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
Lesechka [4]
3 years ago
6

When and where was the possibility of growing thornless varieties of plants discovered?

Biology
1 answer:
m_a_m_a [10]3 years ago
7 0
<span>The discovery of thornless plants was made around the turn of the 20th century. To name one such thornless plant, particularly, the Blackberry plant, the deviation from the thorned blackberry canes were discovered in the United States. Since then, several different thornless blackberry varieties have been cultivated for fruit gardens.</span>
You might be interested in
Someone help me please
r-ruslan [8.4K]
Because there are too many sex chromosomes I think
8 0
3 years ago
How do geologic timelines help scientists?
Otrada [13]

Answer:

They used relative dating to divide Earth's past in several chunks of time when similar organisms were on Earth. Later, scientists used absolute dating to determine the actual number of years ago that events happened. The geologic time scale is divided into eons, eras, periods, and epochs.

Explanation:

7 0
3 years ago
_________ not only transmit pathogens, but also serve as hosts for the multiplication of the pathogen during some phase of the p
fomenos
Biological vectors
Hope it helped
7 0
3 years ago
During the second and third trimesters of pregnancy, a daily increase of __________ calories is recommended
xz_007 [3.2K]
Hey There

Correct answer: <span>During the second and third trimesters of pregnancy, a daily increase of <u>healthy </u>calories is recommended

Why?  Because you need more food to help the baby grow, you are eating for two people

Have a good day</span>
6 0
3 years ago
Which one of the following is an example of intrinsic motivation?
Ber [7]
The answer is studying for a test because you want to feel proud of your performance. Intrinsic motivation means you do something for the sake of your internal feelings/motivation, not based on something or someone external like a paycheck or significant other.
4 0
3 years ago
Read 2 more answers
Other questions:
  • What nucleic acids are only in DNA
    14·1 answer
  • If all living things are related then where did all their differences come from?
    15·1 answer
  • Identify a cell and 3 list 3 reasons why i know this to be true
    9·1 answer
  • Write a compare-and contrast analysis to compare the way two different texts present similar ideas.
    11·1 answer
  • Bacteria containing plasmid vectors are often identified by which process?
    14·1 answer
  • A tricky question with no single right answer: In maintaining the functional shape of an enzyme, are the non-covalent interactio
    11·1 answer
  • a woman who is heterozygous for hemophilia marries a normal man. what will be the possible phenotype ratio of their children?
    10·1 answer
  • What is the GDP per capita in Nicaragua?<br> $3,900<br> $5,900<br> $7,900<br> $9,000
    10·2 answers
  • Which is an example of a decomposer?<br> A a hawk<br> B a mouse<br> C a flower<br> D a mushroom
    11·2 answers
  • Myelin sheath consists of axon?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!