1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
slega [8]
3 years ago
11

18. Approximately when did the first plants and arthropods appear on land?

Biology
2 answers:
quester [9]3 years ago
5 0

Answer:

C.

Explanation:

LenaWriter [7]3 years ago
3 0

Answer:

C. 444 Ma

Explanation:

The first plants that managed to colonize the land appeared around 470 million years ago, while the first arthropods on land appear i the fossil records around 450 million years ago, so we can say that around the period of 444 million years ago they were well established on land. The first arthropods that started to have terrestrial life were almost identical to those in water, with only minor changes that enabled them to breathe and move more easily. The first plants on land were non-vascular plants. They were small as they initially didn't had deep and well established roots.

You might be interested in
How do the chemical structures of ribose and deoxyribose differ?
Anestetic [448]

Deoxyribose is the same as ribose but with two elements of oxygen add to it.

6 0
3 years ago
Read 2 more answers
You are studying for a test, and trying to figure out how to answer some of the questions your teacher gave you. Explain how you
lianna [129]
T controls your voluntary muscles — the ones that move when you want them to. So you can't dance — or kick a soccer ball — without your cerebrum.
8 0
4 years ago
Read 2 more answers
Having trouble researching this, does anyone understand it: Specialized microbes and enzymes in biotechnological applications to
SashulF [63]

Explanation:

This means that there is a specialized microbes and enzymes that are capable of transforming waste water in the pulp and paper industry into cleaner one. they purfiy water and turn it into clean water.

5 0
3 years ago
How are phytoplankton important to whales?
kompoz [17]

Answer:

A

Explanation:

They are the foundation of the aquatic food web, they get eaten by zooplankton and then they get eaten by fish and whales.

4 0
4 years ago
Read 2 more answers
What are the endocrine glands? What chemical product is present in the endocrine system? WORTH 20 POINTS
gtnhenbr [62]

Answer:

What are the endocrine glands?  : Endocrine glands are ductless glands of the endocrine system that secrete their products, hormones, directly into the blood.

What chemical product is present in the endocrine system? : The endocrine system is a collection of glands that secrete chemical messages we call hormones.

Explanation:

7 0
3 years ago
Other questions:
  • Im algae and plants,photosynthesis happens in
    7·1 answer
  • Which muscles can flex, extend and abduct the arm?
    14·2 answers
  • (1 point)
    9·2 answers
  • A man who is an achondroplastic dwarf with normal vision marries a color-blind woman of normal height. The man's father was 6 fe
    13·1 answer
  • Polio is a disease that can cause paralysis. Doctors treated patients with casts and braces, but the work of Elizabeth Kenny led
    12·1 answer
  • In chloroplast sugars are made in a compartment that is filled with thick fluid called the
    11·2 answers
  • Why is phosphorus a limiting growth factor in terrestrial ecosystems?
    12·1 answer
  • Sickle cell disease is a recessive trait which causes a deformation in red blood cells due to a mutation in the gene that codes
    14·1 answer
  • Suppose you are given a diffusion bag that is permeable to both water and a protein. You fill the diffusion bag such that it con
    8·1 answer
  • When many minerals are formed from where as water?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!