecule that stores____information in the cells

Answers

Answer: instructions

Explanation: trust me

Answer:

genetic

Explanation:

Which organisms are the best example of producers in a food web?


killer whales


zooplankton


krill


marine phytoplankton

Answers

Marine phytoplankton

♡ The Question ♡

-Which organisms are the best example of producers in a food web?  

* ୨୧ ┈┈┈┈┈┈┈┈┈┈┈┈ ୨୧*

♡ The Answer ♡

-Marine Phytoplankton!

*୨୧ ┈┈┈┈┈┈┈┈┈┈┈┈ ୨୧*

♡ The Explanation/Step-By-Step ♡

-No Explanation/Step-By-Step provided!

*୨୧ ┈┈┈┈┈┈┈┈┈┈┈┈ ୨୧*

♡ Tips ♡

-No tips provided!

why is water pollution a density independent factors?

Answers

Answer:

Any factor in the environment that does not depend on the number of members in a population.

Explanation:

Density independent limiting factors also cause population sizes to increase. For example, the water from a flash flood increases the growth of vegetation, thereby providing more food for primary consumers in the ecosystem.

what is the best definiton of genetically motified foods? HURRYYY!!! please and thank youuuu

Answers

Answer:

GMO, or genetically modified foods, are foods that are messed with genetically by science to better benefit the human race. For example, scientists might replace genes that give corn a lower harvest, with a different gene in corn that makes a higher amount of harvest.

Explanation:

You could also look it up. Just search "GMO".

State the three parts of the cell theory.

Answers

Answer:

The three parts of the cell theory are: cells are the smallest unit of life; all cells come from preexisting cells; and living thing is made up of one or more cell.

With more carbon in the atmosphere, what do you think will happen to the environment

Answers

Answer:

Global warming

Extra carbon dioxide in the atmosphere will increases the greenhouse effect. More thermal energy is trapped by the atmosphere, causing the planet to become warmer than it would be naturally. That increases the Earth's temperature which is also called Global Warming

What determines the current phase of the moon?

Which side of the moon is facing earth

The earths seasons

How much of the sunlit part of the moon is visible

The 23.5 degree tilt of the Earths axis

Answers

Answer:

the answer is C

Explanation:

...............

pair of identical chromosomes (chromosomes that contain the same genes) from each parent, which all organisms produced by sexual reproduction receive

Answers

I think the answer is alleles

Answer:

the correct answer is homologous pair

Explanation:

Select whether each statement is describing xylem or phloem.

This tissue’s function is to transport sugars from the leaves to the other areas of the plant.
This tissue’s function is to transport water from the roots to the leaves.

Answers

Phloem is the first xylem the second

Answer:

1-Phloem

2-Xylem

Explanation:

25. Refraction is
Your answer

Answers

▶ Refraction Definitions :

The bending of light from its straight line path when it travels from one medium to another.

▶Definition: The change in direction of a ray of light when it passes through one media to another with differing optical densities.

▶Definition: A change in the direction of travel of light, sound, or other waves crossing a boundary

▶ Definition: change in direction of light ray when passing one medium to another.

17. If the cost of separating a mineral from waste rock becomes too great, the mineral may no longer be classified as
an ore. This happens because
a. the mineral can no longer be mined at a profit
b. the mineral has lost its usefulness
c. the demand for the mineral has decreased
d. none of the above

Answers

Answer:

A. the mineral can no longer be mined at a profit.

Explanation:

In the case when the separating cost a mineral from the wastage cost so this should occur at the time when the mineral should not be longer be mined at the profit.

What is a mineral?

The mineral should arise at a non-organic element or the compound that should be along with the internal structure also the attribute of the composition of the chemical should be considered. Its examples should be mics, quartz, etc. Now in the case when the separating cost a mineral from the wastage cost so it should be too big so option a is correct.

