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kakasveta [241]
4 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]4 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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Resource partitioning results in: a move from the realized niche to the fundamental niche for both species. individuals of each
bazaltina [42]

Answer:

a move from the fundamental niche to the realized niche for both species.

Explanation:

The niche of an organism is the functional role of the organism in the community or the ecosystem as a whole. This include the environment an organism lives and all the jobs it does in it.

Fundamental niche refers to all the possible functional roles of an organism in an ecosystem while realized niche refers to the specific roles the organism is limited to as a result of resource limitation, competition or other factors.

Resource partitioning involves the division of limited resources among organisms so as to avoid competition within the niche.

<em>Hence, resource partitioning causes a move from the fundamental niche of an organism to the realized  niche of that organism. </em>

7 0
3 years ago
A small branch of the optic nerve, known as the ____ path extends directly from the retina to the scn.
svetoff [14.1K]

Answer;

Retinohypothalamic path


A small branch of the optic nerve, known as the retinohypothalamic path extends directly from the retina to the SCN.


Explanation;

The SCN is an abbreviations for suprachiasmatic nucleus or nuclei; which is a region in the hypothalamus. that is responsible for controlling circadian rhythms.

Retinohypothalamic path is a neural input pathway that extends directly from the retina to the SCN.


7 0
3 years ago
A drug that is meant to reduce blood pressure would have which of the following effects?
lozanna [386]
High blood pressure medications flush extra water and sodium (salt) from your body. Diuretics may cause these side effects: Extra urination. Extra water out means more time in the bathroom.
4 0
3 years ago
Any change in allele frequencies in a gene pool is
Goryan [66]
Any change in allele frequencies in a gene pool is a mutation 
8 0
3 years ago
Which of the following would be regarded as compounds?<br>A) H2 <br>CI <br>c) 02 <br>D) CH4 ​
Anastasy [175]

Answer:

its C

Explanation:

5 0
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