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Bezzdna [24]
3 years ago
10

Explain how gradualism, punctuated equilibrium, and extinction can be used to describe an organism's phylogenetic tree. ​

Biology
1 answer:
krok68 [10]3 years ago
8 0

Answer:i dont know

Explanation:

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Which statement about ocean surface currents is false
EastWind [94]

Answer:

B: "They have no effect on air temperature over land on the coast."

Explanation:

Edg 2021

6 0
3 years ago
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Earth’s water cycle, the movement of water between the oceans and the atmosphere, is an example of how the Earth is made up of d
klasskru [66]


True.

The earth is made of several subsystems or spheres that interact to form a complex and continuously changing (dynamic) state that is termed as the earth system.

Even though the earth system is a closed system, it self regulates through the subsystems  such as the water cycle and  carbon cycle.

The earth system is characterized by numerous overlapping cycles in which matter is recycled  over and over again. Cycles involve multiple spheres and systems interactions. Humans impact and are impacted by the cycles in various ways.


4 0
3 years ago
Activation of the sympathetic nervous system A. increases salivation and increases blood pressure. B. decreases salivation and i
yaroslaw [1]

Answer:

B. decreases salivation and increases blood pressure

Explanation:

The sympathetic nervous system is part of the autonomous nervous system which controls involuntary responses of the body such as salivation and blood pressure.

The sympathetic nervous system  is majorly responsible for body actions that are produced when threat is perceived. It generates responses referred to as the “fight or flight” response. Examples of such responses include, increased breathing, increased high blood pressure, dilation, decreased salivation, etc.

Activation of the sympathetic nervous system would result in rise in the blood pressure as can be witnessed by someone whose body has perceived a threat or reacting to a stressful situation.

The control of salivary production by the sympathetic nervous system  leads to the release of noradrenaline which acts on certain receptors that results in decrease in the production of saliva. This is evident in a person that is facing a threat also.

8 0
3 years ago
Men cannot be carriers of ___________________ traits.
snow_tiger [21]

Answer:

Men cannot be carrier of recessive X linked trait as, it only contain X chromosome which means that the X linked traits are get inherited from mother which are get displayed. The female are expressed X linked disorder during homozygous for disorder and they become carriers. So that means that the traits are related with X chromosome are never be carried by the men.

8 0
3 years ago
What would be the expected frequency of dewlap extensions a pushups in males while in the presence of females and a predator vs
aliya0001 [1]

Answer:

B

Explanation:

The correct answer is option B

B) Lower frequency for both dewlap extension and push ups.

After a predatory attack, both dewlap extension and pushup decreases whereas during mating with the female both dewlap extension and pushup tend to increase. So, from the above comparison we can say that expected frequency of dewlap extensions a pushups in males while in the presence of females and a predator decreases.

7 0
3 years ago
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