Before fossil fuel use became widespread, which of the following did people use for a. energy?
b. wind
c. water
d. animals
e. all of these

Answers

Answer 1

Answer: im not 100% but i think its E all

Explanation:


Related Questions

spermiogenesis begins with a ________ and ends with a ________.

Answers

Answer:

Answer:

germ cell and four gametes

Explanation:

Spermiogenesis begins with a  germ cell   and ends with    four gametes.

What happens to the states of matter when the temperature changes

Answers

    They may either release heat or gain heat. With a temperature increase, the kinetic energy increases and the state of matter will increase (example, ice to water aka solid to liquid)

    If the temperature decreases, then the kinetic energy decreases and the state of matter will decrease (example, water vapor to water aka gas to liquid)

Have a nice day!

    I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

Many fishes and other organisms that live in the deep ocean produce light. What are two ways in which this light might be useful?

Answers

Answer:

Explanation:

Bioluminescence is used by living things to hunt prey, defend against predators, find mates, and execute other vital activities. Some species luminesce to confuse attackers. Many species of squid, for instance, flash to startle predators, such as fish.


1. Which of the following describes a heterotroph?
A.Heterotrophs conduct photosynthesis.
B.Heterotrophs cannot create their own food.
C.Heterotrophs can create their own food.
D.Heterotrophs get their energy directly from the sun.

Answers

Answer:

B. Heterotrophs cannot create their own food

Explanation:

Autotrophs, on the other hand, can.

Help with questions in image

Answers

Answer:

A) bird

B) snake

C) grass

D) cricket

E) should be snake

im sorry i dont know what F is

Explanation:

Are dams density-dependent or density-independent limiting factors?

Density-dependent

Density-independent

Answers

Answer:

Density-Independent

Explanation:

I hope this helped you! Let me know if you have any other questions.

Answer: Density-Independent

Explanation:

________ is the passing of traits from generation to generation while _________ is the scientific study of traits being passed from generation to generation.

Answers

Answer:

Heredity,Genetics

Explanation:

Heredity is the passing of traits from generation to generation while Genetics is the scientific study of traits being passed from generation to generation.

Traits are the defining characteristics that are passed from generation to generation, and genetics is a branch of science to study heredity.

What is genetics?

Genetics is the branch of science to study heredity and evolution, how genes originate and what changes occur over time.

Genes are segments of DNA upon chromosome code for protein, in the genetics gene is the major area of study. How a gene can be transferred from parents to a daughter and lead to heredity can be studied.

Heredity depends on the gene responsible for a particular trait and character, during evolution, there would be changes occur at the genetic level which leads to variation among species.

Therefore heredity is to pass traits, and the scientific study of it is genetics.

Learn more about genetics, here:

https://brainly.com/question/2655226

#SPJ2

Complete this sentence. The increased ________ in ocean waters has decreased its pH, making it more acidic.
nitrogen
carbon
salt
heat

Answers

Answer:

Carbon?

Explanation:

I remember that carbon can be toxic if it's increased

Answer:

carbon

Explanation:

a single base deletion within the open reading frame of a gene’s dna sequence can result in ____________.

Answers

Answer:

Replacement of multiple correct amino acids with alternative acids

Explanation:

Replacement of multiple correct amino acids with alternative acids

Alzheimer’s is a bone disease in which the bones become less dense.



Please select the best answer from the choices provided


T

F

Answers

False

Alzheimer's disease is a brain disorder that slowly destroys memory and thinking skills and, eventually, the ability to carry out the simplest tasks.

how does food web relate to food chain

Answers

A food chain outlines who eats whom. A food web is all of the food chains in an ecosystem. Each organism in an ecosystem occupies a specific trophic level or position in the food chain or web.

NO Links!!, Please HURRY How does the frequency of a wave relate to the wave's wavelength?
O The higher the frequency, the shorter the wavelength. This is because they have a direct relationship.
O The higher the frequency, the longer the wavelength. This is because they have a direct relationship.
O The higher the frequency, the shorter the wavelength. This is because they have an inverse relationship.
O The higher the frequency, the longer the wavelength. This is because they have an inverse relationship.

Answers

Answer:

Explanation:

What questions should you ask when analyzing how a character develops a theme? Check all that apply.

How does the character react to conflict?

How is the character changed by conflict?

When does the climax occur in a play?

Is the theme relatable to people around the world?

What lessons does the character learn based on the resolution of the conflict?

Answer: C.

Explanation: As you go up in frequency the wavelength will get shorter

How does humus help in plant growth?​

Answers

Explanation:

Humus gives the soil the ability to absorb and retain moisture. Such soils do not dry out and require significantly less irrigation. Humus provides a reservoir for the plant nutrients available in the soil for balanced plant growth.

Answer:

Humus gives the soil the ability to absorb and retain moisture. Such soils do not dry out and require significantly less irrigation. Humus provides a reservoir for the plant nutrients available in the soil for balanced plant growth.

gas exchange occurs between the tissue cells and the blood in the

Answers

Answer:

alveoli

Gas Exchange with Tissues

Gas exchange occurs in the alveoli so that oxygen is loaded into the bloodstream and carbon dioxide is unloaded from the bloodstream. Afterwards, oxygen is brought to the left side of the heart via the pulmonary vein, which pumps it into systemic circulation.

Explanation:

hope this helps

the two organs that play an important role in maintaining acid-base balance are the

Answers

Answer:

the lungs and kidneys.

