Which question is most likely to be found in a dichotomous key for identifying a tree by its leaves?

Answers

Answer 1

Answer:

leaf bases attached opposite to each other on the branch.

What is Dichotomous key?

A dichotomous key is an identification technique that repeatedly divides groups of organisms into two categories.

More details regarding the unique characteristics of a given organism are disclosed with each successive division. Once the organism no longer exhibits all of the chosen traits in concert with any other organism, it has been recognized.

In order to identify specimens with a dichotomous key, it is recommended to employ immutable traits (i.e. features that do not change). Size, coloration, and behavioral habits can all change across people and over the course of a lifetime.

Therefore, leaf bases attached opposite to each other on the branch.

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Answer 2

Answer:

Answer:

Are the leaf bases attached opposite to each other on the branch? Answer C 2020

Explanation:

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For questions 1-5 decide whether the example is a producer, consumer or decomposer. A rabbit is an example of a _________. Question 1 options: A.Producer B.Consumer C.Decomposer

Answers

a rabbit is a consumer

a consumer eats plants or other animals. Such as: lion, bear, horse, human, etc. Organisms that eat autotrophs; these organisms are called herbivores or primary consumers -- an example is a rabbit that eats grass. The next link in the chain eats herbivores - these are called secondary consumers -- an example is a snake that eats rabbits.

Which microscope did Anton van Leeuwenhoek use to observe single-celled organisms?A) simple microscope
B) compound light microscope
C) electron microscope
D) tunneling microscope

Answers

the microscope that Anton van Leeuwenhoek use to observe single-celled organisms is : a. simple microscope, which is the type of microscope that only has one lens. Anton van leeuwenhoek conducted his studies in the 1600s. During that time period, we haven't developed any type of high-end microscope that exist today

I need a little help with these biology questions:1. which of the following brought about an increase in human populations by increasing the amount of food and medicine available and decreasing the death rate:
a. industrial revolution
b. world war ii
c. the internet
d. invention of the car

2. which of the following is a direct value of biodiversity:
a. biogeochemical cycles
b. the agricultural value of pollinators
c. regulation of climate
d. provision of fresh water

3. environmental impact of a population includes all of the following except:
a. pollution
b. population size
c. resource consumption
d. predation

4. in what life history pattern does logistic population growth occur:
a. density-dependent pattern
b. opportunistic pattern
c. biotic pattern
d. equilibrium pattern

5. what characteristic of a population increases with plentiful resources:
a. range
b. clumping
c. spatial distribution
d. population density

Answers

1. A
2. B (guess)
3. B
4. D (guess)
5. D (most likely)

Actions that are reactions to a stimulus are called _____________________.

Answers

The answer is reflex actions.

A reflex action is an involuntary and rapid reaction to a stimulus. So, when a receptor detects a stimulus, the information is sent to relay neuron through a sensory neurone. Relay neuron sends information to the effector through a motor neurone and effector produces a response.

What is water pollution??

Answers

water pollution is the contamination of water bodies (e.g lakes, rivers, oceans, acquifers, groundwater).

According to the _____ model, evolution occurs in spurts; species evolve relatively rapidly then remain unchanged for long periods.

Answers

Answer:

According to the punctuated equilibrium model, evolution occurs in spurts; species evolve relatively rapidly then remain unchanged for long periods.

Explanation:

The theory of punctuated equilibrium maintains that during most of the time of existence of a species it would remain stable or with minor changes, that is, in periods of stasis or periods of morphological stability, followed by rapid and abrupt events of evolutionary changes. This model was proposed by evolutionary biologist and paleontologist Stephen Jay Gould and his colleague Niles Eldrege. This theory includes the phenomena of stasis and the sudden or instantaneous appearance of forms in the normal process of speciation, that is, formation of new species.

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In chemical reactions, enzymes ____________ the chemical reaction by ___________the activation energy.A: speed up; lowering B: raise the temperature of; increasing C: is crossed out D: gathering materials for; increasing

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