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
Pavlova-9 [17]
2 years ago
12

Throughout human history, major migrations have been spurred by sharp decreases in the availability of food caused by hazards or

changes in
climate. For example, the Choose....(irish potato famine) or (dust bowl)
was the result of a drought and wind-driven erosion. The
Choose...(irish potato famine) or (dust bowl)
on the other hand, was caused by a fungal disease that infected an important crop.
Biology
1 answer:
oee [108]2 years ago
4 0

Answer:

Dust bowl

Irish Potato famine

Explanation:

You might be interested in
How do the nutrients in soil become building materials for a plant to grow?
Sever21 [200]

The nutrients from the soil is taken up by the roots to be distributed to the entire plant. The plant absorbs the nutrients into its cells and utilized by the leaves, stem, trunk. They are also used to grow flowers and to bare fruits.

Moreover, the nutrients are divided into two groups; first the macronutrients which is needed by the plants in large amount such as nitrogen, phosphorus, potassium, calcium, magnesium and sulfur. Second group is the micronutrients, needed in tiny amounts that include zinc, copper, manganese, boron, iron, sodium and cobalt. These two groups are essential for normal plant growth and development.

 

3 0
3 years ago
Sleep deprivation increases levels of the hunger-arousing hormone _______ and decreases levels of the hunger-suppressing hormone
Rina8888 [55]
The answers are ghrelin and leptin
4 0
3 years ago
How are plants of the savanna's highly specialized to grow in this environment of long periods of drought?
dexar [7]

Answer:

In trees, most savanna adaptations are to drought--long tap roots to reach the deep water table, thick bark for resistance to annual fires (thus palms are prominent in many areas), deciduousness to avoid moisture loss during the dry season, and use of the trunk as a water-storage organ (as in baobab).

7 0
3 years ago
LUIZ
oksano4ka [1.4K]

Answer:

anwser is C

Explanation:

they both have 6 carbon atoms so A is wrong

both are monosacchride so B is wrong

both have same molecular formula which is (C₆H₁₂O₆) so D is wrong

in glucose the anomeric carbon is the first carbon, whereas in fructose, the anomeric carbon is the second carbon. The anomeric carbon is the one containing the carbonyl group (carbonyl group is a functional group composed of a carbon atom double-bonded to an oxygen atom: C=O)

4 0
3 years ago
A rooster with gray feathers is mated with a hen of the same phenotype. Among their offspring, 15 chicks are gray, 6 are black,
m_a_m_a [10]

Answer:

Alleles for feather colour exhibit incomplete dominance or co-dominance.

50% gray offspring + 50% black offspring

Explanation:

<em>It means that the alleles for feather colour in the hen exhibit incomplete dominance or co-dominance over one another.</em>

Assuming the allele for white colour is B, white colour will be b while the heterozygote Bb gives the gray phenotype.

Gray rooster + gray hen = 15 gray chicks, 6 black chicks and 8 white chicks.

15:6:8 is roughly 2:1:1 which is phenotypic ratio obtainable from crossing two heterozygous individuals as pointed out by Mendel.

Bb   x   Bb = 1BB, 2Bb, and 1bb

Crossing the gray rooster (Bb) with a black hen (bb):

Bb   x   bb = Bb, Bb, bb, and bb

          = 2Bb (gray):2bb (black)

50% of the offspring will be gray while the remaining 50% will be black.

7 0
3 years ago
Other questions:
  • The history of the present illness (hpi) is documented in which section of the patient record?
    12·1 answer
  • What species is on top of the food chain eagle, mountain, or a mouse
    14·2 answers
  • What is a Barr body, and where is it found in a cell? b) Define the Lyon hypothesis.
    15·1 answer
  • What happens to the expression of the lacI gene if lactose is not available in the cell? View Available Hint(s)
    5·1 answer
  • What structure do all vertebrae embryos contain
    10·1 answer
  • What substance in oxidized during cellular respiration ?
    13·2 answers
  • Why are velcro and special handles needed in space exploration? Describe three situations in which this equipment is used.
    12·1 answer
  • This is sugar found in the side chains of DNA.​
    9·1 answer
  • Which group of bacteria is most likely responsible for stew fish spoilage in Anastacia's refrigerator cooler?
    14·1 answer
  • What is the correct order of the following layers, from youngest to oldest?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!