Learn more about mineral here: https://brainly.com/question/3570118

Which of the following accurately describes one part of the hierarchy of organization in living systems?
A : Tissues are made up of various cell types.
B : Organs are made of of various organ systems.
C : Cells are made of various organs.
D : Tissues are made up of various organisms.

Answers

Answer:

A : Tissues are made up of various cell types

Explanation:

B : can't be correct because a system is made of many things, so an organ system is made of many organs. As such, it doesn't make sense for organ systems to make up organs.

C : can't be correct because cells make tissues, and tissues make organs, so cells can't be made of organs

D : can't be correct because an organism is the whole living being. Organisms are made of organs, and organs are made of tissues, so tissues can't be made of organisms.

That just leaves A!

the mushroom is most likely
A. a primary consumer
B. A secondary consumer
C. A decomposer
D. A producer​

Answers

Answer:

c. decomposer

Explanation:

hope this helps.

ANSWER ASAP please!!

Answers

Answer:

to control what enters and leaves the cell

Explanation:

The nucleus controls the functions of the cell and a cell wall provides structure for a plant cell.

3. to control what enters and leaves the cell

This illustration shows a strand of mRNA and the complimentary tRNA molecules that can base pair with the mRNA codons. What is the correct sequence of amino acids?

Answers

Answer:

Since you haven't attached the illustration for finding out the amino acid sequence from the mRNA sequence from, I'll explain the general principle for it.

The mRNA represents the code for translation into specific amino acids which will form the protein. A group of three bases, a triplet code, is referred to as a codon. The tRNA is responsible for recognizing the codon and matching the anticodon that will attach to the mRNA and generate the chain of appropriate amino acids.

Hope that answers the question, have a great day!

WILL MARK BRAINLIEST


plz help

Which of these is an inherited trait?
1 point
braided hair
pierced ears
ability to read
eye color
2. What the main source of oxygen in an ecosystem? *
1 point
combustion from cars
respiration by plants
photosynthesis by plants
respiration by animals
3. Trout are found in rapidly flowing streams that have high levels of oxygen, stony bottoms, and an abundance of aquatic insects. These streams represent a trout’s ______________. *
1 point
niche
habitat
biome
community
4. Which combination of sex chromosomes results in a male human being? *
1 point
XX
XY
YY
NEITHER XX OR YY
5. Which of the following is not a function of the skeletal system? *
1 point
supports the body
works with other body systems to allow movement
manufactures new blood cells
sends signals to the brain
6. Which of the following pairs of structures share the function of reabsorbing water into the body? *
1 point
lungs, stomach
bone marrow, small intestine
hypothalamus, pancreas
large intestine, kidney
7. A trait the helps an organism to survive and reproduce is called *
1 point
variation
species
adaptation
selection
8.

Which structure belongs ONLY in the part of the circle labeled plant cells? *
1 point
cell membrane
cell wall
cytoplasm
vacuole
9.

According to this energy pyramid, what would the snake be classified as? *
1 point
producer
herbivore
carnivore
omnivore
10, Which of these does a virus need to multiply? *
1 point
chloroplasts from a host cell
a host cell to provide oxygen
new ADP from a host cell
a host cell to replicate the virus's DNA
11. Which of the following shows the correct order from smallest to largest? *
1 point
community ->organism->population->ecosystem
organism->community->ecosystem->population
population->ecosystem->community ->organism
organism->population->community->ecosystem
12.

According to the above Venn diagram, which feature does a Bald Eagle have in common with an American Robin? *
1 point
square tail
sharp talons
curved beak
perching feet


20 POINTS WILL MARK BRAINLIEST ANSWER

Answers

1. eye color is an inherited trait
2.photosybtheis by plants
3. either biome or habitat
4.XY
5.manyfactures new blood cells
6. large intensity and kidney
7.idk

Answer:

1. Inherited trait: Eye Color

2. main source of oxygen: respiration by plants

3. These streams represent a trout’s habitat

4. male human: XY

5. manufactures new blood cells

6. large intestine, kidney

7. variation

8. cell wall

9. carnivore

10. a host cell to replicate the virus's DNA

11. organism->population->community->ecosystem

12. sharp talons (Im not sure)

I hope this helps you! :)

An oak tree can be a home for animals like squirrels, birds, etc. as well as provide oxygen for the environment. This is an example of a _____________: the role an organism plays in the environment.

