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
Alla [95]
3 years ago
13

Plant life first appeared on land during which of the following periods?

Biology
1 answer:
marusya05 [52]3 years ago
3 0

The correct answer is B. Ordovician period

Explanation:

Plants are mainly multicellular organism that depends mainly on photosynthesis to obtain energy, this includes a wide variety of species such as grass, flowering plants, trees, shrubs, etc. Additionally, plants are considered as one f the two major divisions or kingdoms along with animals. In terms of history, it has been determined first land plants appear during the mid-Ordovician period around 470 million ago, although organisms that were the origin of land plants developed in water in previous periods, also by the Devonian period a wide variety of plants have emerged with features that are still part of plants nowadays. Therefore, plant life first appeared on land during the Ordovician period.

You might be interested in
In tomatoes, tall (D) is dominant over dwarf (d) and smooth fruit (P) is dominant over pubescent fruit (p), which is covered wit
juin [17]

Answer:

The correct answer would be - Dd Pp.

Explanation:

As it is given that tall D is dominant over dwarf d and smooth plant Pis dominant over pubescent p so the the genotype of dominant trait that is tall and smooth tomato plants would be DDPP . similarly the recessive trait that is dwarf and pubescent plant would be ddpp

Thus, the cross between these would be -

DD PP x ddpp

And gametes would be - DP,DP, dp, and dp.

So, all the 16 offspring would have Phenotype would be heterozygous tall and smooth and DdPp genotype .

Thus, the correct answer would be - Dd Pp.

5 0
3 years ago
If we describe the appearance of an individual, we are describing their
aliya0001 [1]
A. Phenotype. 
Genotype is the genetic constitution of an individual organism, genetic makeup is part of the DNA sequence, and personality is the way a person acts. 
6 0
3 years ago
Read 2 more answers
Choose the ONE BEST answer explaining how oxaloacetate and acetyl-CoA levels are balanced to maximize flux through the citrate c
lutik1710 [3]
The answer is d if u arrange them by letters
8 0
3 years ago
What would happen if you did an experiment in which the iodine solution was placed in a baggie, and the starch solution was in t
Charra [1.4K]
The iodine would move out of the baggie and the starch would change color
5 0
3 years ago
A person shakes up vinegar and oil dressing before pouring it on salads. what is the chemical reason for doing this
jasenka [17]

The vinegar is a charged molecule, whereas, the oil is neutral. As like dissolves like, the vinegar can be dissolved with charged molecules and the oil can be dissolved with neutrals. So, to mix vinegar and oil shaking is required.

In case, the person does not mix oil and vinegar dressing before pouring this on the salad, it would not produce a good taste, as the content of vinegar and the oil would not be appropriate.

3 0
3 years ago
Other questions:
  • H is the allele for long hair
    5·2 answers
  • Maria lost her job because the economy is shrinking. This is an example of
    12·2 answers
  • Explain why components that are naturally found in air can be considered air pollution
    8·2 answers
  • While not an official step in the process, Acetyl CoA formation is a transition between glycolysis and krebs, and occurs only in
    6·1 answer
  • How much heat is needed to raise the temperature of 28g of water to 74 Celsius
    7·1 answer
  • ecology is the study of environmental interactions at the following levels, from least inclusive to most inclusive: __________.
    11·1 answer
  • Question 9: What conclusion can you make regarding how humans affect biodiversity? Use evidence
    12·1 answer
  • What are the nuclear particles assumed to hold the nucleons together
    15·1 answer
  • Which trait is unique to birds?<br><br> Flight<br> Wings<br> Endothermic<br> Feathers
    14·2 answers
  • Constant loud sound can cause permanent damage to the structure of which of these?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!