what does the earliest evidence of life look like in the fossil record​

Answers

Answer 1

Answer:

Scientists have discovered what they say could be fossils of some of the earliest living organisms on Earth. They are represented by tiny filaments, knobs and tubes in Canadian rocks dated to be up to 4.28 billion years old.

Explanation:


Related Questions

The leaves of a plant have a waxy coating. In which environment does the plant most likely live?

1. Tropical rain forest
2. Arid grassland
3. Coastal wetland
4. Coniferous forest​

Answers

tropical rainforest leaves are waxy

Which best describes how air moves during convection?

A. Warm air cools as it mixes with cooler, denser air.

B. Cool air warms as it mixes with denser air.

C. Warm air is displaced by cooler, denser air.

Answers

Answer: C warm air is displaced by cooler, denser air.

Explanation:

C. Warm air is displaced by color air

Based on data collected from many different sources, such as the Hubble telescope and The Wilkinson Microwave Anisotropy Probe (WMAP), scientists have been able to show that about 75% of the universe is composed of dark energy. Which of these theories becomes more credible knowing this information?

Answers

Answer:

dhdbfbf r r

Explanation:

bebebdbe eehd r r eebr r

Why is it important to obtain the proper certification for certain fields of study in the healthcare field?
to prove that you are not an expert and are therefore not eligible for a job in health care
to prove that you acquired the skills and knowledge to perform a specific job in health care
to prove that you are capable of performing the job requirements for any job in health care
to prove that you are currently learning the skills necessary for a job in health care

Answers

Answer:

The correct answer is : to prove that you acquired the skills and knowledge to perform a specific job in health care

Explanation:

an official declaration or statement by authorized entity or institution that an individual is qualified and acquired knowledge, skill and expertise to do a particular job known as certification.

Proper certification is required in some field of the healthcare field or system to work. The main aim of the certification is to prove that an individual studied and practiced to acquired skill, knowledge and expertise to specific job in health care.

Thus, the correct answer is : to prove that you acquired the skills and knowledge to perform a specific job in health care

Answer:

to prove that you acquired the skills and knowledge to perform a specific job in health care. or B

Explanation:

edge 2020

Do you think the processes that form and shape the small stream bed are similar to those that form and shape the Grand Canyon? Why or why not?

Answers

Answer:

Due to the flowing of stream and river.

Explanation:  

The processes that formed the small stream bed are similar to those that formed the Grand Canyon because both are formed by the flowing of river. The river flow through these regions and with this flow they takes rock particles with itself and makes several shapes and structures of that region. So we say that rivers and streams are responsible for the formation of  stream bed and Grand Canyon.

ways cross pollination happens naturally​

Answers

Answer:

Cross-pollination occurs when one type of flower pollinates another type which results in a hybrid plant.

It is simply  the process of applying pollen from one flower to the pistils of another flower and occurs in nature with the help of insects and wind

Explanation:

How do oceanic conditions in Florida influence human behavior?

Answers

Answer:

The large area of ocean near the Florida have resulted in gaseous portion in the surrounding. The water is evaporate and gases are release in the air. These gases impact the human behavior and their way of living. There can be threats to people lives who are living near the coast of the ocean as there can be storm which can lead to Tsunami. There can be issues like coastal pollution and over fishing.

Explanation:

Human behavior and their way of living is dependent on the environment. The people who live near the ocean are more prone to storms and floods. Also the ocean is threaten by the humans as there can be environmental pollution, over pollution and similar problems which could snatch away beauty of the ocean and create a threat to aquatic lives.

Which of the following causes day and night to occur?
Rotation of the Sun and Moon
Rotation of the Moon and stars
Rotation of the Earth on its axis
O Rotation of the other planets in the universe

Answers

The rotation of the Earth in its axis

Answer:

I agree with her because I took the test

Explanation:

Define HIBERNATION & AMPHIBIAN?????

Answers

Answer:

HIBERNATION :the condition or period of an animal or plants spending the winter in a dormant state.

AMPHIBIAN:A cold blooded vertabrate animal of a class that includes frogs newts and salamanders.

Which statements describe the importance of the six elements found in all living things?

