Which phrase describes organisms that formed index fossils?
(a) Are extinct
(b) Had soft parts
(c) Were generally large
(d) Lived in a narrow geographic area​

Answers

Answer 1

Answer:

A.) Are extinct

You should mark me brainliest because I think I'm cool

Answer 2
Options (1), (2), and (4)

Index fossils are usually defined as those fossils that were present on earth for a very short period of time. They were very broadly distributed in almost all parts of the world. They were comparatively smaller in size and comprised of hard parts that were preserved under favorable conditions which are found at many places in the present. These are extinct species. For example, trilobites and ammonites.
These index fossils are very useful because it helps in determining the age of the fossils as well as rocks by applying the radioactive dating method.
thus, the correct answers are options (1), (2), and (4).

Related Questions

Plants like the stinging nettle seen here have sharp, needle-like hairs that inject a burning chemical into animals that touch the stems or leaves. These hairs are used for A) protection. B) reproduction. C) photosynthesis. D) attracting insects.

Answers

Answer:

A. Protection

Explanation:

These plants have this external protection system to protect them against being eaten by these animals.

In cases where these plants are approached to be eaten by these animals, these systems which in this case are these hairs tend to make an effort by discomforting the approaching animals.

The animals upon sensing this discomfort retreat from feasting on these plants which thus prolongs their lives and prevent them from being eaten by these animals

Which of the following is not a freshwater ecosystem? a. lakes b. rivers c. seas d. springs Please select the best answer from the choices provided A B C D

Answers

Answer:

c. seas

Explanation:

as they are salty and contain impurities.

Answer:

I got c correct

Explanation:

Stage 1 of Photosynthesis. Fill in the blank. ____________ in plant cells captures energy from _________.

Answers

Answer:

1st blank- chlorphyll

2nd blank: sun

Answer:

blank one the light dependent reaction blak two  chlorophyll

Explanation: hope this the right answer if it is not i'm sorry

Viruses cause disease by destroying cells and by disrupting the body's normal homeostasis. A virus can be fast-acting, such as the virus that causes the , or may belong to the group of viruses called retroviruses , which includes the virus that causes .

Answers

Answer:

The correct answer is -

The fast-acting virus causes: Meningitis

The slow-acting virus causes: AIDS (HIV)

Explanation:

A microorganism that can replicate inside a host cell and able to disrupt the homeostasis and leads to the killing or death of the cell. A virus can be either a fast-acting or slow-acting virus.

Meningitis is one of the fast-acting virus so fast that can result in the death of the person within 24 hours if not get proper medical assistance. Whereas retroviruses, a group of viruses that is slow-acting and grouped on the basis of their structure and replication method, the major disease that is caused by these viruses is AIDS by a retrovirus called HIV.

Answer:

Viruses cause disease by destroying (cells) and by disrupting the body's normal homeostasis. A virus can be fast-acting, such as the virus that causes the (common cold), or may belong to the group of viruses called (retroviruses) , which includes the virus that causes (influenza).

In a particular organism, scientists notice that cells are dying at a higher rate than normal. Upon further examination, they find that these cells die after they became filled with large lipids and protein of many different sizes. what do you predict is the reason for the cells death apex

Answers

Answer: lysosomes are malfunctioning so molecules targeted for destruction are not being removed.

what determines how far south the cold air from the north pole travels

Answers

Answer:

Please mark as Brainliest.

Explanation:

Polar easterlies are the cold and dry wind that blows from the polar regions (North pole and South pole) to the region of 60 degrees latitude. This type of wind is formed due to the sinking of the cold air resulting in the formation of a high pressure zone at both the poles. This wind when blows from the poles to the 60 degrees latitude, it slightly gets deviated towards the western side because of the effect of the Coriolis force. This Coriolis force comes into the picture due to the earth's continuous rotation.

Thus, the polar easterlies determines how far south the cold air travels from the North Pole.

What is the consequence of global warming

Answers

Answer:

climate change, rising temperatures affecting wildfires, ocean warning etc.

Also PLEASE PLEASE PLEASE PLEASE give m brainiest i need it please I WOULD REALLY APPRECIATE IT ALOT  

Explanation:

Which statement is true?
O A. Opinions can be scientifically tested.
OB. Scientific theories are absolute and cannot be changed.
OC.
Scientists have learned all they'll ever know about science.
OD.
Facts can be scientifically tested.

Answers

Answer: D. Facts can be scientifically tested.

Which lobes of the brain were most affected?

Answers

Frontal and parital lobe

HELP ME PLS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Compare the data shown in the table. What reasonable conclusion can be made from the information given?

