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
pogonyaev
2 years ago
10

Plants are thought to have evolved from aquatic algae. true or false

Biology
1 answer:
Yuliya22 [10]2 years ago
5 0

Answer:  false

Explanation:

You might be interested in
Describe how mutation and genetic recombination increase genetic variation
Gekata [30.6K]

Answer:

Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

Explanation:

Hope this helps.  

3 0
3 years ago
Plz help me<br>I will give u like plus follow u​
Zarrin [17]

\hookrightarrow\large\sf \: Pepsin \: is \: an \: example \: of \:  \boxed{\underline{\bf \: protease.}}

4 0
2 years ago
Read 2 more answers
In a population of plants, the allele for long stems (S) is completely dominant over the allele for short stems (s). If 35% of t
Sergio [31]

Answer:

The correct answer would be 48 percent.

It can be solved by using the Hardy-Weinberg equation.

p² +  2pq+ q²  = 1

p + q = 1

where, p² represents homozygous dominant's frequency that is, SS in this case,

q² represents homozygous recessive's frequency that is, ss in this case,

2pq represents heterozygous dominant's frequency that is, Ss in this case.

p represents dominant allele's frequency and q represents the recessive allele's frequency.

Now, the percentage of homozygous recessive or short stems is 35%. Therefore, the frequency of homozygous recessive would be 0.35.

Thus, the value of q² = 0.35

So, q = \sqrt{0.35} = 0.59 which is approximately equals to 0.6.

As p + q = 1 so, q = 1 - 0.6 = 0.4

The frequency of heterozygous (Ss) = 2pq = 2(0.6)(0.4) = 0.48

Hence, the frequency of heterozygous would be 48 percent.

8 0
3 years ago
Which of these is a product of cellular respiration:
mojhsa [17]

Answer:

is b b/se the reason is ATP

6 0
2 years ago
What is not a contribution of the cardiovascular system to other body systems?
Vinvika [58]

OPTIONS:

a) Blood delivers calcium and phosphate ions that are needed for building bone extracellular matrix.

b) Blood carries carbon dioxide to body tissues and removes oxygen for use by other organs.

c) Blood carries newly absorbed nutrients and water to the liver.

d) Blood circulates cells and chemicals that carry out immune functions.

e) Blood delivers clotting factors and WBCs that aid in hemostasis when skin is damaged

Answer:

b) Blood carries carbon dioxide to body tissues and removes oxygen for use by other organs.

Explanation:

Options a, c, d, e are all true statements about the contributions of the cardiovascular system to other body systems except option b which states that “Blood carries carbon dioxide to body tissues and removes oxygen for use by other organs”.  

Actually, the cardiovascular system works together with the respiratory system to supply oxygen to body tissues as blood is circulated in the body, while carbon dioxide is removed from the body at the lungs. <em>In order words, carbon dioxide is removed, while oxygen is picked up as blood is transported through the capillaries of the lungs. </em>

8 0
3 years ago
Other questions:
  • Explain why the adrenal and thyroid glands atrophy if the pituitary gland ceases to function
    5·2 answers
  • Is hunger the best indicator that the body needs fuel?
    5·2 answers
  • Which statement is correct about the total mass of glucose formed during photosynthesis?
    5·2 answers
  • Can anyone help with this problem ?
    5·1 answer
  • Which of the following is the best definition of Genetics?
    10·1 answer
  • According to the cell theory where did this cell come from?
    10·1 answer
  • HELP <br> Does anyone know this?
    14·1 answer
  • How should trash and recyclables be stored?
    14·1 answer
  • a firefighter wakes in the middle of the night to the sound of an alarm. it is likely that her have released epinephrine and nor
    6·1 answer
  • What would decrease the amount of oxygen discharged by hemoglobin to peripheral tissues?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!