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Inessa [10]
3 years ago
15

PLEASE HELP I WILL MARK BRAINLIEST ALONG WITH EXTRA POINTS!! When environmental conditions are unfavorable, why is it an advanta

ge for green algae to reproduce sexually?
A.) they are multicellular when conditions are unfavorable, which favors sexual reproduction.
B.) Sexual reproduction produces larger numbers of offspring in less time.
C.) sexual reproduction produces offspring that have greater genetic variety and durable zygotes that can help green algae species survive unfavorable conditions.
D.) sexual reproduction produces multicellular algae instead of unicellular algae. Multicellular algae are better able to survive harsh conditions.
Biology
1 answer:
spayn [35]3 years ago
4 0
It’s C. Think about what sexual reproduction does to the green algae and how it relates to survival. If produced sexually offsprings will come out and turn out to be unique and have beneficial traits that the parents may not have to an unfavorable environmental condition.
Hope this helps! :)
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According to your equation, what isotope remains after the alpha decay of uranium-238?
Marianna [84]

Answers:

thorium-234

Explaination:

Isotopes are defined as the variants of a particular chemical element obtained by radioactive decay which makes it differ in neutron number and nucleon number but have the same number of protons in each atom.

Uranium-238 produces thorium-234 by alpha decay. alpha particle is a helium nucleus which carry 2 neutrons andn 2 protons with the mass number 4. In alpha decay, nucleus emits alpha particles which tranforms or decay into an atom with a mass number 4 less and an atomic number 2 less.

The equation for alpga decay is attached below:

Hence, the isotope is thorium-234 .

4 0
3 years ago
In mice, the allele for black fur is dominant to the allele for brown fur.
Xelga [282]

Answer:

50%

Explanation:

The allele for black fur (B) is dominant to the allele for brown fur (b).

  • BB or Bb = black fur
  • bb = brown fur

A male homozygous black mouse (BB) is crossed with a female brown mouse (bb). The male parent only produces<em> B</em> gametes and the female parent only produces <em>b</em> gametes. The F1 offspring will be 100% heterozygous Bb.

The F1 individuals will produce <em>B</em> and <em>b</em> gametes. If we cross the F1 individuals to each other (Bb x Bb), we'll get the following F2 offspring:

  • 25% BB homozygous dominant
  • 50% Bb heterozygous
  • 25% bb homozygous recessive

So 50% of the F2 will be homozygous (BB or bb).

8 0
3 years ago
Help please
lara31 [8.8K]
C maybe I don’t know which ones the male or female !
3 0
3 years ago
HELP WILL MARK BRAINLIEST
kati45 [8]

Answer:

a.  protein

b. lipid

c.  carbohydrate

d. carbohydrate

waterproof coverings and insulation- lipids

f- all of them

g- carbohydrate

h- protein

i- lipids

j- lipids

k- protein and carbohydrate

l- amino acid

Explanation:

Hope this helps!

6 0
3 years ago
The Process of isotopes breaking down an Emitting to particles such as alpha or beta from a new substance
Likurg_2 [28]

Answer:

radioactive decay

Explanation

It is also known by the name of nuclear decay or radioactivity. It is the process in which an unstable atom loses energy by emitting radiation.

7 0
3 years ago
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