Answers

I’m not sure but I think that and answer is C...hope that helped

Why are the tais pointing inward in layer H

Answers

Answer:

Because they are hydrophobic

Explanation:

The image shows a cell membrane, which is made up a phospholipid bilayer. The phospholipid bilayer is made up of a phosphate head, which is hydrophillic, and fatty acid tail, which is hydrophobic. That means they are repelled by water.

Because the tails are hydrophobic, they are repelled by the water towards one another, while the heads remain facing outwards,

What factors account for a location's whether?​

Answers

Latitudinal location :)

MAKING BRAINLIEST, THANKS AND FIVE STARS TO CORRECT ANSWER!! PLZ AND THANK YOU. HAVE A GREAT DAY :D

A sperm cell joins with an egg cell during:


fertilization


pollination


mitosis


growth

Answers

Answer:

Fertilization !!

Explanation:

When the egg and sperm cells combine in fertilization, they merge the two sets of chromosomes.

Hope i helped :)

need help on this please

Answers

Answer:

H2O description is that it moves through the ground.

Explanation:

Water moves through any small pockets.

true or false?
with explanation

Answers

Answer:

true

Explanation:

the body has the means of producing insulin but cannot due to either a hormonal imbalance or deficiency thus raising their levels

Earth is 150 million kilometers from the sun, and the solar "wind" travels at about 400 km/sec. How long does it take particles from a solar storm to reach Earth? (Hint: Time = Distance / Speed. To convert from seconds to hours, divide the time in seconds by 3600.)

Answers

Answer:

The correct answer is - 4.34 days.

Explanation:

Given:

Distance from the sun to earth = 150 million kilometer

= 1500,00,000 km

The solar "wind" travels = 400 km/sec

= 400*60*60 km/ hour

= 1440000 km/hour

Then time = distance/speed

time = 1500,00,000 km/1440000 km/hour

time = 104.166666667 hours

time = 104.166666667/24

=  4.34 days.

What would be the main problem with reproduction if meiosis did not take place to form sex cells?

A.The zygote would have two nuclei.
B.Fertilization would result in a zygote with half as many chromosomes as the parents.
C.Fertilization would result in a zygote with twice as many chromosomes as the parents.
D.The zygote would have no nucleus.

Answers

Answer:

c.

Explanation:

Answer:

C. Fertilization would result in a zygote with twice as many chromosomes as the parents.

Explanation:

24. A wolf is a KEYSTONE species. Explain how the wolf indirectly affects the
population numbers of plants.

Answers

Wolves have both direct and indirect effects on their ecosystem; their prey is harmed, their prey is significantly impacted by the species of plants and animals below them, and so on down the chain. This top-down impact cascade occurs alongside bottom-up effects, all within the same ecosystem.

Of the three waves shown, Wave 2 has the greatest
wave speed, because it has more crests than the other ropes
O frequency because it has a large wavelength than the other ropes
wave speed because the rope is moving up and down faster than the other ropes
frequency, because there are more crests in the same length of rope than there are in the other waves

Answers

Answer:

D. frequency, because there are more crests in the same length of rope than there are in the other waves

Explanation:

Wave frequency is defined as the number of waves passing a fixed point at a given time.

Wave frequency is highly influenced by the number of crests in the wave that pass the fixed point in 1 second. It means, more is the number of crests in the same length of rope, the higher will be the wave frequency.

Wave 2 has a maximum number of crests and thus wave 2 has the greatest wave frequency in comparison to other ropes.

Hence, the correct answer is "D".

FREE BRAINLEST (I think that’s how it’s spelt lol don’t make fun of me)

WHOEVER CAN MAKE ME LAUGH FROM A FUNNY JOKE OR STORY WILL GET IT!

GOOD LUCK!~

Answers

Answer:

girl ummmmmmm,,,,, i need these points so...why did the chicken cross the road? to get to the other BAWK *gets hit by car and dies*

Answer:

joke

Explanation:

once there was a boy that was eating icecream with his grandma he was so concentrated on eating icecream that he bumped on someone and the icecream fall, he wanted to take it from the floor and eat it again, but his grandma said ''no fallen things are no longer edible'' then after a while the grandma felt ill and fell to the floor then she said grandson help me to stand up and the boy says '' no grandma, we cannot peak up fallen things

If a star is 300 light-years from Earth, how long does it take light from that star to reach Earth?

Answers

Answer:It would take 300 years.

Explanation: Light years are how much light travels in a year. Thus it would take 300 years for light to travel to earth if a star is 300 light years away.

Answer:

300 light years! :)

Explanation:

i hope this helps you! <3

please help me lol . it’s easy but i’m rlly lazy :) tysm i’ll mark u blainlist ik it’s a lot of work !!