Answers

Answer:

Commensalism

Explanation:

Commensalism is the condition in which one organism is harmed and the other is neither harmed nor benefited. The animals are being benefited but the tree is neither benefited nor harmed.

Giraffes with short necks lived in arid regions and fed on grasses. Over time, grasses disappeared, forcing giraffes to eat from trees. Mutations in the genome led to some giraffes inheriting the trait for long necks. Over time, there were more giraffes with long necks in the region. What are the two reasons for the change in the population of giraffes?

Answers

Answer:

Two reasons are that the grasses they ate disappeared which caused some to die, but some lived and ate from trees and reproduction and such happened.  

Explanation:

i need points bro

What is the purpose of a trophic pyramid?

Answers

Explanation:

An ecological pyramid (also trophic pyramid, Eltonian pyramid, energy pyramid, or sometimes food pyramid) is a graphical representation designed to show the biomass or bioproductivity at each trophic level in a given ecosystem.

What characteristic do insects, centipedes, and millipedes share? Check all that apply
three pairs of legs
one pair of wings
one pair of antennae
two body sections

Answers

Answer:

One pair of antennae

Explanation:

They have more than three pairs of legs, centipedes and millipedes do not have wings, and they have more than two body sections.

Answer:

C is correct

Explanation:

Give an example of an unethical but not illegal dilemma you could face in your future profession- do not use one of the given examples.

Answers

Answer:

Some immoral things done to boost the sale of the company

Explanation:

An act is said to be 'Unethical' when it is incorrect morally. While an act is said to be 'illegal' when it is incorrect legally. For example -

If a person works in the sales and marketing department of a company, then his/her motive is to boost the sales of a company at any cost. in purview of this, a sales manager indulge in several activities where they take credit of other's company branding, they pull sicky of each other, also they sometime sabotage the work of their competing company etc. All these actions are unethical  but not illegal

What happens to 90% of carbon that is not passed to the next trophic level when a primary consumer takes in energy from a producer

Answers

Answer:

90% of carbon that is not passed to the next trophic level when a primary consumer takes in energy from a producer is lost as heat or used up by the body.

Explanation:

In the pyramid of energy, energy decreases as an organism move from one tropic level to the next. Only 10% of the energy at any trophic level is transferred to the next level.

The 10% consumed by an organism is stored in the body, the remaining 90% is lost as heat or used up for growth, reproduction, etc

Marijuana is a(n)
a. depressant
b. stimulant
c. hallucinogen
d. opiate

Answers

Answer:

Marijuana is a stimulant.

Answer: Marijuana is a stimulant.

Where is DNA located in your body?

Answers

Answer:

DNA is in the nucleus of nearly every cell in your body.

Explanation:

DNA is housed in the nucleus because it is the genetic material and needs to be protected.

Answer:

The DNA is located in the nucleus.

Explanation:

Humans and animals are EUKARYOTES which means we have a nucleus, where the DNA is stored. PROKARYOTES do not have a nucleus to the DNA is stored in the cytoplasm.

~Anna

If the outside temperature gets colder, a dolphin's body temperature will:
O get warmer
O get colder
• stay they same
NEXT QUESTION
ASK FOR HELP

Answers

Answer:

The answer is get warmer.

Explanation:

Since dolphins are considered mammals, they are warm-blooded, and therefore cannot survive very long in the cold. Their body temperature is designed to counteract the temperature fluctuations outside.

