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slavikrds [6]
3 years ago
6

What did the earliest vascular plants have

Biology
1 answer:
Nastasia [14]3 years ago
5 0

These had no leaves or roots, instead they had green photosynthetic stems which served as both anchors in the ground and photosynthetic surface.

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HELP ME i will give brainliest. if the age of the middle layer of a rock sample is between 600 million years and 1 billion years
Zielflug [23.3K]

Answer:

C

Explanation:

it couldnt be A or B

and ya know what people say "if you dont know pick c"

hope this helps

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3 years ago
Which area of the human cortex is most different from the brains of other animals?
maxonik [38]
Cerebral cortex is the area of human cortex that is different from the brains of other animals. Cerebral cortex functions is responsible for the thinking and taking in information in order to make a necessary action based on the perception that it receives. Cerebral cortex are divided into 4 lobes with a different function namely; frontal, temporal, parietal and occipital which are converts the sensory information that you receive.<span />
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2 years ago
List five conditions that can disrupt genetic equilibrium and cause evolution to occur
Colt1911 [192]
1. Non random mating
                                    In genetic equilibrium individuals must mate at random. However, in many species, individuals select mates based on heritable traits, such as size, strength, or coloration, a practice known as sexual selection.

2. Small population size
                                        Genetic drift does not have major effects on large populations but can affect small populations. Thus evolutionary change due to genetic drift happens more easily in small populations.

<span>3. Immigration or Emigration
                                                 Individuals who join a populations may introduce new alleles into the gene pool. Likewise individuals who leave may remove alleles from the gene pool. Any movement of individuals into (immigration) or out of (emigration) a population can disrupt genetic equilibrium, a process know as gene flow.

4. Mutations
                   Individuals who join a populations may introduce new alleles into the gene pool. Likewise individuals who leave may remove alleles from the gene pool. Any movement of individuals into (immigration) or out of (emigration) a population can disrupt genetic equilibrium, a process know as gene flow.

5. Natural Selection
 if different genotypes have different fitness, genetic equilibrium will be disrupted, and evolution will occur.</span>
6 0
2 years ago
In 14 days, the daily high temperature in Cedar Hills dropped by 16.8 degrees Fahrenheit. What is the average daily rate of chan
Bad White [126]

Answer:

B

Explanation:

Divide 16.8 by 14

5 0
2 years ago
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Which of the following is a biotic factor in an ecosystem?
erma4kov [3.2K]
Plants , biotic is living
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3 years ago
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