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DedPeter [7]
2 years ago
14

The vertebrates in which blood flows directly from respiratory organs to body tissues without first returning to the heart are t

he ________.
a. fishes
b. birds
c. mammals
d. reptiles
e. amphibians
Biology
2 answers:
natali 33 [55]2 years ago
8 0
The best answer among the following choices would be the first option aka A) Fishes because they have backbone and this is a description of their body.
Contact [7]2 years ago
6 0
Fishes :) hope this helps

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nydimaria [60]

Answer:

atlanta i think

Explanation:

In this case the reference point is Atlanta, this is where the family started their motion from. Such that this point may be used to describe their movement. It is sued to describe their movement to Baltimore.

5 0
1 year ago
In Zambia, which lions are likely to have migrated from a different population?
Margaret [11]
Zambian lions are split into two subpopulations, with one in the Greater Kafue Ecosystem in the west and the other in the Luangwa Valley Ecosystem in the east. Between these two geographically different regions lies Lusaka, Zambia's largest city, which is surrounded by farmland. males travel long distances to find new prides, while females remain in or close to the pride they were born in. So, for the lion, it's primarily males that are responsible for the movement of genes between prides. This male-mediated gene flow explains the lack of gene flow seen in mitochondrial genes compared to that of nuclear genes—female lions aren't making the journey, but they do mate with new males who come from far away.

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4 0
2 years ago
A caterpillar eats only plants. a robin eats the caterpillar. what is the role of the robin in this system? A: Producer B:Decomp
dmitriy555 [2]
I think is D.... But I will double check
5 0
2 years ago
Read 2 more answers
Two species of frogs belonging to the same genus occasionally mate, but the offspring fail to develop and hatch. What is the mec
cricket20 [7]

Answer:

The options

A. the postzygotic barrier called hybrid inviability

B. the postzygotic barrier called hybrid breakdown

C. the prezygotic barrier called hybrid sterility

D. gametic isolation

The CORRECT ANSWER IS A.

A. the postzygotic barrier called hybrid inviability

Explanation:

Postzygotic barrier is a mechanism that hinders reproduction after fertilization and zygote development. Hybrid inviability occurs when a mating between two organism produces a hybrid that can't strive past the embryonic stages.

In Reduced Hybrid Viability there is a lower tendency to survive for individuals whose parents possesses incompatible genetics, which may have result from sexual union of these parents from varying species.

These two frog species in this case study can be separated through the mechanism of the postzygotic barrier called hybrid inviability.

8 0
2 years ago
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Harrizon [31]
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