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grigory [225]
3 years ago
9

Please help me, I need help.

Biology
1 answer:
garik1379 [7]3 years ago
8 0

Answer:

D?

Explanation:

yo use science to figure vaccines for viruses and medicines

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The location of plate boundaries is most helpful in predicting the location of
k0ka [10]

Answer:

The movement and interaction of tectonic plates helps to explain many of Earth's features. Interpret data showing topography, the age of the sea floor, the location of volcanoes, and the location of earthquakes to predict the location and type of plate boundaries in a region.

Explanation:

7 0
3 years ago
tall heterozygous pea plants were crossed and the resulting seeds grown. Out of 360 plants, 270 were tall and 90 dwarf. What des
lozanna [386]

Answer:

This question lacks options, the options are:

A. All 270 tall plants were heterozygous

B. All 270 tall plants were homzygous.

C. Only 90 plants were homzygous.

D. All dwarf plants were homzygous.

The answer is D.

Explanation:

This question involves a single gene coding for height in pea plants. The allele for tallness (T) is dominant over that of dwarfness (t). This means that a dwarf plant can only be homzygous recessive (tt) while a tall plant can either be homzygous (TT) or heterozygous (Tt).

According to the question, two tall heterozygous pea plants were crossed i.e. Tt × Tt. Based on this cross, a phenotypic ratio of 3:1 is expected, which is in accordance with the 270 tall plants and 90 dwarf plants (360 total) that was obtained in the cross. Since dwarfism in pea plants is a recessive trait, this means that all the dwarf plants produced in this cross (90) were homzygous (tt).

3 0
3 years ago
Hello! Happy New Years! If someone could help me with this problem real quick, I would greatly appreciate it! Thanks in advance!
Vladimir [108]

Answer:

increase in water vapor and decrease in energy leaving the planet and increase in temperatures.

Explanation:

This is just what I think I might be wrong though.

5 0
2 years ago
Why do some animals migrate or hibernate?
Ivenika [448]
From what I've learned so far about hibernation and migration...
Some animals migrate to head towards warmer weather and plentiful food.
Some animals hibernate to conserve energy so they can survive the harsh winters with little to no food at all.
I hope this helped you answer your question.
8 0
3 years ago
What is a plant cell’s source of energy for photosynthesis
erik [133]
The answer you might be looking for it the ‘sun”
7 0
3 years ago
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