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kakasveta [241]
3 years ago
8

Cycadophyta is a group of plants with a small number of extant species, that is nevertheless well known from fossils from the Me

sozoic era. Living "cycads" are nearly identical to fossils. What best explains these "living fossils"?
A. Biological homology
B. Punctuated equilibria
C. Phylogenetic niche conservatism
D. Passive trends
E. Hopeful monsters
Biology
1 answer:
alisha [4.7K]3 years ago
6 0

Answer:

C. Phylogenetic niche conservatism

Explanation:

Based on the information provided within the question it can be said that the term that best explains these "living fossils" is Phylogenetic niche conservatism. This refers to the tendency that a specific species has for retaining certain traits from the ancestors. Which explains why the living "cycads" are nearly identical to fossils.

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3 years ago
Question 14 (1 point)
astra-53 [7]

Answer:

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3 0
3 years ago
What is osmolarity? Hemopoiesis?
Andrej [43]

Answer:

Osmolarity:

Osmolarity may be defined as the number of solutes dissolved in per solution of liters. The osmolarity plays an important role in the human body as it maintains the water electrolyte balance in the body. The osmolarity of the human plasma is about 275-299 milli-osmoles/kilogram.

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8 0
3 years ago
If light is removed from this environment the fish will eventually die explain why
Mariulka [41]
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6 0
3 years ago
Suppose the human trait for dimples is controlled by a simple dominant and recessive relationship at one locus. Dimples, D, is t
Alex

Answer:

a. Frequency of D =  0.223

b. Frequency of Dd = 0.347

Explanation:

n= 131 students

Dimples (DD or Dd)= 52 students

No dimples (dd)= 79 students

Applying the Hardy–Weinberg equilibrium, the frequency of the recessive allele d is found by:

d=\sqrt (dd)\\d=\sqrt(\frac{79}{131})\\d= 0.777

d=0.777

Therefore, the frequencies of the dominant allele, and the heterozygous genotype (Dd or dD) are:

D= 1 -d=1-0.777\\D=0.223\\F(Dd\ or\ dD) = 2*D*d\\F(Dd\ or\ dD) = 2*0.777*0.223\\F(Dd\ or\ dD) = 0.347

a. Frequency of D =  0.223

b. Frequency of Dd = 0.347

3 0
3 years ago
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