I hope this helps! :)

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What is 40% percent of 10? A man saw a meteor streak across the night sky. The meteor caused a flash of light that lasted 10 seconds. The meteor also caused buildings to shake for 4 minutes. Four minutes is a longer period of time than 10 seconds. How much longer? One minute is the same as 60 seconds.A230 seconds longerB6 seconds longerC190 seconds longerD200 seconds longer 21 Write the most appropriate forms of adjectives and adverbs from one set in eachsentence.bad / skilled / wellearly / new / well-behavedbeautiful / different /quick fast / old / talleasy / short / well-knowngood / likely / longyou wait, the.you are to miss the1 Thebargains in the sale.2 Ourson isthan his dad, but our other two haven't growasgroup of students isthan that other group who stayebook is.... and.to read than all the3 Thehere4 Hisothers.5 There are severalof the island, but the6 I can't play asor the .....beach on the other sideways to get to the... way is by boat.... as most of the others, but I'm not theof all those who want to participate.player22 Complete this first paragraph of an essay about 'fast food' with these adjectives andadverbs.betterfasterpuzzledsmalleras quickly asless beneficialmore easilymore wastefulthe bestthe most importantWhen did we decide that more convenient'is (1)way to choose between two What series of events in the 1970s caused people to become more skeptical about politics and less trusting of government?the Watergate scandalthe Kent State University shootingsthe Arab oil embargoeconomic stagflation Find the area of a semi-circle with radius, r = 83cm.Give your answer rounded to 1 DP. Four families are travelling. Order their speeds from least to greatest.Sapons80 km in 2 hSilvers180 km in 3 hJohns50 km in 1 hCunninghams35 km in 30 min(please help) Can someone answer this question please please help me I really need it if its correct I will mark you brainliest . Susan can read 72 words in One-third of a minute. Which statement is correct? oyanty:10. A plan for the optimal use of promotional elements such as advertising, public relations, personal selling, salespromotion, and social media-is known as aa. promotional strategyb. competitive advantagec. marketing mixd. promotional mix 1. What side in the second trapezoid corresponds to CD?choices:RUSTTURS2. What angle in the second trapezoid corresponds to B?choices:TSUR Different finch species have beaks of different shapes and sizes. What do these beak differences tell us? Ac is tangent to circle O at point c. what is the measure of ACO? PLEASE I NEED ANSWERS NOWMordecai's faith may be inferred by: his statement that if Esther failed to act, deliverance would come to the Jews in some other way his suggestion that Esther might have been providentially placed in the palace for preservation of her people his belief that the house of Esther's father would not escape the plot of Haman if she failed to act all of the above A mixed number contains a whole part and a ___ part.answer and i give you braiest Question 17 In the Haber reaction, patented by German chemist Fritz Haber in 1908, dinitrogen gas combines with dihydrogen gas to produce gaseous ammonia. This reaction is now the first step taken to make most of the world's fertilizer. Suppose a chemical engineer studying a new catalyst for the Haber reaction finds that 786. liters per second of dinitrogen are consumed when the reaction is run at 222.C and 0.35atm. Calculate the rate at which ammonia is being produced. Give your answer in kilograms per second. Round your answer to 2 significant digits. In DEF, the measure of F=90, DE = 9.4 feet, and EF = 8.4 feet. Find the measure of D to the nearest degree. vels of MarcoWhy does the author include information about trade in thistext?d here. AndOld and variouswill not attemptBucts. Theynerchants maketo convince readers to visit the region to buy productsto illustrate the wealth and commercial success of theregioto describe why he wants to live in the regionto encourage readers to move to the region In 1986 the prime minister of which European country was assassinated on his way home from the cinema with his wife? branlist for correct answer Find the surface area of the regular pyramid. PLEASE HELP FAST2. How does population growth relate to soil loss?A. Greater population increases demand for food, rewarding farmers for unsustainable farm practices.B. The more soil is lost, the higher the population will grow, leading to overcrowding in cities.C. As population grows, more forests are cleared, which means that there is less total farmland.D. When there is more demand for food, farmers have more children, leading to overpopulation.