Answers

Answer:

All living things have six basic elements in common: carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur, abbreviated as CHNOPS. Each element has properties that make it crucial to the building of biomolecules, both in their capacities for bonding to other elements and in the bonds themselves.

Explanation:

I just searched it up on google :)

Rank the metals from most reactive (1) to least reactive (3).

Answers

most reactive is - caesium then alkaline earth metals then least Noble Gases

Answer:

The first question is 2,3,1 then the second question is 3,1,2

Explanation:

For the second one the periodic table gets more reactive from left to right.

The goal of basic science is:
A. to solve a specific problem.
B. to apply a new technology to an old problem.
C. to understand the world around us.
D. todesign a new product.

Answers

Answer:

C. because the common goal of basic science is to understand how things work, whether it is a cell, an organism, or a entire ecosystem. 

Answer:

to understand the world around us

Explanation:

I want to design an experiment to see if drinking coffee makes students
score higher on tests. List 1 necessary constant.

Answers

Answer:

The type of coffee

Explanation:

Different types of coffee contain different amounts of caffeine. This makes it important to use only one type of coffee

Constant is the one thing that does not change. If you are experimenting to see if they test better with coffee, you'll need to give each student the same amount of coffee throughout each trial.

I am the example of plants with woody stems. I am smaller than trees. My branches grow close to the ground. The rose and hibiscus plants are some examples of us. What am I?

Answers

Answer: I am a Shrub

Explanation:

A Shrub also called a bush  is medium-sized woody plant  with many stems which is shorter than a tree but taller than a  herb  having a range in height of about 6-10 metres  Shrubs are divided into two --- Deciduous and evergreen.

Many Shrubs are planted in  homes and gardens because of the  aesthetic value they provide,  including serving as wind breaks when many of them are planted together.Example of Shrubs include  Rose, jasmine,Hibiscus  tulsi, etc.

What are the characteristics of energy

Answers

Answer:

Energy is available in different forms

Energy can neither be created or be destroyed

Energy can be transformed from one form to another form

Energy can be stored

Explanation:

What is the cephalic phase? Group of answer choices earliest phase of digestion when the brain prepares the body in anticipation of food phase when the semidigested food leaves the stomach and slowly enters the small intestine phase when the majority of absorption occurs, primarily occurring in the small intestine final phase of digestion when the large intestine and rectum prepare the undigested components of food for elimination

Answers

Answer:

earliest phase of digestion in which the brain prepares the body in anticipation of food

Explanation:

The cephalic phase is the phase that occurs in the process of gastric secretion. The phase witnesses its initiation when the thought, smell, taste and sight of the food lingers in the mind before its consumption. The nerves sends the signals of the food from the cerebral cortex of the brain. Before the food is consumed or entered in the body, the cephalic phase takes place.

What are the biological catalyst ?

Answers

Answer:

The biological catalysts are enzymes.

Explanation:

Enzymes are proteins that function as catalysts that speed up reactions by lowering the activation energy.  The best way to define an enzyme is that it's a biological catalyst that accelerates a chemical reaction without altering its equilibrium.

what is a non-native species?

Answers

Answer:

on-native species can become such a common part of an environment, culture, and even diet that little thought is given to their geographic origin. For example, soybeans, kiwi fruit, wheat, honey bees, and all livestock except the American bison and the turkey are non-native species to North America.

Explanation:


Use the picture to tell if it is accurate , precise , or both?

Answers

Answer:

Accurate - Yes

Precise - Yes

Explanation:

Accuracy and precision are two ways to detect the closeness of measured values in an experiment. However, these two terms do not mean the same thing.

Accuracy of a measurement refers to how close a measurement (experimental values) is to a true or actual value while the precision of a measurement refers to how close the experimental or measured values are to one another.

Note that, a measurement may be accurate but not precise or be precise but not accurate.

In the case of the dart board in the image, it is evident that the measured values (represented by darts) are close to the middle target (represents the known or accepted mark). Hence, the measurements are said to be ACCURATE. Likewise, the measured values are also close to one another, meaning that they are PRECISE.

Therefore, the measurements are both precise and accurate.