Explanation:

If the plant absorbs 50 kcals of energy units, how much energy will the mushroom get from hawk that ate mouse that ate plants.

Answers

The mushroom will get 0.05 kcals of energy units in the end. This is because at each level, you only pass on 10% of the energy, which then results in the mushroom getting only 0.05 kcals by the end.

Which of these is not a feature of
prokaryotic cells?

A. ribosome
B. cytoplasm
C. cell membrane
D. nucleus

Answers

Answer:

D. Nucleus

Explanation:

during carbohydrate catabolism, more atp molecules are produced during

Answers

Answer: Glycolysis

Explanation:

It changed glucose to acid.

Which soil-based compounds do plants use to create amino acids from glucose?

Answers

Answer:

Nitrates are the soil-based compounds plants use to create amino acids from glucose

Explanation:

Nitrates soil-based compounds do plants use to create amino acids from glucose.

How long can the brain survive without oxygen.

Answers

Answer:

After five to ten minutes of not breathing, you are likely to develop serious and possibly irreversible brain damage. The one exception is when a younger person stops breathing and also becomes very cold at the same time.

Explanation:

why shouldnt you move the objective lense towards the stage when focusing

Answers

REMOVING THE SLIDE FROM UNDER HIGHER POWER OBJECTIVES MAY CAUSE THE SLIDE SURFACE TO HIT THE OBJECTIVE LENS SINCE THE LENS IN THESE OBJECTIVES WILL BE VERY CLOSE TO THE SLIDE. THIS COULD RESULT IN DAMAGE TO THE LENS. b. TO ACHIEVE THE HIGHEST POSSIBLE RESOLUTION WHEN VIEWING THROUGH THE HIGHEST POWER OBJECTIVES.

what is the main difference between a biome and an ecosystem

Answers

An ecosystem is quite smaller than a biome and exists within a biome.

A biome refers to a large habitat ocupied by assorted fauna and flora. Biomes are classified based on abiotic conditions such as temperature, soil types, rainfall etc. An ecosystem is a self supporting unit in which materials and energy are exchanged within the system.

The difference between a biome and an ecosystem is that a biome is a collection of different ecosystems that are found within a habitat while an ecosystem is composed of living and nonliving factors. An ecosystem is quite smaller than a biome and exists within a biome.

Learn more: https://brainly.com/question/8646601

What is one defining feature of a prokaryotic cell?


have a cell wall outside plasma membrane


cytoplasm surrounds organelles


organelles are not membrane-bound


membrane-bound organelles

Answers

Answer:

Here.

Explanation:

Cytoplasm Surrounds Organelles

Genes located near one another on the same chromosome are often inherited together. These are called ________.

Answers

Answer: Linked Genes

Explanation:

26. predict the elect of the loss of forests on cellular respiration in other organisms

Answers

Humans are diploid organisms that have 23
pairs of chromosomes (or 46 chromosomes) in
all somatic or body cells. These cells divide by
mitosis that forms daughter cells with same
number of chromosome pairs as present in
parent cell.
In humans, gametes (eggs and sperms) are
formed from the germ cells by the process of
meiosis that leads to reduction of chromosomes
in daughter cells (with half the number of
chromosomes as present in parent cell).
Thus, the correct options are:
-bone cell has 46 chromosomes, as bone is a
somatic cell.
-Skin cell has 23 chromosome pairs (46
chromosomes), as skin cell is somatic cell.
-gamete has half the chromosomes (23
chromosomes) of a red blood cell (46
chromosomes) as red blood cell is somatic cell.

(Branliest) Please give me the answer to these

Answers

Answer:

Explanation:

There are over 1300 imperilled species in the United States. 33.4% has been caused by introduced species or more so invasive species

The invasive or introduced species in the United States has seen an economic impact since the damage can be seen in both animals and plants. Now with an invasive species brought about, the naturally occurring species are left fighting for a spot in the habitat and lose in most cases. So economically, the United States has to spend money to get rid of the invasive species

Some of the invasive species have been known to live all year long, and so during the winter seasons, they act as food sources to birds and other animals.

which muscles are found on the front of your thighs?

Answers

Answer:

The Quadriceps

Explanation:

Answer:

Quadriceps muscles

Explanation:

How would air pollution affect the lives and/or livelihoods of those in the open markets of India?

Answers

Answer: It can make them sick and cause sickness or death and can make their businesses lose money.

Explanation:

The health effects of air pollution are serious – one third of deaths from stroke, lung cancer and heart disease are due to air pollution. ... Microscopic pollutants in the air can slip past our body's defences, penetrating deep into our respiratory and circulatory system, damaging our lungs, heart and brain.

Coughing, oils in skin, cilia that
sweep out invaders, saliva
chemicals, and stomach acid are
all a part of which type of immune
system defense?

Answers

Answer:

The first line of defence (or outside defence system) includes physical and chemical barriers that are always ready and prepared to defend the body from infection. These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils.

Explanation: brainlieast...?

Answer:

The first line of defence (or outside defence system) includes physical and chemical barriers that are always ready and prepared to defend the body from infection. These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils.

Explanation:

i hope that helps. have a great day!! :)

If you take a freshwater animal and transfer it to seawater for 60 days, what do you expect to see when you perform immunocytochemistry

Answers

Answer:

Explanation:

You could expect the to die because fresh water animals need fresh water to survive and seawater animals need sea water to surrive

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