Answers

Answer:

this must be 8th grade work am I correct?

Explanation:

What type of memory is used for
actions that become automatic?
A. Episodic
B. Semantic
C. Procedural

Answers

Answer:

B

Explanation:

Answer:

C. Procedural

Explanation:

The correct answer is C.

If an H is for tall trait which is dominant and h is the recessive trait for short,
which of the following crosses will result in 1:1 tall:short progeny (offspring).

A) HH Xhh
B) hh X hh
C) Hh X hh
D) Hh X Hh

Answers

Answer:

The cross that guarantees a height trait ratio in the offspring of 1 : 1 high/low is Hh X hh (option C).

Explanation:

For a characteristic such as size, where tall (H) is the dominant trait and short (h) is the recessive, the crossing of a tall heterozygous (Hh) individual with a short one will have a probability that half of the offspring will be tall and the other half short.

This can be demonstrated with a Punnett square:

Cross Hh X hh

Alleles      H      h

h              Hh    hh

h              Hh    hh

Based on this result, half of the offspring will be tall, with genotype Hh, and the other half short, with genotype hh, which corresponds to a tall : short ratio of 1 : 1.

In the other options is not possible to obtain this result:

A) HH Xhh  = 100% Hh.

B) hh X hh  =  100% hh.

D) Hh X Hh = 50% Hh, 25% HH and 25% hh.

As succession reaches equilibrium or climax the biodiversity:
A. Increases
B. Decreases

Answers

Answer:

B

Explanation:

The answer is decreases

Foods usually
when they are processed.
Ο Α
O A
become more expensive
B
lose some nutrition
С
change into smooth paste
OD
turn unusual colors

Answers

What is the question

Large, circular lily pads are able to float on the water's surface.

Answers

Answer:

true

Explanation:

they're buoyancy

The property of water in "Large, circular lily pads are able to float on the water's surface" is cohesion.

What is cohesion?

Cohesion refers to the attraction of one water to another. This force will cause the water in the lake to develop surface tension. The large and thin leaf of the water lily gives it a low force per area.

The leaf will float above the water if the force acting on the surface is not greater than surface tension. The ability of water spiders to walk on the surface tension of the water.

The leaves of lotus float on the water because the bottom of the leaves have edges and thick ribs that capture air between them, which helps them to float on the water.

Thus, the property of water that is shown in the given statement is cohesion.

To learn more about cohesion, refer to the below link:

https://brainly.com/question/14759334

#SPJ2

The question is incomplete. Your most probably complete question is given below:

Identify which property of water cohesion, adhesion, or heat capacity applies to each observation below.

1. Large, circular lily pads are able to float on the water's surface.

What backs up a scientific law?

Answers

Answer:

Scientific laws are similar to mathematical postulates. They don't really need any complex external proofs; they are accepted at face value based upon the fact that they have always been observed to be true. Specifically, scientific laws must be simple, true, universal, and absolute.

Explanation:

What would happen if the mitochondria were missing from a cell?

Answers

Answer:

We'd be in big trouble...

Explanation:

The mitochondria is the powerhouse of the cell, without mitochondria (singular, mitochondrion), higher animals would likely not exist because their cells would only be able to obtain energy from anaerobic respiration (in the absence of oxygen), a process much less efficient than aerobic respiration.

The absence of mitochondria would have a profound effect on cellular function, including the cell's ability to produce energy, regulate ROS levels, and control important signaling and metabolic pathways. Such a cell would likely be unable to survive for very long.

What is the effect of mitochondrial removal?

Without mitochondria, the cell would not be able to generate ATP through aerobic respiration, which takes place in the mitochondria. Instead, the cell would have to rely on other, less efficient metabolic pathways to produce energy. Mitochondria are also important for regulating the levels of reactive oxygen species (ROS) in the cell. Without mitochondria, the levels of ROS would likely increase, leading to oxidative damage to the cell's proteins, lipids, and DNA. Mitochondria play important roles in cell signaling pathways, including those involved in apoptosis (programmed cell death) and calcium signaling. Without mitochondria, these pathways would likely be altered, which could have profound effects on cellular function and survival.

Hence, such a cell would likely be unable to survive for very long.

Learn more about the mitochondrial removal here.

https://brainly.com/question/241317

#SPJ2

In Wisconsin the average snowfall was 50 inches for the year while in Illinois the average snowfall was 34 inches write the ratio of snowfall in Wisconsin and Illinois for the year

Answers

Answer:

it is 50 to 34

Explanation:

just did a class on ratios

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