Why hydrophytes do not have cuticle on stem or leaves? answer just in 4 to 5 lines

Answers

Explanation:

The cuticle is a layer of tissue on the outside of most leaves and stems, and its primary function is to help the plant conserve moisture. Since hydrophytes are full of water and moisture, it does not need a cuticle.Most aquatic plants don’t need to seal in moisture, so they don’t have cuticles

Please answer the questions in the picture for 30 pts

Answers

Answer:

For the barchart the answer is D,October

need answers 30 points

Answers

Answer:

c

Explanation:

the others dont use imagination

Why can theories be change but laws cannot?

Answers

Answer:

A law is a fact, theory is true until proven false.

Explanation:

A law is a fact that has been proven true through multiple observations. A theory is considered true until proven false.

How would extra carbon dioxide in a lake be removed

Answers

Answer:

The primary source of carbon dioxide in lake is decomposition of organic matter in the lake. This carbon dioxide is a huge problem for aquatic animals as they face problems during respiration.

Carbon dioxide in a lake can be removed  by chemical treatment using liming agents such as  sodium carbonate or hydrated lime and quicklime. These liming agents react with carbon dioxide and reduces carbon dioxide and  increases the pH and alkanity of the lake.

Two mule deer lock antlers as they demonstrate strength and worthiness to a female mule deer. The winner of this battle will mate with the female. Is it mutualism, parasitism, commensalism, predation or competition

Answers

Answer:

competition

Explanation:

It is a case of competition.

Competition is a form of relationship between two or more organisms sharing a common resource with each organism fighting for a larger or all the shares of the resource.

In this case, the female mule deer is the resource being fighting over.

The correct answer is, therefore, competition.

Use information in last class, along with what you learned in the diagrams above to fill in the blanks below using the terms:

tendons, actin, myosin, dystrophin, skeleton, myofibrils, fascicles

The muscles in the human body that are connected to bones and aid in the movement of the ______________ are called skeletal muscles. These muscles are connected to bones by ________________. Within each of the skeletal muscles are bundles of muscle fibers. These bundles are also called ___________________.
Each skeletal muscle fiber contains many ________________, which are rod-shaped and contains many sarcomeres (the functioning unit of muscle tissue.) Sarcomeres are made up of thin filaments (composed mainly of the protein _____________) and thick filaments (composed mainly of the protein ______________.) The actin of the outermost myofibril is connected to the cell membrane by a protein called ________________.

Answers

Answer:My answer in the first line is skeleton and the second line is tendons... These are the ones I know I hope it helps you

What is the function of the Golgi apparatus?(1 point) protein packaging waste packaging RNA packaging DNA packaging

Answers

it transports, modifies, and packages proteins and lipids into vesicles for delivery to targeted destinations

Answer:

transfer of information or nutrients

Explanation:

Which of the following events is a part of the Light reaction of photosynthesis?

Answers

Answer:

The events occurring in the light reaction of the photosynthesis are: Absorption of sunlight by the chlorophyll and release of the electron to the carriers. Photolysis of water to provide the electron to the chlorophyll. The release of molecular oxygen due to the photolysis of water.

Hope it helps:-)

Zygomycota produce
which germinate into new hyphae.
hyphae
asci
zoospores
zygospores

Answers

Zygospores

Zygomycota produce zygospores, which germinate into new hyphae.

Explanation;

The reproductive world of fungi ranges from bursting spores to fruiting bodies.

During asexual reproduction, some hyphae become spore-producing bodies called sporangia or conidia. The group of fungi known as Zygomycota develop sporangia within a sac. This sac then bursts to release the spores.

Once the spores land on a suitable habitat, they germinate a new hypha that grows into a mycelium.

Zygomycota, Ascomycota and Basidiomycota each reproduce sexually. The difference is the structure the spores form in. Basidiomycota form fruiting bodies called mushrooms or basidius; Ascomycota have sacs called ascus; and Zygomycota produce zygospore.

Answer:

the answer is Zygospores

Explanation:

What are sensory nerves and what is their function???

Answers

Answer:

Sensory nerves are the nerves connected to the sense organs.....Optic nerves are connected to the eyes,olfactory nerves are connected to the ear or nose am not so sure...These are the ones that I can think about for now.....Thank you for the question

Answer:

sensory nerves are use to detect changes in the environment and respond to them in a appropriate way.

Explanation:

their functions are smelling tasting and sounds

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