Habitat fragmentation has caused "several problems for the survival of various species."

What pair of statements about Blehert's and Behr's work represent an observation that was first made directly in the field and t

Nadusha1986 [10]

Answer:

The correct answer are option A. "A microbiologist with the U.S. Geological Survey grew crescent-shaped fungal spores in a lab on refrigerated plates" and option C. "A specialist with the New York State Health Department detected crescent-shaped fungal spores when examining a sample swabbed directly from a living bat with a white nose".

Explanation:

Doctor Blehert and Doctor Behr are two scientists that are studying the relationship between fungal disease and the development of the bat white nose syndrome. In order to prove that bat white nose syndrome is caused by a fungal disease Blehert and Behr first took samples in the field and later analyzed the samples in the laboratory. First, a specialist with the New York State Health Department detected crescent-shaped fungal spores when examining a sample swabbed directly from a living bat with a white nose. Later, the samples taken from the shaped fungal spores were grew in the laboratory on refrigerated plates by a microbiologist with the U.S. Geological Survey. After analyzing the samples, the scientists conclude that the bat white nose syndrome is caused by a fungal disease.

5 0

3 years ago

Explain scientifically whether humans and humpback whales share a close evolutionary relationship.

dsp73

Answer:

Explanation:

Whales and humans have alot of things in common, they are the largest groups of mammals in the world.

Whales which belong to cetaceans(group of marine mammals) can be considered human, they possess self awareness, feelings and high-level cognitive power than man.

They have large brain size which suggests that they have a complex and elaborate evolutionary history.

Humpback cerebral cortex, the part of the brain where though processes takes place are similar to that of man. Humpback whales exhibit complex social patterns that include good communication skills, collaboration and good tool usage.

Whales and human are quite social in nature.

7 0

3 years ago

2.86 A ball is dropped from rest from the top of a cliff that is 24 m high. From ground level, a second ball is thrown straight

Rashid [163]

Answer:

Distance Below the top = 6,02 m

Explanation:

To get the Final velocity of the first ball (that will be the intial velocity of the second) you need to solve the kinematic equation for Velocity:

(1) $V_{1f} =V_{1O} - gt$

As the ball is dropped from rest $V_{1O} = 0$ , so:

(2) $V_{1f} = - gt$

Note that the velocity is going to be negative as the ball is going down. To get the time it would take the ball to reach de base you can use the kinematic equation for position:

(3) $h_{1} = h_{1O} + V_{1O} *t - \frac{1}{2} gt^{2}$