which era was the paleozoic era

Answer:

541 million years ago with the Cambrian explosion, an extraordinary diversification of marine animals, and ended about 252 million years ago with the end-Permian extinction, the greatest extinction event in Earth history.

source- Britannica

Explanation:

Which feature must a community have in order to use wind energy?
A. An average elevation change of 20 feet per mile to allow the wind
to flow downhill
B. Molten rock near groundwater supplies
C. Nets to keep birds and bats away from the turbines
D. An average wind speed of at least 15 miles per hour and enough
land to build several wind turbines
PLEASE HELP ASAP

Who suggested that the distance of a galaxy is proportional to its recessional speed

Counting a few organisms with in a population and multiplying that number
to estimate the total size of a population is an example of *

There has a been decrease in the diversity of plants in the grasslands of the Edward's plateau. What has caused this to occur?

Which ingredient is a food acid used to activate baking
soda in quick breads?
o honey
o buttermilk

A simple multiple choice question (good luck!!) [25 points]

Which of the following would be classified as a renewable resource?
O A barrel of oil that would take 8 million years to form.
A large piece of coal that would take 4 million years to form.
O Solar rays from the Sun that take 8 minutes to reach the Earth.
O Methane gas from the ocean floor that takes 7 thousand years to outgas.

3. A bacterium undergoes a mutation that
makes the bacterium resistant to an
antibiotic. Which is not an accurate statement
about the effect of this mutation?
A. This mutation could be considered an
adaptation.
B. A bacterium with this mutation would be
less likely to successfully reproduce.
C. The bacterium with this mutation would
have a greater chance of surviving
exposure to antibiotics.
D. A bacterium with this mutation would be
more likely to pass it on to offspring than a
bacterium without this mutation.

Would a cell lyse be hypertonic

What is climate change? O A. Lange-scale changes to weather patterns B. Increasing temperatures only C. Natural cycles of cooling and heating D. Decreasing temperatures only ​

Need help ASAP! Will give brainliest;) NO links please, will report.

Which statement is part of Darwin’s theory of evolution by natural selection?

A). Acquired characteristics that are inherited are the cause of evolution.

B). The organisms that are the fittest are always largest and strongest.

C). The number of offspring is not related to fitness.

D). More offspring are produced than can possibly survive.

When sea ice melts, there will be a significant amount of sea level rise.
O True
O False

pls answer pls please​

What enzyme digests fats and oils in the small intestine?
1. Lipase
2. bicaronate
3. gastric juices
4. hydrochlorase

Is a bird calls warning for prey a physical or behavioral adaptation?
Is an animals body temperature changing a physical or behavioral adaptation?
Is birds flying to high ground when they sense movement a physical or behavioral adaptation?

NO LINKS! NO PDF'S. Please, help ASAP!

HELP PLEASE IM CONFUSED!!!!!!!!!!!! BRAINLIEST TO THE ONE WHO GIVES ME THE CORRECT ANSWER!! IF YOU PUT A FILE OR LINK I WILL WRITE YOU DOWN AND REPORT YOU!!!!!!!!!!!!!!!!!!!!! NOT KIDDING!!

Which of the following is not a function of a vertebrate’s endoskeleton?

a.) Increase speed of digestion
b.) Protect major organs
c.) Offer support and structure
d.) Connect with muscles to create movement

Which part always comes FIRST in the scientific name?

Please!! I’ll give you lots of points!! PHow do the sensory spines most likely help the cockroach
survive in its environment?
A. They improve the cockroach's vision so it can see
predators sooner.
B. They allow the cockroach to change its body shape
to confuse predators.
C. They reduce the friction along the top of the
cockroach so it can move faster than predators.
D. They allow the cockroach to move through small
spaces where it is unable to use its feet to escape
predators.

8 amino acide are coded by _______ amino acids?

A person is observing the oscillations of a wave. If the wave source begins to move away from the person, what will the person notice?

A.
The wavelength will decrease.
B.
The wave appears to have a different amplitude.
C.
The wave appears to change speed.
D.
The wave appears to oscillate at a different rate.

Name three reasons why the atmosphere is important to life on earth and explain your reasoning.

PLS HELP! When I let go of a rock it falls down. What happens explain

Giving brainlist to whoever answers

HELPPp!!!!!!I’ll mark u brainly

Using what you read in this passage, evaluate the following vacation
activities. Which one would cause the least disruption of the balance of
the coral reef?
A
Sport fishing on the reef
B
Scuba diving to view the reef species
с
Collecting rocks and shells as souvenirs
D
Attracting sharks to the reef with bait for photos

how does an increase in volume affect the gas pressure in a balloon

The use of which of the following is not an agricultural practice that benefits soil microorganisms?
a.
crop rotation
b.
monoculture
c.
companion planting
d.
cover crops

Atoms are the most basic unit of matter. Two or more atoms from the same or different elements can combine to form molecules.
Cells are the most basic unit of life. Cells are made up of many different types of molecules. Which of the following accurately shows higher levels of organization within organisms, from least complex to most complex?
A. cells → organs → organ systems → tissues → organism
B. cells → tissues → organs → organ systems → organism
C. cells → organ systems → organs → tissues → organism
D. cells → organs → tissues → organ systems → organism

Which statement correctly shows the flow of energy in a food chain?

A.
Producer→ heterotroph → decomposer

B.
Producer ← consumer ← decomposer

C.
Autotroph← decomposer ← consumer

D.
Autotroph→ decomposer→ heterotroph